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>

1 files changed, 8 insertions, 1 deletions

diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index f6cb510aee85..1120c28394dd 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -30,6 +30,13 @@ static int exynos_do_idle(void)
 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 @@ static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr)
 {
         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);