[U-Boot] [PATCH v2 2/9] dm: cpu: Test against cpu_ops->get_info in cpu_get_info()

[U-Boot] [PATCH v2 2/9] dm: cpu: Test against cpu_ops->get_info in cpu_get_info()

[Bin Meng]

In cpu_get_info() it wrongly tests against cpu_ops->get_desc to see
if it is NULL. It should test against cpu_ops->get_info.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
---

Changes in v2: None

 drivers/cpu/cpu-uclass.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpu/cpu-uclass.c b/drivers/cpu/cpu-uclass.c
index aa0267c..d6be9d4 100644
--- a/drivers/cpu/cpu-uclass.c
+++ b/drivers/cpu/cpu-uclass.c
@@ -26,7 +26,7 @@ int cpu_get_info(struct udevice *dev, struct cpu_info *info)
 {
 	struct cpu_ops *ops = cpu_get_ops(dev);
 
-	if (!ops->get_desc)
+	if (!ops->get_info)
 		return -ENOSYS;
 
 	return ops->get_info(dev, info);
-- 
1.8.2.1

[U-Boot] [PATCH v2 2/9] dm: cpu: Test against cpu_ops->get_info in cpu_get_info()

[Simon Glass]

Hi Bin,

On 12 June 2015 at 00:52, Bin Meng <bmeng.cn@gmail.com> wrote:
> In cpu_get_info() it wrongly tests against cpu_ops->get_desc to see
> if it is NULL. It should test against cpu_ops->get_info.
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
>  drivers/cpu/cpu-uclass.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

I have the same commit locally - I thought I sent it but obviously not.

Acked-by: Simon Glass <sjg@chromium.org>

Regards,
Simon

[U-Boot] [PATCH v2 2/9] dm: cpu: Test against cpu_ops->get_info in cpu_get_info()

[Simon Glass]

On 12 June 2015 at 13:10, Simon Glass <sjg@chromium.org> wrote:
> Hi Bin,
>
> On 12 June 2015 at 00:52, Bin Meng <bmeng.cn@gmail.com> wrote:
>> In cpu_get_info() it wrongly tests against cpu_ops->get_desc to see
>> if it is NULL. It should test against cpu_ops->get_info.
>>
>> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
>> ---
>>
>> Changes in v2: None
>>
>>  drivers/cpu/cpu-uclass.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> I have the same commit locally - I thought I sent it but obviously not.
>
> Acked-by: Simon Glass <sjg@chromium.org>

Applied to u-boot-x86.

[U-Boot] [PATCH v2 3/9] x86: dm: Clean up cpu drivers

[Bin Meng]

This commit does the following to clean up x86 cpu dm drivers:
- Move cpu_x86 driver codes from arch/x86/cpu/cpu.c to a dedicated
  file arch/x86/cpu/cpu_x86.c
- Rename x86_cpu_get_desc() to cpu_x86_get_desc() to keep consistent
  naming with other dm drivers
- Add a new cpu_x86_bind() in the cpu_x86 driver which does exactly
  the same as the one in the intel baytrail cpu driver
- Update intel baytrail cpu driver to use cpu_x86_get_desc() and
  cpu_x86_bind()

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/x86/cpu/Makefile          |  2 +-
 arch/x86/cpu/baytrail/cpu.c    | 15 +++----------
 arch/x86/cpu/cpu.c             | 28 ------------------------
 arch/x86/cpu/cpu_x86.c         | 48 ++++++++++++++++++++++++++++++++++++++++++
 arch/x86/include/asm/cpu.h     | 14 ------------
 arch/x86/include/asm/cpu_x86.h | 34 ++++++++++++++++++++++++++++++
 6 files changed, 86 insertions(+), 55 deletions(-)
 create mode 100644 arch/x86/cpu/cpu_x86.c
 create mode 100644 arch/x86/include/asm/cpu_x86.h

diff --git a/arch/x86/cpu/Makefile b/arch/x86/cpu/Makefile
index 7ff05e6..48197fb 100644
--- a/arch/x86/cpu/Makefile
+++ b/arch/x86/cpu/Makefile
@@ -10,7 +10,7 @@
 
 extra-y	= start.o
 obj-$(CONFIG_X86_RESET_VECTOR) += resetvec.o start16.o
-obj-y	+= interrupts.o cpu.o call64.o
+obj-y	+= interrupts.o cpu.o cpu_x86.o call64.o
 
 obj-$(CONFIG_INTEL_BAYTRAIL) += baytrail/
 obj-$(CONFIG_SYS_COREBOOT) += coreboot/
diff --git a/arch/x86/cpu/baytrail/cpu.c b/arch/x86/cpu/baytrail/cpu.c
index 1d48206..05156a5 100644
--- a/arch/x86/cpu/baytrail/cpu.c
+++ b/arch/x86/cpu/baytrail/cpu.c
@@ -10,6 +10,7 @@
 #include <cpu.h>
 #include <dm.h>
 #include <asm/cpu.h>
+#include <asm/cpu_x86.h>
 #include <asm/lapic.h>
 #include <asm/mp.h>
 #include <asm/msr.h>
@@ -175,18 +176,8 @@ static int baytrail_get_info(struct udevice *dev, struct cpu_info *info)
 	return 0;
 }
 
-static int cpu_x86_baytrail_bind(struct udevice *dev)
-{
-	struct cpu_platdata *plat = dev_get_parent_platdata(dev);
-
-	plat->cpu_id = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
-				      "intel,apic-id", -1);
-
-	return 0;
-}
-
 static const struct cpu_ops cpu_x86_baytrail_ops = {
-	.get_desc	= x86_cpu_get_desc,
+	.get_desc	= cpu_x86_get_desc,
 	.get_info	= baytrail_get_info,
 };
 
@@ -199,7 +190,7 @@ U_BOOT_DRIVER(cpu_x86_baytrail_drv) = {
 	.name		= "cpu_x86_baytrail",
 	.id		= UCLASS_CPU,
 	.of_match	= cpu_x86_baytrail_ids,
-	.bind		= cpu_x86_baytrail_bind,
+	.bind		= cpu_x86_bind,
 	.probe		= cpu_x86_baytrail_probe,
 	.ops		= &cpu_x86_baytrail_ops,
 };
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index bb4a110..ffb6e43 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -21,8 +21,6 @@
 
 #include <common.h>
 #include <command.h>
-#include <cpu.h>
-#include <dm.h>
 #include <errno.h>
 #include <malloc.h>
 #include <asm/control_regs.h>
@@ -520,16 +518,6 @@ char *cpu_get_name(char *name)
 	return ptr;
 }
 
-int x86_cpu_get_desc(struct udevice *dev, char *buf, int size)
-{
-	if (size < CPU_MAX_NAME_LEN)
-		return -ENOSPC;
-
-	cpu_get_name(buf);
-
-	return 0;
-}
-
 int default_print_cpuinfo(void)
 {
 	printf("CPU: %s, vendor %s, device %xh\n",
@@ -622,19 +610,3 @@ int cpu_init_r(void)
 {
 	return x86_init_cpus();
 }
-
-static const struct cpu_ops cpu_x86_ops = {
-	.get_desc	= x86_cpu_get_desc,
-};
-
-static const struct udevice_id cpu_x86_ids[] = {
-	{ .compatible = "cpu-x86" },
-	{ }
-};
-
-U_BOOT_DRIVER(cpu_x86_drv) = {
-	.name		= "cpu_x86",
-	.id		= UCLASS_CPU,
-	.of_match	= cpu_x86_ids,
-	.ops		= &cpu_x86_ops,
-};
diff --git a/arch/x86/cpu/cpu_x86.c b/arch/x86/cpu/cpu_x86.c
new file mode 100644
index 0000000..d32ba66
--- /dev/null
+++ b/arch/x86/cpu/cpu_x86.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <cpu.h>
+#include <dm.h>
+#include <errno.h>
+#include <asm/cpu.h>
+
+int cpu_x86_bind(struct udevice *dev)
+{
+	struct cpu_platdata *plat = dev_get_parent_platdata(dev);
+
+	plat->cpu_id = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+				      "intel,apic-id", -1);
+
+	return 0;
+}
+
+int cpu_x86_get_desc(struct udevice *dev, char *buf, int size)
+{
+	if (size < CPU_MAX_NAME_LEN)
+		return -ENOSPC;
+
+	cpu_get_name(buf);
+
+	return 0;
+}
+
+static const struct cpu_ops cpu_x86_ops = {
+	.get_desc	= cpu_x86_get_desc,
+};
+
+static const struct udevice_id cpu_x86_ids[] = {
+	{ .compatible = "cpu-x86" },
+	{ }
+};
+
+U_BOOT_DRIVER(cpu_x86_drv) = {
+	.name		= "cpu_x86",
+	.id		= UCLASS_CPU,
+	.of_match	= cpu_x86_ids,
+	.bind		= cpu_x86_bind,
+	.ops		= &cpu_x86_ops,
+};
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index ebc74ad..08284ee 100644
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -197,20 +197,6 @@ const char *cpu_vendor_name(int vendor);
 char *cpu_get_name(char *name);
 
 /**
- *
-* x86_cpu_get_desc() - Get a description string for an x86 CPU
-*
-* This uses cpu_get_name() and is suitable to use as the get_desc() method for
-* the CPU uclass.
-*
-* @dev:		Device to check (UCLASS_CPU)
-* @buf:		Buffer to place string
-* @size:	Size of string space
-* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
-*/
-int x86_cpu_get_desc(struct udevice *dev, char *buf, int size);
-
-/**
  * cpu_call64() - Jump to a 64-bit Linux kernel (internal function)
  *
  * The kernel is uncompressed and the 64-bit entry point is expected to be
diff --git a/arch/x86/include/asm/cpu_x86.h b/arch/x86/include/asm/cpu_x86.h
new file mode 100644
index 0000000..1940480
--- /dev/null
+++ b/arch/x86/include/asm/cpu_x86.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_CPU_X86_H
+#define _ASM_CPU_X86_H
+
+/**
+ * cpu_x86_bind() - Bind an x86 CPU with the driver
+ *
+ * This updates cpu device's platform data with information from device tree,
+ * like the processor local apic id.
+ *
+ * @dev:	Device to check (UCLASS_CPU)
+ * @return	0 always
+ */
+int cpu_x86_bind(struct udevice *dev);
+
+/**
+ * cpu_x86_get_desc() - Get a description string for an x86 CPU
+ *
+ * This uses cpu_get_name() and is suitable to use as the get_desc() method for
+ * the CPU uclass.
+ *
+ * @dev:	Device to check (UCLASS_CPU)
+ * @buf:	Buffer to place string
+ * @size:	Size of string space
+ * @return:	0 if OK, -ENOSPC if buffer is too small, other -ve on error
+ */
+int cpu_x86_get_desc(struct udevice *dev, char *buf, int size);
+
+#endif /* _ASM_CPU_X86_H */
-- 
1.8.2.1

[U-Boot] [PATCH v2 3/9] x86: dm: Clean up cpu drivers

[Simon Glass]

On 12 June 2015 at 00:52, Bin Meng <bmeng.cn@gmail.com> wrote:
> This commit does the following to clean up x86 cpu dm drivers:
> - Move cpu_x86 driver codes from arch/x86/cpu/cpu.c to a dedicated
>   file arch/x86/cpu/cpu_x86.c
> - Rename x86_cpu_get_desc() to cpu_x86_get_desc() to keep consistent
>   naming with other dm drivers
> - Add a new cpu_x86_bind() in the cpu_x86 driver which does exactly
>   the same as the one in the intel baytrail cpu driver
> - Update intel baytrail cpu driver to use cpu_x86_get_desc() and
>   cpu_x86_bind()
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> Acked-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes in v2: None
>
>  arch/x86/cpu/Makefile          |  2 +-
>  arch/x86/cpu/baytrail/cpu.c    | 15 +++----------
>  arch/x86/cpu/cpu.c             | 28 ------------------------
>  arch/x86/cpu/cpu_x86.c         | 48 ++++++++++++++++++++++++++++++++++++++++++
>  arch/x86/include/asm/cpu.h     | 14 ------------
>  arch/x86/include/asm/cpu_x86.h | 34 ++++++++++++++++++++++++++++++
>  6 files changed, 86 insertions(+), 55 deletions(-)
>  create mode 100644 arch/x86/cpu/cpu_x86.c
>  create mode 100644 arch/x86/include/asm/cpu_x86.h

Applied to u-boot-x86.

[U-Boot] [PATCH v2 4/9] x86: Move MP initialization codes into a common place

[Bin Meng]

Most of the MP initialization codes in arch/x86/cpu/baytrail/cpu.c is
common to all x86 processors, except detect_num_cpus() which varies
from cpu to cpu. Move these to arch/x86/cpu/cpu.c and declare a weak
detect_num_cpus() which just returns 2 which is minimally required.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
---

Changes in v2: None

 arch/x86/cpu/baytrail/cpu.c | 44 +-----------------------------------------
 arch/x86/cpu/cpu.c          | 47 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 43 deletions(-)

diff --git a/arch/x86/cpu/baytrail/cpu.c b/arch/x86/cpu/baytrail/cpu.c
index 05156a5..7805056 100644
--- a/arch/x86/cpu/baytrail/cpu.c
+++ b/arch/x86/cpu/baytrail/cpu.c
@@ -12,23 +12,11 @@
 #include <asm/cpu.h>
 #include <asm/cpu_x86.h>
 #include <asm/lapic.h>
-#include <asm/mp.h>
 #include <asm/msr.h>
 #include <asm/turbo.h>
 
 #ifdef CONFIG_SMP
-static int enable_smis(struct udevice *cpu, void *unused)
-{
-	return 0;
-}
-
-static struct mp_flight_record mp_steps[] = {
-	MP_FR_BLOCK_APS(mp_init_cpu, NULL, mp_init_cpu, NULL),
-	/* Wait for APs to finish initialization before proceeding. */
-	MP_FR_BLOCK_APS(NULL, NULL, enable_smis, NULL),
-};
-
-static int detect_num_cpus(void)
+int detect_num_cpus(void)
 {
 	int ecx = 0;
 
@@ -52,38 +40,8 @@ static int detect_num_cpus(void)
 		ecx++;
 	}
 }
-
-static int baytrail_init_cpus(void)
-{
-	struct mp_params mp_params;
-
-	lapic_setup();
-
-	mp_params.num_cpus = detect_num_cpus();
-	mp_params.parallel_microcode_load = 0,
-	mp_params.flight_plan = &mp_steps[0];
-	mp_params.num_records = ARRAY_SIZE(mp_steps);
-	mp_params.microcode_pointer = 0;
-
-	if (mp_init(&mp_params)) {
-		printf("Warning: MP init failure\n");
-		return -EIO;
-	}
-
-	return 0;
-}
 #endif
 
-int x86_init_cpus(void)
-{
-#ifdef CONFIG_SMP
-	debug("Init additional CPUs\n");
-	baytrail_init_cpus();
-#endif
-
-	return 0;
-}
-
 static void set_max_freq(void)
 {
 	msr_t perf_ctl;
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index ffb6e43..ddc7dc3 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -21,10 +21,13 @@
 
 #include <common.h>
 #include <command.h>
+#include <dm.h>
 #include <errno.h>
 #include <malloc.h>
 #include <asm/control_regs.h>
 #include <asm/cpu.h>
+#include <asm/lapic.h>
+#include <asm/mp.h>
 #include <asm/post.h>
 #include <asm/processor.h>
 #include <asm/processor-flags.h>
@@ -601,8 +604,52 @@ int last_stage_init(void)
 }
 #endif
 
+#ifdef CONFIG_SMP
+static int enable_smis(struct udevice *cpu, void *unused)
+{
+	return 0;
+}
+
+static struct mp_flight_record mp_steps[] = {
+	MP_FR_BLOCK_APS(mp_init_cpu, NULL, mp_init_cpu, NULL),
+	/* Wait for APs to finish initialization before proceeding */
+	MP_FR_BLOCK_APS(NULL, NULL, enable_smis, NULL),
+};
+
+__weak int detect_num_cpus(void)
+{
+	/* We need at least 2 cores to perform mp_init() */
+	return 2;
+}
+
+static int x86_mp_init(void)
+{
+	struct mp_params mp_params;
+
+	lapic_setup();
+
+	mp_params.num_cpus = detect_num_cpus();
+	mp_params.parallel_microcode_load = 0,
+	mp_params.flight_plan = &mp_steps[0];
+	mp_params.num_records = ARRAY_SIZE(mp_steps);
+	mp_params.microcode_pointer = 0;
+
+	if (mp_init(&mp_params)) {
+		printf("Warning: MP init failure\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+#endif
+
 __weak int x86_init_cpus(void)
 {
+#ifdef CONFIG_SMP
+	debug("Init additional CPUs\n");
+	x86_mp_init();
+#endif
+
 	return 0;
 }
 
-- 
1.8.2.1

[U-Boot] [PATCH v2 5/9] x86: kconfig: Make MAX_CPUS and AP_STACK_SIZE depend on SMP

[Bin Meng]

MAX_CPUS and AP_STACK_SIZE are only meaningful when SMP is on.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/x86/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3506ba2..d4cd9ed 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -228,6 +228,7 @@ config FSP_TEMP_RAM_ADDR
 
 config MAX_CPUS
         int "Maximum number of CPUs permitted"
+        depends on SMP
         default 4
         help
           When using multi-CPU chips it is possible for U-Boot to start up
@@ -249,6 +250,7 @@ config SMP
 
 config AP_STACK_SIZE
 	hex
+	depends on SMP
 	default 0x1000
 	help
 	  Each additional CPU started by U-Boot requires its own stack. This
-- 
1.8.2.1

[U-Boot] [PATCH v2 5/9] x86: kconfig: Make MAX_CPUS and AP_STACK_SIZE depend on SMP

[Simon Glass]

On 12 June 2015 at 00:52, Bin Meng <bmeng.cn@gmail.com> wrote:
> MAX_CPUS and AP_STACK_SIZE are only meaningful when SMP is on.
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> Acked-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes in v2: None
>
>  arch/x86/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)

Applied to u-boot-x86.

[U-Boot] [PATCH v2 6/9] x86: kconfig: Fix minor nits in MAX_CPUS

[Bin Meng]

Move MAX_CPUS definition after SMP so that it shows below SMP in the
menuconfig. Also replace the leading spaces in the MAX_CPUS section
with tabs to conform coding standard.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/x86/Kconfig | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d4cd9ed..4757011 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -226,18 +226,6 @@ config FSP_TEMP_RAM_ADDR
 	  Stack top address which is used in FspInit after DRAM is ready and
 	  CAR is disabled.
 
-config MAX_CPUS
-        int "Maximum number of CPUs permitted"
-        depends on SMP
-        default 4
-        help
-          When using multi-CPU chips it is possible for U-Boot to start up
-          more than one CPU. The stack memory used by all of these CPUs is
-          pre-allocated so at present U-Boot wants to know the maximum
-          number of CPUs that may be present. Set this to at least as high
-          as the number of CPUs in your system (it uses about 4KB of RAM for
-          each CPU).
-
 config SMP
 	bool "Enable Symmetric Multiprocessing"
 	default n
@@ -248,6 +236,18 @@ config SMP
 	  only one CPU will be enabled regardless of the number of CPUs
 	  available.
 
+config MAX_CPUS
+	int "Maximum number of CPUs permitted"
+	depends on SMP
+	default 4
+	help
+	  When using multi-CPU chips it is possible for U-Boot to start up
+	  more than one CPU. The stack memory used by all of these CPUs is
+	  pre-allocated so at present U-Boot wants to know the maximum
+	  number of CPUs that may be present. Set this to at least as high
+	  as the number of CPUs in your system (it uses about 4KB of RAM for
+	  each CPU).
+
 config AP_STACK_SIZE
 	hex
 	depends on SMP
-- 
1.8.2.1

[U-Boot] [PATCH v2 6/9] x86: kconfig: Fix minor nits in MAX_CPUS

[Simon Glass]

On 12 June 2015 at 00:52, Bin Meng <bmeng.cn@gmail.com> wrote:
> Move MAX_CPUS definition after SMP so that it shows below SMP in the
> menuconfig. Also replace the leading spaces in the MAX_CPUS section
> with tabs to conform coding standard.
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> Acked-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes in v2: None
>
>  arch/x86/Kconfig | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)

Applied to u-boot-x86.

[U-Boot] [PATCH v2 7/9] x86: Move lapic_setup() call into init_bsp()

[Bin Meng]

Currently lapic_setup() is called before calling mp_init(), which
then calls init_bsp() where it calls enable_lapic(), which was
already enabled in lapic_setup(). Hence move lapic_setup() call
into init_bsp() to avoid the duplication.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/x86/cpu/cpu.c     | 2 --
 arch/x86/cpu/mp_init.c | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index ddc7dc3..dd1b18b 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -626,8 +626,6 @@ static int x86_mp_init(void)
 {
 	struct mp_params mp_params;
 
-	lapic_setup();
-
 	mp_params.num_cpus = detect_num_cpus();
 	mp_params.parallel_microcode_load = 0,
 	mp_params.flight_plan = &mp_steps[0];
diff --git a/arch/x86/cpu/mp_init.c b/arch/x86/cpu/mp_init.c
index ac5753a..864eb63 100644
--- a/arch/x86/cpu/mp_init.c
+++ b/arch/x86/cpu/mp_init.c
@@ -415,7 +415,7 @@ static int init_bsp(struct udevice **devp)
 	cpu_get_name(processor_name);
 	debug("CPU: %s.\n", processor_name);
 
-	enable_lapic();
+	lapic_setup();
 
 	apic_id = lapicid();
 	ret = find_cpu_by_apid_id(apic_id, devp);
-- 
1.8.2.1

[U-Boot] [PATCH v2 8/9] x86: Clean up lapic codes

[Bin Meng]

This commit cleans up the lapic codes:
- Delete arch/x86/include/asm/lapic_def.h, and move register and bit
  defines into arch/x86/include/asm/lapic.h
- Use MSR defines from msr-index.h in enable_lapic() and disable_lapic()
- Remove unnecessary stuff like NEED_LAPIC, X86_GOOD_APIC and
  CONFIG_AP_IN_SIPI_WAIT
- Move struct x86_cpu_priv defines to asm/arch-ivybridge/bd82x6x.h, as
  it is not apic related and only used by ivybridge
- Fix coding convention issues

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/x86/cpu/ivybridge/model_206ax.c          |   2 +-
 arch/x86/cpu/lapic.c                          |  38 ++++----
 arch/x86/include/asm/arch-ivybridge/bd82x6x.h |  14 ++-
 arch/x86/include/asm/lapic.h                  | 131 ++++++++++++++------------
 arch/x86/include/asm/lapic_def.h              | 101 --------------------
 5 files changed, 103 insertions(+), 183 deletions(-)
 delete mode 100644 arch/x86/include/asm/lapic_def.h

diff --git a/arch/x86/cpu/ivybridge/model_206ax.c b/arch/x86/cpu/ivybridge/model_206ax.c
index 8b08c40..fd7db97 100644
--- a/arch/x86/cpu/ivybridge/model_206ax.c
+++ b/arch/x86/cpu/ivybridge/model_206ax.c
@@ -13,12 +13,12 @@
 #include <asm/acpi.h>
 #include <asm/cpu.h>
 #include <asm/lapic.h>
-#include <asm/lapic_def.h>
 #include <asm/msr.h>
 #include <asm/mtrr.h>
 #include <asm/processor.h>
 #include <asm/speedstep.h>
 #include <asm/turbo.h>
+#include <asm/arch/bd82x6x.h>
 #include <asm/arch/model_206ax.h>
 
 static void enable_vmx(void)
diff --git a/arch/x86/cpu/lapic.c b/arch/x86/cpu/lapic.c
index 4690603..6769ae5 100644
--- a/arch/x86/cpu/lapic.c
+++ b/arch/x86/cpu/lapic.c
@@ -8,50 +8,46 @@
  */
 
 #include <common.h>
-#include <asm/msr.h>
-#include <asm/io.h>
 #include <asm/lapic.h>
 #include <asm/post.h>
 
 void lapic_setup(void)
 {
-#if NEED_LAPIC == 1
+#ifdef CONFIG_SMP
 	/* Only Pentium Pro and later have those MSR stuff */
 	debug("Setting up local apic: ");
 
 	/* Enable the local apic */
 	enable_lapic();
 
-	/*
-	 * Set Task Priority to 'accept all'.
-	 */
+	/* Set Task Priority to 'accept all' */
 	lapic_write_around(LAPIC_TASKPRI,
 			   lapic_read_around(LAPIC_TASKPRI) & ~LAPIC_TPRI_MASK);
 
 	/* Put the local apic in virtual wire mode */
 	lapic_write_around(LAPIC_SPIV, (lapic_read_around(LAPIC_SPIV) &
-				~(LAPIC_VECTOR_MASK)) | LAPIC_SPIV_ENABLE);
+			   ~(LAPIC_VECTOR_MASK)) | LAPIC_SPIV_ENABLE);
 	lapic_write_around(LAPIC_LVT0, (lapic_read_around(LAPIC_LVT0) &
-			~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER |
-			  LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY |
-			  LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 |
-			  LAPIC_DELIVERY_MODE_MASK)) |
-			(LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING |
-			 LAPIC_DELIVERY_MODE_EXTINT));
+			   ~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER |
+			   LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY |
+			   LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 |
+			   LAPIC_DELIVERY_MODE_MASK)) |
+			   (LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING |
+			   LAPIC_DELIVERY_MODE_EXTINT));
 	lapic_write_around(LAPIC_LVT1, (lapic_read_around(LAPIC_LVT1) &
-			~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER |
-			  LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY |
-			  LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 |
-			  LAPIC_DELIVERY_MODE_MASK)) |
-		(LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING |
-			LAPIC_DELIVERY_MODE_NMI));
+			   ~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER |
+			   LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY |
+			   LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 |
+			   LAPIC_DELIVERY_MODE_MASK)) |
+			   (LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING |
+			   LAPIC_DELIVERY_MODE_NMI));
 
 	debug("apic_id: 0x%02lx, ", lapicid());
-#else /* !NEED_LLAPIC */
+#else /* !CONFIG_SMP */
 	/* Only Pentium Pro and later have those MSR stuff */
 	debug("Disabling local apic: ");
 	disable_lapic();
-#endif /* !NEED_LAPIC */
+#endif /* CONFIG_SMP */
 	debug("done.\n");
 	post_code(POST_LAPIC);
 }
diff --git a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h
index 5ae32f7..7786493 100644
--- a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h
+++ b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h
@@ -16,7 +16,19 @@ int gma_func0_init(pci_dev_t dev, struct pci_controller *hose,
 		   const void *blob, int node);
 int bd82x6x_init(void);
 
-struct x86_cpu_priv;
+/**
+ * struct x86_cpu_priv - Information about a single CPU
+ *
+ * @apic_id: Advanced Programmable Interrupt Controller Identifier, which is
+ * just a number representing the CPU core
+ *
+ * TODO: Move this to driver model once lifecycle is understood
+ */
+struct x86_cpu_priv {
+	int apic_id;
+	int start_err;
+};
+
 int model_206ax_init(struct x86_cpu_priv *cpu);
 
 #endif
diff --git a/arch/x86/include/asm/lapic.h b/arch/x86/include/asm/lapic.h
index 0a7f443..f60974a 100644
--- a/arch/x86/include/asm/lapic.h
+++ b/arch/x86/include/asm/lapic.h
@@ -1,5 +1,5 @@
 /*
- * From Coreboot file of same name
+ * From coreboot file of same name
  *
  * Copyright (C) 2014 Google, Inc
  *
@@ -10,16 +10,61 @@
 #define _ARCH_ASM_LAPIC_H
 
 #include <asm/io.h>
-#include <asm/lapic_def.h>
 #include <asm/msr.h>
+#include <asm/msr-index.h>
 #include <asm/processor.h>
 
-/* See if I need to initialize the local apic */
-#if CONFIG_SMP || CONFIG_IOAPIC
-#  define NEED_LAPIC 1
-#else
-#  define NEED_LAPIC 0
-#endif
+#define LAPIC_DEFAULT_BASE		0xfee00000
+
+#define LAPIC_ID			0x020
+#define LAPIC_LVR			0x030
+
+#define LAPIC_TASKPRI			0x080
+#define LAPIC_TPRI_MASK			0xff
+
+#define LAPIC_RRR			0x0c0
+
+#define LAPIC_SPIV			0x0f0
+#define LAPIC_SPIV_ENABLE		0x100
+
+#define LAPIC_ICR			0x300
+#define LAPIC_DEST_SELF			0x40000
+#define LAPIC_DEST_ALLINC		0x80000
+#define LAPIC_DEST_ALLBUT		0xc0000
+#define LAPIC_ICR_RR_MASK		0x30000
+#define LAPIC_ICR_RR_INVALID		0x00000
+#define LAPIC_ICR_RR_INPROG		0x10000
+#define LAPIC_ICR_RR_VALID		0x20000
+#define LAPIC_INT_LEVELTRIG		0x08000
+#define LAPIC_INT_ASSERT		0x04000
+#define LAPIC_ICR_BUSY			0x01000
+#define LAPIC_DEST_LOGICAL		0x00800
+#define LAPIC_DM_FIXED			0x00000
+#define LAPIC_DM_LOWEST			0x00100
+#define LAPIC_DM_SMI			0x00200
+#define LAPIC_DM_REMRD			0x00300
+#define LAPIC_DM_NMI			0x00400
+#define LAPIC_DM_INIT			0x00500
+#define LAPIC_DM_STARTUP		0x00600
+#define LAPIC_DM_EXTINT			0x00700
+#define LAPIC_VECTOR_MASK		0x000ff
+
+#define LAPIC_ICR2			0x310
+#define GET_LAPIC_DEST_FIELD(x)		(((x) >> 24) & 0xff)
+#define SET_LAPIC_DEST_FIELD(x)		((x) << 24)
+
+#define LAPIC_LVT0			0x350
+#define LAPIC_LVT1			0x360
+#define LAPIC_LVT_MASKED		(1 << 16)
+#define LAPIC_LVT_LEVEL_TRIGGER		(1 << 15)
+#define LAPIC_LVT_REMOTE_IRR		(1 << 14)
+#define LAPIC_INPUT_POLARITY		(1 << 13)
+#define LAPIC_SEND_PENDING		(1 << 12)
+#define LAPIC_LVT_RESERVED_1		(1 << 11)
+#define LAPIC_DELIVERY_MODE_MASK	(7 << 8)
+#define LAPIC_DELIVERY_MODE_FIXED	(0 << 8)
+#define LAPIC_DELIVERY_MODE_NMI		(4 << 8)
+#define LAPIC_DELIVERY_MODE_EXTINT	(7 << 8)
 
 static inline __attribute__((always_inline))
 		unsigned long lapic_read(unsigned long reg)
@@ -42,21 +87,21 @@ static inline void enable_lapic(void)
 {
 	msr_t msr;
 
-	msr = msr_read(LAPIC_BASE_MSR);
+	msr = msr_read(MSR_IA32_APICBASE);
 	msr.hi &= 0xffffff00;
-	msr.lo |= LAPIC_BASE_MSR_ENABLE;
-	msr.lo &= ~LAPIC_BASE_MSR_ADDR_MASK;
+	msr.lo |= MSR_IA32_APICBASE_ENABLE;
+	msr.lo &= ~MSR_IA32_APICBASE_BASE;
 	msr.lo |= LAPIC_DEFAULT_BASE;
-	msr_write(LAPIC_BASE_MSR, msr);
+	msr_write(MSR_IA32_APICBASE, msr);
 }
 
 static inline void disable_lapic(void)
 {
 	msr_t msr;
 
-	msr = msr_read(LAPIC_BASE_MSR);
-	msr.lo &= ~(1 << 11);
-	msr_write(LAPIC_BASE_MSR, msr);
+	msr = msr_read(MSR_IA32_APICBASE);
+	msr.lo &= ~MSR_IA32_APICBASE_ENABLE;
+	msr_write(MSR_IA32_APICBASE, msr);
 }
 
 static inline __attribute__((always_inline)) unsigned long lapicid(void)
@@ -64,30 +109,24 @@ static inline __attribute__((always_inline)) unsigned long lapicid(void)
 	return lapic_read(LAPIC_ID) >> 24;
 }
 
-#if !CONFIG_AP_IN_SIPI_WAIT
-/* If we need to go back to sipi wait, we use the long non-inlined version of
- * this function in lapic_cpu_init.c
- */
 static inline __attribute__((always_inline)) void stop_this_cpu(void)
 {
 	/* Called by an AP when it is ready to halt and wait for a new task */
 	for (;;)
 		cpu_hlt();
 }
-#else
-void stop_this_cpu(void);
-#endif
 
-#define xchg(ptr, v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \
-							sizeof(*(ptr))))
+#define xchg(ptr, v)	((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \
+						    sizeof(*(ptr))))
 
-struct __xchg_dummy { unsigned long a[100]; };
-#define __xg(x) ((struct __xchg_dummy *)(x))
+struct __xchg_dummy	{ unsigned long a[100]; };
+#define __xg(x)		((struct __xchg_dummy *)(x))
 
 /*
- * Note: no "lock" prefix even on SMP: xchg always implies lock anyway
+ * Note: no "lock" prefix even on SMP. xchg always implies lock anyway.
+ *
  * Note 2: xchg has side effect, so that attribute volatile is necessary,
- *	  but generally the primitive is invalid, *ptr is output argument. --ANK
+ *         but generally the primitive is invalid, *ptr is output argument.
  */
 static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
 				   int size)
@@ -121,25 +160,19 @@ static inline void lapic_write_atomic(unsigned long reg, unsigned long v)
 	(void)xchg((volatile unsigned long *)(LAPIC_DEFAULT_BASE + reg), v);
 }
 
-
-#ifdef X86_GOOD_APIC
-# define FORCE_READ_AROUND_WRITE 0
-# define lapic_read_around(x) lapic_read(x)
-# define lapic_write_around(x, y) lapic_write((x), (y))
-#else
-# define FORCE_READ_AROUND_WRITE 1
-# define lapic_read_around(x) lapic_read(x)
-# define lapic_write_around(x, y) lapic_write_atomic((x), (y))
-#endif
+#define lapic_read_around(x)		lapic_read(x)
+#define lapic_write_around(x, y)	lapic_write_atomic((x), (y))
 
 static inline int lapic_remote_read(int apicid, int reg, unsigned long *pvalue)
 {
 	int timeout;
 	unsigned long status;
 	int result;
+
 	lapic_wait_icr_idle();
 	lapic_write_around(LAPIC_ICR2, SET_LAPIC_DEST_FIELD(apicid));
 	lapic_write_around(LAPIC_ICR, LAPIC_DM_REMRD | (reg >> 4));
+
 	timeout = 0;
 	do {
 		status = lapic_read(LAPIC_ICR) & LAPIC_ICR_RR_MASK;
@@ -150,30 +183,10 @@ static inline int lapic_remote_read(int apicid, int reg, unsigned long *pvalue)
 		*pvalue = lapic_read(LAPIC_RRR);
 		result = 0;
 	}
+
 	return result;
 }
 
-
 void lapic_setup(void);
 
-#if CONFIG_SMP
-struct device;
-int start_cpu(struct device *cpu);
-#endif /* CONFIG_SMP */
-
-int boot_cpu(void);
-
-/**
- * struct x86_cpu_priv - Information about a single CPU
- *
- * @apic_id: Advanced Programmable Interrupt Controller Identifier, which is
- * just a number representing the CPU core
- *
- * TODO: Move this to driver model once lifecycle is understood
- */
-struct x86_cpu_priv {
-	int apic_id;
-	int start_err;
-};
-
 #endif
diff --git a/arch/x86/include/asm/lapic_def.h b/arch/x86/include/asm/lapic_def.h
deleted file mode 100644
index 722cead..0000000
--- a/arch/x86/include/asm/lapic_def.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Taken from the Coreboot file of the same name
- *
- * (C) Copyright 2014 Google, Inc
- *
- * SPDX-License-Identifier:	GPL-2.0
- */
-
-#ifndef _ASM_LAPIC_DEF_H
-#define _ASM_LAPIC_DEF_H
-
-#define LAPIC_BASE_MSR			0x1B
-#define LAPIC_BASE_MSR_BOOTSTRAP_PROCESSOR	(1 << 8)
-#define LAPIC_BASE_MSR_ENABLE		(1 << 11)
-#define LAPIC_BASE_MSR_ADDR_MASK	0xFFFFF000
-
-#define LOCAL_APIC_ADDR			0xfee00000
-#define LAPIC_DEFAULT_BASE		LOCAL_APIC_ADDR
-
-#define LAPIC_ID			0x020
-#define LAPIC_LVR			0x030
-#define LAPIC_TASKPRI			0x80
-#define LAPIC_TPRI_MASK			0xFF
-#define LAPIC_ARBID			0x090
-#define LAPIC_RRR			0x0C0
-#define LAPIC_SVR			0x0f0
-#define LAPIC_SPIV			0x0f0
-#define LAPIC_SPIV_ENABLE		0x100
-#define LAPIC_ESR			0x280
-#define LAPIC_ESR_SEND_CS		0x00001
-#define LAPIC_ESR_RECV_CS		0x00002
-#define LAPIC_ESR_SEND_ACC		0x00004
-#define LAPIC_ESR_RECV_ACC		0x00008
-#define LAPIC_ESR_SENDILL		0x00020
-#define LAPIC_ESR_RECVILL		0x00040
-#define LAPIC_ESR_ILLREGA		0x00080
-#define LAPIC_ICR			0x300
-#define LAPIC_DEST_SELF			0x40000
-#define LAPIC_DEST_ALLINC		0x80000
-#define LAPIC_DEST_ALLBUT		0xC0000
-#define LAPIC_ICR_RR_MASK		0x30000
-#define LAPIC_ICR_RR_INVALID		0x00000
-#define LAPIC_ICR_RR_INPROG		0x10000
-#define LAPIC_ICR_RR_VALID		0x20000
-#define LAPIC_INT_LEVELTRIG		0x08000
-#define LAPIC_INT_ASSERT		0x04000
-#define LAPIC_ICR_BUSY			0x01000
-#define LAPIC_DEST_LOGICAL		0x00800
-#define LAPIC_DM_FIXED			0x00000
-#define LAPIC_DM_LOWEST			0x00100
-#define LAPIC_DM_SMI			0x00200
-#define LAPIC_DM_REMRD			0x00300
-#define LAPIC_DM_NMI			0x00400
-#define LAPIC_DM_INIT			0x00500
-#define LAPIC_DM_STARTUP		0x00600
-#define LAPIC_DM_EXTINT			0x00700
-#define LAPIC_VECTOR_MASK		0x000FF
-#define LAPIC_ICR2			0x310
-#define GET_LAPIC_DEST_FIELD(x)		(((x) >> 24) & 0xFF)
-#define SET_LAPIC_DEST_FIELD(x)		((x) << 24)
-#define LAPIC_LVTT			0x320
-#define LAPIC_LVTPC			0x340
-#define LAPIC_LVT0			0x350
-#define LAPIC_LVT_TIMER_BASE_MASK	(0x3 << 18)
-#define GET_LAPIC_TIMER_BASE(x)		(((x) >> 18) & 0x3)
-#define SET_LAPIC_TIMER_BASE(x)		(((x) << 18))
-#define LAPIC_TIMER_BASE_CLKIN		0x0
-#define LAPIC_TIMER_BASE_TMBASE		0x1
-#define LAPIC_TIMER_BASE_DIV		0x2
-#define LAPIC_LVT_TIMER_PERIODIC	(1 << 17)
-#define LAPIC_LVT_MASKED		(1 << 16)
-#define LAPIC_LVT_LEVEL_TRIGGER		(1 << 15)
-#define LAPIC_LVT_REMOTE_IRR		(1 << 14)
-#define LAPIC_INPUT_POLARITY		(1 << 13)
-#define LAPIC_SEND_PENDING		(1 << 12)
-#define LAPIC_LVT_RESERVED_1		(1 << 11)
-#define LAPIC_DELIVERY_MODE_MASK	(7 << 8)
-#define LAPIC_DELIVERY_MODE_FIXED	(0 << 8)
-#define LAPIC_DELIVERY_MODE_NMI		(4 << 8)
-#define LAPIC_DELIVERY_MODE_EXTINT	(7 << 8)
-#define GET_LAPIC_DELIVERY_MODE(x)	(((x) >> 8) & 0x7)
-#define SET_LAPIC_DELIVERY_MODE(x, y)	(((x) & ~0x700)|((y) << 8))
-#define LAPIC_MODE_FIXED		0x0
-#define LAPIC_MODE_NMI			0x4
-#define LAPIC_MODE_EXINT		0x7
-#define LAPIC_LVT1			0x360
-#define LAPIC_LVTERR			0x370
-#define LAPIC_TMICT			0x380
-#define LAPIC_TMCCT			0x390
-#define LAPIC_TDCR			0x3E0
-#define LAPIC_TDR_DIV_TMBASE		(1 << 2)
-#define LAPIC_TDR_DIV_1			0xB
-#define LAPIC_TDR_DIV_2			0x0
-#define LAPIC_TDR_DIV_4			0x1
-#define LAPIC_TDR_DIV_8			0x2
-#define LAPIC_TDR_DIV_16		0x3
-#define LAPIC_TDR_DIV_32		0x8
-#define LAPIC_TDR_DIV_64		0x9
-#define LAPIC_TDR_DIV_128		0xA
-
-#endif
-- 
1.8.2.1

[U-Boot] [PATCH v2 9/9] x86: crownbay: Add MP initialization

[Bin Meng]

Intel Crown Bay board has a TunnelCreek processor which supports
hyper-threading. Add /cpus node in the crownbay.dts and enable
the MP initialization.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

---

Changes in v2:
- Move CONFIG_MAX_CPUS after CONFIG_SMP in crownbay_defconfig to
  match the order in Kconfig

 arch/x86/dts/crownbay.dts  | 20 ++++++++++++++++++++
 configs/crownbay_defconfig |  4 ++++
 2 files changed, 24 insertions(+)

diff --git a/arch/x86/dts/crownbay.dts b/arch/x86/dts/crownbay.dts
index d68efda..1ec90cd 100644
--- a/arch/x86/dts/crownbay.dts
+++ b/arch/x86/dts/crownbay.dts
@@ -23,6 +23,26 @@
 		silent_console = <0>;
 	};
 
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at 0 {
+			device_type = "cpu";
+			compatible = "cpu-x86";
+			reg = <0>;
+			intel,apic-id = <0>;
+		};
+
+		cpu at 1 {
+			device_type = "cpu";
+			compatible = "cpu-x86";
+			reg = <1>;
+			intel,apic-id = <1>;
+		};
+
+	};
+
 	gpioa {
 		compatible = "intel,ich6-gpio";
 		u-boot,dm-pre-reloc;
diff --git a/configs/crownbay_defconfig b/configs/crownbay_defconfig
index d3a370d..d21177d 100644
--- a/configs/crownbay_defconfig
+++ b/configs/crownbay_defconfig
@@ -2,6 +2,10 @@ CONFIG_X86=y
 CONFIG_VENDOR_INTEL=y
 CONFIG_DEFAULT_DEVICE_TREE="crownbay"
 CONFIG_TARGET_CROWNBAY=y
+CONFIG_SMP=y
+CONFIG_MAX_CPUS=2
 CONFIG_GENERATE_PIRQ_TABLE=y
+CONFIG_CMD_CPU=y
 CONFIG_CMD_NET=y
 CONFIG_OF_CONTROL=y
+CONFIG_CPU=y
-- 
1.8.2.1