diff options
Diffstat (limited to 'arch/arm/cpu/armv7/exynos/dmc_common.c')
-rw-r--r-- | arch/arm/cpu/armv7/exynos/dmc_common.c | 60 |
1 files changed, 26 insertions, 34 deletions
diff --git a/arch/arm/cpu/armv7/exynos/dmc_common.c b/arch/arm/cpu/armv7/exynos/dmc_common.c index 53cfe6edb1..cca925e42c 100644 --- a/arch/arm/cpu/armv7/exynos/dmc_common.c +++ b/arch/arm/cpu/armv7/exynos/dmc_common.c @@ -1,5 +1,5 @@ /* - * Mem setup common file for different types of DDR present on SMDK5250 boards. + * Mem setup common file for different types of DDR present on Exynos boards. * * Copyright (C) 2012 Samsung Electronics * @@ -15,9 +15,9 @@ #define ZQ_INIT_TIMEOUT 10000 -int dmc_config_zq(struct mem_timings *mem, - struct exynos5_phy_control *phy0_ctrl, - struct exynos5_phy_control *phy1_ctrl) +int dmc_config_zq(struct mem_timings *mem, uint32_t *phy0_con16, + uint32_t *phy1_con16, uint32_t *phy0_con17, + uint32_t *phy1_con17) { unsigned long val = 0; int i; @@ -31,19 +31,19 @@ int dmc_config_zq(struct mem_timings *mem, val |= mem->zq_mode_dds << PHY_CON16_ZQ_MODE_DDS_SHIFT; val |= mem->zq_mode_term << PHY_CON16_ZQ_MODE_TERM_SHIFT; val |= ZQ_CLK_DIV_EN; - writel(val, &phy0_ctrl->phy_con16); - writel(val, &phy1_ctrl->phy_con16); + writel(val, phy0_con16); + writel(val, phy1_con16); /* Disable termination */ if (mem->zq_mode_noterm) val |= PHY_CON16_ZQ_MODE_NOTERM_MASK; - writel(val, &phy0_ctrl->phy_con16); - writel(val, &phy1_ctrl->phy_con16); + writel(val, phy0_con16); + writel(val, phy1_con16); /* ZQ_MANUAL_START: Enable */ val |= ZQ_MANUAL_STR; - writel(val, &phy0_ctrl->phy_con16); - writel(val, &phy1_ctrl->phy_con16); + writel(val, phy0_con16); + writel(val, phy1_con16); /* ZQ_MANUAL_START: Disable */ val &= ~ZQ_MANUAL_STR; @@ -53,47 +53,47 @@ int dmc_config_zq(struct mem_timings *mem, * we are looping for the ZQ_init to complete. */ i = ZQ_INIT_TIMEOUT; - while ((readl(&phy0_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) { + while ((readl(phy0_con17) & ZQ_DONE) != ZQ_DONE && i > 0) { sdelay(100); i--; } if (!i) return -1; - writel(val, &phy0_ctrl->phy_con16); + writel(val, phy0_con16); i = ZQ_INIT_TIMEOUT; - while ((readl(&phy1_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) { + while ((readl(phy1_con17) & ZQ_DONE) != ZQ_DONE && i > 0) { sdelay(100); i--; } if (!i) return -1; - writel(val, &phy1_ctrl->phy_con16); + writel(val, phy1_con16); return 0; } -void update_reset_dll(struct exynos5_dmc *dmc, enum ddr_mode mode) +void update_reset_dll(uint32_t *phycontrol0, enum ddr_mode mode) { unsigned long val; if (mode == DDR_MODE_DDR3) { val = MEM_TERM_EN | PHY_TERM_EN | DMC_CTRL_SHGATE; - writel(val, &dmc->phycontrol0); + writel(val, phycontrol0); } /* Update DLL Information: Force DLL Resyncronization */ - val = readl(&dmc->phycontrol0); + val = readl(phycontrol0); val |= FP_RSYNC; - writel(val, &dmc->phycontrol0); + writel(val, phycontrol0); /* Reset Force DLL Resyncronization */ - val = readl(&dmc->phycontrol0); + val = readl(phycontrol0); val &= ~FP_RSYNC; - writel(val, &dmc->phycontrol0); + writel(val, phycontrol0); } -void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc) +void dmc_config_mrs(struct mem_timings *mem, uint32_t *directcmd) { int channel, chip; @@ -107,7 +107,7 @@ void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc) mask |= chip << DIRECT_CMD_CHIP_SHIFT; /* Sending NOP command */ - writel(DIRECT_CMD_NOP | mask, &dmc->directcmd); + writel(DIRECT_CMD_NOP | mask, directcmd); /* * TODO(alim.akhtar@samsung.com): Do we need these @@ -119,14 +119,14 @@ void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc) /* Sending EMRS/MRS commands */ for (i = 0; i < MEM_TIMINGS_MSR_COUNT; i++) { writel(mem->direct_cmd_msr[i] | mask, - &dmc->directcmd); + directcmd); sdelay(0x10000); } if (mem->send_zq_init) { /* Sending ZQINIT command */ writel(DIRECT_CMD_ZQINIT | mask, - &dmc->directcmd); + directcmd); sdelay(10000); } @@ -134,7 +134,7 @@ void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc) } } -void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc) +void dmc_config_prech(struct mem_timings *mem, uint32_t *directcmd) { int channel, chip; @@ -146,20 +146,12 @@ void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc) mask |= chip << DIRECT_CMD_CHIP_SHIFT; /* PALL (all banks precharge) CMD */ - writel(DIRECT_CMD_PALL | mask, &dmc->directcmd); + writel(DIRECT_CMD_PALL | mask, directcmd); sdelay(0x10000); } } } -void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc) -{ - writel(mem->memconfig, &dmc->memconfig0); - writel(mem->memconfig, &dmc->memconfig1); - writel(DMC_MEMBASECONFIG0_VAL, &dmc->membaseconfig0); - writel(DMC_MEMBASECONFIG1_VAL, &dmc->membaseconfig1); -} - void mem_ctrl_init(int reset) { struct spl_machine_param *param = spl_get_machine_params(); |