diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/samsung/exynos5420/dmc_init_ddr3.c | 24 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5420/setup.h | 16 | ||||
| -rw-r--r-- | src/mainboard/google/pit/memory.c | 7 |
3 files changed, 23 insertions, 24 deletions
diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c index 1126dca130..1d7b8a8adb 100644 --- a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c +++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c @@ -145,21 +145,15 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) update_reset_dll(drex0, DDR_MODE_DDR3); update_reset_dll(drex1, DDR_MODE_DDR3); - /* Set Base Address: - * 0x2000_0000 ~ 0x5FFF_FFFF - * 0x6000_0000 ~ 0x9FFF_FFFF - */ - /* MEMBASECONFIG0 */ - val = DMC_MEMBASECONFIGx_CHIP_BASE(DMC_CHIP_BASE_0) | - DMC_MEMBASECONFIGx_CHIP_MASK(DMC_CHIP_MASK); - writel(val, &tzasc0->membaseconfig0); - writel(val, &tzasc1->membaseconfig0); - - /* MEMBASECONFIG1 */ - val = DMC_MEMBASECONFIGx_CHIP_BASE(DMC_CHIP_BASE_1) | - DMC_MEMBASECONFIGx_CHIP_MASK(DMC_CHIP_MASK); - writel(val, &tzasc0->membaseconfig1); - writel(val, &tzasc1->membaseconfig1); + /* MEMBASECONFIG0 (CS0) */ + writel(mem->membaseconfig0, &tzasc0->membaseconfig0); + writel(mem->membaseconfig0, &tzasc1->membaseconfig0); + + /* MEMBASECONFIG1 (CS1) */ + if (mem->chips_per_channel == 2) { + writel(mem->membaseconfig1, &tzasc0->membaseconfig1); + writel(mem->membaseconfig1, &tzasc1->membaseconfig1); + } /* Memory Channel Inteleaving Size * Exynos5420 Channel interleaving = 128 bytes diff --git a/src/cpu/samsung/exynos5420/setup.h b/src/cpu/samsung/exynos5420/setup.h index 3bd36b2e75..950c2c6f85 100644 --- a/src/cpu/samsung/exynos5420/setup.h +++ b/src/cpu/samsung/exynos5420/setup.h @@ -136,6 +136,7 @@ struct exynos5_phy_control; #define DMC_MEMCONFIGx_CHIP_COL_10 (3 << 8) #define DMC_MEMCONFIGx_CHIP_ROW_14 (2 << 4) #define DMC_MEMCONFIGx_CHIP_ROW_15 (3 << 4) +#define DMC_MEMCONFIGx_CHIP_ROW_16 (4 << 4) #define DMC_MEMCONFIGx_CHIP_BANK_8 (3 << 0) #define DMC_MEMBASECONFIGx_CHIP_BASE(x) (x << 16) @@ -767,15 +768,12 @@ struct exynos5_phy_control; #define DPWRDN_EN (1 << 1) #define DSREF_EN (1 << 5) -/* As we use channel interleaving, therefore value of the base address - * register must be set as half of the bus base address - * RAM start addess is 0x2000_0000 which means chip_base is 0x20, so - * we need to set half 0x10 to the membaseconfigx registers - * see exynos5420 UM section 17.17.3.21 for more - */ -#define DMC_CHIP_BASE_0 0x10 -#define DMC_CHIP_BASE_1 0x50 -#define DMC_CHIP_MASK 0x7C0 +/* AXI base address mask */ +#define DMC_CHIP_MASK_256MB 0x7f0 +#define DMC_CHIP_MASK_512MB 0x7e0 +#define DMC_CHIP_MASK_1GB 0x7c0 +#define DMC_CHIP_MASK_2GB 0x780 +#define DMC_CHIP_MASK_4GB 0x700 #define MEMBASECONFIG_CHIP_MASK_VAL 0x7E0 #define MEMBASECONFIG_CHIP_MASK_OFFSET 0 diff --git a/src/mainboard/google/pit/memory.c b/src/mainboard/google/pit/memory.c index 4ac3d0c999..0c30773bdd 100644 --- a/src/mainboard/google/pit/memory.c +++ b/src/mainboard/google/pit/memory.c @@ -90,6 +90,13 @@ const struct mem_timings mem_timings = { DMC_MEMCONTROL_BL_8 | DMC_MEMCONTROL_PZQ_DISABLE | DMC_MEMCONTROL_MRR_BYTE_7_0, + /* + * For channel interleaving, the chip_base needs to be set to + * half the bus address. So for a base address of 0x2000_0000, + * the chip_base value is 0x20 without interleaving and 0x10 + * with channel interleaving. See note in section 17.14. + */ + .membaseconfig0 = (0x10 << 16) | DMC_CHIP_MASK_1GB, .memconfig = DMC_MEMCONFIG_CHIP_MAP_SPLIT | DMC_MEMCONFIGx_CHIP_COL_10 | DMC_MEMCONFIGx_CHIP_ROW_15 | |