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Subject[PATCH 02/27] ARM: EXYNOS: Add IO mapping for non-secure SYSRAM of Exynos3250
Date
The non-secure SYSRAM is used for secondary CPU bring-up. This patch add
IO mapping for non-scure SYSRAM.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/mach-exynos/exynos.c | 12 ++++++++++++
arch/arm/mach-exynos/include/mach/map.h | 1 +
2 files changed, 13 insertions(+)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index b134868..cad3bfd 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -35,6 +35,15 @@
#define L2_AUX_VAL 0x7C470001
#define L2_AUX_MASK 0xC200ffff

+static struct map_desc exynos3250_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S5P_VA_SYSRAM_NS,
+ .pfn = __phys_to_pfn(EXYNOS3_PA_SYSRAM_NS),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+};
+
static struct map_desc exynos4_iodesc[] __initdata = {
{
.virtual = (unsigned long)S3C_VA_SYS,
@@ -275,6 +284,9 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
*/
static void __init exynos_map_io(void)
{
+ if (soc_is_exynos3250())
+ iotable_init(exynos3250_iodesc, ARRAY_SIZE(exynos3250_iodesc));
+
if (soc_is_exynos4())
iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));

diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 7b046b5..a53981b 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -26,6 +26,7 @@
#define EXYNOS4_PA_SYSRAM0 0x02025000
#define EXYNOS4_PA_SYSRAM1 0x02020000
#define EXYNOS5_PA_SYSRAM 0x02020000
+#define EXYNOS3_PA_SYSRAM_NS 0x0205F000
#define EXYNOS4210_PA_SYSRAM_NS 0x0203F000
#define EXYNOS4x12_PA_SYSRAM_NS 0x0204F000
#define EXYNOS5250_PA_SYSRAM_NS 0x0204F000
--
1.8.0


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