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* [PATCH 0/3] ARC nSIM (AKA virtual & prototyping platform) updates
@ 2019-12-26 13:31 Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART Alexey Brodkin
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Alexey Brodkin @ 2019-12-26 13:31 UTC (permalink / raw)
  To: u-boot; +Cc: linux-snps-arc, Alexey Brodkin, uboot-snps-arc

In this small series we refubrish olde good nSIM configs & platform
so that it no uses standard 16650 (in fact DesignWare) UART and
little-endian HS version also gets Virtio support (Net & BLK) for use
with QEMU.

Alexey Brodkin (3):
  ARC: nSIM: switch from ARC UART to DW UART
  ARC: nsim_{700|700be|hs38be}_defconfigs: Disable networking
  ARC: nsim_hs38: Add support of Virtio NET & BLK

 arch/arc/Kconfig                  |  4 ++--
 arch/arc/dts/nsim.dts             | 41 ++++++++++++++++++++++++++++++++++-----
 board/synopsys/{ => nsim}/Kconfig |  3 +++
 board/synopsys/nsim/MAINTAINERS   |  6 ++++++
 board/synopsys/nsim/Makefile      |  7 +++++++
 board/synopsys/nsim/nsim.c        | 26 +++++++++++++++++++++++++
 configs/nsim_700_defconfig        |  9 +++++----
 configs/nsim_700be_defconfig      |  9 +++++----
 configs/nsim_hs38_defconfig       | 17 ++++++++++++----
 configs/nsim_hs38be_defconfig     |  9 +++++----
 10 files changed, 108 insertions(+), 23 deletions(-)
 rename board/synopsys/{ => nsim}/Kconfig (74%)
 create mode 100644 board/synopsys/nsim/MAINTAINERS
 create mode 100644 board/synopsys/nsim/Makefile
 create mode 100644 board/synopsys/nsim/nsim.c

-- 
2.16.2


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^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART
  2019-12-26 13:31 [PATCH 0/3] ARC nSIM (AKA virtual & prototyping platform) updates Alexey Brodkin
@ 2019-12-26 13:31 ` Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 2/3] ARC: nsim_{700|700be|hs38be}_defconfigs: Disable networking Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 3/3] ARC: nsim_hs38: Add support of Virtio NET & BLK Alexey Brodkin
  2 siblings, 0 replies; 4+ messages in thread
From: Alexey Brodkin @ 2019-12-26 13:31 UTC (permalink / raw)
  To: u-boot; +Cc: linux-snps-arc, Alexey Brodkin, uboot-snps-arc

Since v2019.06 DesingWare nSIM supports DesignWare UART simulation
and so we may switch from pretty unusual ARC UART to much more standard
DesignWare UART (which in case of U-Boot is just an ordinary 16650 UART).

This among other things makes built dinaries compatible with our other
platforms to name a few: FPGA-based HAPS boards, QEMU and even ZeBU.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 arch/arc/dts/nsim.dts         | 12 +++++++-----
 configs/nsim_700_defconfig    |  8 ++++----
 configs/nsim_700be_defconfig  |  8 ++++----
 configs/nsim_hs38_defconfig   |  8 ++++----
 configs/nsim_hs38be_defconfig |  8 ++++----
 5 files changed, 23 insertions(+), 21 deletions(-)

diff --git a/arch/arc/dts/nsim.dts b/arch/arc/dts/nsim.dts
index 243ecb178e..a3f3964d35 100644
--- a/arch/arc/dts/nsim.dts
+++ b/arch/arc/dts/nsim.dts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
+ * Copyright (C) 2015-2016, 2019 Synopsys, Inc. (www.synopsys.com)
  */
 /dts-v1/;
 
@@ -10,7 +10,7 @@
 	model = "snps,nsim";
 
 	aliases {
-		console = &arcuart0;
+		console = &uart0;
 	};
 
 	cpu_card {
@@ -22,9 +22,11 @@
 		};
 	};
 
-	arcuart0: serial@0xc0fc1000 {
-		compatible = "snps,arc-uart";
-		reg = <0xc0fc1000 0x100>;
+	uart0: serial@f0000000 {
+		compatible = "snps,dw-apb-uart";
+		reg = <0xf0000000 0x1000>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
 		clock-frequency = <70000000>;
 	};
 
diff --git a/configs/nsim_700_defconfig b/configs/nsim_700_defconfig
index 5633113b09..2d4a58b178 100644
--- a/configs/nsim_700_defconfig
+++ b/configs/nsim_700_defconfig
@@ -1,13 +1,13 @@
 CONFIG_ARC=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -16,6 +16,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/nsim_700be_defconfig b/configs/nsim_700be_defconfig
index 40f7ec7e1f..61eea91449 100644
--- a/configs/nsim_700be_defconfig
+++ b/configs/nsim_700be_defconfig
@@ -2,13 +2,13 @@ CONFIG_ARC=y
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -17,6 +17,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/nsim_hs38_defconfig b/configs/nsim_hs38_defconfig
index 2820a6fca3..ce68de3251 100644
--- a/configs/nsim_hs38_defconfig
+++ b/configs/nsim_hs38_defconfig
@@ -2,13 +2,13 @@ CONFIG_ARC=y
 CONFIG_ISA_ARCV2=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -17,6 +17,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/nsim_hs38be_defconfig b/configs/nsim_hs38be_defconfig
index e533fae2b1..5d2ea59d52 100644
--- a/configs/nsim_hs38be_defconfig
+++ b/configs/nsim_hs38be_defconfig
@@ -3,13 +3,13 @@ CONFIG_ISA_ARCV2=y
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -18,6 +18,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
-- 
2.16.2


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http://lists.infradead.org/mailman/listinfo/linux-snps-arc

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH 2/3] ARC: nsim_{700|700be|hs38be}_defconfigs: Disable networking
  2019-12-26 13:31 [PATCH 0/3] ARC nSIM (AKA virtual & prototyping platform) updates Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART Alexey Brodkin
@ 2019-12-26 13:31 ` Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 3/3] ARC: nsim_hs38: Add support of Virtio NET & BLK Alexey Brodkin
  2 siblings, 0 replies; 4+ messages in thread
From: Alexey Brodkin @ 2019-12-26 13:31 UTC (permalink / raw)
  To: u-boot; +Cc: linux-snps-arc, Alexey Brodkin, uboot-snps-arc

We don't have yet any brc700 or big-enadian platforms with networking
support to run this particular configuration.

Whenever QEMU for ARC supports arc700 or big-endian targets we may revisit
this one.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 configs/nsim_700_defconfig    | 1 +
 configs/nsim_700be_defconfig  | 1 +
 configs/nsim_hs38be_defconfig | 1 +
 3 files changed, 3 insertions(+)

diff --git a/configs/nsim_700_defconfig b/configs/nsim_700_defconfig
index 2d4a58b178..6a38e2c246 100644
--- a/configs/nsim_700_defconfig
+++ b/configs/nsim_700_defconfig
@@ -14,6 +14,7 @@ CONFIG_OF_CONTROL=y
 CONFIG_OF_EMBED=y
 CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+# CONFIG_NET is not set
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
 CONFIG_DEBUG_UART_SHIFT=2
diff --git a/configs/nsim_700be_defconfig b/configs/nsim_700be_defconfig
index 61eea91449..d3ed84a415 100644
--- a/configs/nsim_700be_defconfig
+++ b/configs/nsim_700be_defconfig
@@ -15,6 +15,7 @@ CONFIG_OF_CONTROL=y
 CONFIG_OF_EMBED=y
 CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+# CONFIG_NET is not set
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
 CONFIG_DEBUG_UART_SHIFT=2
diff --git a/configs/nsim_hs38be_defconfig b/configs/nsim_hs38be_defconfig
index 5d2ea59d52..b074b4ca98 100644
--- a/configs/nsim_hs38be_defconfig
+++ b/configs/nsim_hs38be_defconfig
@@ -16,6 +16,7 @@ CONFIG_OF_CONTROL=y
 CONFIG_OF_EMBED=y
 CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+# CONFIG_NET is not set
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
 CONFIG_DEBUG_UART_SHIFT=2
-- 
2.16.2


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linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH 3/3] ARC: nsim_hs38: Add support of Virtio NET & BLK
  2019-12-26 13:31 [PATCH 0/3] ARC nSIM (AKA virtual & prototyping platform) updates Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART Alexey Brodkin
  2019-12-26 13:31 ` [PATCH 2/3] ARC: nsim_{700|700be|hs38be}_defconfigs: Disable networking Alexey Brodkin
@ 2019-12-26 13:31 ` Alexey Brodkin
  2 siblings, 0 replies; 4+ messages in thread
From: Alexey Brodkin @ 2019-12-26 13:31 UTC (permalink / raw)
  To: u-boot; +Cc: linux-snps-arc, Alexey Brodkin, uboot-snps-arc

Given now nsim_hs38 configuration is usable on QEMU and in QEMU
we have Virtio working perfectly fine the next logical step
is to add support of supported & known to work net & bkl to this
config.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 arch/arc/Kconfig                  |  4 ++--
 arch/arc/dts/nsim.dts             | 29 +++++++++++++++++++++++++++++
 board/synopsys/{ => nsim}/Kconfig |  3 +++
 board/synopsys/nsim/MAINTAINERS   |  6 ++++++
 board/synopsys/nsim/Makefile      |  7 +++++++
 board/synopsys/nsim/nsim.c        | 26 ++++++++++++++++++++++++++
 configs/nsim_hs38_defconfig       |  9 +++++++++
 7 files changed, 82 insertions(+), 2 deletions(-)
 rename board/synopsys/{ => nsim}/Kconfig (74%)
 create mode 100644 board/synopsys/nsim/MAINTAINERS
 create mode 100644 board/synopsys/nsim/Makefile
 create mode 100644 board/synopsys/nsim/nsim.c

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 0cb97207db..545fc3e243 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -160,7 +160,7 @@ config TARGET_TB100
 	bool "Support tb100"
 
 config TARGET_NSIM
-	bool "Support standalone nSIM & Free nSIM"
+	bool "Support ARC simulation & prototyping platforms"
 
 config TARGET_AXS101
 	bool "Support Synopsys Designware SDP board AXS101"
@@ -184,10 +184,10 @@ config TARGET_IOT_DEVKIT
 endchoice
 
 source "board/abilis/tb100/Kconfig"
-source "board/synopsys/Kconfig"
 source "board/synopsys/axs10x/Kconfig"
 source "board/synopsys/emsdp/Kconfig"
 source "board/synopsys/hsdk/Kconfig"
 source "board/synopsys/iot_devkit/Kconfig"
+source "board/synopsys/nsim/Kconfig"
 
 endmenu
diff --git a/arch/arc/dts/nsim.dts b/arch/arc/dts/nsim.dts
index a3f3964d35..376a776a78 100644
--- a/arch/arc/dts/nsim.dts
+++ b/arch/arc/dts/nsim.dts
@@ -30,4 +30,33 @@
 		clock-frequency = <70000000>;
 	};
 
+	virtio0: virtio@f0100000 {
+		compatible = "virtio,mmio";
+		reg = <0xf0100000 0x2000>;
+		interrupts = <31>;
+	};
+
+	virtio1: virtio@f0102000 {
+		compatible = "virtio,mmio";
+		reg = <0xf0102000 0x2000>;
+		interrupts = <32>;
+	};
+
+	virtio2: virtio@f0104000 {
+		compatible = "virtio,mmio";
+		reg = <0xf0104000 0x2000>;
+		interrupts = <33>;
+	};
+
+	virtio3: virtio@f0106000 {
+		compatible = "virtio,mmio";
+		reg = <0xf0106000 0x2000>;
+		interrupts = <34>;
+	};
+
+	virtio4: virtio@f0108000 {
+		compatible = "virtio,mmio";
+		reg = <0xf0108000 0x2000>;
+		interrupts = <35>;
+	};
 };
diff --git a/board/synopsys/Kconfig b/board/synopsys/nsim/Kconfig
similarity index 74%
rename from board/synopsys/Kconfig
rename to board/synopsys/nsim/Kconfig
index 27e5509b26..22287032bf 100644
--- a/board/synopsys/Kconfig
+++ b/board/synopsys/nsim/Kconfig
@@ -1,5 +1,8 @@
 if TARGET_NSIM
 
+config SYS_BOARD
+	default "nsim"
+
 config SYS_VENDOR
 	default "synopsys"
 
diff --git a/board/synopsys/nsim/MAINTAINERS b/board/synopsys/nsim/MAINTAINERS
new file mode 100644
index 0000000000..ed4b9a9e78
--- /dev/null
+++ b/board/synopsys/nsim/MAINTAINERS
@@ -0,0 +1,6 @@
+EM DEVELOPMENT KIT BOARD
+M:	Alexey Brodkin <abrodkin@synopsys.com>
+S:	Maintained
+F:	arch/arc/dts/nsim.dts
+F:	board/synopsys/nsim/
+F:	configs/nsim_*_defconfig
diff --git a/board/synopsys/nsim/Makefile b/board/synopsys/nsim/Makefile
new file mode 100644
index 0000000000..f4bc65d213
--- /dev/null
+++ b/board/synopsys/nsim/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2019 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= nsim.o
diff --git a/board/synopsys/nsim/nsim.c b/board/synopsys/nsim/nsim.c
new file mode 100644
index 0000000000..988ceabf30
--- /dev/null
+++ b/board/synopsys/nsim/nsim.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Synopsys, Inc. All rights reserved.
+ */
+
+#include <common.h>
+#include <dm/device.h>
+#include <virtio_types.h>
+#include <virtio.h>
+
+int board_early_init_r(void)
+{
+	/*
+	 * Make sure virtio bus is enumerated so that peripherals
+	 * on the virtio bus can be discovered by their drivers
+	 */
+	virtio_init();
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	printf("Board: ARC virtual or prototyping platform\n");
+	return 0;
+};
diff --git a/configs/nsim_hs38_defconfig b/configs/nsim_hs38_defconfig
index ce68de3251..6cd01a505b 100644
--- a/configs/nsim_hs38_defconfig
+++ b/configs/nsim_hs38_defconfig
@@ -9,14 +9,23 @@ CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200n8"
+CONFIG_BOARD_EARLY_INIT_R=y
 CONFIG_SYS_PROMPT="nsim# "
+CONFIG_CMD_DM=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
 CONFIG_OF_CONTROL=y
 CONFIG_OF_EMBED=y
 CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
+CONFIG_BLK=y
+CONFIG_HAVE_BLOCK_DEVICE=y
+CONFIG_DM_ETH=y
 CONFIG_DM_SERIAL=y
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_BLK=y
 CONFIG_USE_PRIVATE_LIBGCC=y
-- 
2.16.2


_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, back to index

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-26 13:31 [PATCH 0/3] ARC nSIM (AKA virtual & prototyping platform) updates Alexey Brodkin
2019-12-26 13:31 ` [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART Alexey Brodkin
2019-12-26 13:31 ` [PATCH 2/3] ARC: nsim_{700|700be|hs38be}_defconfigs: Disable networking Alexey Brodkin
2019-12-26 13:31 ` [PATCH 3/3] ARC: nsim_hs38: Add support of Virtio NET & BLK Alexey Brodkin

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