diff options
Diffstat (limited to 'target/linux/ramips/patches-3.8/0042-MIPS-ralink-add-memory-definition-for-MT7620.patch')
| -rw-r--r-- | target/linux/ramips/patches-3.8/0042-MIPS-ralink-add-memory-definition-for-MT7620.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.8/0042-MIPS-ralink-add-memory-definition-for-MT7620.patch b/target/linux/ramips/patches-3.8/0042-MIPS-ralink-add-memory-definition-for-MT7620.patch new file mode 100644 index 0000000000..da2610ce9c --- /dev/null +++ b/target/linux/ramips/patches-3.8/0042-MIPS-ralink-add-memory-definition-for-MT7620.patch @@ -0,0 +1,65 @@ +From e7dfbb1eafed754442099a33492a9e90fa33d3fa Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 14 Apr 2013 09:55:29 +0200 +Subject: [PATCH 42/79] MIPS: ralink: add memory definition for MT7620 + +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/5183/ +--- + arch/mips/include/asm/mach-ralink/mt7620.h | 8 ++++++++ + arch/mips/ralink/mt7620.c | 20 ++++++++++++++++++++ + 2 files changed, 28 insertions(+) + +diff --git a/arch/mips/include/asm/mach-ralink/mt7620.h b/arch/mips/include/asm/mach-ralink/mt7620.h +index b272649..9809972 100644 +--- a/arch/mips/include/asm/mach-ralink/mt7620.h ++++ b/arch/mips/include/asm/mach-ralink/mt7620.h +@@ -50,6 +50,14 @@ + #define SYSCFG0_DRAM_TYPE_DDR1 1 + #define SYSCFG0_DRAM_TYPE_DDR2 2 + ++#define MT7620_DRAM_BASE 0x0 ++#define MT7620_SDRAM_SIZE_MIN 2 ++#define MT7620_SDRAM_SIZE_MAX 64 ++#define MT7620_DDR1_SIZE_MIN 32 ++#define MT7620_DDR1_SIZE_MAX 128 ++#define MT7620_DDR2_SIZE_MIN 32 ++#define MT7620_DDR2_SIZE_MAX 256 ++ + #define MT7620_GPIO_MODE_I2C BIT(0) + #define MT7620_GPIO_MODE_UART0_SHIFT 2 + #define MT7620_GPIO_MODE_UART0_MASK 0x7 +diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c +index eb00ab8..98ddb93 100644 +--- a/arch/mips/ralink/mt7620.c ++++ b/arch/mips/ralink/mt7620.c +@@ -211,4 +211,24 @@ void prom_soc_init(struct ralink_soc_info *soc_info) + + cfg0 = __raw_readl(sysc + SYSC_REG_SYSTEM_CONFIG0); + dram_type = (cfg0 >> SYSCFG0_DRAM_TYPE_SHIFT) & SYSCFG0_DRAM_TYPE_MASK; ++ ++ switch (dram_type) { ++ case SYSCFG0_DRAM_TYPE_SDRAM: ++ soc_info->mem_size_min = MT7620_SDRAM_SIZE_MIN; ++ soc_info->mem_size_max = MT7620_SDRAM_SIZE_MAX; ++ break; ++ ++ case SYSCFG0_DRAM_TYPE_DDR1: ++ soc_info->mem_size_min = MT7620_DDR1_SIZE_MIN; ++ soc_info->mem_size_max = MT7620_DDR1_SIZE_MAX; ++ break; ++ ++ case SYSCFG0_DRAM_TYPE_DDR2: ++ soc_info->mem_size_min = MT7620_DDR2_SIZE_MIN; ++ soc_info->mem_size_max = MT7620_DDR2_SIZE_MAX; ++ break; ++ default: ++ BUG(); ++ } ++ soc_info->mem_base = MT7620_DRAM_BASE; + } +-- +1.7.10.4 + |