diff options
| author | Chanwoo Choi <cw00.choi@samsung.com> | 2014-05-25 23:12:32 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-05-30 21:43:38 +0400 |
| commit | 6457158acc30ece42f62d50f4b8f19264203b15e (patch) | |
| tree | 709a82c40374c85b78c24762c06c0b0bde35b4d8 | |
| parent | 940bc58de51454f4f6c4be754ad62bd0cb8bc396 (diff) | |
| download | linux-6457158acc30ece42f62d50f4b8f19264203b15e.tar.xz | |
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>
| -rw-r--r-- | arch/arm/mach-exynos/firmware.c | 9 |
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); |