ARM: EXYNOS: Support secondary CPU boot of Exynos3250
This patch fix the offset of CPU boot address and don't
need to send smc call of SMC_CMD_CPU1BOOT command for
secondary CPU boot because Exynos3250 removes WFE in
secure mode.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index f6cb510..1120c28 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -30,6 +30,13 @@
static int exynos_cpu_boot(int cpu)
{
/*
+ * Exynos3250 doesn't need to send smc command for secondary CPU boot
+ * because Exynos3250 removes WFE in secure mode.
+ */
+ if (soc_is_exynos3250())
+ return 0;
+
+ /*
* The second parameter of SMC_CMD_CPU1BOOT command means CPU id.
* But, Exynos4212 has only one secondary CPU so second parameter
* isn't used for informing secure firmware about CPU id.
@@ -45,7 +52,7 @@
{
void __iomem *boot_reg = S5P_VA_SYSRAM_NS + 0x1c;
- if (!soc_is_exynos4212())
+ if (!soc_is_exynos4212() && !soc_is_exynos3250())
boot_reg += 4*cpu;
__raw_writel(boot_addr, boot_reg);