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Subject[PATCH 04/27] ARM: EXYNOS: Support secondary CPU boot of Exynos4212
Date
From: Kyungmin Park <kyungmin.park@samsung.com>

This patch fix the offset of CPU boot address and change parameter of smc call
of SMC_CMD_CPU1BOOT command for Exynos4212.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/mach-exynos/firmware.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index 932129e..91a911d 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -18,6 +18,8 @@

#include <mach/map.h>

+#include <plat/cpu.h>
+
#include "smc.h"

static int exynos_do_idle(void)
@@ -28,14 +30,22 @@ static int exynos_do_idle(void)

static int exynos_cpu_boot(int cpu)
{
- exynos_smc(SMC_CMD_CPU1BOOT, cpu, 0, 0);
+ if (soc_is_exynos4212())
+ exynos_smc(SMC_CMD_CPU1BOOT, 0, 0, 0);
+ else
+ exynos_smc(SMC_CMD_CPU1BOOT, cpu, 0, 0);
return 0;
}

static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr)
{
- void __iomem *boot_reg = S5P_VA_SYSRAM_NS + 0x1c + 4*cpu;
+ void __iomem *boot_reg = S5P_VA_SYSRAM_NS + 0x1c;

+ if (soc_is_exynos4212())
+ goto out;
+ else
+ boot_reg += 4*cpu;
+out:
__raw_writel(boot_addr, boot_reg);
return 0;
}
--
1.8.0


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