MIPS: ralink: add memory definition for RT3883

Populate struct soc_info with the data that describes our RAM window.

Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5182/

2 files changed, 8 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-ralink/rt3883.h b/arch/mips/include/asm/mach-ralink/rt3883.h
index 3507057cca96..058382f37f92 100644
--- a/arch/mips/include/asm/mach-ralink/rt3883.h
+++ b/arch/mips/include/asm/mach-ralink/rt3883.h
@@ -245,4 +245,8 @@
 #define RT3883_FLASH_CFG_WIDTH_16BIT    0x1
 #define RT3883_FLASH_CFG_WIDTH_32BIT    0x2
 
+#define RT3883_SDRAM_BASE               0x00000000
+#define RT3883_MEM_SIZE_MIN             2
+#define RT3883_MEM_SIZE_MAX             256
+
 #endif /* _RT3883_REGS_H_ */
diff --git a/arch/mips/ralink/rt3883.c b/arch/mips/ralink/rt3883.c
index 6b22f4f550ad..b474ac284b83 100644
--- a/arch/mips/ralink/rt3883.c
+++ b/arch/mips/ralink/rt3883.c
@@ -239,4 +239,8 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
                 name,
                 (id >> RT3883_REVID_VER_ID_SHIFT) & RT3883_REVID_VER_ID_MASK,
                 (id & RT3883_REVID_ECO_ID_MASK));
+
+        soc_info->mem_base = RT3883_SDRAM_BASE;
+        soc_info->mem_size_min = RT3883_MEM_SIZE_MIN;
+        soc_info->mem_size_max = RT3883_MEM_SIZE_MAX;
 }