diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/samsung/exynos5420/dmc.h | 2 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5420/dmc_init_ddr3.c | 34 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5420/setup.h | 2 | ||||
| -rw-r--r-- | src/mainboard/google/pit/memory.c | 5 |
4 files changed, 25 insertions, 18 deletions
diff --git a/src/cpu/samsung/exynos5420/dmc.h b/src/cpu/samsung/exynos5420/dmc.h index c974db28e1..89fac429b7 100644 --- a/src/cpu/samsung/exynos5420/dmc.h +++ b/src/cpu/samsung/exynos5420/dmc.h @@ -291,7 +291,7 @@ enum mem_manuf { }; enum { - MEM_TIMINGS_MSR_COUNT = 4, + MEM_TIMINGS_MSR_COUNT = 5, }; diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c index e236e99022..a758433487 100644 --- a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c +++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c @@ -99,8 +99,8 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) */ val = (0x7 << CA_CK_DRVR_DS_OFFSET) | (0x7 << CA_CKE_DRVR_DS_OFFSET) | (0x7 << CA_CS_DRVR_DS_OFFSET) | (0x7 << CA_ADR_DRVR_DS_OFFSET); - val |= (0x6 << DA_3_DS_OFFSET) | (0x6 << DA_2_DS_OFFSET) | - (0x6 << DA_1_DS_OFFSET) | (0x6 << DA_0_DS_OFFSET); + val |= (0x7 << DA_3_DS_OFFSET) | (0x7 << DA_2_DS_OFFSET) | + (0x7 << DA_1_DS_OFFSET) | (0x7 << DA_0_DS_OFFSET); writel(val, &phy0_ctrl->phy_con39); writel(val, &phy1_ctrl->phy_con39); @@ -112,8 +112,12 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) clrbits_le32(&phy1_ctrl->phy_con16, ZQ_CLK_DIV_EN); /* DQ Signal */ - writel(mem->phy0_pulld_dqs, &phy0_ctrl->phy_con14); - writel(mem->phy1_pulld_dqs, &phy1_ctrl->phy_con14); + val = readl(&phy0_ctrl->phy_con14); + val |= mem->phy0_pulld_dqs; + writel(val, &phy0_ctrl->phy_con14); + val = readl(&phy1_ctrl->phy_con14); + val |= mem->phy1_pulld_dqs; + writel(val, &phy1_ctrl->phy_con14); val = MEM_TERM_EN | PHY_TERM_EN; writel(val, &drex0->phycontrol0); @@ -225,8 +229,8 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) if (mem->gate_leveling_enable) { - setbits_le32(&phy0_ctrl->phy_con0, CTRL_ATGATE); - setbits_le32(&phy1_ctrl->phy_con0, CTRL_ATGATE); + writel(PHY_CON0_RESET_VAL, &phy0_ctrl->phy_con0); + writel(PHY_CON0_RESET_VAL, &phy1_ctrl->phy_con0); setbits_le32(&phy0_ctrl->phy_con0, P0_CMD_EN); setbits_le32(&phy1_ctrl->phy_con0, P0_CMD_EN); @@ -236,12 +240,6 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) writel(val, &phy0_ctrl->phy_con2); writel(val, &phy1_ctrl->phy_con2); - val = PHY_CON0_RESET_VAL; - val |= P0_CMD_EN; - val |= BYTE_RDLVL_EN; - writel(val, &phy0_ctrl->phy_con0); - writel(val, &phy1_ctrl->phy_con0); - val = readl(&phy0_ctrl->phy_con1); val |= (RDLVL_PASS_ADJ_VAL << RDLVL_PASS_ADJ_OFFSET); writel(val, &phy0_ctrl->phy_con1); @@ -339,12 +337,18 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) writel(mem->memcontrol, &drex0->memcontrol); writel(mem->memcontrol, &drex1->memcontrol); - /* Set DMC Concontrol and enable auto-refresh counter */ + /* + * Set DMC Concontrol: Enable auto-refresh counter, provide + * read data fetch cycles and enable DREX auto set powerdown + * for input buffer of I/O in none read memory state. + */ writel(mem->concontrol | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT) | - (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT), + (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT)| + DMC_CONCONTROL_IO_PD_CON(0x2), &drex0->concontrol); writel(mem->concontrol | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT) | - (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT), + (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT)| + DMC_CONCONTROL_IO_PD_CON(0x2), &drex1->concontrol); /* Enable Clock Gating Control for DMC diff --git a/src/cpu/samsung/exynos5420/setup.h b/src/cpu/samsung/exynos5420/setup.h index 9dc49d8d10..3bd36b2e75 100644 --- a/src/cpu/samsung/exynos5420/setup.h +++ b/src/cpu/samsung/exynos5420/setup.h @@ -181,6 +181,8 @@ struct exynos5_phy_control; #define CLK_DIV_FSYS1_VAL 0x04f13c4f #define CLK_DIV_FSYS2_VAL 0x041d0000 +#define DMC_CONCONTROL_IO_PD_CON(x) (x << 6) + /* CLK_DIV_CPU1 */ #define HPM_RATIO 0x2 #define COPY_RATIO 0x0 diff --git a/src/mainboard/google/pit/memory.c b/src/mainboard/google/pit/memory.c index 74f3e6eb9c..ddd7aa0ff1 100644 --- a/src/mainboard/google/pit/memory.c +++ b/src/mainboard/google/pit/memory.c @@ -32,7 +32,8 @@ const struct mem_timings mem_timings = { .mem_type = DDR_MODE_DDR3, .frequency_mhz = 800, .direct_cmd_msr = { - 0x00020018, 0x00030000, 0x00010002, 0x00000d70 + 0x00020018, 0x00030000, 0x00010046, 0x00000d70, + 0x00000c70 }, .timing_ref = 0x000000bb, .timing_row = 0x6836650f, @@ -65,7 +66,7 @@ const struct mem_timings mem_timings = { .rd_fetch = 0x3, - .zq_mode_dds = 0x6, + .zq_mode_dds = 0x7, .zq_mode_term = 0x1, .zq_mode_noterm = 1, |