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-rw-r--r--src/cpu/samsung/exynos5420/dmc_init_ddr3.c36
-rw-r--r--src/mainboard/google/pit/memory.c6
2 files changed, 24 insertions, 18 deletions
diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
index a758433487..1126dca130 100644
--- a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
+++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
@@ -44,7 +44,7 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset)
struct exynos5_dmc *drex0, *drex1;
struct exynos5_tzasc *tzasc0, *tzasc1;
u32 val, nLockR, nLockW_phy0, nLockW_phy1;
- int i;
+ int i, chip;
phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE;
phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE;
@@ -218,12 +218,14 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset)
* Send auto refresh command for DRAM refresh.
*/
for (i = 0; i < 128; i++) {
- writel(DIRECT_CMD_REFA, &drex0->directcmd);
- writel(DIRECT_CMD_REFA | (0x1 << DIRECT_CMD_CHIP_SHIFT),
- &drex0->directcmd);
- writel(DIRECT_CMD_REFA, &drex1->directcmd);
- writel(DIRECT_CMD_REFA | (0x1 << DIRECT_CMD_CHIP_SHIFT),
- &drex1->directcmd);
+ for (chip = 0; chip < mem->chips_to_configure; chip++) {
+ writel(DIRECT_CMD_REFA |
+ (chip << DIRECT_CMD_CHIP_SHIFT),
+ &drex0->directcmd);
+ writel(DIRECT_CMD_REFA |
+ (chip << DIRECT_CMD_CHIP_SHIFT),
+ &drex1->directcmd);
+ }
}
}
@@ -263,10 +265,12 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset)
writel(nLockR, &phy1_ctrl->phy_con12);
val = (0x3 << DIRECT_CMD_BANK_SHIFT) | 0x4;
- writel(val, &drex0->directcmd);
- writel(val | (0x1 << DIRECT_CMD_CHIP_SHIFT), &drex0->directcmd);
- writel(val, &drex1->directcmd);
- writel(val | (0x1 << DIRECT_CMD_CHIP_SHIFT), &drex1->directcmd);
+ for (chip = 0; chip < mem->chips_to_configure; chip++) {
+ writel(val | (chip << DIRECT_CMD_CHIP_SHIFT),
+ &drex0->directcmd);
+ writel(val | (chip << DIRECT_CMD_CHIP_SHIFT),
+ &drex1->directcmd);
+ }
setbits_le32(&phy0_ctrl->phy_con2, RDLVL_GATE_EN);
setbits_le32(&phy1_ctrl->phy_con2, RDLVL_GATE_EN);
@@ -316,10 +320,12 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset)
writel(0, &phy1_ctrl->phy_con14);
val = (0x3 << DIRECT_CMD_BANK_SHIFT);
- writel(val, &drex0->directcmd);
- writel(val | (0x1 << DIRECT_CMD_CHIP_SHIFT), &drex0->directcmd);
- writel(val, &drex1->directcmd);
- writel(val | (0x1 << DIRECT_CMD_CHIP_SHIFT), &drex1->directcmd);
+ for (chip = 0; chip < mem->chips_to_configure; chip++) {
+ writel(val | (chip << DIRECT_CMD_CHIP_SHIFT),
+ &drex0->directcmd);
+ writel(val | (chip << DIRECT_CMD_CHIP_SHIFT),
+ &drex1->directcmd);
+ }
/* Common Settings for Leveling */
val = PHY_CON12_RESET_VAL;
diff --git a/src/mainboard/google/pit/memory.c b/src/mainboard/google/pit/memory.c
index ddd7aa0ff1..4ac3d0c999 100644
--- a/src/mainboard/google/pit/memory.c
+++ b/src/mainboard/google/pit/memory.c
@@ -86,7 +86,7 @@ const struct mem_timings mem_timings = {
DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) |
DMC_MEMCONTROL_MEM_TYPE_DDR3 |
DMC_MEMCONTROL_MEM_WIDTH_32BIT |
- DMC_MEMCONTROL_NUM_CHIP_2 |
+ DMC_MEMCONTROL_NUM_CHIP_1 |
DMC_MEMCONTROL_BL_8 |
DMC_MEMCONTROL_PZQ_DISABLE |
DMC_MEMCONTROL_MRR_BYTE_7_0,
@@ -104,8 +104,8 @@ const struct mem_timings mem_timings = {
DMC_CONCONTROL_AREF_EN_DISABLE |
DMC_CONCONTROL_IO_PD_CON_DISABLE,
.dmc_channels = 1,
- .chips_per_channel = 2,
- .chips_to_configure = 2,
+ .chips_per_channel = 1,
+ .chips_to_configure = 1,
.send_zq_init = 1,
.gate_leveling_enable = 1,
};