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authorSachin Kamat <sachin.kamat@linaro.org>2014-05-13 02:13:44 +0400
committerKukjin Kim <kgene.kim@samsung.com>2014-05-14 22:30:05 +0400
commitb3205dea8fbf6db9b1e46a0dad19a0712fdff44f (patch)
tree440450833abe1f4f5d6654f9f1c9e70f5c0fc4bb /arch/arm/mach-exynos/firmware.c
parent3528dd34b2d3dc642669fd12399e18a16e3aacc8 (diff)
downloadlinux-b3205dea8fbf6db9b1e46a0dad19a0712fdff44f.tar.xz
ARM: EXYNOS: Map SYSRAM through generic DT bindings
Instead of hardcoding the SYSRAM details for each SoC, pass this information through device tree (DT) and make the code SoC agnostic. Generic DT SRAM bindings are used for achieving this. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/firmware.c')
-rw-r--r--arch/arm/mach-exynos/firmware.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index 932129ef26c6..483dfcd69065 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -18,6 +18,7 @@
#include <mach/map.h>
+#include "common.h"
#include "smc.h"
static int exynos_do_idle(void)
@@ -34,7 +35,12 @@ static int exynos_cpu_boot(int cpu)
static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr)
{
- void __iomem *boot_reg = S5P_VA_SYSRAM_NS + 0x1c + 4*cpu;
+ void __iomem *boot_reg;
+
+ if (!sysram_ns_base_addr)
+ return -ENODEV;
+
+ boot_reg = sysram_ns_base_addr + 0x1c + 4*cpu;
__raw_writel(boot_addr, boot_reg);
return 0;