diff options
| -rw-r--r-- | src/cpu/samsung/exynos5250/dmc_init_ddr3.c | 14 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5250/setup.h | 4 | ||||
| -rw-r--r-- | src/mainboard/google/snow/romstage.c | 2 |
3 files changed, 14 insertions, 6 deletions
diff --git a/src/cpu/samsung/exynos5250/dmc_init_ddr3.c b/src/cpu/samsung/exynos5250/dmc_init_ddr3.c index 5bb8a372ff..132471de74 100644 --- a/src/cpu/samsung/exynos5250/dmc_init_ddr3.c +++ b/src/cpu/samsung/exynos5250/dmc_init_ddr3.c @@ -61,7 +61,8 @@ static void reset_phy_ctrl(void) udelay(500); } -int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) +int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size, + int mem_reset) { unsigned int val; struct exynos5_phy_control *phy0_ctrl, *phy1_ctrl; @@ -71,9 +72,14 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE; phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE; dmc = (struct exynos5_dmc *)EXYNOS5_DMC_CTRL_BASE; - printk(BIOS_SPEW, "ddr3_mem_ctrl_init: reset phy: "); - reset_phy_ctrl(); - printk(BIOS_SPEW, "done\n"); + + if (mem_reset) { + printk(BIOS_SPEW, "%s: reset phy: ", __func__); + reset_phy_ctrl(); + printk(BIOS_SPEW, "done\n"); + } else { + printk(BIOS_SPEW, "%s: skip mem_reset.\n", __func__); + } /* Set Impedance Output Driver */ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set Impedance Output Driver\n"); diff --git a/src/cpu/samsung/exynos5250/setup.h b/src/cpu/samsung/exynos5250/setup.h index 4f7f58cbeb..f205b4d176 100644 --- a/src/cpu/samsung/exynos5250/setup.h +++ b/src/cpu/samsung/exynos5250/setup.h @@ -702,9 +702,11 @@ void mem_ctrl_init(void); * which the DMC uses to decide how to split a memory * chunk into smaller chunks to support concurrent * accesses; may vary across boards. + * @param mem_reset Reset memory during initialization. * @return 0 if ok, SETUP_ERR_... if there is a problem */ -int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size); +int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size, + int mem_reset); void tzpc_init(void); /* diff --git a/src/mainboard/google/snow/romstage.c b/src/mainboard/google/snow/romstage.c index 41b88e1e5f..edbe00919f 100644 --- a/src/mainboard/google/snow/romstage.c +++ b/src/mainboard/google/snow/romstage.c @@ -184,7 +184,7 @@ void main(void) mem->mpll_mdiv, mem->frequency_mhz); - ret = ddr3_mem_ctrl_init(mem, DMC_INTERLEAVE_SIZE); + ret = ddr3_mem_ctrl_init(mem, DMC_INTERLEAVE_SIZE, 1); if (ret) { printk(BIOS_ERR, "Memory controller init failed, err: %x\n", ret); |