* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
@ 2019-07-28 15:57 Lukas Auer
2019-07-28 15:57 ` [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL Lukas Auer
` (12 more replies)
0 siblings, 13 replies; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
This series adds support for SPL to RISC-V U-Boot. Images can be booted
via OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
former case, OpenSBI and U-Boot proper are bundled as a FIT image and
made available to U-Boot SPL. Currently, only the QEMU board enables
U-Boot SPL with a dedicated configuration. It uses RAM as SPL boot
device.
On many RISC-V CPUs, the device tree is provided to U-Boot by the
first stage bootloader. This requires changes to U-Boot SPL (patches 1,
2 and 3), which modify the behavior on other boards as well.
To test this series, OpenSBI has to be compiled first. The
fw_dynamic.bin binary must be copied into the U-Boot root directory.
Alternatively, the location of the binary can be specified with the
OPENSBI environment variable. U-Boot can then be build as normal using
the configuration qemu-riscv64_spl_defconfig for 64-bit builds or
qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot
FIT image (u-boot.itb) containing U-Boot proper and OpenSBI.
U-Boot can be run in QEMU with the following command.
qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
-device loader,file=u-boot.itb,addr=0x80200000
Changes in v2:
- Rebase on master and format documentation as reStructuredText
Lukas Auer (11):
fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
Makefile: support building SPL FIT images without device trees
spl: fit: use U-Boot device tree when FIT image has no device tree
riscv: add run mode configuration for SPL
spl: support booting via RISC-V OpenSBI
riscv: add SPL support
riscv: support SPL stack and global data relocation
riscv: add a generic FIT generator script
riscv: set default FIT generator script and build target for SPL
builds
riscv: qemu: add SPL configuration
doc: update QEMU RISC-V documentation
Kconfig | 4 +-
Makefile | 8 +-
arch/Kconfig | 6 ++
arch/riscv/Kconfig | 36 +++++++--
arch/riscv/cpu/ax25/Kconfig | 6 +-
arch/riscv/cpu/cpu.c | 6 +-
arch/riscv/cpu/generic/Kconfig | 5 +-
arch/riscv/cpu/start.S | 62 ++++++++++++++-
arch/riscv/cpu/u-boot-spl.lds | 82 +++++++++++++++++++
arch/riscv/include/asm/encoding.h | 2 +-
arch/riscv/include/asm/spl.h | 31 ++++++++
arch/riscv/lib/Makefile | 8 +-
arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++
arch/riscv/lib/spl.c | 48 ++++++++++++
board/emulation/qemu-riscv/Kconfig | 10 +++
board/emulation/qemu-riscv/MAINTAINERS | 2 +
board/emulation/qemu-riscv/qemu-riscv.c | 17 ++++
common/image.c | 1 +
common/spl/Kconfig | 17 ++++
common/spl/Makefile | 1 +
common/spl/spl.c | 8 +-
common/spl/spl_fit.c | 37 ++++++---
common/spl/spl_opensbi.c | 85 ++++++++++++++++++++
configs/qemu-riscv32_spl_defconfig | 11 +++
configs/qemu-riscv64_spl_defconfig | 12 +++
doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++-
include/configs/qemu-riscv.h | 14 ++++
include/fdtdec.h | 2 +-
include/image.h | 1 +
include/opensbi.h | 40 ++++++++++
include/spl.h | 5 ++
lib/fdtdec.c | 6 +-
32 files changed, 691 insertions(+), 42 deletions(-)
create mode 100644 arch/riscv/cpu/u-boot-spl.lds
create mode 100644 arch/riscv/include/asm/spl.h
create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh
create mode 100644 arch/riscv/lib/spl.c
create mode 100644 common/spl/spl_opensbi.c
create mode 100644 configs/qemu-riscv32_spl_defconfig
create mode 100644 configs/qemu-riscv64_spl_defconfig
create mode 100644 include/opensbi.h
--
2.21.0
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:14 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 02/11] Makefile: support building SPL FIT images without device trees Lukas Auer
` (11 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
The current preprocessor logic prevents CONFIG_OF_PRIOR_STAGE from being
used in U-Boot SPL. Change the logic to also make it available in U-Boot
SPL.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
include/fdtdec.h | 2 +-
lib/fdtdec.c | 6 ++----
2 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/include/fdtdec.h b/include/fdtdec.h
index e6c22dd5cd..635f53083b 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -54,7 +54,7 @@ struct bd_info;
#define SPL_BUILD 0
#endif
-#if CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
+#ifdef CONFIG_OF_PRIOR_STAGE
extern phys_addr_t prior_stage_fdt_address;
#endif
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 3ee786b579..569ffd5987 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1533,16 +1533,14 @@ int fdtdec_setup(void)
puts("Failed to read control FDT\n");
return -1;
}
+# elif defined(CONFIG_OF_PRIOR_STAGE)
+ gd->fdt_blob = (void *)prior_stage_fdt_address;
# endif
# ifndef CONFIG_SPL_BUILD
/* Allow the early environment to override the fdt address */
-# if CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
- gd->fdt_blob = (void *)prior_stage_fdt_address;
-# else
gd->fdt_blob = map_sysmem
(env_get_ulong("fdtcontroladdr", 16,
(unsigned long)map_to_sysmem(gd->fdt_blob)), 0);
-# endif
# endif
# if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 02/11] Makefile: support building SPL FIT images without device trees
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
2019-07-28 15:57 ` [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:17 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 03/11] spl: fit: use U-Boot device tree when FIT image has no device tree Lukas Auer
` (10 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
When building a U-Boot FIT image, the device trees specified by the
board are unconditionally built for inclusion in the FIT image. However,
not all device tree providers, such as CONFIG_OF_PRIOR_STAGE, require a
device tree to be built and bundled with the U-Boot binary. They rely on
other mechanisms to provide the device tree to U-Boot. Compilation on
boards with these device tree providers fails, because they do not
specify a device tree.
Change the makefile rules to conditionally build the device trees if
either CONFIG_OF_SEPARATE or CONFIG_OF_EMBED is selected as device tree
provider.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
Makefile | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index 704579bec1..84678b2c47 100644
--- a/Makefile
+++ b/Makefile
@@ -1263,7 +1263,9 @@ MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
- $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
+ $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
+ $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED),dts/dt.dtb) \
+ ,u-boot.bin) FORCE
$(call if_changed,mkimage)
$(BOARD_SIZE_CHECK)
@@ -1273,7 +1275,9 @@ else
MKIMAGEFLAGS_u-boot.itb = -E
endif
-u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
+u-boot.itb: u-boot-nodtb.bin \
+ $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED),dts/dt.dtb) \
+ $(U_BOOT_ITS) FORCE
$(call if_changed,mkfitimage)
$(BOARD_SIZE_CHECK)
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 03/11] spl: fit: use U-Boot device tree when FIT image has no device tree
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
2019-07-28 15:57 ` [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL Lukas Auer
2019-07-28 15:57 ` [U-Boot] [PATCH v2 02/11] Makefile: support building SPL FIT images without device trees Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:20 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 04/11] riscv: add run mode configuration for SPL Lukas Auer
` (9 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
As part of the SPL FIT boot flow, the device tree is appended to U-Boot
proper. The device tree is used to record information on the loadables
to make them available to the SPL framework and U-Boot proper. Depending
on the U-Boot device tree provider, the FIT image might not include a
device tree. Information on the loadables is missing in this case.
When booting via firmware bundled with the FIT image, U-Boot SPL loads
the firmware binary and U-Boot proper before starting the firmware. The
firmware, in turn, is responsible for starting U-Boot proper.
Information on the memory location of the U-Boot proper loadable must be
available to the SPL framework so that it can be passed to the firmware
binary. To support this use case when no device tree is found in the FIT
image, fall back to the U-Boot device tree in this situation.
At the same time, update the comment to remove the note that the
destination address must be aligned to ARCH_DMA_MINALIGN. Alignment is
only required as an intermediate step when reading external data. This
is automatically handled by spl_fit_append_fdt(). After reading the
external data, it is copied to the specified address, which does not
have to be aligned to ARCH_DMA_MINALIGN.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
common/spl/spl_fit.c | 37 ++++++++++++++++++++++++-------------
1 file changed, 24 insertions(+), 13 deletions(-)
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index 969f7775c1..0bfb91d686 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -11,6 +11,8 @@
#include <linux/libfdt.h>
#include <spl.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#ifndef CONFIG_SYS_BOOTM_LEN
#define CONFIG_SYS_BOOTM_LEN (64 << 20)
#endif
@@ -278,25 +280,34 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image,
void *fit, int images, ulong base_offset)
{
struct spl_image_info image_info;
- int node, ret;
+ int node, ret = 0;
+
+ /*
+ * Use the address following the image as target address for the
+ * device tree.
+ */
+ image_info.load_addr = spl_image->load_addr + spl_image->size;
/* Figure out which device tree the board wants to use */
node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, 0);
if (node < 0) {
debug("%s: cannot find FDT node\n", __func__);
- return node;
- }
-
- /*
- * Read the device tree and place it after the image.
- * Align the destination address to ARCH_DMA_MINALIGN.
- */
- image_info.load_addr = spl_image->load_addr + spl_image->size;
- ret = spl_load_fit_image(info, sector, fit, base_offset, node,
- &image_info);
- if (ret < 0)
- return ret;
+ /*
+ * U-Boot did not find a device tree inside the FIT image. Use
+ * the U-Boot device tree instead.
+ */
+ if (gd->fdt_blob)
+ memcpy((void *)image_info.load_addr, gd->fdt_blob,
+ fdt_totalsize(gd->fdt_blob));
+ else
+ return node;
+ } else {
+ ret = spl_load_fit_image(info, sector, fit, base_offset, node,
+ &image_info);
+ if (ret < 0)
+ return ret;
+ }
/* Make the load-address of the FDT available for the SPL framework */
spl_image->fdt_addr = (void *)image_info.load_addr;
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 04/11] riscv: add run mode configuration for SPL
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (2 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 03/11] spl: fit: use U-Boot device tree when FIT image has no device tree Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:24 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI Lukas Auer
` (8 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
U-Boot SPL can be run in a different privilege mode from U-Boot proper.
Add new configuration entries for SPL to allow the run mode to be
configured independently of U-Boot proper.
Extend all uses of the CONFIG_RISCV_SMODE and CONFIG_RISCV_MMODE
configuration symbols to also cover the SPL equivalents. Ensure that
files compatible with only one privilege mode are not included in builds
targeting an incompatible privilege mode.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
arch/riscv/Kconfig | 33 ++++++++++++++++++++++++++-----
arch/riscv/cpu/ax25/Kconfig | 6 +++---
arch/riscv/cpu/cpu.c | 6 +++---
arch/riscv/cpu/generic/Kconfig | 2 +-
arch/riscv/cpu/start.S | 6 +++---
arch/riscv/include/asm/encoding.h | 2 +-
arch/riscv/lib/Makefile | 7 +++++--
7 files changed, 44 insertions(+), 18 deletions(-)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 8cfc7d0faa..b8d01ba8e1 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -113,6 +113,23 @@ config RISCV_SMODE
endchoice
+choice
+ prompt "SPL Run Mode"
+ default SPL_RISCV_MMODE
+ depends on SPL
+
+config SPL_RISCV_MMODE
+ bool "Machine"
+ help
+ Choose this option to build U-Boot SPL for RISC-V M-Mode.
+
+config SPL_RISCV_SMODE
+ bool "Supervisor"
+ help
+ Choose this option to build U-Boot SPL for RISC-V S-Mode.
+
+endchoice
+
config RISCV_ISA_C
bool "Emit compressed instructions"
default y
@@ -132,34 +149,40 @@ config 64BIT
config SIFIVE_CLINT
bool
- depends on RISCV_MMODE
+ depends on RISCV_MMODE || SPL_RISCV_MMODE
select REGMAP
select SYSCON
+ select SPL_REGMAP if SPL
+ select SPL_SYSCON if SPL
help
The SiFive CLINT block holds memory-mapped control and status registers
associated with software and timer interrupts.
config ANDES_PLIC
bool
- depends on RISCV_MMODE
+ depends on RISCV_MMODE || SPL_RISCV_MMODE
select REGMAP
select SYSCON
+ select SPL_REGMAP if SPL
+ select SPL_SYSCON if SPL
help
The Andes PLIC block holds memory-mapped claim and pending registers
associated with software interrupt.
config ANDES_PLMT
bool
- depends on RISCV_MMODE
+ depends on RISCV_MMODE || SPL_RISCV_MMODE
select REGMAP
select SYSCON
+ select SPL_REGMAP if SPL
+ select SPL_SYSCON if SPL
help
The Andes PLMT block holds memory-mapped mtime register
associated with timer tick.
config RISCV_RDTIME
bool
- default y if RISCV_SMODE
+ default y if RISCV_SMODE || SPL_RISCV_SMODE
help
The provides the riscv_get_time() API that is implemented using the
standard rdtime instruction. This is the case for S-mode U-Boot, and
@@ -189,7 +212,7 @@ config NR_CPUS
config SBI_IPI
bool
- default y if RISCV_SMODE
+ default y if RISCV_SMODE || SPL_RISCV_SMODE
depends on SMP
config XIP
diff --git a/arch/riscv/cpu/ax25/Kconfig b/arch/riscv/cpu/ax25/Kconfig
index 6b4b92e692..f4b59cb71d 100644
--- a/arch/riscv/cpu/ax25/Kconfig
+++ b/arch/riscv/cpu/ax25/Kconfig
@@ -4,8 +4,8 @@ config RISCV_NDS
imply CPU
imply CPU_RISCV
imply RISCV_TIMER
- imply ANDES_PLIC if RISCV_MMODE
- imply ANDES_PLMT if RISCV_MMODE
+ imply ANDES_PLIC if (RISCV_MMODE || SPL_RISCV_MMODE)
+ imply ANDES_PLMT if (RISCV_MMODE || SPL_RISCV_MMODE)
help
Run U-Boot on AndeStar V5 platforms and use some specific features
which are provided by Andes Technology AndeStar V5 families.
@@ -14,7 +14,7 @@ if RISCV_NDS
config RISCV_NDS_CACHE
bool "AndeStar V5 families specific cache support"
- depends on RISCV_MMODE
+ depends on RISCV_MMODE || SPL_RISCV_MMODE
help
Provide Andes Technology AndeStar V5 families specific cache support.
diff --git a/arch/riscv/cpu/cpu.c b/arch/riscv/cpu/cpu.c
index e9a8b437ed..ecf682c290 100644
--- a/arch/riscv/cpu/cpu.c
+++ b/arch/riscv/cpu/cpu.c
@@ -47,13 +47,13 @@ static inline bool supports_extension(char ext)
return false;
#else /* !CONFIG_CPU */
-#ifdef CONFIG_RISCV_MMODE
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
return csr_read(misa) & (1 << (ext - 'a'));
-#else /* !CONFIG_RISCV_MMODE */
+#else /* !CONFIG_IS_ENABLED(RISCV_MMODE) */
#warning "There is no way to determine the available extensions in S-mode."
#warning "Please convert your board to use the RISC-V CPU driver."
return false;
-#endif /* CONFIG_RISCV_MMODE */
+#endif /* CONFIG_IS_ENABLED(RISCV_MMODE) */
#endif /* CONFIG_CPU */
}
diff --git a/arch/riscv/cpu/generic/Kconfig b/arch/riscv/cpu/generic/Kconfig
index 1d6ab5032d..b7552f539f 100644
--- a/arch/riscv/cpu/generic/Kconfig
+++ b/arch/riscv/cpu/generic/Kconfig
@@ -8,5 +8,5 @@ config GENERIC_RISCV
imply CPU
imply CPU_RISCV
imply RISCV_TIMER
- imply SIFIVE_CLINT if RISCV_MMODE
+ imply SIFIVE_CLINT if (RISCV_MMODE || SPL_RISCV_MMODE)
imply CMD_CPU
diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
index 60ac8c621e..08b9812c4d 100644
--- a/arch/riscv/cpu/start.S
+++ b/arch/riscv/cpu/start.S
@@ -40,7 +40,7 @@ secondary_harts_relocation_error:
.section .text
.globl _start
_start:
-#ifdef CONFIG_RISCV_MMODE
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
csrr a0, mhartid
#endif
@@ -63,7 +63,7 @@ _start:
#ifdef CONFIG_SMP
/* set xSIE bit to receive IPIs */
-#ifdef CONFIG_RISCV_MMODE
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
li t0, MIE_MSIE
#else
li t0, SIE_SSIE
@@ -345,7 +345,7 @@ secondary_hart_loop:
#ifdef CONFIG_SMP
csrr t0, MODE_PREFIX(ip)
-#ifdef CONFIG_RISCV_MMODE
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
andi t0, t0, MIE_MSIE
#else
andi t0, t0, SIE_SSIE
diff --git a/arch/riscv/include/asm/encoding.h b/arch/riscv/include/asm/encoding.h
index 772668c74e..f5bf85ac19 100644
--- a/arch/riscv/include/asm/encoding.h
+++ b/arch/riscv/include/asm/encoding.h
@@ -7,7 +7,7 @@
#ifndef RISCV_CSR_ENCODING_H
#define RISCV_CSR_ENCODING_H
-#ifdef CONFIG_RISCV_SMODE
+#if CONFIG_IS_ENABLED(RISCV_SMODE)
#define MODE_PREFIX(__suffix) s##__suffix
#else
#define MODE_PREFIX(__suffix) m##__suffix
diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile
index 6ae6ebbeaf..e4bc5df297 100644
--- a/arch/riscv/lib/Makefile
+++ b/arch/riscv/lib/Makefile
@@ -10,13 +10,16 @@ obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o
obj-$(CONFIG_CMD_GO) += boot.o
obj-y += cache.o
-obj-$(CONFIG_RISCV_RDTIME) += rdtime.o
+ifeq ($(CONFIG_$(SPL_)RISCV_MMODE),y)
obj-$(CONFIG_SIFIVE_CLINT) += sifive_clint.o
obj-$(CONFIG_ANDES_PLIC) += andes_plic.o
obj-$(CONFIG_ANDES_PLMT) += andes_plmt.o
+else
+obj-$(CONFIG_RISCV_RDTIME) += rdtime.o
+obj-$(CONFIG_SBI_IPI) += sbi_ipi.o
+endif
obj-y += interrupts.o
obj-y += reset.o
-obj-$(CONFIG_SBI_IPI) += sbi_ipi.o
obj-y += setjmp.o
obj-$(CONFIG_SMP) += smp.o
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (3 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 04/11] riscv: add run mode configuration for SPL Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:32 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 06/11] riscv: add SPL support Lukas Auer
` (7 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
RISC-V OpenSBI is an open-source implementation of the RISC-V Supervisor
Binary Interface (SBI) specification. It is required by Linux and U-Boot
running in supervisor mode. This patch adds support for booting via the
OpenSBI FW_DYNAMIC firmware.
In this configuration, U-Boot SPL starts in machine mode. After loading
OpenSBI and U-Boot proper, it will start OpenSBI. All necessary
parameters are generated by U-Boot SPL and passed to OpenSBI. U-Boot
proper is started in supervisor mode by OpenSBI. Support for OpenSBI is
enabled with CONFIG_SPL_OPENSBI. An additional configuration entry,
CONFIG_SPL_OPENSBI_LOAD_ADDR, is used to specify the load address of the
OpenSBI firmware binary. It is not used directly in U-Boot and instead
is intended to make the value available to scripts such as FIT
configuration generators.
The header file include/opensbi.h is based on header files from the
OpenSBI project. They are recent, as of commit bae54f764570 ("firmware:
Add fw_dynamic firmware").
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
common/image.c | 1 +
common/spl/Kconfig | 17 ++++++++
common/spl/Makefile | 1 +
common/spl/spl.c | 6 +++
common/spl/spl_opensbi.c | 85 ++++++++++++++++++++++++++++++++++++++++
include/image.h | 1 +
include/opensbi.h | 40 +++++++++++++++++++
include/spl.h | 5 +++
8 files changed, 156 insertions(+)
create mode 100644 common/spl/spl_opensbi.c
create mode 100644 include/opensbi.h
diff --git a/common/image.c b/common/image.c
index 9f9538fac2..7c7353a989 100644
--- a/common/image.c
+++ b/common/image.c
@@ -125,6 +125,7 @@ static const table_entry_t uimage_os[] = {
#if defined(CONFIG_BOOTM_OPENRTOS) || defined(USE_HOSTCC)
{ IH_OS_OPENRTOS, "openrtos", "OpenRTOS", },
#endif
+ { IH_OS_OPENSBI, "opensbi", "RISC-V OpenSBI", },
{ -1, "", "", },
};
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 5d6da5db89..939c8517cd 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -1126,6 +1126,23 @@ config SPL_OPTEE
OP-TEE is an open source Trusted OS which is loaded by SPL.
More detail at: https://github.com/OP-TEE/optee_os
+config SPL_OPENSBI
+ bool "Support RISC-V OpenSBI"
+ depends on RISCV && SPL_RISCV_MMODE && RISCV_SMODE
+ help
+ OpenSBI is an open-source implementation of the RISC-V Supervisor Binary
+ Interface (SBI) specification. U-Boot supports the OpenSBI FW_DYNAMIC
+ firmware. It is loaded and started by U-Boot SPL.
+
+ More details are available at https://github.com/riscv/opensbi and
+ https://github.com/riscv/riscv-sbi-doc
+
+config SPL_OPENSBI_LOAD_ADDR
+ hex "OpenSBI load address"
+ depends on SPL_OPENSBI
+ help
+ Load address of the OpenSBI binary.
+
config TPL
bool
depends on SUPPORT_TPL
diff --git a/common/spl/Makefile b/common/spl/Makefile
index d28de692dd..5ce6f4ae48 100644
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_$(SPL_TPL_)NET_SUPPORT) += spl_net.o
obj-$(CONFIG_$(SPL_TPL_)MMC_SUPPORT) += spl_mmc.o
obj-$(CONFIG_$(SPL_TPL_)ATF) += spl_atf.o
obj-$(CONFIG_$(SPL_TPL_)OPTEE) += spl_optee.o
+obj-$(CONFIG_$(SPL_TPL_)OPENSBI) += spl_opensbi.o
obj-$(CONFIG_$(SPL_TPL_)USB_STORAGE) += spl_usb.o
obj-$(CONFIG_$(SPL_TPL_)FS_FAT) += spl_fat.o
obj-$(CONFIG_$(SPL_TPL_)FS_EXT4) += spl_ext.o
diff --git a/common/spl/spl.c b/common/spl/spl.c
index d5e3f680f4..1ed4741bdc 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -659,6 +659,12 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
(void *)spl_image.entry_point);
break;
#endif
+#if CONFIG_IS_ENABLED(OPENSBI)
+ case IH_OS_OPENSBI:
+ debug("Jumping to U-Boot via RISC-V OpenSBI\n");
+ spl_invoke_opensbi(&spl_image);
+ break;
+#endif
#ifdef CONFIG_SPL_OS_BOOT
case IH_OS_LINUX:
debug("Jumping to Linux\n");
diff --git a/common/spl/spl_opensbi.c b/common/spl/spl_opensbi.c
new file mode 100644
index 0000000000..a6b4480ed2
--- /dev/null
+++ b/common/spl/spl_opensbi.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Fraunhofer AISEC,
+ * Lukas Auer <lukas.auer@aisec.fraunhofer.de>
+ *
+ * Based on common/spl/spl_atf.c
+ */
+#include <common.h>
+#include <errno.h>
+#include <spl.h>
+#include <asm/smp.h>
+#include <opensbi.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct fw_dynamic_info opensbi_info;
+
+static int spl_opensbi_find_uboot_node(void *blob, int *uboot_node)
+{
+ int fit_images_node, node;
+ const char *fit_os;
+
+ fit_images_node = fdt_path_offset(blob, "/fit-images");
+ if (fit_images_node < 0)
+ return -ENODEV;
+
+ fdt_for_each_subnode(node, blob, fit_images_node) {
+ fit_os = fdt_getprop(blob, node, FIT_OS_PROP, NULL);
+ if (!fit_os)
+ continue;
+
+ if (genimg_get_os_id(fit_os) == IH_OS_U_BOOT) {
+ *uboot_node = node;
+ return 0;
+ }
+ }
+
+ return -ENODEV;
+}
+
+void spl_invoke_opensbi(struct spl_image_info *spl_image)
+{
+ int ret, uboot_node;
+ ulong uboot_entry;
+ void (*opensbi_entry)(ulong hartid, ulong dtb, ulong info);
+
+ if (!spl_image->fdt_addr) {
+ pr_err("No device tree specified in SPL image\n");
+ hang();
+ }
+
+ /* Find U-Boot image in /fit-images */
+ ret = spl_opensbi_find_uboot_node(spl_image->fdt_addr, &uboot_node);
+ if (ret) {
+ pr_err("Can't find U-Boot node, %d", ret);
+ hang();
+ }
+
+ /* Get U-Boot entry point */
+ uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
+ "entry-point");
+ if (uboot_entry == FDT_ERROR)
+ uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
+ "load-addr");
+
+ /* Prepare obensbi_info object */
+ opensbi_info.magic = FW_DYNAMIC_INFO_MAGIC_VALUE;
+ opensbi_info.version = FW_DYNAMIC_INFO_VERSION;
+ opensbi_info.next_addr = uboot_entry;
+ opensbi_info.next_mode = FW_DYNAMIC_INFO_NEXT_MODE_S;
+ opensbi_info.options = SBI_SCRATCH_NO_BOOT_PRINTS;
+
+ opensbi_entry = (void (*)(ulong, ulong, ulong))spl_image->entry_point;
+ invalidate_icache_all();
+
+#ifdef CONFIG_SMP
+ ret = smp_call_function((ulong)spl_image->entry_point,
+ (ulong)spl_image->fdt_addr,
+ (ulong)&opensbi_info);
+ if (ret)
+ hang();
+#endif
+ opensbi_entry(gd->arch.boot_hart, (ulong)spl_image->fdt_addr,
+ (ulong)&opensbi_info);
+}
diff --git a/include/image.h b/include/image.h
index 5f82194951..78a2dffe54 100644
--- a/include/image.h
+++ b/include/image.h
@@ -156,6 +156,7 @@ enum {
IH_OS_OPENRTOS, /* OpenRTOS */
IH_OS_ARM_TRUSTED_FIRMWARE, /* ARM Trusted Firmware */
IH_OS_TEE, /* Trusted Execution Environment */
+ IH_OS_OPENSBI, /* RISC-V OpenSBI */
IH_OS_COUNT,
};
diff --git a/include/opensbi.h b/include/opensbi.h
new file mode 100644
index 0000000000..9f1d62e7dd
--- /dev/null
+++ b/include/opensbi.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
+ *
+ * Based on include/sbi/{fw_dynamic.h,sbi_scratch.h} from the OpenSBI project.
+ */
+#ifndef OPENSBI_H
+#define OPENSBI_H
+
+/** Expected value of info magic ('OSBI' ascii string in hex) */
+#define FW_DYNAMIC_INFO_MAGIC_VALUE 0x4942534f
+
+/** Maximum supported info version */
+#define FW_DYNAMIC_INFO_VERSION 0x1
+
+/** Possible next mode values */
+#define FW_DYNAMIC_INFO_NEXT_MODE_U 0x0
+#define FW_DYNAMIC_INFO_NEXT_MODE_S 0x1
+#define FW_DYNAMIC_INFO_NEXT_MODE_M 0x3
+
+enum sbi_scratch_options {
+ /** Disable prints during boot */
+ SBI_SCRATCH_NO_BOOT_PRINTS = (1 << 0),
+};
+
+/** Representation dynamic info passed by previous booting stage */
+struct fw_dynamic_info {
+ /** Info magic */
+ unsigned long magic;
+ /** Info version */
+ unsigned long version;
+ /** Next booting stage address */
+ unsigned long next_addr;
+ /** Next booting stage mode */
+ unsigned long next_mode;
+ /** Options for OpenSBI library */
+ unsigned long options;
+} __packed;
+
+#endif
diff --git a/include/spl.h b/include/spl.h
index a90f971a23..e4640f3830 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -374,6 +374,11 @@ void spl_invoke_atf(struct spl_image_info *spl_image);
*/
void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
+/**
+ * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
+ */
+void spl_invoke_opensbi(struct spl_image_info *spl_image);
+
/**
* board_return_to_bootrom - allow for boards to continue with the boot ROM
*
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 06/11] riscv: add SPL support
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (4 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:34 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 07/11] riscv: support SPL stack and global data relocation Lukas Auer
` (6 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
U-Boot SPL on the generic RISC-V CPU supports two boot flows, directly
jumping to the image and via OpenSBI firmware. In the first case, both
U-Boot SPL and proper must be compiled to run in the same privilege
mode. Using OpenSBI firmware, U-Boot SPL must be compiled for machine
mode and U-Boot proper for supervisor mode.
To be able to use SPL, boards have to provide a supported SPL boot
device.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
arch/Kconfig | 6 +++
arch/riscv/Kconfig | 3 ++
arch/riscv/cpu/generic/Kconfig | 3 ++
arch/riscv/cpu/start.S | 23 +++++++++-
arch/riscv/cpu/u-boot-spl.lds | 82 ++++++++++++++++++++++++++++++++++
arch/riscv/include/asm/spl.h | 31 +++++++++++++
arch/riscv/lib/Makefile | 1 +
arch/riscv/lib/spl.c | 48 ++++++++++++++++++++
8 files changed, 196 insertions(+), 1 deletion(-)
create mode 100644 arch/riscv/cpu/u-boot-spl.lds
create mode 100644 arch/riscv/include/asm/spl.h
create mode 100644 arch/riscv/lib/spl.c
diff --git a/arch/Kconfig b/arch/Kconfig
index 949eb28dfa..8350d9b1ea 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -76,6 +76,12 @@ config RISCV
imply MTD
imply TIMER
imply CMD_DM
+ imply SPL_DM
+ imply SPL_OF_CONTROL
+ imply SPL_LIBCOMMON_SUPPORT
+ imply SPL_LIBGENERIC_SUPPORT
+ imply SPL_SERIAL_SUPPORT
+ imply SPL_TIMER
config SANDBOX
bool "Sandbox"
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index b8d01ba8e1..01975d7c60 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -226,4 +226,7 @@ config STACK_SIZE_SHIFT
int
default 13
+config SPL_LDSCRIPT
+ default "arch/riscv/cpu/u-boot-spl.lds"
+
endmenu
diff --git a/arch/riscv/cpu/generic/Kconfig b/arch/riscv/cpu/generic/Kconfig
index b7552f539f..b2cb155d6d 100644
--- a/arch/riscv/cpu/generic/Kconfig
+++ b/arch/riscv/cpu/generic/Kconfig
@@ -10,3 +10,6 @@ config GENERIC_RISCV
imply RISCV_TIMER
imply SIFIVE_CLINT if (RISCV_MMODE || SPL_RISCV_MMODE)
imply CMD_CPU
+ imply SPL_CPU_SUPPORT
+ imply SPL_OPENSBI
+ imply SPL_LOAD_FIT
diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
index 08b9812c4d..e053197645 100644
--- a/arch/riscv/cpu/start.S
+++ b/arch/riscv/cpu/start.S
@@ -76,7 +76,11 @@ _start:
*/
call_board_init_f:
li t0, -16
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK)
+ li t1, CONFIG_SPL_STACK
+#else
li t1, CONFIG_SYS_INIT_SP_ADDR
+#endif
and sp, t1, t0 /* force 16 byte alignment */
call_board_init_f_0:
@@ -160,7 +164,24 @@ wait_for_gd_init:
mv a0, zero /* a0 <-- boot_flags = 0 */
la t5, board_init_f
- jr t5 /* jump to board_init_f() */
+ jalr t5 /* jump to board_init_f() */
+
+#ifdef CONFIG_SPL_BUILD
+spl_clear_bss:
+ la t0, __bss_start
+ la t1, __bss_end
+ beq t0, t1, spl_call_board_init_r
+
+spl_clear_bss_loop:
+ SREG zero, 0(t0)
+ addi t0, t0, REGBYTES
+ bne t0, t1, spl_clear_bss_loop
+
+spl_call_board_init_r:
+ mv a0, zero
+ mv a1, zero
+ jal board_init_r
+#endif
/*
* void relocate_code (addr_sp, gd, addr_moni)
diff --git a/arch/riscv/cpu/u-boot-spl.lds b/arch/riscv/cpu/u-boot-spl.lds
new file mode 100644
index 0000000000..32255d58de
--- /dev/null
+++ b/arch/riscv/cpu/u-boot-spl.lds
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Based on arch/riscv/cpu/u-boot.lds, which is
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <rick@andestech.com>
+ *
+ * and arch/mips/cpu/u-boot-spl.lds.
+ */
+MEMORY { .spl_mem : ORIGIN = IMAGE_TEXT_BASE, LENGTH = IMAGE_MAX_SIZE }
+MEMORY { .bss_mem : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \
+ LENGTH = CONFIG_SPL_BSS_MAX_SIZE }
+
+OUTPUT_ARCH("riscv")
+ENTRY(_start)
+
+SECTIONS
+{
+ . = ALIGN(4);
+ .text : {
+ arch/riscv/cpu/start.o (.text)
+ *(.text*)
+ } > .spl_mem
+
+ . = ALIGN(4);
+ .rodata : {
+ *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+ } > .spl_mem
+
+ . = ALIGN(4);
+ .data : {
+ *(.data*)
+ } > .spl_mem
+ . = ALIGN(4);
+
+ .got : {
+ __got_start = .;
+ *(.got.plt) *(.got)
+ __got_end = .;
+ } > .spl_mem
+
+ . = ALIGN(4);
+
+ .u_boot_list : {
+ KEEP(*(SORT(.u_boot_list*)));
+ } > .spl_mem
+
+ . = ALIGN(4);
+
+ .binman_sym_table : {
+ __binman_sym_start = .;
+ KEEP(*(SORT(.binman_sym*)));
+ __binman_sym_end = .;
+ } > .spl_mem
+
+ . = ALIGN(4);
+
+ /DISCARD/ : { *(.rela.plt*) }
+ .rela.dyn : {
+ __rel_dyn_start = .;
+ *(.rela*)
+ __rel_dyn_end = .;
+ } > .spl_mem
+
+ . = ALIGN(4);
+
+ .dynsym : {
+ __dyn_sym_start = .;
+ *(.dynsym)
+ __dyn_sym_end = .;
+ } > .spl_mem
+
+ . = ALIGN(4);
+
+ _end = .;
+
+ .bss : {
+ __bss_start = .;
+ *(.bss*)
+ . = ALIGN(4);
+ __bss_end = .;
+ } > .bss_mem
+}
diff --git a/arch/riscv/include/asm/spl.h b/arch/riscv/include/asm/spl.h
new file mode 100644
index 0000000000..45c03fb9b6
--- /dev/null
+++ b/arch/riscv/include/asm/spl.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Based on arch/mips/include/asm/spl.h.
+ *
+ * (C) Copyright 2012
+ * Texas Instruments, <www.ti.com>
+ */
+#ifndef _ASM_RISCV_SPL_H_
+#define _ASM_RISCV_SPL_H_
+
+enum {
+ BOOT_DEVICE_RAM,
+ BOOT_DEVICE_MMC1,
+ BOOT_DEVICE_MMC2,
+ BOOT_DEVICE_MMC2_2,
+ BOOT_DEVICE_NAND,
+ BOOT_DEVICE_ONENAND,
+ BOOT_DEVICE_NOR,
+ BOOT_DEVICE_UART,
+ BOOT_DEVICE_SPI,
+ BOOT_DEVICE_USB,
+ BOOT_DEVICE_SATA,
+ BOOT_DEVICE_I2C,
+ BOOT_DEVICE_BOARD,
+ BOOT_DEVICE_DFU,
+ BOOT_DEVICE_XIP,
+ BOOT_DEVICE_BOOTROM,
+ BOOT_DEVICE_NONE
+};
+
+#endif
diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile
index e4bc5df297..c9179a5ff8 100644
--- a/arch/riscv/lib/Makefile
+++ b/arch/riscv/lib/Makefile
@@ -22,6 +22,7 @@ obj-y += interrupts.o
obj-y += reset.o
obj-y += setjmp.o
obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_SPL_BUILD) += spl.o
# For building EFI apps
CFLAGS_$(EFI_CRT0) := $(CFLAGS_EFI)
diff --git a/arch/riscv/lib/spl.c b/arch/riscv/lib/spl.c
new file mode 100644
index 0000000000..bea8695987
--- /dev/null
+++ b/arch/riscv/lib/spl.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Fraunhofer AISEC,
+ * Lukas Auer <lukas.auer@aisec.fraunhofer.de>
+ */
+#include <common.h>
+#include <spl.h>
+#include <asm/smp.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+__weak void board_init_f(ulong dummy)
+{
+ int ret;
+
+ ret = spl_early_init();
+ if (ret)
+ panic("spl_early_init() failed: %d\n", ret);
+
+ arch_cpu_init_dm();
+
+ preloader_console_init();
+}
+
+void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
+{
+ typedef void __noreturn (*image_entry_riscv_t)(ulong hart, void *dtb);
+ void *fdt_blob;
+ int ret;
+
+#if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
+ fdt_blob = spl_image->fdt_addr;
+#else
+ fdt_blob = (void *)gd->fdt_blob;
+#endif
+
+ image_entry_riscv_t image_entry =
+ (image_entry_riscv_t)spl_image->entry_point;
+ invalidate_icache_all();
+
+ debug("image entry point: 0x%lX\n", spl_image->entry_point);
+#ifdef CONFIG_SMP
+ ret = smp_call_function(spl_image->entry_point, (ulong)fdt_blob, 0);
+ if (ret)
+ hang();
+#endif
+ image_entry(gd->arch.boot_hart, fdt_blob);
+}
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 07/11] riscv: support SPL stack and global data relocation
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (5 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 06/11] riscv: add SPL support Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:36 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 08/11] riscv: add a generic FIT generator script Lukas Auer
` (5 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
To support relocation of the stack and global data on RISC-V, the
secondary harts must be notified of the change using IPIs. We can reuse
the hart relocation code for this purpose. It uses global data to store
the new stack pointer and global data pointer for the secondary harts.
This means that we cannot update the global data pointer of the main
hart in spl_relocate_stack_gd(), because the secondary harts have not
yet been relocated at this point. It is updated after the secondary
harts have been notified.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
arch/riscv/cpu/start.S | 35 ++++++++++++++++++++++++++++++++++-
common/spl/spl.c | 2 +-
2 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
index e053197645..e8c65c887a 100644
--- a/arch/riscv/cpu/start.S
+++ b/arch/riscv/cpu/start.S
@@ -170,13 +170,46 @@ wait_for_gd_init:
spl_clear_bss:
la t0, __bss_start
la t1, __bss_end
- beq t0, t1, spl_call_board_init_r
+ beq t0, t1, spl_stack_gd_setup
spl_clear_bss_loop:
SREG zero, 0(t0)
addi t0, t0, REGBYTES
bne t0, t1, spl_clear_bss_loop
+spl_stack_gd_setup:
+ jal spl_relocate_stack_gd
+
+ /* skip setup if we did not relocate */
+ beqz a0, spl_call_board_init_r
+ mv s0, a0
+
+ /* setup stack on main hart */
+#ifdef CONFIG_SMP
+ /* tp: hart id */
+ slli t0, tp, CONFIG_STACK_SIZE_SHIFT
+ sub sp, s0, t0
+#else
+ mv sp, s0
+#endif
+
+ /* set new stack and global data pointer on secondary harts */
+spl_secondary_hart_stack_gd_setup:
+ la a0, secondary_hart_relocate
+ mv a1, s0
+ mv a2, s0
+ jal smp_call_function
+
+ /* hang if relocation of secondary harts has failed */
+ beqz a0, 1f
+ mv a1, a0
+ la a0, secondary_harts_relocation_error
+ jal printf
+ jal hang
+
+ /* set new global data pointer on main hart */
+1: mv gp, s0
+
spl_call_board_init_r:
mv a0, zero
mv a1, zero
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 1ed4741bdc..834f39908b 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -756,7 +756,7 @@ ulong spl_relocate_stack_gd(void)
#if CONFIG_IS_ENABLED(DM)
dm_fixup_for_gd_move(new_gd);
#endif
-#if !defined(CONFIG_ARM)
+#if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
gd = new_gd;
#endif
return ptr;
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 08/11] riscv: add a generic FIT generator script
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (6 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 07/11] riscv: support SPL stack and global data relocation Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:39 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 09/11] riscv: set default FIT generator script and build target for SPL builds Lukas Auer
` (4 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
Add a generic FIT generator script for RISC-V to generate images
containing U-Boot, OpenSBI FW_DYNAMIC firmware, and optionally one or
more device trees. The location of the OpenSBI firmware binary can be
specified with the OPENSBI environment variable. By default, it is
assumed to be "fw_dynamic.bin" and located in the U-Boot top-level.
Device trees are passed as arguments to the generator script. A separate
configuration entry is created for each device tree.
The load addresses of U-Boot and OpenSBI are parsed from the U-Boot
configuration. They can be overwritten with the UBOOT_LOAD_ADDR and
OPENSBI_LOAD_ADDR environment variables.
The script is based on the i.MX (arch/arm/mach-imx/mkimage_fit_atf.sh)
and Allwinner sunxi (board/sunxi/mksunxi_fit_atf.sh) FIT generator
scripts.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++++
1 file changed, 100 insertions(+)
create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh
diff --git a/arch/riscv/lib/mkimage_fit_opensbi.sh b/arch/riscv/lib/mkimage_fit_opensbi.sh
new file mode 100755
index 0000000000..d6f95e5bfd
--- /dev/null
+++ b/arch/riscv/lib/mkimage_fit_opensbi.sh
@@ -0,0 +1,100 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# script to generate FIT image source for RISC-V boards with OpenSBI
+# and, optionally, multiple device trees (given on the command line).
+#
+# usage: $0 [<dt_name> [<dt_name] ...]
+
+[ -z "$OPENSBI" ] && OPENSBI="fw_dynamic.bin"
+
+if [ -z "$UBOOT_LOAD_ADDR" ]; then
+ UBOOT_LOAD_ADDR="$(grep "^CONFIG_SYS_TEXT_BASE=" .config | awk 'BEGIN{FS="="} {print $2}')"
+fi
+
+if [ -z "$OPENSBI_LOAD_ADDR" ]; then
+ OPENSBI_LOAD_ADDR="$(grep "^CONFIG_SPL_OPENSBI_LOAD_ADDR=" .config | awk 'BEGIN{FS="="} {print $2}')"
+fi
+
+if [ ! -f $OPENSBI ]; then
+ echo "WARNING: OpenSBI binary \"$OPENSBI\" not found, resulting binary is not functional." >&2
+ OPENSBI=/dev/null
+fi
+
+cat << __HEADER_EOF
+/dts-v1/;
+
+/ {
+ description = "Configuration to load OpenSBI before U-Boot";
+
+ images {
+ uboot {
+ description = "U-Boot";
+ data = /incbin/("u-boot-nodtb.bin");
+ type = "standalone";
+ os = "U-Boot";
+ arch = "riscv";
+ compression = "none";
+ load = <$UBOOT_LOAD_ADDR>;
+ };
+ opensbi {
+ description = "RISC-V OpenSBI";
+ data = /incbin/("$OPENSBI");
+ type = "firmware";
+ os = "opensbi";
+ arch = "riscv";
+ compression = "none";
+ load = <$OPENSBI_LOAD_ADDR>;
+ entry = <$OPENSBI_LOAD_ADDR>;
+ };
+__HEADER_EOF
+
+cnt=1
+for dtname in $*
+do
+ cat << __FDT_IMAGE_EOF
+ fdt_$cnt {
+ description = "$(basename $dtname .dtb)";
+ data = /incbin/("$dtname");
+ type = "flat_dt";
+ compression = "none";
+ };
+__FDT_IMAGE_EOF
+cnt=$((cnt+1))
+done
+
+cat << __CONF_HEADER_EOF
+ };
+ configurations {
+ default = "config_1";
+
+__CONF_HEADER_EOF
+
+if [ $# -eq 0 ]; then
+cat << __CONF_SECTION_EOF
+ config_1 {
+ description = "U-Boot FIT";
+ firmware = "opensbi";
+ loadables = "uboot";
+ };
+__CONF_SECTION_EOF
+else
+cnt=1
+for dtname in $*
+do
+cat << __CONF_SECTION_EOF
+ config_$cnt {
+ description = "$(basename $dtname .dtb)";
+ firmware = "opensbi";
+ loadables = "uboot";
+ fdt = "fdt_$cnt";
+ };
+__CONF_SECTION_EOF
+cnt=$((cnt+1))
+done
+fi
+
+cat << __ITS_EOF
+ };
+};
+__ITS_EOF
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 09/11] riscv: set default FIT generator script and build target for SPL builds
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (7 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 08/11] riscv: add a generic FIT generator script Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:40 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 10/11] riscv: qemu: add SPL configuration Lukas Auer
` (3 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
Now that we have a generic FIT generator script for RISC-V, set it as
the default. To also build the FIT image by default, set the default
build target to "u-boot.itb" if CONFIG_SPL_LOAD_FIT is enabled.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
Kconfig | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Kconfig b/Kconfig
index d2eb744e70..a78dd59a79 100644
--- a/Kconfig
+++ b/Kconfig
@@ -250,7 +250,8 @@ config BUILD_TARGET
default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
default "u-boot-elf.srec" if RCAR_GEN3
- default "u-boot.itb" if SPL_LOAD_FIT && (ROCKCHIP_RK3399 || ARCH_SUNXI)
+ default "u-boot.itb" if SPL_LOAD_FIT && (ROCKCHIP_RK3399 || \
+ ARCH_SUNXI || RISCV)
default "u-boot.kwb" if KIRKWOOD
default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
help
@@ -463,6 +464,7 @@ config SPL_FIT_GENERATOR
depends on SPL_FIT
default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI
default "arch/arm/mach-rockchip/make_fit_atf.py" if SPL_LOAD_FIT && ARCH_ROCKCHIP
+ default "arch/riscv/lib/mkimage_fit_opensbi.sh" if SPL_LOAD_FIT && RISCV
help
Specifies a (platform specific) script file to generate the FIT
source file used to build the U-Boot FIT image file. This gets
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 10/11] riscv: qemu: add SPL configuration
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (8 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 09/11] riscv: set default FIT generator script and build target for SPL builds Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:41 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 11/11] doc: update QEMU RISC-V documentation Lukas Auer
` (2 subsequent siblings)
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
Add two new configurations (qemu-riscv{32,64}_spl_defconfig) with SPL
enabled for RISC-V QEMU. QEMU does not require SPL to run U-Boot. The
configurations are meant to help the development of SPL on RISC-V.
The configurations enable RAM as the only SPL boot device. Images must
be loaded at address 0x80200000. In the default boot flow, U-Boot SPL
starts in machine mode, loads the OpenSBI FW_DYNAMIC firmware and U-Boot
proper from the supplied FIT image, and starts OpenSBI. U-Boot proper is
then started in supervisor mode by OpenSBI.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2: None
board/emulation/qemu-riscv/Kconfig | 10 ++++++++++
board/emulation/qemu-riscv/MAINTAINERS | 2 ++
board/emulation/qemu-riscv/qemu-riscv.c | 17 +++++++++++++++++
configs/qemu-riscv32_spl_defconfig | 11 +++++++++++
configs/qemu-riscv64_spl_defconfig | 12 ++++++++++++
include/configs/qemu-riscv.h | 14 ++++++++++++++
6 files changed, 66 insertions(+)
create mode 100644 configs/qemu-riscv32_spl_defconfig
create mode 100644 configs/qemu-riscv64_spl_defconfig
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index 6cc7c31dc6..1928d6dda0 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -13,13 +13,21 @@ config SYS_CONFIG_NAME
default "qemu-riscv"
config SYS_TEXT_BASE
+ default 0x81200000 if SPL
default 0x80000000 if !RISCV_SMODE
default 0x80200000 if RISCV_SMODE && ARCH_RV64I
default 0x80400000 if RISCV_SMODE && ARCH_RV32I
+config SPL_TEXT_BASE
+ default 0x80000000
+
+config SPL_OPENSBI_LOAD_ADDR
+ default 0x81000000
+
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
select GENERIC_RISCV
+ select SUPPORT_SPL
imply SYS_NS16550
imply VIRTIO_MMIO
imply VIRTIO_NET
@@ -43,5 +51,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
imply CMD_PCI
imply E1000
imply NVME
+ imply SPL_RAM_SUPPORT
+ imply SPL_RAM_DEVICE
endif
diff --git a/board/emulation/qemu-riscv/MAINTAINERS b/board/emulation/qemu-riscv/MAINTAINERS
index c701c83d77..78969ed6bd 100644
--- a/board/emulation/qemu-riscv/MAINTAINERS
+++ b/board/emulation/qemu-riscv/MAINTAINERS
@@ -5,5 +5,7 @@ F: board/emulation/qemu-riscv/
F: include/configs/qemu-riscv.h
F: configs/qemu-riscv32_defconfig
F: configs/qemu-riscv32_smode_defconfig
+F: configs/qemu-riscv32_spl_defconfig
F: configs/qemu-riscv64_defconfig
F: configs/qemu-riscv64_smode_defconfig
+F: configs/qemu-riscv64_spl_defconfig
diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c
index d6167aaef1..e04bd3001c 100644
--- a/board/emulation/qemu-riscv/qemu-riscv.c
+++ b/board/emulation/qemu-riscv/qemu-riscv.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
+#include <spl.h>
#include <virtio_types.h>
#include <virtio.h>
@@ -87,3 +88,19 @@ int ft_board_setup(void *blob, bd_t *bd)
return 0;
}
+
+#ifdef CONFIG_SPL
+u32 spl_boot_device(void)
+{
+ /* RISC-V QEMU only supports RAM as SPL boot device */
+ return BOOT_DEVICE_RAM;
+}
+#endif
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+ /* boot using first FIT config */
+ return 0;
+}
+#endif
diff --git a/configs/qemu-riscv32_spl_defconfig b/configs/qemu-riscv32_spl_defconfig
new file mode 100644
index 0000000000..78e755b36a
--- /dev/null
+++ b/configs/qemu-riscv32_spl_defconfig
@@ -0,0 +1,11 @@
+CONFIG_RISCV=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_SPL=y
+CONFIG_TARGET_QEMU_VIRT=y
+CONFIG_RISCV_SMODE=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_DISPLAY_CPUINFO=y
+CONFIG_DISPLAY_BOARDINFO=y
+# CONFIG_CMD_MII is not set
+CONFIG_OF_PRIOR_STAGE=y
diff --git a/configs/qemu-riscv64_spl_defconfig b/configs/qemu-riscv64_spl_defconfig
new file mode 100644
index 0000000000..a3f5e29d58
--- /dev/null
+++ b/configs/qemu-riscv64_spl_defconfig
@@ -0,0 +1,12 @@
+CONFIG_RISCV=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_SPL=y
+CONFIG_TARGET_QEMU_VIRT=y
+CONFIG_ARCH_RV64I=y
+CONFIG_RISCV_SMODE=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_DISPLAY_CPUINFO=y
+CONFIG_DISPLAY_BOARDINFO=y
+# CONFIG_CMD_MII is not set
+CONFIG_OF_PRIOR_STAGE=y
diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h
index df22f780b0..69aa82d36a 100644
--- a/include/configs/qemu-riscv.h
+++ b/include/configs/qemu-riscv.h
@@ -8,6 +8,18 @@
#include <linux/sizes.h>
+#ifdef CONFIG_SPL
+
+#define CONFIG_SPL_MAX_SIZE 0x00100000
+#define CONFIG_SPL_BSS_START_ADDR 0x84000000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000
+#define CONFIG_SYS_SPL_MALLOC_START 0x84100000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000
+
+#define CONFIG_SPL_LOAD_FIT_ADDRESS 0x80200000
+
+#endif
+
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
@@ -22,6 +34,7 @@
/* Environment options */
#define CONFIG_ENV_SIZE SZ_128K
+#ifndef CONFIG_SPL_BUILD
#define BOOT_TARGET_DEVICES(func) \
func(QEMU, qemu, na) \
func(VIRTIO, virtio, 0) \
@@ -51,5 +64,6 @@
#define CONFIG_PREBOOT \
"setenv fdt_addr ${fdtcontroladdr};" \
"fdt addr ${fdtcontroladdr};"
+#endif
#endif /* __CONFIG_H */
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 11/11] doc: update QEMU RISC-V documentation
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (9 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 10/11] riscv: qemu: add SPL configuration Lukas Auer
@ 2019-07-28 15:57 ` Lukas Auer
2019-07-29 8:42 ` Anup Patel
2019-07-29 8:44 ` [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Anup Patel
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA40F3AC4@ATCPCS16.andestech.com>
12 siblings, 1 reply; 33+ messages in thread
From: Lukas Auer @ 2019-07-28 15:57 UTC (permalink / raw)
To: u-boot
The available defconfigs for RISC-V QEMU have changed. We now have
configurations to compile U-Boot to run in supervisor mode and for
U-Boot SPL. Update the QEMU RISC-V documentation to reflect these
changes.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v2:
- Rebase on master and format documentation as reStructuredText
doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++++++++++++++++++-
1 file changed, 59 insertions(+), 1 deletion(-)
diff --git a/doc/board/emulation/qemu-riscv.rst b/doc/board/emulation/qemu-riscv.rst
index 214833496b..9472a6f812 100644
--- a/doc/board/emulation/qemu-riscv.rst
+++ b/doc/board/emulation/qemu-riscv.rst
@@ -6,7 +6,8 @@ QEMU RISC-V
QEMU for RISC-V supports a special 'virt' machine designed for emulation and
virtualization purposes. This document describes how to run U-Boot under it.
-Both 32-bit 64-bit targets are supported.
+Both 32-bit and 64-bit targets are supported, running in either machine or
+supervisor mode.
The QEMU virt machine models a generic RISC-V virtual machine with support for
the VirtIO standard networking and block storage devices. It has CLINT, PLIC,
@@ -28,6 +29,11 @@ Set the CROSS_COMPILE environment variable as usual, and run:
make qemu-riscv64_defconfig
make
+This will compile U-Boot for machine mode. To build supervisor mode binaries,
+use the configurations qemu-riscv32_smode_defconfig and
+qemu-riscv64_smode_defconfig instead. Note that U-Boot running in supervisor
+mode requires a supervisor binary interface (SBI), such as RISC-V OpenSBI.
+
Running U-Boot
--------------
The minimal QEMU command line to get U-Boot up and running is:
@@ -46,4 +52,56 @@ parameter. For example, '-m 2G' creates 2GiB memory for the target,
and the memory node in the embedded DTB created by QEMU reflects
the new setting.
+For instructions on how to run U-Boot in supervisor mode on QEMU
+with OpenSBI, see the documentation available with OpenSBI:
+https://github.com/riscv/opensbi/blob/master/docs/platform/qemu_virt.md
+
These have been tested in QEMU 3.0.0.
+
+Running U-Boot SPL
+------------------
+In the default SPL configuration, U-Boot SPL starts in machine mode. U-Boot
+proper and OpenSBI (FW_DYNAMIC firmware) are bundled as FIT image and made
+available to U-Boot SPL. Both are then loaded by U-Boot SPL and the location
+of U-Boot proper is passed to OpenSBI. After initialization, U-Boot proper is
+started in supervisor mode by OpenSBI.
+
+OpenSBI must be compiled before compiling U-Boot. Clone the OpenSBI repository
+and run the following command.
+
+.. code-block:: console
+
+ git clone https://github.com/riscv/opensbi.git
+ cd opensbi
+ make PLATFORM=qemu/virt
+
+See the OpenSBI documentation for full details:
+https://github.com/riscv/opensbi/blob/master/docs/platform/qemu_virt.md
+
+To make the FW_DYNAMIC binary (build/platform/qemu/virt/firmware/fw_dynamic.bin)
+available to U-Boot, either copy it into the U-Boot root directory or specify
+its location with the OPENSBI environment variable. Afterwards, compile U-Boot
+with the following commands.
+
+- For 32-bit RISC-V::
+
+ make qemu-riscv32_spl_defconfig
+ make
+
+- For 64-bit RISC-V::
+
+ make qemu-riscv64_spl_defconfig
+ make
+
+The minimal QEMU commands to run U-Boot SPL in both 32-bit and 64-bit
+configurations are:
+
+- For 32-bit RISC-V::
+
+ qemu-system-riscv32 -nographic -machine virt -kernel spl/u-boot-spl \
+ -device loader,file=u-boot.itb,addr=0x80200000
+
+- For 64-bit RISC-V::
+
+ qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
+ -device loader,file=u-boot.itb,addr=0x80200000
--
2.21.0
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
2019-07-28 15:57 ` [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL Lukas Auer
@ 2019-07-29 8:14 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:14 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:27 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> The current preprocessor logic prevents CONFIG_OF_PRIOR_STAGE from being
> used in U-Boot SPL. Change the logic to also make it available in U-Boot
> SPL.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> include/fdtdec.h | 2 +-
> lib/fdtdec.c | 6 ++----
> 2 files changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/include/fdtdec.h b/include/fdtdec.h
> index e6c22dd5cd..635f53083b 100644
> --- a/include/fdtdec.h
> +++ b/include/fdtdec.h
> @@ -54,7 +54,7 @@ struct bd_info;
> #define SPL_BUILD 0
> #endif
>
> -#if CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
> +#ifdef CONFIG_OF_PRIOR_STAGE
> extern phys_addr_t prior_stage_fdt_address;
> #endif
>
> diff --git a/lib/fdtdec.c b/lib/fdtdec.c
> index 3ee786b579..569ffd5987 100644
> --- a/lib/fdtdec.c
> +++ b/lib/fdtdec.c
> @@ -1533,16 +1533,14 @@ int fdtdec_setup(void)
> puts("Failed to read control FDT\n");
> return -1;
> }
> +# elif defined(CONFIG_OF_PRIOR_STAGE)
> + gd->fdt_blob = (void *)prior_stage_fdt_address;
> # endif
> # ifndef CONFIG_SPL_BUILD
> /* Allow the early environment to override the fdt address */
> -# if CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
> - gd->fdt_blob = (void *)prior_stage_fdt_address;
> -# else
> gd->fdt_blob = map_sysmem
> (env_get_ulong("fdtcontroladdr", 16,
> (unsigned long)map_to_sysmem(gd->fdt_blob)), 0);
> -# endif
> # endif
>
> # if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 02/11] Makefile: support building SPL FIT images without device trees
2019-07-28 15:57 ` [U-Boot] [PATCH v2 02/11] Makefile: support building SPL FIT images without device trees Lukas Auer
@ 2019-07-29 8:17 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:17 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:29 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> When building a U-Boot FIT image, the device trees specified by the
> board are unconditionally built for inclusion in the FIT image. However,
> not all device tree providers, such as CONFIG_OF_PRIOR_STAGE, require a
> device tree to be built and bundled with the U-Boot binary. They rely on
> other mechanisms to provide the device tree to U-Boot. Compilation on
> boards with these device tree providers fails, because they do not
> specify a device tree.
>
> Change the makefile rules to conditionally build the device trees if
> either CONFIG_OF_SEPARATE or CONFIG_OF_EMBED is selected as device tree
> provider.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> Makefile | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 704579bec1..84678b2c47 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1263,7 +1263,9 @@ MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
> -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
>
> u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
> - $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
> + $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
> + $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED),dts/dt.dtb) \
> + ,u-boot.bin) FORCE
> $(call if_changed,mkimage)
> $(BOARD_SIZE_CHECK)
>
> @@ -1273,7 +1275,9 @@ else
> MKIMAGEFLAGS_u-boot.itb = -E
> endif
>
> -u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
> +u-boot.itb: u-boot-nodtb.bin \
> + $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED),dts/dt.dtb) \
> + $(U_BOOT_ITS) FORCE
> $(call if_changed,mkfitimage)
> $(BOARD_SIZE_CHECK)
>
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 03/11] spl: fit: use U-Boot device tree when FIT image has no device tree
2019-07-28 15:57 ` [U-Boot] [PATCH v2 03/11] spl: fit: use U-Boot device tree when FIT image has no device tree Lukas Auer
@ 2019-07-29 8:20 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:20 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:28 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> As part of the SPL FIT boot flow, the device tree is appended to U-Boot
> proper. The device tree is used to record information on the loadables
> to make them available to the SPL framework and U-Boot proper. Depending
> on the U-Boot device tree provider, the FIT image might not include a
> device tree. Information on the loadables is missing in this case.
>
> When booting via firmware bundled with the FIT image, U-Boot SPL loads
> the firmware binary and U-Boot proper before starting the firmware. The
> firmware, in turn, is responsible for starting U-Boot proper.
> Information on the memory location of the U-Boot proper loadable must be
> available to the SPL framework so that it can be passed to the firmware
> binary. To support this use case when no device tree is found in the FIT
> image, fall back to the U-Boot device tree in this situation.
>
> At the same time, update the comment to remove the note that the
> destination address must be aligned to ARCH_DMA_MINALIGN. Alignment is
> only required as an intermediate step when reading external data. This
> is automatically handled by spl_fit_append_fdt(). After reading the
> external data, it is copied to the specified address, which does not
> have to be aligned to ARCH_DMA_MINALIGN.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> common/spl/spl_fit.c | 37 ++++++++++++++++++++++++-------------
> 1 file changed, 24 insertions(+), 13 deletions(-)
>
> diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
> index 969f7775c1..0bfb91d686 100644
> --- a/common/spl/spl_fit.c
> +++ b/common/spl/spl_fit.c
> @@ -11,6 +11,8 @@
> #include <linux/libfdt.h>
> #include <spl.h>
>
> +DECLARE_GLOBAL_DATA_PTR;
> +
> #ifndef CONFIG_SYS_BOOTM_LEN
> #define CONFIG_SYS_BOOTM_LEN (64 << 20)
> #endif
> @@ -278,25 +280,34 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image,
> void *fit, int images, ulong base_offset)
> {
> struct spl_image_info image_info;
> - int node, ret;
> + int node, ret = 0;
> +
> + /*
> + * Use the address following the image as target address for the
> + * device tree.
> + */
> + image_info.load_addr = spl_image->load_addr + spl_image->size;
>
> /* Figure out which device tree the board wants to use */
> node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, 0);
> if (node < 0) {
> debug("%s: cannot find FDT node\n", __func__);
> - return node;
> - }
> -
> - /*
> - * Read the device tree and place it after the image.
> - * Align the destination address to ARCH_DMA_MINALIGN.
> - */
> - image_info.load_addr = spl_image->load_addr + spl_image->size;
> - ret = spl_load_fit_image(info, sector, fit, base_offset, node,
> - &image_info);
>
> - if (ret < 0)
> - return ret;
> + /*
> + * U-Boot did not find a device tree inside the FIT image. Use
> + * the U-Boot device tree instead.
> + */
> + if (gd->fdt_blob)
> + memcpy((void *)image_info.load_addr, gd->fdt_blob,
> + fdt_totalsize(gd->fdt_blob));
> + else
> + return node;
> + } else {
> + ret = spl_load_fit_image(info, sector, fit, base_offset, node,
> + &image_info);
> + if (ret < 0)
> + return ret;
> + }
>
> /* Make the load-address of the FDT available for the SPL framework */
> spl_image->fdt_addr = (void *)image_info.load_addr;
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 04/11] riscv: add run mode configuration for SPL
2019-07-28 15:57 ` [U-Boot] [PATCH v2 04/11] riscv: add run mode configuration for SPL Lukas Auer
@ 2019-07-29 8:24 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:24 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:32 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> U-Boot SPL can be run in a different privilege mode from U-Boot proper.
> Add new configuration entries for SPL to allow the run mode to be
> configured independently of U-Boot proper.
>
> Extend all uses of the CONFIG_RISCV_SMODE and CONFIG_RISCV_MMODE
> configuration symbols to also cover the SPL equivalents. Ensure that
> files compatible with only one privilege mode are not included in builds
> targeting an incompatible privilege mode.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> arch/riscv/Kconfig | 33 ++++++++++++++++++++++++++-----
> arch/riscv/cpu/ax25/Kconfig | 6 +++---
> arch/riscv/cpu/cpu.c | 6 +++---
> arch/riscv/cpu/generic/Kconfig | 2 +-
> arch/riscv/cpu/start.S | 6 +++---
> arch/riscv/include/asm/encoding.h | 2 +-
> arch/riscv/lib/Makefile | 7 +++++--
> 7 files changed, 44 insertions(+), 18 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 8cfc7d0faa..b8d01ba8e1 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -113,6 +113,23 @@ config RISCV_SMODE
>
> endchoice
>
> +choice
> + prompt "SPL Run Mode"
> + default SPL_RISCV_MMODE
> + depends on SPL
> +
> +config SPL_RISCV_MMODE
> + bool "Machine"
> + help
> + Choose this option to build U-Boot SPL for RISC-V M-Mode.
> +
> +config SPL_RISCV_SMODE
> + bool "Supervisor"
> + help
> + Choose this option to build U-Boot SPL for RISC-V S-Mode.
> +
> +endchoice
> +
> config RISCV_ISA_C
> bool "Emit compressed instructions"
> default y
> @@ -132,34 +149,40 @@ config 64BIT
>
> config SIFIVE_CLINT
> bool
> - depends on RISCV_MMODE
> + depends on RISCV_MMODE || SPL_RISCV_MMODE
> select REGMAP
> select SYSCON
> + select SPL_REGMAP if SPL
> + select SPL_SYSCON if SPL
> help
> The SiFive CLINT block holds memory-mapped control and status registers
> associated with software and timer interrupts.
>
> config ANDES_PLIC
> bool
> - depends on RISCV_MMODE
> + depends on RISCV_MMODE || SPL_RISCV_MMODE
> select REGMAP
> select SYSCON
> + select SPL_REGMAP if SPL
> + select SPL_SYSCON if SPL
> help
> The Andes PLIC block holds memory-mapped claim and pending registers
> associated with software interrupt.
>
> config ANDES_PLMT
> bool
> - depends on RISCV_MMODE
> + depends on RISCV_MMODE || SPL_RISCV_MMODE
> select REGMAP
> select SYSCON
> + select SPL_REGMAP if SPL
> + select SPL_SYSCON if SPL
> help
> The Andes PLMT block holds memory-mapped mtime register
> associated with timer tick.
>
> config RISCV_RDTIME
> bool
> - default y if RISCV_SMODE
> + default y if RISCV_SMODE || SPL_RISCV_SMODE
> help
> The provides the riscv_get_time() API that is implemented using the
> standard rdtime instruction. This is the case for S-mode U-Boot, and
> @@ -189,7 +212,7 @@ config NR_CPUS
>
> config SBI_IPI
> bool
> - default y if RISCV_SMODE
> + default y if RISCV_SMODE || SPL_RISCV_SMODE
> depends on SMP
>
> config XIP
> diff --git a/arch/riscv/cpu/ax25/Kconfig b/arch/riscv/cpu/ax25/Kconfig
> index 6b4b92e692..f4b59cb71d 100644
> --- a/arch/riscv/cpu/ax25/Kconfig
> +++ b/arch/riscv/cpu/ax25/Kconfig
> @@ -4,8 +4,8 @@ config RISCV_NDS
> imply CPU
> imply CPU_RISCV
> imply RISCV_TIMER
> - imply ANDES_PLIC if RISCV_MMODE
> - imply ANDES_PLMT if RISCV_MMODE
> + imply ANDES_PLIC if (RISCV_MMODE || SPL_RISCV_MMODE)
> + imply ANDES_PLMT if (RISCV_MMODE || SPL_RISCV_MMODE)
> help
> Run U-Boot on AndeStar V5 platforms and use some specific features
> which are provided by Andes Technology AndeStar V5 families.
> @@ -14,7 +14,7 @@ if RISCV_NDS
>
> config RISCV_NDS_CACHE
> bool "AndeStar V5 families specific cache support"
> - depends on RISCV_MMODE
> + depends on RISCV_MMODE || SPL_RISCV_MMODE
> help
> Provide Andes Technology AndeStar V5 families specific cache support.
>
> diff --git a/arch/riscv/cpu/cpu.c b/arch/riscv/cpu/cpu.c
> index e9a8b437ed..ecf682c290 100644
> --- a/arch/riscv/cpu/cpu.c
> +++ b/arch/riscv/cpu/cpu.c
> @@ -47,13 +47,13 @@ static inline bool supports_extension(char ext)
>
> return false;
> #else /* !CONFIG_CPU */
> -#ifdef CONFIG_RISCV_MMODE
> +#if CONFIG_IS_ENABLED(RISCV_MMODE)
> return csr_read(misa) & (1 << (ext - 'a'));
> -#else /* !CONFIG_RISCV_MMODE */
> +#else /* !CONFIG_IS_ENABLED(RISCV_MMODE) */
> #warning "There is no way to determine the available extensions in S-mode."
> #warning "Please convert your board to use the RISC-V CPU driver."
> return false;
> -#endif /* CONFIG_RISCV_MMODE */
> +#endif /* CONFIG_IS_ENABLED(RISCV_MMODE) */
> #endif /* CONFIG_CPU */
> }
>
> diff --git a/arch/riscv/cpu/generic/Kconfig b/arch/riscv/cpu/generic/Kconfig
> index 1d6ab5032d..b7552f539f 100644
> --- a/arch/riscv/cpu/generic/Kconfig
> +++ b/arch/riscv/cpu/generic/Kconfig
> @@ -8,5 +8,5 @@ config GENERIC_RISCV
> imply CPU
> imply CPU_RISCV
> imply RISCV_TIMER
> - imply SIFIVE_CLINT if RISCV_MMODE
> + imply SIFIVE_CLINT if (RISCV_MMODE || SPL_RISCV_MMODE)
> imply CMD_CPU
> diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
> index 60ac8c621e..08b9812c4d 100644
> --- a/arch/riscv/cpu/start.S
> +++ b/arch/riscv/cpu/start.S
> @@ -40,7 +40,7 @@ secondary_harts_relocation_error:
> .section .text
> .globl _start
> _start:
> -#ifdef CONFIG_RISCV_MMODE
> +#if CONFIG_IS_ENABLED(RISCV_MMODE)
> csrr a0, mhartid
> #endif
>
> @@ -63,7 +63,7 @@ _start:
>
> #ifdef CONFIG_SMP
> /* set xSIE bit to receive IPIs */
> -#ifdef CONFIG_RISCV_MMODE
> +#if CONFIG_IS_ENABLED(RISCV_MMODE)
> li t0, MIE_MSIE
> #else
> li t0, SIE_SSIE
> @@ -345,7 +345,7 @@ secondary_hart_loop:
>
> #ifdef CONFIG_SMP
> csrr t0, MODE_PREFIX(ip)
> -#ifdef CONFIG_RISCV_MMODE
> +#if CONFIG_IS_ENABLED(RISCV_MMODE)
> andi t0, t0, MIE_MSIE
> #else
> andi t0, t0, SIE_SSIE
> diff --git a/arch/riscv/include/asm/encoding.h b/arch/riscv/include/asm/encoding.h
> index 772668c74e..f5bf85ac19 100644
> --- a/arch/riscv/include/asm/encoding.h
> +++ b/arch/riscv/include/asm/encoding.h
> @@ -7,7 +7,7 @@
> #ifndef RISCV_CSR_ENCODING_H
> #define RISCV_CSR_ENCODING_H
>
> -#ifdef CONFIG_RISCV_SMODE
> +#if CONFIG_IS_ENABLED(RISCV_SMODE)
> #define MODE_PREFIX(__suffix) s##__suffix
> #else
> #define MODE_PREFIX(__suffix) m##__suffix
> diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile
> index 6ae6ebbeaf..e4bc5df297 100644
> --- a/arch/riscv/lib/Makefile
> +++ b/arch/riscv/lib/Makefile
> @@ -10,13 +10,16 @@ obj-$(CONFIG_CMD_BOOTM) += bootm.o
> obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o
> obj-$(CONFIG_CMD_GO) += boot.o
> obj-y += cache.o
> -obj-$(CONFIG_RISCV_RDTIME) += rdtime.o
> +ifeq ($(CONFIG_$(SPL_)RISCV_MMODE),y)
> obj-$(CONFIG_SIFIVE_CLINT) += sifive_clint.o
> obj-$(CONFIG_ANDES_PLIC) += andes_plic.o
> obj-$(CONFIG_ANDES_PLMT) += andes_plmt.o
> +else
> +obj-$(CONFIG_RISCV_RDTIME) += rdtime.o
> +obj-$(CONFIG_SBI_IPI) += sbi_ipi.o
> +endif
> obj-y += interrupts.o
> obj-y += reset.o
> -obj-$(CONFIG_SBI_IPI) += sbi_ipi.o
> obj-y += setjmp.o
> obj-$(CONFIG_SMP) += smp.o
>
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI
2019-07-28 15:57 ` [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI Lukas Auer
@ 2019-07-29 8:32 ` Anup Patel
2019-07-29 15:51 ` Auer, Lukas
0 siblings, 1 reply; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:32 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:55 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> RISC-V OpenSBI is an open-source implementation of the RISC-V Supervisor
> Binary Interface (SBI) specification. It is required by Linux and U-Boot
> running in supervisor mode. This patch adds support for booting via the
> OpenSBI FW_DYNAMIC firmware.
>
> In this configuration, U-Boot SPL starts in machine mode. After loading
> OpenSBI and U-Boot proper, it will start OpenSBI. All necessary
> parameters are generated by U-Boot SPL and passed to OpenSBI. U-Boot
> proper is started in supervisor mode by OpenSBI. Support for OpenSBI is
> enabled with CONFIG_SPL_OPENSBI. An additional configuration entry,
> CONFIG_SPL_OPENSBI_LOAD_ADDR, is used to specify the load address of the
> OpenSBI firmware binary. It is not used directly in U-Boot and instead
> is intended to make the value available to scripts such as FIT
> configuration generators.
>
> The header file include/opensbi.h is based on header files from the
> OpenSBI project. They are recent, as of commit bae54f764570 ("firmware:
> Add fw_dynamic firmware").
Instead of OpenSBI commit, may be mention that we need OpenSBI v0.4
or higher.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> common/image.c | 1 +
> common/spl/Kconfig | 17 ++++++++
> common/spl/Makefile | 1 +
> common/spl/spl.c | 6 +++
> common/spl/spl_opensbi.c | 85 ++++++++++++++++++++++++++++++++++++++++
> include/image.h | 1 +
> include/opensbi.h | 40 +++++++++++++++++++
> include/spl.h | 5 +++
> 8 files changed, 156 insertions(+)
> create mode 100644 common/spl/spl_opensbi.c
> create mode 100644 include/opensbi.h
>
> diff --git a/common/image.c b/common/image.c
> index 9f9538fac2..7c7353a989 100644
> --- a/common/image.c
> +++ b/common/image.c
> @@ -125,6 +125,7 @@ static const table_entry_t uimage_os[] = {
> #if defined(CONFIG_BOOTM_OPENRTOS) || defined(USE_HOSTCC)
> { IH_OS_OPENRTOS, "openrtos", "OpenRTOS", },
> #endif
> + { IH_OS_OPENSBI, "opensbi", "RISC-V OpenSBI", },
>
> { -1, "", "", },
> };
> diff --git a/common/spl/Kconfig b/common/spl/Kconfig
> index 5d6da5db89..939c8517cd 100644
> --- a/common/spl/Kconfig
> +++ b/common/spl/Kconfig
> @@ -1126,6 +1126,23 @@ config SPL_OPTEE
> OP-TEE is an open source Trusted OS which is loaded by SPL.
> More detail at: https://github.com/OP-TEE/optee_os
>
> +config SPL_OPENSBI
> + bool "Support RISC-V OpenSBI"
> + depends on RISCV && SPL_RISCV_MMODE && RISCV_SMODE
> + help
> + OpenSBI is an open-source implementation of the RISC-V Supervisor Binary
> + Interface (SBI) specification. U-Boot supports the OpenSBI FW_DYNAMIC
> + firmware. It is loaded and started by U-Boot SPL.
> +
> + More details are available at https://github.com/riscv/opensbi and
> + https://github.com/riscv/riscv-sbi-doc
> +
> +config SPL_OPENSBI_LOAD_ADDR
> + hex "OpenSBI load address"
> + depends on SPL_OPENSBI
> + help
> + Load address of the OpenSBI binary.
> +
> config TPL
> bool
> depends on SUPPORT_TPL
> diff --git a/common/spl/Makefile b/common/spl/Makefile
> index d28de692dd..5ce6f4ae48 100644
> --- a/common/spl/Makefile
> +++ b/common/spl/Makefile
> @@ -22,6 +22,7 @@ obj-$(CONFIG_$(SPL_TPL_)NET_SUPPORT) += spl_net.o
> obj-$(CONFIG_$(SPL_TPL_)MMC_SUPPORT) += spl_mmc.o
> obj-$(CONFIG_$(SPL_TPL_)ATF) += spl_atf.o
> obj-$(CONFIG_$(SPL_TPL_)OPTEE) += spl_optee.o
> +obj-$(CONFIG_$(SPL_TPL_)OPENSBI) += spl_opensbi.o
> obj-$(CONFIG_$(SPL_TPL_)USB_STORAGE) += spl_usb.o
> obj-$(CONFIG_$(SPL_TPL_)FS_FAT) += spl_fat.o
> obj-$(CONFIG_$(SPL_TPL_)FS_EXT4) += spl_ext.o
> diff --git a/common/spl/spl.c b/common/spl/spl.c
> index d5e3f680f4..1ed4741bdc 100644
> --- a/common/spl/spl.c
> +++ b/common/spl/spl.c
> @@ -659,6 +659,12 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
> (void *)spl_image.entry_point);
> break;
> #endif
> +#if CONFIG_IS_ENABLED(OPENSBI)
Should this be "CONFIG_IS_ENABLED(SPL_OPENSBI)" ?
Am I missing something here ?
> + case IH_OS_OPENSBI:
> + debug("Jumping to U-Boot via RISC-V OpenSBI\n");
> + spl_invoke_opensbi(&spl_image);
> + break;
> +#endif
> #ifdef CONFIG_SPL_OS_BOOT
> case IH_OS_LINUX:
> debug("Jumping to Linux\n");
> diff --git a/common/spl/spl_opensbi.c b/common/spl/spl_opensbi.c
> new file mode 100644
> index 0000000000..a6b4480ed2
> --- /dev/null
> +++ b/common/spl/spl_opensbi.c
> @@ -0,0 +1,85 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2019 Fraunhofer AISEC,
> + * Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> + *
> + * Based on common/spl/spl_atf.c
> + */
> +#include <common.h>
> +#include <errno.h>
> +#include <spl.h>
> +#include <asm/smp.h>
> +#include <opensbi.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +struct fw_dynamic_info opensbi_info;
> +
> +static int spl_opensbi_find_uboot_node(void *blob, int *uboot_node)
> +{
> + int fit_images_node, node;
> + const char *fit_os;
> +
> + fit_images_node = fdt_path_offset(blob, "/fit-images");
> + if (fit_images_node < 0)
> + return -ENODEV;
> +
> + fdt_for_each_subnode(node, blob, fit_images_node) {
> + fit_os = fdt_getprop(blob, node, FIT_OS_PROP, NULL);
> + if (!fit_os)
> + continue;
> +
> + if (genimg_get_os_id(fit_os) == IH_OS_U_BOOT) {
> + *uboot_node = node;
> + return 0;
> + }
> + }
> +
> + return -ENODEV;
> +}
> +
> +void spl_invoke_opensbi(struct spl_image_info *spl_image)
> +{
> + int ret, uboot_node;
> + ulong uboot_entry;
> + void (*opensbi_entry)(ulong hartid, ulong dtb, ulong info);
> +
> + if (!spl_image->fdt_addr) {
> + pr_err("No device tree specified in SPL image\n");
> + hang();
> + }
> +
> + /* Find U-Boot image in /fit-images */
> + ret = spl_opensbi_find_uboot_node(spl_image->fdt_addr, &uboot_node);
> + if (ret) {
> + pr_err("Can't find U-Boot node, %d", ret);
> + hang();
> + }
> +
> + /* Get U-Boot entry point */
> + uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
> + "entry-point");
> + if (uboot_entry == FDT_ERROR)
> + uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
> + "load-addr");
> +
> + /* Prepare obensbi_info object */
> + opensbi_info.magic = FW_DYNAMIC_INFO_MAGIC_VALUE;
> + opensbi_info.version = FW_DYNAMIC_INFO_VERSION;
> + opensbi_info.next_addr = uboot_entry;
> + opensbi_info.next_mode = FW_DYNAMIC_INFO_NEXT_MODE_S;
> + opensbi_info.options = SBI_SCRATCH_NO_BOOT_PRINTS;
> +
> + opensbi_entry = (void (*)(ulong, ulong, ulong))spl_image->entry_point;
> + invalidate_icache_all();
> +
> +#ifdef CONFIG_SMP
> + ret = smp_call_function((ulong)spl_image->entry_point,
> + (ulong)spl_image->fdt_addr,
> + (ulong)&opensbi_info);
> + if (ret)
> + hang();
> +#endif
> + opensbi_entry(gd->arch.boot_hart, (ulong)spl_image->fdt_addr,
> + (ulong)&opensbi_info);
> +}
> diff --git a/include/image.h b/include/image.h
> index 5f82194951..78a2dffe54 100644
> --- a/include/image.h
> +++ b/include/image.h
> @@ -156,6 +156,7 @@ enum {
> IH_OS_OPENRTOS, /* OpenRTOS */
> IH_OS_ARM_TRUSTED_FIRMWARE, /* ARM Trusted Firmware */
> IH_OS_TEE, /* Trusted Execution Environment */
> + IH_OS_OPENSBI, /* RISC-V OpenSBI */
>
> IH_OS_COUNT,
> };
> diff --git a/include/opensbi.h b/include/opensbi.h
> new file mode 100644
> index 0000000000..9f1d62e7dd
> --- /dev/null
> +++ b/include/opensbi.h
> @@ -0,0 +1,40 @@
> +/* SPDX-License-Identifier: BSD-2-Clause */
> +/*
> + * Copyright (c) 2019 Western Digital Corporation or its affiliates.
> + *
> + * Based on include/sbi/{fw_dynamic.h,sbi_scratch.h} from the OpenSBI project.
> + */
> +#ifndef OPENSBI_H
> +#define OPENSBI_H
> +
> +/** Expected value of info magic ('OSBI' ascii string in hex) */
> +#define FW_DYNAMIC_INFO_MAGIC_VALUE 0x4942534f
> +
> +/** Maximum supported info version */
> +#define FW_DYNAMIC_INFO_VERSION 0x1
> +
> +/** Possible next mode values */
> +#define FW_DYNAMIC_INFO_NEXT_MODE_U 0x0
> +#define FW_DYNAMIC_INFO_NEXT_MODE_S 0x1
> +#define FW_DYNAMIC_INFO_NEXT_MODE_M 0x3
> +
> +enum sbi_scratch_options {
> + /** Disable prints during boot */
> + SBI_SCRATCH_NO_BOOT_PRINTS = (1 << 0),
> +};
> +
> +/** Representation dynamic info passed by previous booting stage */
> +struct fw_dynamic_info {
> + /** Info magic */
> + unsigned long magic;
> + /** Info version */
> + unsigned long version;
> + /** Next booting stage address */
> + unsigned long next_addr;
> + /** Next booting stage mode */
> + unsigned long next_mode;
> + /** Options for OpenSBI library */
> + unsigned long options;
> +} __packed;
> +
> +#endif
> diff --git a/include/spl.h b/include/spl.h
> index a90f971a23..e4640f3830 100644
> --- a/include/spl.h
> +++ b/include/spl.h
> @@ -374,6 +374,11 @@ void spl_invoke_atf(struct spl_image_info *spl_image);
> */
> void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
>
> +/**
> + * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
> + */
> +void spl_invoke_opensbi(struct spl_image_info *spl_image);
> +
> /**
> * board_return_to_bootrom - allow for boards to continue with the boot ROM
> *
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Apart from minor queries/comments above, looks good to me.
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 06/11] riscv: add SPL support
2019-07-28 15:57 ` [U-Boot] [PATCH v2 06/11] riscv: add SPL support Lukas Auer
@ 2019-07-29 8:34 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:34 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:31 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> U-Boot SPL on the generic RISC-V CPU supports two boot flows, directly
> jumping to the image and via OpenSBI firmware. In the first case, both
> U-Boot SPL and proper must be compiled to run in the same privilege
> mode. Using OpenSBI firmware, U-Boot SPL must be compiled for machine
> mode and U-Boot proper for supervisor mode.
>
> To be able to use SPL, boards have to provide a supported SPL boot
> device.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> arch/Kconfig | 6 +++
> arch/riscv/Kconfig | 3 ++
> arch/riscv/cpu/generic/Kconfig | 3 ++
> arch/riscv/cpu/start.S | 23 +++++++++-
> arch/riscv/cpu/u-boot-spl.lds | 82 ++++++++++++++++++++++++++++++++++
> arch/riscv/include/asm/spl.h | 31 +++++++++++++
> arch/riscv/lib/Makefile | 1 +
> arch/riscv/lib/spl.c | 48 ++++++++++++++++++++
> 8 files changed, 196 insertions(+), 1 deletion(-)
> create mode 100644 arch/riscv/cpu/u-boot-spl.lds
> create mode 100644 arch/riscv/include/asm/spl.h
> create mode 100644 arch/riscv/lib/spl.c
>
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 949eb28dfa..8350d9b1ea 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -76,6 +76,12 @@ config RISCV
> imply MTD
> imply TIMER
> imply CMD_DM
> + imply SPL_DM
> + imply SPL_OF_CONTROL
> + imply SPL_LIBCOMMON_SUPPORT
> + imply SPL_LIBGENERIC_SUPPORT
> + imply SPL_SERIAL_SUPPORT
> + imply SPL_TIMER
>
> config SANDBOX
> bool "Sandbox"
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index b8d01ba8e1..01975d7c60 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -226,4 +226,7 @@ config STACK_SIZE_SHIFT
> int
> default 13
>
> +config SPL_LDSCRIPT
> + default "arch/riscv/cpu/u-boot-spl.lds"
> +
> endmenu
> diff --git a/arch/riscv/cpu/generic/Kconfig b/arch/riscv/cpu/generic/Kconfig
> index b7552f539f..b2cb155d6d 100644
> --- a/arch/riscv/cpu/generic/Kconfig
> +++ b/arch/riscv/cpu/generic/Kconfig
> @@ -10,3 +10,6 @@ config GENERIC_RISCV
> imply RISCV_TIMER
> imply SIFIVE_CLINT if (RISCV_MMODE || SPL_RISCV_MMODE)
> imply CMD_CPU
> + imply SPL_CPU_SUPPORT
> + imply SPL_OPENSBI
> + imply SPL_LOAD_FIT
> diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
> index 08b9812c4d..e053197645 100644
> --- a/arch/riscv/cpu/start.S
> +++ b/arch/riscv/cpu/start.S
> @@ -76,7 +76,11 @@ _start:
> */
> call_board_init_f:
> li t0, -16
> +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK)
> + li t1, CONFIG_SPL_STACK
> +#else
> li t1, CONFIG_SYS_INIT_SP_ADDR
> +#endif
> and sp, t1, t0 /* force 16 byte alignment */
>
> call_board_init_f_0:
> @@ -160,7 +164,24 @@ wait_for_gd_init:
>
> mv a0, zero /* a0 <-- boot_flags = 0 */
> la t5, board_init_f
> - jr t5 /* jump to board_init_f() */
> + jalr t5 /* jump to board_init_f() */
> +
> +#ifdef CONFIG_SPL_BUILD
> +spl_clear_bss:
> + la t0, __bss_start
> + la t1, __bss_end
> + beq t0, t1, spl_call_board_init_r
> +
> +spl_clear_bss_loop:
> + SREG zero, 0(t0)
> + addi t0, t0, REGBYTES
> + bne t0, t1, spl_clear_bss_loop
> +
> +spl_call_board_init_r:
> + mv a0, zero
> + mv a1, zero
> + jal board_init_r
> +#endif
>
> /*
> * void relocate_code (addr_sp, gd, addr_moni)
> diff --git a/arch/riscv/cpu/u-boot-spl.lds b/arch/riscv/cpu/u-boot-spl.lds
> new file mode 100644
> index 0000000000..32255d58de
> --- /dev/null
> +++ b/arch/riscv/cpu/u-boot-spl.lds
> @@ -0,0 +1,82 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Based on arch/riscv/cpu/u-boot.lds, which is
> + * Copyright (C) 2017 Andes Technology Corporation
> + * Rick Chen, Andes Technology Corporation <rick@andestech.com>
> + *
> + * and arch/mips/cpu/u-boot-spl.lds.
> + */
> +MEMORY { .spl_mem : ORIGIN = IMAGE_TEXT_BASE, LENGTH = IMAGE_MAX_SIZE }
> +MEMORY { .bss_mem : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \
> + LENGTH = CONFIG_SPL_BSS_MAX_SIZE }
> +
> +OUTPUT_ARCH("riscv")
> +ENTRY(_start)
> +
> +SECTIONS
> +{
> + . = ALIGN(4);
> + .text : {
> + arch/riscv/cpu/start.o (.text)
> + *(.text*)
> + } > .spl_mem
> +
> + . = ALIGN(4);
> + .rodata : {
> + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
> + } > .spl_mem
> +
> + . = ALIGN(4);
> + .data : {
> + *(.data*)
> + } > .spl_mem
> + . = ALIGN(4);
> +
> + .got : {
> + __got_start = .;
> + *(.got.plt) *(.got)
> + __got_end = .;
> + } > .spl_mem
> +
> + . = ALIGN(4);
> +
> + .u_boot_list : {
> + KEEP(*(SORT(.u_boot_list*)));
> + } > .spl_mem
> +
> + . = ALIGN(4);
> +
> + .binman_sym_table : {
> + __binman_sym_start = .;
> + KEEP(*(SORT(.binman_sym*)));
> + __binman_sym_end = .;
> + } > .spl_mem
> +
> + . = ALIGN(4);
> +
> + /DISCARD/ : { *(.rela.plt*) }
> + .rela.dyn : {
> + __rel_dyn_start = .;
> + *(.rela*)
> + __rel_dyn_end = .;
> + } > .spl_mem
> +
> + . = ALIGN(4);
> +
> + .dynsym : {
> + __dyn_sym_start = .;
> + *(.dynsym)
> + __dyn_sym_end = .;
> + } > .spl_mem
> +
> + . = ALIGN(4);
> +
> + _end = .;
> +
> + .bss : {
> + __bss_start = .;
> + *(.bss*)
> + . = ALIGN(4);
> + __bss_end = .;
> + } > .bss_mem
> +}
> diff --git a/arch/riscv/include/asm/spl.h b/arch/riscv/include/asm/spl.h
> new file mode 100644
> index 0000000000..45c03fb9b6
> --- /dev/null
> +++ b/arch/riscv/include/asm/spl.h
> @@ -0,0 +1,31 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Based on arch/mips/include/asm/spl.h.
> + *
> + * (C) Copyright 2012
> + * Texas Instruments, <www.ti.com>
> + */
> +#ifndef _ASM_RISCV_SPL_H_
> +#define _ASM_RISCV_SPL_H_
> +
> +enum {
> + BOOT_DEVICE_RAM,
> + BOOT_DEVICE_MMC1,
> + BOOT_DEVICE_MMC2,
> + BOOT_DEVICE_MMC2_2,
> + BOOT_DEVICE_NAND,
> + BOOT_DEVICE_ONENAND,
> + BOOT_DEVICE_NOR,
> + BOOT_DEVICE_UART,
> + BOOT_DEVICE_SPI,
> + BOOT_DEVICE_USB,
> + BOOT_DEVICE_SATA,
> + BOOT_DEVICE_I2C,
> + BOOT_DEVICE_BOARD,
> + BOOT_DEVICE_DFU,
> + BOOT_DEVICE_XIP,
> + BOOT_DEVICE_BOOTROM,
> + BOOT_DEVICE_NONE
> +};
> +
> +#endif
> diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile
> index e4bc5df297..c9179a5ff8 100644
> --- a/arch/riscv/lib/Makefile
> +++ b/arch/riscv/lib/Makefile
> @@ -22,6 +22,7 @@ obj-y += interrupts.o
> obj-y += reset.o
> obj-y += setjmp.o
> obj-$(CONFIG_SMP) += smp.o
> +obj-$(CONFIG_SPL_BUILD) += spl.o
>
> # For building EFI apps
> CFLAGS_$(EFI_CRT0) := $(CFLAGS_EFI)
> diff --git a/arch/riscv/lib/spl.c b/arch/riscv/lib/spl.c
> new file mode 100644
> index 0000000000..bea8695987
> --- /dev/null
> +++ b/arch/riscv/lib/spl.c
> @@ -0,0 +1,48 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2019 Fraunhofer AISEC,
> + * Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> + */
> +#include <common.h>
> +#include <spl.h>
> +#include <asm/smp.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +__weak void board_init_f(ulong dummy)
> +{
> + int ret;
> +
> + ret = spl_early_init();
> + if (ret)
> + panic("spl_early_init() failed: %d\n", ret);
> +
> + arch_cpu_init_dm();
> +
> + preloader_console_init();
> +}
> +
> +void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
> +{
> + typedef void __noreturn (*image_entry_riscv_t)(ulong hart, void *dtb);
> + void *fdt_blob;
> + int ret;
> +
> +#if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
> + fdt_blob = spl_image->fdt_addr;
> +#else
> + fdt_blob = (void *)gd->fdt_blob;
> +#endif
> +
> + image_entry_riscv_t image_entry =
> + (image_entry_riscv_t)spl_image->entry_point;
> + invalidate_icache_all();
> +
> + debug("image entry point: 0x%lX\n", spl_image->entry_point);
> +#ifdef CONFIG_SMP
> + ret = smp_call_function(spl_image->entry_point, (ulong)fdt_blob, 0);
> + if (ret)
> + hang();
> +#endif
> + image_entry(gd->arch.boot_hart, fdt_blob);
> +}
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 07/11] riscv: support SPL stack and global data relocation
2019-07-28 15:57 ` [U-Boot] [PATCH v2 07/11] riscv: support SPL stack and global data relocation Lukas Auer
@ 2019-07-29 8:36 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:36 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:27 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> To support relocation of the stack and global data on RISC-V, the
> secondary harts must be notified of the change using IPIs. We can reuse
> the hart relocation code for this purpose. It uses global data to store
> the new stack pointer and global data pointer for the secondary harts.
> This means that we cannot update the global data pointer of the main
> hart in spl_relocate_stack_gd(), because the secondary harts have not
> yet been relocated at this point. It is updated after the secondary
> harts have been notified.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> arch/riscv/cpu/start.S | 35 ++++++++++++++++++++++++++++++++++-
> common/spl/spl.c | 2 +-
> 2 files changed, 35 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
> index e053197645..e8c65c887a 100644
> --- a/arch/riscv/cpu/start.S
> +++ b/arch/riscv/cpu/start.S
> @@ -170,13 +170,46 @@ wait_for_gd_init:
> spl_clear_bss:
> la t0, __bss_start
> la t1, __bss_end
> - beq t0, t1, spl_call_board_init_r
> + beq t0, t1, spl_stack_gd_setup
>
> spl_clear_bss_loop:
> SREG zero, 0(t0)
> addi t0, t0, REGBYTES
> bne t0, t1, spl_clear_bss_loop
>
> +spl_stack_gd_setup:
> + jal spl_relocate_stack_gd
> +
> + /* skip setup if we did not relocate */
> + beqz a0, spl_call_board_init_r
> + mv s0, a0
> +
> + /* setup stack on main hart */
> +#ifdef CONFIG_SMP
> + /* tp: hart id */
> + slli t0, tp, CONFIG_STACK_SIZE_SHIFT
> + sub sp, s0, t0
> +#else
> + mv sp, s0
> +#endif
> +
> + /* set new stack and global data pointer on secondary harts */
> +spl_secondary_hart_stack_gd_setup:
> + la a0, secondary_hart_relocate
> + mv a1, s0
> + mv a2, s0
> + jal smp_call_function
> +
> + /* hang if relocation of secondary harts has failed */
> + beqz a0, 1f
> + mv a1, a0
> + la a0, secondary_harts_relocation_error
> + jal printf
> + jal hang
> +
> + /* set new global data pointer on main hart */
> +1: mv gp, s0
> +
> spl_call_board_init_r:
> mv a0, zero
> mv a1, zero
> diff --git a/common/spl/spl.c b/common/spl/spl.c
> index 1ed4741bdc..834f39908b 100644
> --- a/common/spl/spl.c
> +++ b/common/spl/spl.c
> @@ -756,7 +756,7 @@ ulong spl_relocate_stack_gd(void)
> #if CONFIG_IS_ENABLED(DM)
> dm_fixup_for_gd_move(new_gd);
> #endif
> -#if !defined(CONFIG_ARM)
> +#if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
> gd = new_gd;
> #endif
> return ptr;
> --
> 2.21.0
>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 08/11] riscv: add a generic FIT generator script
2019-07-28 15:57 ` [U-Boot] [PATCH v2 08/11] riscv: add a generic FIT generator script Lukas Auer
@ 2019-07-29 8:39 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:39 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:30 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> Add a generic FIT generator script for RISC-V to generate images
> containing U-Boot, OpenSBI FW_DYNAMIC firmware, and optionally one or
> more device trees. The location of the OpenSBI firmware binary can be
> specified with the OPENSBI environment variable. By default, it is
> assumed to be "fw_dynamic.bin" and located in the U-Boot top-level.
> Device trees are passed as arguments to the generator script. A separate
> configuration entry is created for each device tree.
>
> The load addresses of U-Boot and OpenSBI are parsed from the U-Boot
> configuration. They can be overwritten with the UBOOT_LOAD_ADDR and
> OPENSBI_LOAD_ADDR environment variables.
>
> The script is based on the i.MX (arch/arm/mach-imx/mkimage_fit_atf.sh)
> and Allwinner sunxi (board/sunxi/mksunxi_fit_atf.sh) FIT generator
> scripts.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++++
> 1 file changed, 100 insertions(+)
> create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh
>
> diff --git a/arch/riscv/lib/mkimage_fit_opensbi.sh b/arch/riscv/lib/mkimage_fit_opensbi.sh
> new file mode 100755
> index 0000000000..d6f95e5bfd
> --- /dev/null
> +++ b/arch/riscv/lib/mkimage_fit_opensbi.sh
> @@ -0,0 +1,100 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +# script to generate FIT image source for RISC-V boards with OpenSBI
> +# and, optionally, multiple device trees (given on the command line).
> +#
> +# usage: $0 [<dt_name> [<dt_name] ...]
> +
> +[ -z "$OPENSBI" ] && OPENSBI="fw_dynamic.bin"
> +
> +if [ -z "$UBOOT_LOAD_ADDR" ]; then
> + UBOOT_LOAD_ADDR="$(grep "^CONFIG_SYS_TEXT_BASE=" .config | awk 'BEGIN{FS="="} {print $2}')"
> +fi
> +
> +if [ -z "$OPENSBI_LOAD_ADDR" ]; then
> + OPENSBI_LOAD_ADDR="$(grep "^CONFIG_SPL_OPENSBI_LOAD_ADDR=" .config | awk 'BEGIN{FS="="} {print $2}')"
> +fi
> +
> +if [ ! -f $OPENSBI ]; then
> + echo "WARNING: OpenSBI binary \"$OPENSBI\" not found, resulting binary is not functional." >&2
> + OPENSBI=/dev/null
> +fi
> +
> +cat << __HEADER_EOF
> +/dts-v1/;
> +
> +/ {
> + description = "Configuration to load OpenSBI before U-Boot";
> +
> + images {
> + uboot {
> + description = "U-Boot";
> + data = /incbin/("u-boot-nodtb.bin");
> + type = "standalone";
> + os = "U-Boot";
> + arch = "riscv";
> + compression = "none";
> + load = <$UBOOT_LOAD_ADDR>;
> + };
> + opensbi {
> + description = "RISC-V OpenSBI";
> + data = /incbin/("$OPENSBI");
> + type = "firmware";
> + os = "opensbi";
> + arch = "riscv";
> + compression = "none";
> + load = <$OPENSBI_LOAD_ADDR>;
> + entry = <$OPENSBI_LOAD_ADDR>;
> + };
> +__HEADER_EOF
> +
> +cnt=1
> +for dtname in $*
> +do
> + cat << __FDT_IMAGE_EOF
> + fdt_$cnt {
> + description = "$(basename $dtname .dtb)";
> + data = /incbin/("$dtname");
> + type = "flat_dt";
> + compression = "none";
> + };
> +__FDT_IMAGE_EOF
> +cnt=$((cnt+1))
> +done
> +
> +cat << __CONF_HEADER_EOF
> + };
> + configurations {
> + default = "config_1";
> +
> +__CONF_HEADER_EOF
> +
> +if [ $# -eq 0 ]; then
> +cat << __CONF_SECTION_EOF
> + config_1 {
> + description = "U-Boot FIT";
> + firmware = "opensbi";
> + loadables = "uboot";
> + };
> +__CONF_SECTION_EOF
> +else
> +cnt=1
> +for dtname in $*
> +do
> +cat << __CONF_SECTION_EOF
> + config_$cnt {
> + description = "$(basename $dtname .dtb)";
> + firmware = "opensbi";
> + loadables = "uboot";
> + fdt = "fdt_$cnt";
> + };
> +__CONF_SECTION_EOF
> +cnt=$((cnt+1))
> +done
> +fi
> +
> +cat << __ITS_EOF
> + };
> +};
> +__ITS_EOF
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 09/11] riscv: set default FIT generator script and build target for SPL builds
2019-07-28 15:57 ` [U-Boot] [PATCH v2 09/11] riscv: set default FIT generator script and build target for SPL builds Lukas Auer
@ 2019-07-29 8:40 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:40 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:30 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> Now that we have a generic FIT generator script for RISC-V, set it as
> the default. To also build the FIT image by default, set the default
> build target to "u-boot.itb" if CONFIG_SPL_LOAD_FIT is enabled.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> Kconfig | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/Kconfig b/Kconfig
> index d2eb744e70..a78dd59a79 100644
> --- a/Kconfig
> +++ b/Kconfig
> @@ -250,7 +250,8 @@ config BUILD_TARGET
> default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
> default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
> default "u-boot-elf.srec" if RCAR_GEN3
> - default "u-boot.itb" if SPL_LOAD_FIT && (ROCKCHIP_RK3399 || ARCH_SUNXI)
> + default "u-boot.itb" if SPL_LOAD_FIT && (ROCKCHIP_RK3399 || \
> + ARCH_SUNXI || RISCV)
> default "u-boot.kwb" if KIRKWOOD
> default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
> help
> @@ -463,6 +464,7 @@ config SPL_FIT_GENERATOR
> depends on SPL_FIT
> default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI
> default "arch/arm/mach-rockchip/make_fit_atf.py" if SPL_LOAD_FIT && ARCH_ROCKCHIP
> + default "arch/riscv/lib/mkimage_fit_opensbi.sh" if SPL_LOAD_FIT && RISCV
> help
> Specifies a (platform specific) script file to generate the FIT
> source file used to build the U-Boot FIT image file. This gets
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 10/11] riscv: qemu: add SPL configuration
2019-07-28 15:57 ` [U-Boot] [PATCH v2 10/11] riscv: qemu: add SPL configuration Lukas Auer
@ 2019-07-29 8:41 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:41 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:32 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> Add two new configurations (qemu-riscv{32,64}_spl_defconfig) with SPL
> enabled for RISC-V QEMU. QEMU does not require SPL to run U-Boot. The
> configurations are meant to help the development of SPL on RISC-V.
>
> The configurations enable RAM as the only SPL boot device. Images must
> be loaded at address 0x80200000. In the default boot flow, U-Boot SPL
> starts in machine mode, loads the OpenSBI FW_DYNAMIC firmware and U-Boot
> proper from the supplied FIT image, and starts OpenSBI. U-Boot proper is
> then started in supervisor mode by OpenSBI.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
> board/emulation/qemu-riscv/Kconfig | 10 ++++++++++
> board/emulation/qemu-riscv/MAINTAINERS | 2 ++
> board/emulation/qemu-riscv/qemu-riscv.c | 17 +++++++++++++++++
> configs/qemu-riscv32_spl_defconfig | 11 +++++++++++
> configs/qemu-riscv64_spl_defconfig | 12 ++++++++++++
> include/configs/qemu-riscv.h | 14 ++++++++++++++
> 6 files changed, 66 insertions(+)
> create mode 100644 configs/qemu-riscv32_spl_defconfig
> create mode 100644 configs/qemu-riscv64_spl_defconfig
>
> diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
> index 6cc7c31dc6..1928d6dda0 100644
> --- a/board/emulation/qemu-riscv/Kconfig
> +++ b/board/emulation/qemu-riscv/Kconfig
> @@ -13,13 +13,21 @@ config SYS_CONFIG_NAME
> default "qemu-riscv"
>
> config SYS_TEXT_BASE
> + default 0x81200000 if SPL
> default 0x80000000 if !RISCV_SMODE
> default 0x80200000 if RISCV_SMODE && ARCH_RV64I
> default 0x80400000 if RISCV_SMODE && ARCH_RV32I
>
> +config SPL_TEXT_BASE
> + default 0x80000000
> +
> +config SPL_OPENSBI_LOAD_ADDR
> + default 0x81000000
> +
> config BOARD_SPECIFIC_OPTIONS # dummy
> def_bool y
> select GENERIC_RISCV
> + select SUPPORT_SPL
> imply SYS_NS16550
> imply VIRTIO_MMIO
> imply VIRTIO_NET
> @@ -43,5 +51,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
> imply CMD_PCI
> imply E1000
> imply NVME
> + imply SPL_RAM_SUPPORT
> + imply SPL_RAM_DEVICE
>
> endif
> diff --git a/board/emulation/qemu-riscv/MAINTAINERS b/board/emulation/qemu-riscv/MAINTAINERS
> index c701c83d77..78969ed6bd 100644
> --- a/board/emulation/qemu-riscv/MAINTAINERS
> +++ b/board/emulation/qemu-riscv/MAINTAINERS
> @@ -5,5 +5,7 @@ F: board/emulation/qemu-riscv/
> F: include/configs/qemu-riscv.h
> F: configs/qemu-riscv32_defconfig
> F: configs/qemu-riscv32_smode_defconfig
> +F: configs/qemu-riscv32_spl_defconfig
> F: configs/qemu-riscv64_defconfig
> F: configs/qemu-riscv64_smode_defconfig
> +F: configs/qemu-riscv64_spl_defconfig
> diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c
> index d6167aaef1..e04bd3001c 100644
> --- a/board/emulation/qemu-riscv/qemu-riscv.c
> +++ b/board/emulation/qemu-riscv/qemu-riscv.c
> @@ -6,6 +6,7 @@
> #include <common.h>
> #include <dm.h>
> #include <fdtdec.h>
> +#include <spl.h>
> #include <virtio_types.h>
> #include <virtio.h>
>
> @@ -87,3 +88,19 @@ int ft_board_setup(void *blob, bd_t *bd)
>
> return 0;
> }
> +
> +#ifdef CONFIG_SPL
> +u32 spl_boot_device(void)
> +{
> + /* RISC-V QEMU only supports RAM as SPL boot device */
> + return BOOT_DEVICE_RAM;
> +}
> +#endif
> +
> +#ifdef CONFIG_SPL_LOAD_FIT
> +int board_fit_config_name_match(const char *name)
> +{
> + /* boot using first FIT config */
> + return 0;
> +}
> +#endif
> diff --git a/configs/qemu-riscv32_spl_defconfig b/configs/qemu-riscv32_spl_defconfig
> new file mode 100644
> index 0000000000..78e755b36a
> --- /dev/null
> +++ b/configs/qemu-riscv32_spl_defconfig
> @@ -0,0 +1,11 @@
> +CONFIG_RISCV=y
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_TARGET_QEMU_VIRT=y
> +CONFIG_RISCV_SMODE=y
> +CONFIG_DISTRO_DEFAULTS=y
> +CONFIG_FIT=y
> +CONFIG_DISPLAY_CPUINFO=y
> +CONFIG_DISPLAY_BOARDINFO=y
> +# CONFIG_CMD_MII is not set
> +CONFIG_OF_PRIOR_STAGE=y
> diff --git a/configs/qemu-riscv64_spl_defconfig b/configs/qemu-riscv64_spl_defconfig
> new file mode 100644
> index 0000000000..a3f5e29d58
> --- /dev/null
> +++ b/configs/qemu-riscv64_spl_defconfig
> @@ -0,0 +1,12 @@
> +CONFIG_RISCV=y
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_TARGET_QEMU_VIRT=y
> +CONFIG_ARCH_RV64I=y
> +CONFIG_RISCV_SMODE=y
> +CONFIG_DISTRO_DEFAULTS=y
> +CONFIG_FIT=y
> +CONFIG_DISPLAY_CPUINFO=y
> +CONFIG_DISPLAY_BOARDINFO=y
> +# CONFIG_CMD_MII is not set
> +CONFIG_OF_PRIOR_STAGE=y
> diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h
> index df22f780b0..69aa82d36a 100644
> --- a/include/configs/qemu-riscv.h
> +++ b/include/configs/qemu-riscv.h
> @@ -8,6 +8,18 @@
>
> #include <linux/sizes.h>
>
> +#ifdef CONFIG_SPL
> +
> +#define CONFIG_SPL_MAX_SIZE 0x00100000
> +#define CONFIG_SPL_BSS_START_ADDR 0x84000000
> +#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000
> +#define CONFIG_SYS_SPL_MALLOC_START 0x84100000
> +#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000
> +
> +#define CONFIG_SPL_LOAD_FIT_ADDRESS 0x80200000
> +
> +#endif
> +
> #define CONFIG_SYS_SDRAM_BASE 0x80000000
> #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
>
> @@ -22,6 +34,7 @@
> /* Environment options */
> #define CONFIG_ENV_SIZE SZ_128K
>
> +#ifndef CONFIG_SPL_BUILD
> #define BOOT_TARGET_DEVICES(func) \
> func(QEMU, qemu, na) \
> func(VIRTIO, virtio, 0) \
> @@ -51,5 +64,6 @@
> #define CONFIG_PREBOOT \
> "setenv fdt_addr ${fdtcontroladdr};" \
> "fdt addr ${fdtcontroladdr};"
> +#endif
>
> #endif /* __CONFIG_H */
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 11/11] doc: update QEMU RISC-V documentation
2019-07-28 15:57 ` [U-Boot] [PATCH v2 11/11] doc: update QEMU RISC-V documentation Lukas Auer
@ 2019-07-29 8:42 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:42 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:29 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> The available defconfigs for RISC-V QEMU have changed. We now have
> configurations to compile U-Boot to run in supervisor mode and for
> U-Boot SPL. Update the QEMU RISC-V documentation to reflect these
> changes.
>
> Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2:
> - Rebase on master and format documentation as reStructuredText
>
> doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++++++++++++++++++-
> 1 file changed, 59 insertions(+), 1 deletion(-)
>
> diff --git a/doc/board/emulation/qemu-riscv.rst b/doc/board/emulation/qemu-riscv.rst
> index 214833496b..9472a6f812 100644
> --- a/doc/board/emulation/qemu-riscv.rst
> +++ b/doc/board/emulation/qemu-riscv.rst
> @@ -6,7 +6,8 @@ QEMU RISC-V
>
> QEMU for RISC-V supports a special 'virt' machine designed for emulation and
> virtualization purposes. This document describes how to run U-Boot under it.
> -Both 32-bit 64-bit targets are supported.
> +Both 32-bit and 64-bit targets are supported, running in either machine or
> +supervisor mode.
>
> The QEMU virt machine models a generic RISC-V virtual machine with support for
> the VirtIO standard networking and block storage devices. It has CLINT, PLIC,
> @@ -28,6 +29,11 @@ Set the CROSS_COMPILE environment variable as usual, and run:
> make qemu-riscv64_defconfig
> make
>
> +This will compile U-Boot for machine mode. To build supervisor mode binaries,
> +use the configurations qemu-riscv32_smode_defconfig and
> +qemu-riscv64_smode_defconfig instead. Note that U-Boot running in supervisor
> +mode requires a supervisor binary interface (SBI), such as RISC-V OpenSBI.
> +
> Running U-Boot
> --------------
> The minimal QEMU command line to get U-Boot up and running is:
> @@ -46,4 +52,56 @@ parameter. For example, '-m 2G' creates 2GiB memory for the target,
> and the memory node in the embedded DTB created by QEMU reflects
> the new setting.
>
> +For instructions on how to run U-Boot in supervisor mode on QEMU
> +with OpenSBI, see the documentation available with OpenSBI:
> +https://github.com/riscv/opensbi/blob/master/docs/platform/qemu_virt.md
> +
> These have been tested in QEMU 3.0.0.
> +
> +Running U-Boot SPL
> +------------------
> +In the default SPL configuration, U-Boot SPL starts in machine mode. U-Boot
> +proper and OpenSBI (FW_DYNAMIC firmware) are bundled as FIT image and made
> +available to U-Boot SPL. Both are then loaded by U-Boot SPL and the location
> +of U-Boot proper is passed to OpenSBI. After initialization, U-Boot proper is
> +started in supervisor mode by OpenSBI.
> +
> +OpenSBI must be compiled before compiling U-Boot. Clone the OpenSBI repository
> +and run the following command.
> +
> +.. code-block:: console
> +
> + git clone https://github.com/riscv/opensbi.git
> + cd opensbi
> + make PLATFORM=qemu/virt
> +
> +See the OpenSBI documentation for full details:
> +https://github.com/riscv/opensbi/blob/master/docs/platform/qemu_virt.md
> +
> +To make the FW_DYNAMIC binary (build/platform/qemu/virt/firmware/fw_dynamic.bin)
> +available to U-Boot, either copy it into the U-Boot root directory or specify
> +its location with the OPENSBI environment variable. Afterwards, compile U-Boot
> +with the following commands.
> +
> +- For 32-bit RISC-V::
> +
> + make qemu-riscv32_spl_defconfig
> + make
> +
> +- For 64-bit RISC-V::
> +
> + make qemu-riscv64_spl_defconfig
> + make
> +
> +The minimal QEMU commands to run U-Boot SPL in both 32-bit and 64-bit
> +configurations are:
> +
> +- For 32-bit RISC-V::
> +
> + qemu-system-riscv32 -nographic -machine virt -kernel spl/u-boot-spl \
> + -device loader,file=u-boot.itb,addr=0x80200000
> +
> +- For 64-bit RISC-V::
> +
> + qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> + -device loader,file=u-boot.itb,addr=0x80200000
> --
> 2.21.0
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
` (10 preceding siblings ...)
2019-07-28 15:57 ` [U-Boot] [PATCH v2 11/11] doc: update QEMU RISC-V documentation Lukas Auer
@ 2019-07-29 8:44 ` Anup Patel
2019-07-29 15:52 ` Auer, Lukas
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA40F3AC4@ATCPCS16.andestech.com>
12 siblings, 1 reply; 33+ messages in thread
From: Anup Patel @ 2019-07-29 8:44 UTC (permalink / raw)
To: u-boot
On Sun, Jul 28, 2019 at 9:27 PM Lukas Auer
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> This series adds support for SPL to RISC-V U-Boot. Images can be booted
> via OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> former case, OpenSBI and U-Boot proper are bundled as a FIT image and
> made available to U-Boot SPL. Currently, only the QEMU board enables
> U-Boot SPL with a dedicated configuration. It uses RAM as SPL boot
> device.
>
> On many RISC-V CPUs, the device tree is provided to U-Boot by the
> first stage bootloader. This requires changes to U-Boot SPL (patches 1,
> 2 and 3), which modify the behavior on other boards as well.
>
> To test this series, OpenSBI has to be compiled first. The
> fw_dynamic.bin binary must be copied into the U-Boot root directory.
> Alternatively, the location of the binary can be specified with the
> OPENSBI environment variable. U-Boot can then be build as normal using
> the configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot
> FIT image (u-boot.itb) containing U-Boot proper and OpenSBI.
>
> U-Boot can be run in QEMU with the following command.
>
> qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> -device loader,file=u-boot.itb,addr=0x80200000
>
> Changes in v2:
> - Rebase on master and format documentation as reStructuredText
>
> Lukas Auer (11):
> fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
> Makefile: support building SPL FIT images without device trees
> spl: fit: use U-Boot device tree when FIT image has no device tree
> riscv: add run mode configuration for SPL
> spl: support booting via RISC-V OpenSBI
> riscv: add SPL support
> riscv: support SPL stack and global data relocation
> riscv: add a generic FIT generator script
> riscv: set default FIT generator script and build target for SPL
> builds
> riscv: qemu: add SPL configuration
> doc: update QEMU RISC-V documentation
>
> Kconfig | 4 +-
> Makefile | 8 +-
> arch/Kconfig | 6 ++
> arch/riscv/Kconfig | 36 +++++++--
> arch/riscv/cpu/ax25/Kconfig | 6 +-
> arch/riscv/cpu/cpu.c | 6 +-
> arch/riscv/cpu/generic/Kconfig | 5 +-
> arch/riscv/cpu/start.S | 62 ++++++++++++++-
> arch/riscv/cpu/u-boot-spl.lds | 82 +++++++++++++++++++
> arch/riscv/include/asm/encoding.h | 2 +-
> arch/riscv/include/asm/spl.h | 31 ++++++++
> arch/riscv/lib/Makefile | 8 +-
> arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++
> arch/riscv/lib/spl.c | 48 ++++++++++++
> board/emulation/qemu-riscv/Kconfig | 10 +++
> board/emulation/qemu-riscv/MAINTAINERS | 2 +
> board/emulation/qemu-riscv/qemu-riscv.c | 17 ++++
> common/image.c | 1 +
> common/spl/Kconfig | 17 ++++
> common/spl/Makefile | 1 +
> common/spl/spl.c | 8 +-
> common/spl/spl_fit.c | 37 ++++++---
> common/spl/spl_opensbi.c | 85 ++++++++++++++++++++
> configs/qemu-riscv32_spl_defconfig | 11 +++
> configs/qemu-riscv64_spl_defconfig | 12 +++
> doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++-
> include/configs/qemu-riscv.h | 14 ++++
> include/fdtdec.h | 2 +-
> include/image.h | 1 +
> include/opensbi.h | 40 ++++++++++
> include/spl.h | 5 ++
> lib/fdtdec.c | 6 +-
> 32 files changed, 691 insertions(+), 42 deletions(-)
> create mode 100644 arch/riscv/cpu/u-boot-spl.lds
> create mode 100644 arch/riscv/include/asm/spl.h
> create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh
> create mode 100644 arch/riscv/lib/spl.c
> create mode 100644 common/spl/spl_opensbi.c
> create mode 100644 configs/qemu-riscv32_spl_defconfig
> create mode 100644 configs/qemu-riscv64_spl_defconfig
> create mode 100644 include/opensbi.h
>
> --
> 2.21.0
>
Hi Lukas,
Amazing work !!!
Very nice and clean...
I will try to play around with it on QEMU.
Thanks & Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI
2019-07-29 8:32 ` Anup Patel
@ 2019-07-29 15:51 ` Auer, Lukas
2019-07-30 3:45 ` Anup Patel
0 siblings, 1 reply; 33+ messages in thread
From: Auer, Lukas @ 2019-07-29 15:51 UTC (permalink / raw)
To: u-boot
Hi Anup,
On Mon, 2019-07-29 at 14:02 +0530, Anup Patel wrote:
> On Sun, Jul 28, 2019 at 9:55 PM Lukas Auer
> <lukas.auer@aisec.fraunhofer.de> wrote:
> > RISC-V OpenSBI is an open-source implementation of the RISC-V Supervisor
> > Binary Interface (SBI) specification. It is required by Linux and U-Boot
> > running in supervisor mode. This patch adds support for booting via the
> > OpenSBI FW_DYNAMIC firmware.
> >
> > In this configuration, U-Boot SPL starts in machine mode. After loading
> > OpenSBI and U-Boot proper, it will start OpenSBI. All necessary
> > parameters are generated by U-Boot SPL and passed to OpenSBI. U-Boot
> > proper is started in supervisor mode by OpenSBI. Support for OpenSBI is
> > enabled with CONFIG_SPL_OPENSBI. An additional configuration entry,
> > CONFIG_SPL_OPENSBI_LOAD_ADDR, is used to specify the load address of the
> > OpenSBI firmware binary. It is not used directly in U-Boot and instead
> > is intended to make the value available to scripts such as FIT
> > configuration generators.
> >
> > The header file include/opensbi.h is based on header files from the
> > OpenSBI project. They are recent, as of commit bae54f764570 ("firmware:
> > Add fw_dynamic firmware").
>
> Instead of OpenSBI commit, may be mention that we need OpenSBI v0.4
> or higher.
>
If there are no other comments on the series I would prefer to keep the
commit message as is, if that is ok for you.
Adding the minimum OpenSBI version is a good idea, however. I can send
a follow-up patch to this series to add the minimum version to the QEMU
board documentation.
> > Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> > Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> > Tested-by: Bin Meng <bmeng.cn@gmail.com>
> > ---
> >
> > Changes in v2: None
> >
> > common/image.c | 1 +
> > common/spl/Kconfig | 17 ++++++++
> > common/spl/Makefile | 1 +
> > common/spl/spl.c | 6 +++
> > common/spl/spl_opensbi.c | 85 ++++++++++++++++++++++++++++++++++++++++
> > include/image.h | 1 +
> > include/opensbi.h | 40 +++++++++++++++++++
> > include/spl.h | 5 +++
> > 8 files changed, 156 insertions(+)
> > create mode 100644 common/spl/spl_opensbi.c
> > create mode 100644 include/opensbi.h
> >
> > diff --git a/common/image.c b/common/image.c
> > index 9f9538fac2..7c7353a989 100644
> > --- a/common/image.c
> > +++ b/common/image.c
> > @@ -125,6 +125,7 @@ static const table_entry_t uimage_os[] = {
> > #if defined(CONFIG_BOOTM_OPENRTOS) || defined(USE_HOSTCC)
> > { IH_OS_OPENRTOS, "openrtos", "OpenRTOS", },
> > #endif
> > + { IH_OS_OPENSBI, "opensbi", "RISC-V OpenSBI", },
> >
> > { -1, "", "", },
> > };
> > diff --git a/common/spl/Kconfig b/common/spl/Kconfig
> > index 5d6da5db89..939c8517cd 100644
> > --- a/common/spl/Kconfig
> > +++ b/common/spl/Kconfig
> > @@ -1126,6 +1126,23 @@ config SPL_OPTEE
> > OP-TEE is an open source Trusted OS which is loaded by SPL.
> > More detail at: https://github.com/OP-TEE/optee_os
> >
> > +config SPL_OPENSBI
> > + bool "Support RISC-V OpenSBI"
> > + depends on RISCV && SPL_RISCV_MMODE && RISCV_SMODE
> > + help
> > + OpenSBI is an open-source implementation of the RISC-V Supervisor Binary
> > + Interface (SBI) specification. U-Boot supports the OpenSBI FW_DYNAMIC
> > + firmware. It is loaded and started by U-Boot SPL.
> > +
> > + More details are available at https://github.com/riscv/opensbi and
> > + https://github.com/riscv/riscv-sbi-doc
> > +
> > +config SPL_OPENSBI_LOAD_ADDR
> > + hex "OpenSBI load address"
> > + depends on SPL_OPENSBI
> > + help
> > + Load address of the OpenSBI binary.
> > +
> > config TPL
> > bool
> > depends on SUPPORT_TPL
> > diff --git a/common/spl/Makefile b/common/spl/Makefile
> > index d28de692dd..5ce6f4ae48 100644
> > --- a/common/spl/Makefile
> > +++ b/common/spl/Makefile
> > @@ -22,6 +22,7 @@ obj-$(CONFIG_$(SPL_TPL_)NET_SUPPORT) += spl_net.o
> > obj-$(CONFIG_$(SPL_TPL_)MMC_SUPPORT) += spl_mmc.o
> > obj-$(CONFIG_$(SPL_TPL_)ATF) += spl_atf.o
> > obj-$(CONFIG_$(SPL_TPL_)OPTEE) += spl_optee.o
> > +obj-$(CONFIG_$(SPL_TPL_)OPENSBI) += spl_opensbi.o
> > obj-$(CONFIG_$(SPL_TPL_)USB_STORAGE) += spl_usb.o
> > obj-$(CONFIG_$(SPL_TPL_)FS_FAT) += spl_fat.o
> > obj-$(CONFIG_$(SPL_TPL_)FS_EXT4) += spl_ext.o
> > diff --git a/common/spl/spl.c b/common/spl/spl.c
> > index d5e3f680f4..1ed4741bdc 100644
> > --- a/common/spl/spl.c
> > +++ b/common/spl/spl.c
> > @@ -659,6 +659,12 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
> > (void *)spl_image.entry_point);
> > break;
> > #endif
> > +#if CONFIG_IS_ENABLED(OPENSBI)
>
> Should this be "CONFIG_IS_ENABLED(SPL_OPENSBI)" ?
>
> Am I missing something here ?
>
The CONFIG_IS_ENABLED(option) macro automatically handles the SPL_*
symbols. On SPL builds, it evaluates to one if CONFIG_SPL_option is
defined. On normal builds, it evaluates to one if CONFIG_option is
defined.
Thanks,
Lukas
> > + case IH_OS_OPENSBI:
> > + debug("Jumping to U-Boot via RISC-V OpenSBI\n");
> > + spl_invoke_opensbi(&spl_image);
> > + break;
> > +#endif
> > #ifdef CONFIG_SPL_OS_BOOT
> > case IH_OS_LINUX:
> > debug("Jumping to Linux\n");
> > diff --git a/common/spl/spl_opensbi.c b/common/spl/spl_opensbi.c
> > new file mode 100644
> > index 0000000000..a6b4480ed2
> > --- /dev/null
> > +++ b/common/spl/spl_opensbi.c
> > @@ -0,0 +1,85 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * Copyright (C) 2019 Fraunhofer AISEC,
> > + * Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> > + *
> > + * Based on common/spl/spl_atf.c
> > + */
> > +#include <common.h>
> > +#include <errno.h>
> > +#include <spl.h>
> > +#include <asm/smp.h>
> > +#include <opensbi.h>
> > +
> > +DECLARE_GLOBAL_DATA_PTR;
> > +
> > +struct fw_dynamic_info opensbi_info;
> > +
> > +static int spl_opensbi_find_uboot_node(void *blob, int *uboot_node)
> > +{
> > + int fit_images_node, node;
> > + const char *fit_os;
> > +
> > + fit_images_node = fdt_path_offset(blob, "/fit-images");
> > + if (fit_images_node < 0)
> > + return -ENODEV;
> > +
> > + fdt_for_each_subnode(node, blob, fit_images_node) {
> > + fit_os = fdt_getprop(blob, node, FIT_OS_PROP, NULL);
> > + if (!fit_os)
> > + continue;
> > +
> > + if (genimg_get_os_id(fit_os) == IH_OS_U_BOOT) {
> > + *uboot_node = node;
> > + return 0;
> > + }
> > + }
> > +
> > + return -ENODEV;
> > +}
> > +
> > +void spl_invoke_opensbi(struct spl_image_info *spl_image)
> > +{
> > + int ret, uboot_node;
> > + ulong uboot_entry;
> > + void (*opensbi_entry)(ulong hartid, ulong dtb, ulong info);
> > +
> > + if (!spl_image->fdt_addr) {
> > + pr_err("No device tree specified in SPL image\n");
> > + hang();
> > + }
> > +
> > + /* Find U-Boot image in /fit-images */
> > + ret = spl_opensbi_find_uboot_node(spl_image->fdt_addr, &uboot_node);
> > + if (ret) {
> > + pr_err("Can't find U-Boot node, %d", ret);
> > + hang();
> > + }
> > +
> > + /* Get U-Boot entry point */
> > + uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
> > + "entry-point");
> > + if (uboot_entry == FDT_ERROR)
> > + uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
> > + "load-addr");
> > +
> > + /* Prepare obensbi_info object */
> > + opensbi_info.magic = FW_DYNAMIC_INFO_MAGIC_VALUE;
> > + opensbi_info.version = FW_DYNAMIC_INFO_VERSION;
> > + opensbi_info.next_addr = uboot_entry;
> > + opensbi_info.next_mode = FW_DYNAMIC_INFO_NEXT_MODE_S;
> > + opensbi_info.options = SBI_SCRATCH_NO_BOOT_PRINTS;
> > +
> > + opensbi_entry = (void (*)(ulong, ulong, ulong))spl_image->entry_point;
> > + invalidate_icache_all();
> > +
> > +#ifdef CONFIG_SMP
> > + ret = smp_call_function((ulong)spl_image->entry_point,
> > + (ulong)spl_image->fdt_addr,
> > + (ulong)&opensbi_info);
> > + if (ret)
> > + hang();
> > +#endif
> > + opensbi_entry(gd->arch.boot_hart, (ulong)spl_image->fdt_addr,
> > + (ulong)&opensbi_info);
> > +}
> > diff --git a/include/image.h b/include/image.h
> > index 5f82194951..78a2dffe54 100644
> > --- a/include/image.h
> > +++ b/include/image.h
> > @@ -156,6 +156,7 @@ enum {
> > IH_OS_OPENRTOS, /* OpenRTOS */
> > IH_OS_ARM_TRUSTED_FIRMWARE, /* ARM Trusted Firmware */
> > IH_OS_TEE, /* Trusted Execution Environment */
> > + IH_OS_OPENSBI, /* RISC-V OpenSBI */
> >
> > IH_OS_COUNT,
> > };
> > diff --git a/include/opensbi.h b/include/opensbi.h
> > new file mode 100644
> > index 0000000000..9f1d62e7dd
> > --- /dev/null
> > +++ b/include/opensbi.h
> > @@ -0,0 +1,40 @@
> > +/* SPDX-License-Identifier: BSD-2-Clause */
> > +/*
> > + * Copyright (c) 2019 Western Digital Corporation or its affiliates.
> > + *
> > + * Based on include/sbi/{fw_dynamic.h,sbi_scratch.h} from the OpenSBI project.
> > + */
> > +#ifndef OPENSBI_H
> > +#define OPENSBI_H
> > +
> > +/** Expected value of info magic ('OSBI' ascii string in hex) */
> > +#define FW_DYNAMIC_INFO_MAGIC_VALUE 0x4942534f
> > +
> > +/** Maximum supported info version */
> > +#define FW_DYNAMIC_INFO_VERSION 0x1
> > +
> > +/** Possible next mode values */
> > +#define FW_DYNAMIC_INFO_NEXT_MODE_U 0x0
> > +#define FW_DYNAMIC_INFO_NEXT_MODE_S 0x1
> > +#define FW_DYNAMIC_INFO_NEXT_MODE_M 0x3
> > +
> > +enum sbi_scratch_options {
> > + /** Disable prints during boot */
> > + SBI_SCRATCH_NO_BOOT_PRINTS = (1 << 0),
> > +};
> > +
> > +/** Representation dynamic info passed by previous booting stage */
> > +struct fw_dynamic_info {
> > + /** Info magic */
> > + unsigned long magic;
> > + /** Info version */
> > + unsigned long version;
> > + /** Next booting stage address */
> > + unsigned long next_addr;
> > + /** Next booting stage mode */
> > + unsigned long next_mode;
> > + /** Options for OpenSBI library */
> > + unsigned long options;
> > +} __packed;
> > +
> > +#endif
> > diff --git a/include/spl.h b/include/spl.h
> > index a90f971a23..e4640f3830 100644
> > --- a/include/spl.h
> > +++ b/include/spl.h
> > @@ -374,6 +374,11 @@ void spl_invoke_atf(struct spl_image_info *spl_image);
> > */
> > void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
> >
> > +/**
> > + * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
> > + */
> > +void spl_invoke_opensbi(struct spl_image_info *spl_image);
> > +
> > /**
> > * board_return_to_bootrom - allow for boards to continue with the boot ROM
> > *
> > --
> > 2.21.0
> >
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > https://lists.denx.de/listinfo/u-boot
>
> Apart from minor queries/comments above, looks good to me.
>
> Reviewed-by: Anup Patel <anup.patel@wdc.com>
>
> Regards,
> Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-07-29 8:44 ` [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Anup Patel
@ 2019-07-29 15:52 ` Auer, Lukas
0 siblings, 0 replies; 33+ messages in thread
From: Auer, Lukas @ 2019-07-29 15:52 UTC (permalink / raw)
To: u-boot
Hi Anup,
On Mon, 2019-07-29 at 14:14 +0530, Anup Patel wrote:
> On Sun, Jul 28, 2019 at 9:27 PM Lukas Auer
> <lukas.auer@aisec.fraunhofer.de> wrote:
> > This series adds support for SPL to RISC-V U-Boot. Images can be booted
> > via OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > former case, OpenSBI and U-Boot proper are bundled as a FIT image and
> > made available to U-Boot SPL. Currently, only the QEMU board enables
> > U-Boot SPL with a dedicated configuration. It uses RAM as SPL boot
> > device.
> >
> > On many RISC-V CPUs, the device tree is provided to U-Boot by the
> > first stage bootloader. This requires changes to U-Boot SPL (patches 1,
> > 2 and 3), which modify the behavior on other boards as well.
> >
> > To test this series, OpenSBI has to be compiled first. The
> > fw_dynamic.bin binary must be copied into the U-Boot root directory.
> > Alternatively, the location of the binary can be specified with the
> > OPENSBI environment variable. U-Boot can then be build as normal using
> > the configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot
> > FIT image (u-boot.itb) containing U-Boot proper and OpenSBI.
> >
> > U-Boot can be run in QEMU with the following command.
> >
> > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > -device loader,file=u-boot.itb,addr=0x80200000
> >
> > Changes in v2:
> > - Rebase on master and format documentation as reStructuredText
> >
> > Lukas Auer (11):
> > fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
> > Makefile: support building SPL FIT images without device trees
> > spl: fit: use U-Boot device tree when FIT image has no device tree
> > riscv: add run mode configuration for SPL
> > spl: support booting via RISC-V OpenSBI
> > riscv: add SPL support
> > riscv: support SPL stack and global data relocation
> > riscv: add a generic FIT generator script
> > riscv: set default FIT generator script and build target for SPL
> > builds
> > riscv: qemu: add SPL configuration
> > doc: update QEMU RISC-V documentation
> >
> > Kconfig | 4 +-
> > Makefile | 8 +-
> > arch/Kconfig | 6 ++
> > arch/riscv/Kconfig | 36 +++++++--
> > arch/riscv/cpu/ax25/Kconfig | 6 +-
> > arch/riscv/cpu/cpu.c | 6 +-
> > arch/riscv/cpu/generic/Kconfig | 5 +-
> > arch/riscv/cpu/start.S | 62 ++++++++++++++-
> > arch/riscv/cpu/u-boot-spl.lds | 82 +++++++++++++++++++
> > arch/riscv/include/asm/encoding.h | 2 +-
> > arch/riscv/include/asm/spl.h | 31 ++++++++
> > arch/riscv/lib/Makefile | 8 +-
> > arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++
> > arch/riscv/lib/spl.c | 48 ++++++++++++
> > board/emulation/qemu-riscv/Kconfig | 10 +++
> > board/emulation/qemu-riscv/MAINTAINERS | 2 +
> > board/emulation/qemu-riscv/qemu-riscv.c | 17 ++++
> > common/image.c | 1 +
> > common/spl/Kconfig | 17 ++++
> > common/spl/Makefile | 1 +
> > common/spl/spl.c | 8 +-
> > common/spl/spl_fit.c | 37 ++++++---
> > common/spl/spl_opensbi.c | 85 ++++++++++++++++++++
> > configs/qemu-riscv32_spl_defconfig | 11 +++
> > configs/qemu-riscv64_spl_defconfig | 12 +++
> > doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++-
> > include/configs/qemu-riscv.h | 14 ++++
> > include/fdtdec.h | 2 +-
> > include/image.h | 1 +
> > include/opensbi.h | 40 ++++++++++
> > include/spl.h | 5 ++
> > lib/fdtdec.c | 6 +-
> > 32 files changed, 691 insertions(+), 42 deletions(-)
> > create mode 100644 arch/riscv/cpu/u-boot-spl.lds
> > create mode 100644 arch/riscv/include/asm/spl.h
> > create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh
> > create mode 100644 arch/riscv/lib/spl.c
> > create mode 100644 common/spl/spl_opensbi.c
> > create mode 100644 configs/qemu-riscv32_spl_defconfig
> > create mode 100644 configs/qemu-riscv64_spl_defconfig
> > create mode 100644 include/opensbi.h
> >
> > --
> > 2.21.0
> >
>
> Hi Lukas,
>
> Amazing work !!!
> Very nice and clean...
>
> I will try to play around with it on QEMU.
>
Thanks! And thank you for the review.
Regards,
Lukas
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI
2019-07-29 15:51 ` Auer, Lukas
@ 2019-07-30 3:45 ` Anup Patel
0 siblings, 0 replies; 33+ messages in thread
From: Anup Patel @ 2019-07-30 3:45 UTC (permalink / raw)
To: u-boot
On Mon, Jul 29, 2019 at 9:21 PM Auer, Lukas
<lukas.auer@aisec.fraunhofer.de> wrote:
>
> Hi Anup,
>
> On Mon, 2019-07-29 at 14:02 +0530, Anup Patel wrote:
> > On Sun, Jul 28, 2019 at 9:55 PM Lukas Auer
> > <lukas.auer@aisec.fraunhofer.de> wrote:
> > > RISC-V OpenSBI is an open-source implementation of the RISC-V Supervisor
> > > Binary Interface (SBI) specification. It is required by Linux and U-Boot
> > > running in supervisor mode. This patch adds support for booting via the
> > > OpenSBI FW_DYNAMIC firmware.
> > >
> > > In this configuration, U-Boot SPL starts in machine mode. After loading
> > > OpenSBI and U-Boot proper, it will start OpenSBI. All necessary
> > > parameters are generated by U-Boot SPL and passed to OpenSBI. U-Boot
> > > proper is started in supervisor mode by OpenSBI. Support for OpenSBI is
> > > enabled with CONFIG_SPL_OPENSBI. An additional configuration entry,
> > > CONFIG_SPL_OPENSBI_LOAD_ADDR, is used to specify the load address of the
> > > OpenSBI firmware binary. It is not used directly in U-Boot and instead
> > > is intended to make the value available to scripts such as FIT
> > > configuration generators.
> > >
> > > The header file include/opensbi.h is based on header files from the
> > > OpenSBI project. They are recent, as of commit bae54f764570 ("firmware:
> > > Add fw_dynamic firmware").
> >
> > Instead of OpenSBI commit, may be mention that we need OpenSBI v0.4
> > or higher.
> >
>
> If there are no other comments on the series I would prefer to keep the
> commit message as is, if that is ok for you.
> Adding the minimum OpenSBI version is a good idea, however. I can send
> a follow-up patch to this series to add the minimum version to the QEMU
> board documentation.
Sure, please have a separate patch for minimum OpenSBI version. Maybe
you can just update QEMU RISC-V documentation.
>
> > > Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> > > Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> > > Tested-by: Bin Meng <bmeng.cn@gmail.com>
> > > ---
> > >
> > > Changes in v2: None
> > >
> > > common/image.c | 1 +
> > > common/spl/Kconfig | 17 ++++++++
> > > common/spl/Makefile | 1 +
> > > common/spl/spl.c | 6 +++
> > > common/spl/spl_opensbi.c | 85 ++++++++++++++++++++++++++++++++++++++++
> > > include/image.h | 1 +
> > > include/opensbi.h | 40 +++++++++++++++++++
> > > include/spl.h | 5 +++
> > > 8 files changed, 156 insertions(+)
> > > create mode 100644 common/spl/spl_opensbi.c
> > > create mode 100644 include/opensbi.h
> > >
> > > diff --git a/common/image.c b/common/image.c
> > > index 9f9538fac2..7c7353a989 100644
> > > --- a/common/image.c
> > > +++ b/common/image.c
> > > @@ -125,6 +125,7 @@ static const table_entry_t uimage_os[] = {
> > > #if defined(CONFIG_BOOTM_OPENRTOS) || defined(USE_HOSTCC)
> > > { IH_OS_OPENRTOS, "openrtos", "OpenRTOS", },
> > > #endif
> > > + { IH_OS_OPENSBI, "opensbi", "RISC-V OpenSBI", },
> > >
> > > { -1, "", "", },
> > > };
> > > diff --git a/common/spl/Kconfig b/common/spl/Kconfig
> > > index 5d6da5db89..939c8517cd 100644
> > > --- a/common/spl/Kconfig
> > > +++ b/common/spl/Kconfig
> > > @@ -1126,6 +1126,23 @@ config SPL_OPTEE
> > > OP-TEE is an open source Trusted OS which is loaded by SPL.
> > > More detail at: https://github.com/OP-TEE/optee_os
> > >
> > > +config SPL_OPENSBI
> > > + bool "Support RISC-V OpenSBI"
> > > + depends on RISCV && SPL_RISCV_MMODE && RISCV_SMODE
> > > + help
> > > + OpenSBI is an open-source implementation of the RISC-V Supervisor Binary
> > > + Interface (SBI) specification. U-Boot supports the OpenSBI FW_DYNAMIC
> > > + firmware. It is loaded and started by U-Boot SPL.
> > > +
> > > + More details are available at https://github.com/riscv/opensbi and
> > > + https://github.com/riscv/riscv-sbi-doc
> > > +
> > > +config SPL_OPENSBI_LOAD_ADDR
> > > + hex "OpenSBI load address"
> > > + depends on SPL_OPENSBI
> > > + help
> > > + Load address of the OpenSBI binary.
> > > +
> > > config TPL
> > > bool
> > > depends on SUPPORT_TPL
> > > diff --git a/common/spl/Makefile b/common/spl/Makefile
> > > index d28de692dd..5ce6f4ae48 100644
> > > --- a/common/spl/Makefile
> > > +++ b/common/spl/Makefile
> > > @@ -22,6 +22,7 @@ obj-$(CONFIG_$(SPL_TPL_)NET_SUPPORT) += spl_net.o
> > > obj-$(CONFIG_$(SPL_TPL_)MMC_SUPPORT) += spl_mmc.o
> > > obj-$(CONFIG_$(SPL_TPL_)ATF) += spl_atf.o
> > > obj-$(CONFIG_$(SPL_TPL_)OPTEE) += spl_optee.o
> > > +obj-$(CONFIG_$(SPL_TPL_)OPENSBI) += spl_opensbi.o
> > > obj-$(CONFIG_$(SPL_TPL_)USB_STORAGE) += spl_usb.o
> > > obj-$(CONFIG_$(SPL_TPL_)FS_FAT) += spl_fat.o
> > > obj-$(CONFIG_$(SPL_TPL_)FS_EXT4) += spl_ext.o
> > > diff --git a/common/spl/spl.c b/common/spl/spl.c
> > > index d5e3f680f4..1ed4741bdc 100644
> > > --- a/common/spl/spl.c
> > > +++ b/common/spl/spl.c
> > > @@ -659,6 +659,12 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
> > > (void *)spl_image.entry_point);
> > > break;
> > > #endif
> > > +#if CONFIG_IS_ENABLED(OPENSBI)
> >
> > Should this be "CONFIG_IS_ENABLED(SPL_OPENSBI)" ?
> >
> > Am I missing something here ?
> >
>
> The CONFIG_IS_ENABLED(option) macro automatically handles the SPL_*
> symbols. On SPL builds, it evaluates to one if CONFIG_SPL_option is
> defined. On normal builds, it evaluates to one if CONFIG_option is
> defined.
Ahh, got it.
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA40F3AC4@ATCPCS16.andestech.com>
@ 2019-08-01 3:32 ` Rick Chen
2019-08-01 13:51 ` Auer, Lukas
0 siblings, 1 reply; 33+ messages in thread
From: Rick Chen @ 2019-08-01 3:32 UTC (permalink / raw)
To: u-boot
Hi Lukas
> > From: Lukas Auer [mailto:lukas.auer at aisec.fraunhofer.de]
> > Sent: Sunday, July 28, 2019 11:57 PM
> > To: u-boot at lists.denx.de
> > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair
> > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan;
> > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup
> > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko Schocher;
> > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe
> > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek
> > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng
> > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass;
> > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R;
> > Weijie Gao; Ye Li
> > Subject: [PATCH v2 00/11] SPL support for RISC-V
> >
> > This series adds support for SPL to RISC-V U-Boot. Images can be booted via
> > OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > former case, OpenSBI and U-Boot proper are bundled as a FIT image and made
> > available to U-Boot SPL. Currently, only the QEMU board enables U-Boot SPL
> > with a dedicated configuration. It uses RAM as SPL boot device.
> >
> > On many RISC-V CPUs, the device tree is provided to U-Boot by the first stage
> > bootloader. This requires changes to U-Boot SPL (patches 1,
> > 2 and 3), which modify the behavior on other boards as well.
> >
> > To test this series, OpenSBI has to be compiled first. The fw_dynamic.bin
> > binary must be copied into the U-Boot root directory.
> > Alternatively, the location of the binary can be specified with the OPENSBI
> > environment variable. U-Boot can then be build as normal using the
> > configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot FIT
> > image (u-boot.itb) containing U-Boot proper and OpenSBI.
> >
> > U-Boot can be run in QEMU with the following command.
> >
> > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > -device loader,file=u-boot.itb,addr=0x80200000
> >
Great job !
I also try to run the spl flow on ax25-ae350 platform.
But encounter some problems. I am still debugging.
Following is the error message:
:
U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
Trying to boot from RAM
U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe
### ERROR ### Please RESET the board ###
Do you have some comments ?
By the way, please rebase u-boot-riscv/master to avoid some
conflictions from Bin's patchs.
Thanks
Rick
> > Changes in v2:
> > - Rebase on master and format documentation as reStructuredText
> >
> > Lukas Auer (11):
> > fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
> > Makefile: support building SPL FIT images without device trees
> > spl: fit: use U-Boot device tree when FIT image has no device tree
> > riscv: add run mode configuration for SPL
> > spl: support booting via RISC-V OpenSBI
> > riscv: add SPL support
> > riscv: support SPL stack and global data relocation
> > riscv: add a generic FIT generator script
> > riscv: set default FIT generator script and build target for SPL
> > builds
> > riscv: qemu: add SPL configuration
> > doc: update QEMU RISC-V documentation
> >
> > Kconfig | 4 +-
> > Makefile | 8 +-
> > arch/Kconfig | 6 ++
> > arch/riscv/Kconfig | 36 +++++++--
> > arch/riscv/cpu/ax25/Kconfig | 6 +-
> > arch/riscv/cpu/cpu.c | 6 +-
> > arch/riscv/cpu/generic/Kconfig | 5 +-
> > arch/riscv/cpu/start.S | 62 ++++++++++++++-
> > arch/riscv/cpu/u-boot-spl.lds | 82 +++++++++++++++++++
> > arch/riscv/include/asm/encoding.h | 2 +-
> > arch/riscv/include/asm/spl.h | 31 ++++++++
> > arch/riscv/lib/Makefile | 8 +-
> > arch/riscv/lib/mkimage_fit_opensbi.sh | 100
> > ++++++++++++++++++++++++
> > arch/riscv/lib/spl.c | 48 ++++++++++++
> > board/emulation/qemu-riscv/Kconfig | 10 +++
> > board/emulation/qemu-riscv/MAINTAINERS | 2 +
> > board/emulation/qemu-riscv/qemu-riscv.c | 17 ++++
> > common/image.c | 1 +
> > common/spl/Kconfig | 17 ++++
> > common/spl/Makefile | 1 +
> > common/spl/spl.c | 8 +-
> > common/spl/spl_fit.c | 37 ++++++---
> > common/spl/spl_opensbi.c | 85
> > ++++++++++++++++++++
> > configs/qemu-riscv32_spl_defconfig | 11 +++
> > configs/qemu-riscv64_spl_defconfig | 12 +++
> > doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++-
> > include/configs/qemu-riscv.h | 14 ++++
> > include/fdtdec.h | 2 +-
> > include/image.h | 1 +
> > include/opensbi.h | 40 ++++++++++
> > include/spl.h | 5 ++
> > lib/fdtdec.c | 6 +-
> > 32 files changed, 691 insertions(+), 42 deletions(-) create mode 100644
> > arch/riscv/cpu/u-boot-spl.lds create mode 100644
> > arch/riscv/include/asm/spl.h create mode 100755
> > arch/riscv/lib/mkimage_fit_opensbi.sh
> > create mode 100644 arch/riscv/lib/spl.c create mode 100644
> > common/spl/spl_opensbi.c create mode 100644
> > configs/qemu-riscv32_spl_defconfig
> > create mode 100644 configs/qemu-riscv64_spl_defconfig
> > create mode 100644 include/opensbi.h
> >
> > --
> > 2.21.0
>
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-08-01 3:32 ` Rick Chen
@ 2019-08-01 13:51 ` Auer, Lukas
2019-08-02 8:41 ` Rick Chen
0 siblings, 1 reply; 33+ messages in thread
From: Auer, Lukas @ 2019-08-01 13:51 UTC (permalink / raw)
To: u-boot
Hi Rick,
On Thu, 2019-08-01 at 11:32 +0800, Rick Chen wrote:
> Hi Lukas
>
> > > From: Lukas Auer [mailto:lukas.auer at aisec.fraunhofer.de]
> > > Sent: Sunday, July 28, 2019 11:57 PM
> > > To: u-boot at lists.denx.de
> > > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair
> > > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan;
> > > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup
> > > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko Schocher;
> > > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe
> > > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek
> > > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng
> > > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass;
> > > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R;
> > > Weijie Gao; Ye Li
> > > Subject: [PATCH v2 00/11] SPL support for RISC-V
> > >
> > > This series adds support for SPL to RISC-V U-Boot. Images can be booted via
> > > OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > > former case, OpenSBI and U-Boot proper are bundled as a FIT image and made
> > > available to U-Boot SPL. Currently, only the QEMU board enables U-Boot SPL
> > > with a dedicated configuration. It uses RAM as SPL boot device.
> > >
> > > On many RISC-V CPUs, the device tree is provided to U-Boot by the first stage
> > > bootloader. This requires changes to U-Boot SPL (patches 1,
> > > 2 and 3), which modify the behavior on other boards as well.
> > >
> > > To test this series, OpenSBI has to be compiled first. The fw_dynamic.bin
> > > binary must be copied into the U-Boot root directory.
> > > Alternatively, the location of the binary can be specified with the OPENSBI
> > > environment variable. U-Boot can then be build as normal using the
> > > configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot FIT
> > > image (u-boot.itb) containing U-Boot proper and OpenSBI.
> > >
> > > U-Boot can be run in QEMU with the following command.
> > >
> > > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > > -device loader,file=u-boot.itb,addr=0x80200000
> > >
>
> Great job !
>
Thank you!
> I also try to run the spl flow on ax25-ae350 platform.
> But encounter some problems. I am still debugging.
>
> Following is the error message:
> :
> U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> Trying to boot from RAM
>
> U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
>
> DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe
> ### ERROR ### Please RESET the board ###
>
> Do you have some comments ?
>
It is difficult to judge without the exact configuration. Is your
current git tree available somewhere?
The error is quite strange, because it already booted U-Boot proper. So
the error does not happen in code, which has been directly modified by
this series. Perhaps it is trying to initialize something twice (once
in SPL and again in U-Boot proper)? Can you check at what location the
error occurs?
> By the way, please rebase u-boot-riscv/master to avoid some
> conflictions from Bin's patchs.
>
Yes, I will do that.
Thanks,
Lukas
> Thanks
> Rick
>
>
> > > Changes in v2:
> > > - Rebase on master and format documentation as reStructuredText
> > >
> > > Lukas Auer (11):
> > > fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL
> > > Makefile: support building SPL FIT images without device trees
> > > spl: fit: use U-Boot device tree when FIT image has no device tree
> > > riscv: add run mode configuration for SPL
> > > spl: support booting via RISC-V OpenSBI
> > > riscv: add SPL support
> > > riscv: support SPL stack and global data relocation
> > > riscv: add a generic FIT generator script
> > > riscv: set default FIT generator script and build target for SPL
> > > builds
> > > riscv: qemu: add SPL configuration
> > > doc: update QEMU RISC-V documentation
> > >
> > > Kconfig | 4 +-
> > > Makefile | 8 +-
> > > arch/Kconfig | 6 ++
> > > arch/riscv/Kconfig | 36 +++++++--
> > > arch/riscv/cpu/ax25/Kconfig | 6 +-
> > > arch/riscv/cpu/cpu.c | 6 +-
> > > arch/riscv/cpu/generic/Kconfig | 5 +-
> > > arch/riscv/cpu/start.S | 62 ++++++++++++++-
> > > arch/riscv/cpu/u-boot-spl.lds | 82 +++++++++++++++++++
> > > arch/riscv/include/asm/encoding.h | 2 +-
> > > arch/riscv/include/asm/spl.h | 31 ++++++++
> > > arch/riscv/lib/Makefile | 8 +-
> > > arch/riscv/lib/mkimage_fit_opensbi.sh | 100
> > > ++++++++++++++++++++++++
> > > arch/riscv/lib/spl.c | 48 ++++++++++++
> > > board/emulation/qemu-riscv/Kconfig | 10 +++
> > > board/emulation/qemu-riscv/MAINTAINERS | 2 +
> > > board/emulation/qemu-riscv/qemu-riscv.c | 17 ++++
> > > common/image.c | 1 +
> > > common/spl/Kconfig | 17 ++++
> > > common/spl/Makefile | 1 +
> > > common/spl/spl.c | 8 +-
> > > common/spl/spl_fit.c | 37 ++++++---
> > > common/spl/spl_opensbi.c | 85
> > > ++++++++++++++++++++
> > > configs/qemu-riscv32_spl_defconfig | 11 +++
> > > configs/qemu-riscv64_spl_defconfig | 12 +++
> > > doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++-
> > > include/configs/qemu-riscv.h | 14 ++++
> > > include/fdtdec.h | 2 +-
> > > include/image.h | 1 +
> > > include/opensbi.h | 40 ++++++++++
> > > include/spl.h | 5 ++
> > > lib/fdtdec.c | 6 +-
> > > 32 files changed, 691 insertions(+), 42 deletions(-) create mode 100644
> > > arch/riscv/cpu/u-boot-spl.lds create mode 100644
> > > arch/riscv/include/asm/spl.h create mode 100755
> > > arch/riscv/lib/mkimage_fit_opensbi.sh
> > > create mode 100644 arch/riscv/lib/spl.c create mode 100644
> > > common/spl/spl_opensbi.c create mode 100644
> > > configs/qemu-riscv32_spl_defconfig
> > > create mode 100644 configs/qemu-riscv64_spl_defconfig
> > > create mode 100644 include/opensbi.h
> > >
> > > --
> > > 2.21.0
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-08-01 13:51 ` Auer, Lukas
@ 2019-08-02 8:41 ` Rick Chen
2019-08-02 8:48 ` Anup Patel
0 siblings, 1 reply; 33+ messages in thread
From: Rick Chen @ 2019-08-02 8:41 UTC (permalink / raw)
To: u-boot
Hi Lukas
>
> Hi Rick,
>
> On Thu, 2019-08-01 at 11:32 +0800, Rick Chen wrote:
> > Hi Lukas
> >
> > > > From: Lukas Auer [mailto:lukas.auer at aisec.fraunhofer.de]
> > > > Sent: Sunday, July 28, 2019 11:57 PM
> > > > To: u-boot at lists.denx.de
> > > > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair
> > > > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan;
> > > > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup
> > > > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko Schocher;
> > > > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe
> > > > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek
> > > > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng
> > > > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass;
> > > > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R;
> > > > Weijie Gao; Ye Li
> > > > Subject: [PATCH v2 00/11] SPL support for RISC-V
> > > >
> > > > This series adds support for SPL to RISC-V U-Boot. Images can be booted via
> > > > OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > > > former case, OpenSBI and U-Boot proper are bundled as a FIT image and made
> > > > available to U-Boot SPL. Currently, only the QEMU board enables U-Boot SPL
> > > > with a dedicated configuration. It uses RAM as SPL boot device.
> > > >
> > > > On many RISC-V CPUs, the device tree is provided to U-Boot by the first stage
> > > > bootloader. This requires changes to U-Boot SPL (patches 1,
> > > > 2 and 3), which modify the behavior on other boards as well.
> > > >
> > > > To test this series, OpenSBI has to be compiled first. The fw_dynamic.bin
> > > > binary must be copied into the U-Boot root directory.
> > > > Alternatively, the location of the binary can be specified with the OPENSBI
> > > > environment variable. U-Boot can then be build as normal using the
> > > > configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > > > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > > > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot FIT
> > > > image (u-boot.itb) containing U-Boot proper and OpenSBI.
> > > >
> > > > U-Boot can be run in QEMU with the following command.
> > > >
> > > > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > > > -device loader,file=u-boot.itb,addr=0x80200000
> > > >
> >
> > Great job !
> >
>
> Thank you!
>
> > I also try to run the spl flow on ax25-ae350 platform.
> > But encounter some problems. I am still debugging.
> >
> > Following is the error message:
> > :
> > U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > Trying to boot from RAM
> >
> > U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> >
> > DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe
> > ### ERROR ### Please RESET the board ###
> >
> > Do you have some comments ?
> >
>
> It is difficult to judge without the exact configuration. Is your
> current git tree available somewhere?
No, it is not available yet.
And you don't have the ax25-ae350 board, it is still in vain if the
git tree is available.
>
> The error is quite strange, because it already booted U-Boot proper. So
> the error does not happen in code, which has been directly modified by
> this series. Perhaps it is trying to initialize something twice (once
> in SPL and again in U-Boot proper)? Can you check at what location the
> error occurs?
I found that the exception occurred in get_ram_size() of ax25-ae350.c
when it try to load the memory address 0x10000.
But the access of 0x20000 is ok.
I try to mark the get_ram_size() and do not execute it, U-Boot proper
can boot successfully as below:
U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
Trying to boot from RAM
U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
DRAM: 1 GiB
Flash: 64 MiB
MMC: mmc at f0e00000: 0
Loading Environment from SPI Flash... SF: Detected mx25u1635e with
page size 256 Bytes, erase size 4 KiB, total 2 MiB
*** Warning - bad CRC, using default environment
In: serial at f0300000
Out: serial at f0300000
Err: serial at f0300000
Net: no alias for ethernet0
Warning: mac at e0100000 (eth0) using random MAC address - 36:13:4d:06:b8:fd
eth0: mac at e0100000
Hit any key to stop autoboot: 0
RISC-V #
So I tried to trace openSBI and found the BANNER of openSBI was not printed.
Is it correct ?
Any idea about why the access of memory address(0x10000) will fail ?
I guess it seem relative to pmp configuration.
I am still tracing it ...
Thanks
Rick
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-08-02 8:41 ` Rick Chen
@ 2019-08-02 8:48 ` Anup Patel
2019-08-02 10:25 ` Auer, Lukas
0 siblings, 1 reply; 33+ messages in thread
From: Anup Patel @ 2019-08-02 8:48 UTC (permalink / raw)
To: u-boot
On Fri, Aug 2, 2019 at 2:11 PM Rick Chen <rickchen36@gmail.com> wrote:
>
> Hi Lukas
>
> >
> > Hi Rick,
> >
> > On Thu, 2019-08-01 at 11:32 +0800, Rick Chen wrote:
> > > Hi Lukas
> > >
> > > > > From: Lukas Auer [mailto:lukas.auer at aisec.fraunhofer.de]
> > > > > Sent: Sunday, July 28, 2019 11:57 PM
> > > > > To: u-boot at lists.denx.de
> > > > > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair
> > > > > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan;
> > > > > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup
> > > > > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko Schocher;
> > > > > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe
> > > > > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek
> > > > > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng
> > > > > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass;
> > > > > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R;
> > > > > Weijie Gao; Ye Li
> > > > > Subject: [PATCH v2 00/11] SPL support for RISC-V
> > > > >
> > > > > This series adds support for SPL to RISC-V U-Boot. Images can be booted via
> > > > > OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > > > > former case, OpenSBI and U-Boot proper are bundled as a FIT image and made
> > > > > available to U-Boot SPL. Currently, only the QEMU board enables U-Boot SPL
> > > > > with a dedicated configuration. It uses RAM as SPL boot device.
> > > > >
> > > > > On many RISC-V CPUs, the device tree is provided to U-Boot by the first stage
> > > > > bootloader. This requires changes to U-Boot SPL (patches 1,
> > > > > 2 and 3), which modify the behavior on other boards as well.
> > > > >
> > > > > To test this series, OpenSBI has to be compiled first. The fw_dynamic.bin
> > > > > binary must be copied into the U-Boot root directory.
> > > > > Alternatively, the location of the binary can be specified with the OPENSBI
> > > > > environment variable. U-Boot can then be build as normal using the
> > > > > configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > > > > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > > > > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot FIT
> > > > > image (u-boot.itb) containing U-Boot proper and OpenSBI.
> > > > >
> > > > > U-Boot can be run in QEMU with the following command.
> > > > >
> > > > > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > > > > -device loader,file=u-boot.itb,addr=0x80200000
> > > > >
> > >
> > > Great job !
> > >
> >
> > Thank you!
> >
> > > I also try to run the spl flow on ax25-ae350 platform.
> > > But encounter some problems. I am still debugging.
> > >
> > > Following is the error message:
> > > :
> > > U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > > Trying to boot from RAM
> > >
> > > U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > >
> > > DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe
> > > ### ERROR ### Please RESET the board ###
> > >
> > > Do you have some comments ?
> > >
> >
> > It is difficult to judge without the exact configuration. Is your
> > current git tree available somewhere?
>
> No, it is not available yet.
> And you don't have the ax25-ae350 board, it is still in vain if the
> git tree is available.
>
> >
> > The error is quite strange, because it already booted U-Boot proper. So
> > the error does not happen in code, which has been directly modified by
> > this series. Perhaps it is trying to initialize something twice (once
> > in SPL and again in U-Boot proper)? Can you check at what location the
> > error occurs?
>
> I found that the exception occurred in get_ram_size() of ax25-ae350.c
> when it try to load the memory address 0x10000.
> But the access of 0x20000 is ok.
>
> I try to mark the get_ram_size() and do not execute it, U-Boot proper
> can boot successfully as below:
>
> U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
> Trying to boot from RAM
>
> U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
> DRAM: 1 GiB
> Flash: 64 MiB
> MMC: mmc at f0e00000: 0
> Loading Environment from SPI Flash... SF: Detected mx25u1635e with
> page size 256 Bytes, erase size 4 KiB, total 2 MiB
> *** Warning - bad CRC, using default environment
> In: serial at f0300000
> Out: serial at f0300000
> Err: serial at f0300000
> Net: no alias for ethernet0
> Warning: mac at e0100000 (eth0) using random MAC address - 36:13:4d:06:b8:fd
> eth0: mac at e0100000
> Hit any key to stop autoboot: 0
> RISC-V #
>
> So I tried to trace openSBI and found the BANNER of openSBI was not printed.
> Is it correct ?
Yes, U-Boot SPL is passing SBI_SCRATCH_NO_BOOT_PRINTS option to
OpenSBI due to which you don't see any prints. Although, error prints from
OpenSBI will be still available.
>
> Any idea about why the access of memory address(0x10000) will fail ?
> I guess it seem relative to pmp configuration.
If it is PMP access checks then you should get ACCESS faults error
prints from OpenSBI.
Regards,
Anup
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-08-02 8:48 ` Anup Patel
@ 2019-08-02 10:25 ` Auer, Lukas
2019-08-08 9:49 ` Rick Chen
0 siblings, 1 reply; 33+ messages in thread
From: Auer, Lukas @ 2019-08-02 10:25 UTC (permalink / raw)
To: u-boot
Hi Rick,
On Fri, 2019-08-02 at 14:18 +0530, Anup Patel wrote:
> On Fri, Aug 2, 2019 at 2:11 PM Rick Chen <rickchen36@gmail.com> wrote:
> > Hi Lukas
> >
> > > Hi Rick,
> > >
> > > On Thu, 2019-08-01 at 11:32 +0800, Rick Chen wrote:
> > > > Hi Lukas
> > > >
> > > > > > From: Lukas Auer [mailto:lukas.auer at aisec.fraunhofer.de]
> > > > > > Sent: Sunday, July 28, 2019 11:57 PM
> > > > > > To: u-boot at lists.denx.de
> > > > > > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair
> > > > > > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan;
> > > > > > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup
> > > > > > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko Schocher;
> > > > > > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe
> > > > > > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek
> > > > > > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng
> > > > > > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass;
> > > > > > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R;
> > > > > > Weijie Gao; Ye Li
> > > > > > Subject: [PATCH v2 00/11] SPL support for RISC-V
> > > > > >
> > > > > > This series adds support for SPL to RISC-V U-Boot. Images can be booted via
> > > > > > OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > > > > > former case, OpenSBI and U-Boot proper are bundled as a FIT image and made
> > > > > > available to U-Boot SPL. Currently, only the QEMU board enables U-Boot SPL
> > > > > > with a dedicated configuration. It uses RAM as SPL boot device.
> > > > > >
> > > > > > On many RISC-V CPUs, the device tree is provided to U-Boot by the first stage
> > > > > > bootloader. This requires changes to U-Boot SPL (patches 1,
> > > > > > 2 and 3), which modify the behavior on other boards as well.
> > > > > >
> > > > > > To test this series, OpenSBI has to be compiled first. The fw_dynamic.bin
> > > > > > binary must be copied into the U-Boot root directory.
> > > > > > Alternatively, the location of the binary can be specified with the OPENSBI
> > > > > > environment variable. U-Boot can then be build as normal using the
> > > > > > configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > > > > > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > > > > > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot FIT
> > > > > > image (u-boot.itb) containing U-Boot proper and OpenSBI.
> > > > > >
> > > > > > U-Boot can be run in QEMU with the following command.
> > > > > >
> > > > > > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > > > > > -device loader,file=u-boot.itb,addr=0x80200000
> > > > > >
> > > >
> > > > Great job !
> > > >
> > >
> > > Thank you!
> > >
> > > > I also try to run the spl flow on ax25-ae350 platform.
> > > > But encounter some problems. I am still debugging.
> > > >
> > > > Following is the error message:
> > > > :
> > > > U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > > > Trying to boot from RAM
> > > >
> > > > U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > > >
> > > > DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe
> > > > ### ERROR ### Please RESET the board ###
> > > >
> > > > Do you have some comments ?
> > > >
> > >
> > > It is difficult to judge without the exact configuration. Is your
> > > current git tree available somewhere?
> >
> > No, it is not available yet.
> > And you don't have the ax25-ae350 board, it is still in vain if the
> > git tree is available.
> >
> > > The error is quite strange, because it already booted U-Boot proper. So
> > > the error does not happen in code, which has been directly modified by
> > > this series. Perhaps it is trying to initialize something twice (once
> > > in SPL and again in U-Boot proper)? Can you check at what location the
> > > error occurs?
> >
> > I found that the exception occurred in get_ram_size() of ax25-ae350.c
> > when it try to load the memory address 0x10000.
> > But the access of 0x20000 is ok.
> >
> > I try to mark the get_ram_size() and do not execute it, U-Boot proper
> > can boot successfully as below:
> >
> > U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
> > Trying to boot from RAM
> >
> > U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
> > DRAM: 1 GiB
> > Flash: 64 MiB
> > MMC: mmc at f0e00000: 0
> > Loading Environment from SPI Flash... SF: Detected mx25u1635e with
> > page size 256 Bytes, erase size 4 KiB, total 2 MiB
> > *** Warning - bad CRC, using default environment
> > In: serial at f0300000
> > Out: serial at f0300000
> > Err: serial at f0300000
> > Net: no alias for ethernet0
> > Warning: mac at e0100000 (eth0) using random MAC address - 36:13:4d:06:b8:fd
> > eth0: mac at e0100000
> > Hit any key to stop autoboot: 0
> > RISC-V #
> >
> > So I tried to trace openSBI and found the BANNER of openSBI was not printed.
> > Is it correct ?
>
> Yes, U-Boot SPL is passing SBI_SCRATCH_NO_BOOT_PRINTS option to
> OpenSBI due to which you don't see any prints. Although, error prints from
> OpenSBI will be still available.
>
If you want to enable the OpenSBI banner, you can remove the option in
common/spl/spl_opensbi.c.
> > Any idea about why the access of memory address(0x10000) will fail ?
> > I guess it seem relative to pmp configuration.
>
> If it is PMP access checks then you should get ACCESS faults error
> prints from OpenSBI.
>
The access violation you are seeing is strange and I am not sure why
OpenSBI does not print any errors. It does seem like a problem with the
PMP configuration though.
Thanks,
Lukas
^ permalink raw reply [flat|nested] 33+ messages in thread
* [U-Boot] [PATCH v2 00/11] SPL support for RISC-V
2019-08-02 10:25 ` Auer, Lukas
@ 2019-08-08 9:49 ` Rick Chen
0 siblings, 0 replies; 33+ messages in thread
From: Rick Chen @ 2019-08-08 9:49 UTC (permalink / raw)
To: u-boot
Hi Lukas and Anup
>
> Hi Rick,
>
> On Fri, 2019-08-02 at 14:18 +0530, Anup Patel wrote:
> > On Fri, Aug 2, 2019 at 2:11 PM Rick Chen <rickchen36@gmail.com> wrote:
> > > Hi Lukas
> > >
> > > > Hi Rick,
> > > >
> > > > On Thu, 2019-08-01 at 11:32 +0800, Rick Chen wrote:
> > > > > Hi Lukas
> > > > >
> > > > > > > From: Lukas Auer [mailto:lukas.auer at aisec.fraunhofer.de]
> > > > > > > Sent: Sunday, July 28, 2019 11:57 PM
> > > > > > > To: u-boot at lists.denx.de
> > > > > > > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair
> > > > > > > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan;
> > > > > > > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup
> > > > > > > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko Schocher;
> > > > > > > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe
> > > > > > > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek
> > > > > > > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng
> > > > > > > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass;
> > > > > > > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R;
> > > > > > > Weijie Gao; Ye Li
> > > > > > > Subject: [PATCH v2 00/11] SPL support for RISC-V
> > > > > > >
> > > > > > > This series adds support for SPL to RISC-V U-Boot. Images can be booted via
> > > > > > > OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the
> > > > > > > former case, OpenSBI and U-Boot proper are bundled as a FIT image and made
> > > > > > > available to U-Boot SPL. Currently, only the QEMU board enables U-Boot SPL
> > > > > > > with a dedicated configuration. It uses RAM as SPL boot device.
> > > > > > >
> > > > > > > On many RISC-V CPUs, the device tree is provided to U-Boot by the first stage
> > > > > > > bootloader. This requires changes to U-Boot SPL (patches 1,
> > > > > > > 2 and 3), which modify the behavior on other boards as well.
> > > > > > >
> > > > > > > To test this series, OpenSBI has to be compiled first. The fw_dynamic.bin
> > > > > > > binary must be copied into the U-Boot root directory.
> > > > > > > Alternatively, the location of the binary can be specified with the OPENSBI
> > > > > > > environment variable. U-Boot can then be build as normal using the
> > > > > > > configuration qemu-riscv64_spl_defconfig for 64-bit builds or
> > > > > > > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build
> > > > > > > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot FIT
> > > > > > > image (u-boot.itb) containing U-Boot proper and OpenSBI.
> > > > > > >
> > > > > > > U-Boot can be run in QEMU with the following command.
> > > > > > >
> > > > > > > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \
> > > > > > > -device loader,file=u-boot.itb,addr=0x80200000
> > > > > > >
> > > > >
> > > > > Great job !
> > > > >
> > > >
> > > > Thank you!
> > > >
> > > > > I also try to run the spl flow on ax25-ae350 platform.
> > > > > But encounter some problems. I am still debugging.
> > > > >
> > > > > Following is the error message:
> > > > > :
> > > > > U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > > > > Trying to boot from RAM
> > > > >
> > > > > U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800)
> > > > >
> > > > > DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe
> > > > > ### ERROR ### Please RESET the board ###
> > > > >
> > > > > Do you have some comments ?
> > > > >
> > > >
> > > > It is difficult to judge without the exact configuration. Is your
> > > > current git tree available somewhere?
> > >
> > > No, it is not available yet.
> > > And you don't have the ax25-ae350 board, it is still in vain if the
> > > git tree is available.
> > >
> > > > The error is quite strange, because it already booted U-Boot proper. So
> > > > the error does not happen in code, which has been directly modified by
> > > > this series. Perhaps it is trying to initialize something twice (once
> > > > in SPL and again in U-Boot proper)? Can you check at what location the
> > > > error occurs?
> > >
> > > I found that the exception occurred in get_ram_size() of ax25-ae350.c
> > > when it try to load the memory address 0x10000.
> > > But the access of 0x20000 is ok.
> > >
> > > I try to mark the get_ram_size() and do not execute it, U-Boot proper
> > > can boot successfully as below:
> > >
> > > U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
> > > Trying to boot from RAM
> > >
> > > U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
> > > DRAM: 1 GiB
> > > Flash: 64 MiB
> > > MMC: mmc at f0e00000: 0
> > > Loading Environment from SPI Flash... SF: Detected mx25u1635e with
> > > page size 256 Bytes, erase size 4 KiB, total 2 MiB
> > > *** Warning - bad CRC, using default environment
> > > In: serial at f0300000
> > > Out: serial at f0300000
> > > Err: serial at f0300000
> > > Net: no alias for ethernet0
> > > Warning: mac at e0100000 (eth0) using random MAC address - 36:13:4d:06:b8:fd
> > > eth0: mac at e0100000
> > > Hit any key to stop autoboot: 0
> > > RISC-V #
> > >
> > > So I tried to trace openSBI and found the BANNER of openSBI was not printed.
> > > Is it correct ?
> >
> > Yes, U-Boot SPL is passing SBI_SCRATCH_NO_BOOT_PRINTS option to
> > OpenSBI due to which you don't see any prints. Although, error prints from
> > OpenSBI will be still available.
> >
>
> If you want to enable the OpenSBI banner, you can remove the option in
> common/spl/spl_opensbi.c.
>
> > > Any idea about why the access of memory address(0x10000) will fail ?
> > > I guess it seem relative to pmp configuration.
> >
> > If it is PMP access checks then you should get ACCESS faults error
> > prints from OpenSBI.
> >
>
> The access violation you are seeing is strange and I am not sure why
> OpenSBI does not print any errors. It does seem like a problem with the
> PMP configuration though.
>
I change pmpcfg0 from 0x1f18 to 0x1f1f and 0x10000 can be accessed.
==========
gdb message
==========
(gdb) p/x $pmpcfg0
$12 = {0x1f1f, pmp0cfg = {0x1f, a = 0x3}, pmp1cfg = {0x1f, a = 0x3},
pmp2cfg = {0x0, a = 0x0}, pmp3cfg = {0x0, a = 0x0}, pmp4cfg = {0x0,
a = 0x0}, pmp5cfg = {0x0, a = 0x0}, pmp6cfg = {0x0, a = 0x0}, pmp7cfg = {
0x0, a = 0x0}}
U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
Trying to boot from RAM
============
u-boot message
============
U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 02 2019 - 16:07:54 +0800)
DRAM: 1 GiB
Flash: 64 MiB
MMC: mmc at f0e00000: 0
Loading Environment from SPI Flash... SF: Detected mx25u1635e with
page size 256 Bytes, erase size 4 KiB, total 2 MiB
*** Warning - bad CRC, using default environment
In: serial at f0300000
Out: serial at f0300000
Err: serial at f0300000
Net: no alias for ethernet0
Warning: mac at e0100000 (eth0) using random MAC address - ea:d7:a7:97:06:2c
eth0: mac at e0100000
Hit any key to stop autoboot: 0
RISC-V #
RISC-V # md.b 0x10000
00010000: ef 80 c2 00 aa 87 3e 85 6f c0 22 26 ef c2 02 22 ......>.o."&..."
00010010: 17 25 03 00 13 05 05 03 ef a0 2f 92 19 c5 41 46 .%......../...AF
00010020: 81 45 ef 80 e2 13 6f c0 e2 23 83 b7 01 00 17 25 .E....o..#.....%
00010030: 03 00 13 05 25 ff 80 67 84 6b ef a0 0f 90 a2 87 ....%..g.k......
RISC-V #
Thanks
Rick
> Thanks,
> Lukas
^ permalink raw reply [flat|nested] 33+ messages in thread
end of thread, other threads:[~2019-08-08 9:49 UTC | newest]
Thread overview: 33+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-28 15:57 [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Lukas Auer
2019-07-28 15:57 ` [U-Boot] [PATCH v2 01/11] fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL Lukas Auer
2019-07-29 8:14 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 02/11] Makefile: support building SPL FIT images without device trees Lukas Auer
2019-07-29 8:17 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 03/11] spl: fit: use U-Boot device tree when FIT image has no device tree Lukas Auer
2019-07-29 8:20 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 04/11] riscv: add run mode configuration for SPL Lukas Auer
2019-07-29 8:24 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 05/11] spl: support booting via RISC-V OpenSBI Lukas Auer
2019-07-29 8:32 ` Anup Patel
2019-07-29 15:51 ` Auer, Lukas
2019-07-30 3:45 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 06/11] riscv: add SPL support Lukas Auer
2019-07-29 8:34 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 07/11] riscv: support SPL stack and global data relocation Lukas Auer
2019-07-29 8:36 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 08/11] riscv: add a generic FIT generator script Lukas Auer
2019-07-29 8:39 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 09/11] riscv: set default FIT generator script and build target for SPL builds Lukas Auer
2019-07-29 8:40 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 10/11] riscv: qemu: add SPL configuration Lukas Auer
2019-07-29 8:41 ` Anup Patel
2019-07-28 15:57 ` [U-Boot] [PATCH v2 11/11] doc: update QEMU RISC-V documentation Lukas Auer
2019-07-29 8:42 ` Anup Patel
2019-07-29 8:44 ` [U-Boot] [PATCH v2 00/11] SPL support for RISC-V Anup Patel
2019-07-29 15:52 ` Auer, Lukas
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA40F3AC4@ATCPCS16.andestech.com>
2019-08-01 3:32 ` Rick Chen
2019-08-01 13:51 ` Auer, Lukas
2019-08-02 8:41 ` Rick Chen
2019-08-02 8:48 ` Anup Patel
2019-08-02 10:25 ` Auer, Lukas
2019-08-08 9:49 ` Rick Chen
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