diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/samsung/exynos5250/dmc_init_ddr3.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/cpu/samsung/exynos5250/dmc_init_ddr3.c b/src/cpu/samsung/exynos5250/dmc_init_ddr3.c index 6ef10bfc91..541f749616 100644 --- a/src/cpu/samsung/exynos5250/dmc_init_ddr3.c +++ b/src/cpu/samsung/exynos5250/dmc_init_ddr3.c @@ -24,6 +24,7 @@ #include <config.h> #include <arch/io.h> +#include <console/console.h> //#include "clock.h" /* FIXME(dhendrix): untangle clock/clk ... */ #include <cpu/samsung/s5p-common/clock.h> @@ -67,28 +68,37 @@ 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"); /* Set Impedance Output Driver */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set Impedance Output Driver\n"); + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: mem->impedance 0x%x\n", + mem->impedance); val = (mem->impedance << CA_CK_DRVR_DS_OFFSET) | (mem->impedance << CA_CKE_DRVR_DS_OFFSET) | (mem->impedance << CA_CS_DRVR_DS_OFFSET) | (mem->impedance << CA_ADR_DRVR_DS_OFFSET); + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: val 0x%x\n", val); writel(val, &phy0_ctrl->phy_con39); writel(val, &phy1_ctrl->phy_con39); /* Set Read Latency and Burst Length for PHY0 and PHY1 */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Set Read Latency and Burst Length for PHY0 and PHY1\n"); val = (mem->ctrl_bstlen << PHY_CON42_CTRL_BSTLEN_SHIFT) | (mem->ctrl_rdlat << PHY_CON42_CTRL_RDLAT_SHIFT); writel(val, &phy0_ctrl->phy_con42); writel(val, &phy1_ctrl->phy_con42); /* ZQ Calibration */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: ZQ Calibration\n"); if (dmc_config_zq(mem, phy0_ctrl, phy1_ctrl)) return SETUP_ERR_ZQ_CALIBRATION_FAILURE; /* DQ Signal */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: DQ Signal\n"); writel(mem->phy0_pulld_dqs, &phy0_ctrl->phy_con14); writel(mem->phy1_pulld_dqs, &phy1_ctrl->phy_con14); @@ -99,6 +109,7 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) update_reset_dll(dmc, DDR_MODE_DDR3); /* DQS Signal */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: DQS Signal\n"); writel(mem->phy0_dqs, &phy0_ctrl->phy_con4); writel(mem->phy1_dqs, &phy1_ctrl->phy_con4); @@ -116,6 +127,7 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) writel(val, &phy1_ctrl->phy_con12); /* Start DLL locking */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Start DLL Locking\n"); writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT), &phy0_ctrl->phy_con12); writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT), @@ -127,9 +139,12 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) &dmc->concontrol); /* Memory Channel Inteleaving Size */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Memory Channel Inteleaving Size\n"); writel(mem->iv_size, &dmc->ivcontrol); /* Set DMC MEMCONTROL register */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set DMC MEMCONTROL register\n"); val = mem->memcontrol & ~DMC_MEMCONTROL_DSREF_ENABLE; writel(val, &dmc->memcontrol); @@ -139,10 +154,13 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) writel(mem->membaseconfig1, &dmc->membaseconfig1); /* Precharge Configuration */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Precharge Configuration\n"); writel(mem->prechconfig_tp_cnt << PRECHCONFIG_TP_CNT_SHIFT, &dmc->prechconfig); /* Power Down mode Configuration */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Power Down mode Configuraation\n"); writel(mem->dpwrdn_cyc << PWRDNCONFIG_DPWRDN_CYC_SHIFT | mem->dsref_cyc << PWRDNCONFIG_DSREF_CYC_SHIFT, &dmc->pwrdnconfig); @@ -150,15 +168,19 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) /* TimingRow, TimingData, TimingPower and Timingaref * values as per Memory AC parameters */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "TimingRow, TimingData, TimingPower and Timingaref\n"); writel(mem->timing_ref, &dmc->timingref); writel(mem->timing_row, &dmc->timingrow); writel(mem->timing_data, &dmc->timingdata); writel(mem->timing_power, &dmc->timingpower); /* Send PALL command */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send PALL Command\n"); dmc_config_prech(mem, dmc); /* Send NOP, MRS and ZQINIT commands */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send NOP, MRS, and ZQINIT\n"); dmc_config_mrs(mem, dmc); if (mem->gate_leveling_enable) { @@ -217,8 +239,10 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) sdelay(100); i--; } - if (!i) + if (!i){ + printk(BIOS_SPEW, "Timeout on RDLVL. No DRAM.\n"); return SETUP_ERR_RDLV_COMPLETE_TIMEOUT; + } writel(CTRL_RDLVL_GATE_DISABLE, &dmc->rdlvl_config); writel(0, &phy0_ctrl->phy_con14); @@ -238,11 +262,14 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size) } /* Send PALL command */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send PALL Command\n"); dmc_config_prech(mem, dmc); writel(mem->memcontrol, &dmc->memcontrol); /* Set DMC Concontrol and enable auto-refresh counter */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Set DMC Concontrol and enable auto-refresh counter\n"); writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT), &dmc->concontrol); return 0; |