diff options
Diffstat (limited to 'arch/arm/mach-exynos/firmware.c')
| -rw-r--r-- | arch/arm/mach-exynos/firmware.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 2eaf2dbb8e81..a5e22678e27b 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -60,13 +60,21 @@ 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. + * + * On Exynos5 devices the call is ignored by trustzone firmware. */ - if (soc_is_exynos3250()) + if (!soc_is_exynos4210() && !soc_is_exynos4212() && + !soc_is_exynos4412()) 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; } |