| Message ID | 1399986308-23744-3-git-send-email-cw00.choi@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, On 13.05.2014 15:05, Chanwoo Choi wrote: > 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> > --- > arch/arm/mach-exynos/firmware.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c > index 739bdc8..eb91d23 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. > @@ -50,7 +57,7 @@ static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr) > > boot_reg = sysram_ns_base_addr + 0x1c; > > - if (!soc_is_exynos4212()) > + if (!soc_is_exynos4212() && !soc_is_exynos3250()) > boot_reg += 4*cpu; > > __raw_writel(boot_addr, boot_reg); > Reviewed-by: Tomasz Figa <t.figa@samsung.com> Best regards, Tomasz -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 739bdc8..eb91d23 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. @@ -50,7 +57,7 @@ static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr) boot_reg = sysram_ns_base_addr + 0x1c; - if (!soc_is_exynos4212()) + if (!soc_is_exynos4212() && !soc_is_exynos3250()) boot_reg += 4*cpu; __raw_writel(boot_addr, boot_reg);