From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Sun, 25 May 2014 19:12:32 +0000 (+0900)
Subject: ARM: EXYNOS: Support secondary CPU boot of Exynos3250
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6457158acc30ece42f62d50f4b8f19264203b15e;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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 f6cb510aee85..1120c28394dd 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -29,6 +29,13 @@ 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
@@ -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);