diff options
Diffstat (limited to 'arch/arm/mach-exynos/firmware.c')
| -rw-r--r-- | arch/arm/mach-exynos/firmware.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 483dfcd69065..eb91d2350f8c 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -29,6 +29,21 @@ 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. + */ + if (soc_is_exynos4212()) + cpu = 0; + exynos_smc(SMC_CMD_CPU1BOOT, cpu, 0, 0); return 0; } @@ -40,7 +55,10 @@ static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr) if (!sysram_ns_base_addr) return -ENODEV; - boot_reg = sysram_ns_base_addr + 0x1c + 4*cpu; + boot_reg = sysram_ns_base_addr + 0x1c; + + if (!soc_is_exynos4212() && !soc_is_exynos3250()) + boot_reg += 4*cpu; __raw_writel(boot_addr, boot_reg); return 0; |