diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-omap2/hsmmc.c | 103 |
1 files changed, 10 insertions, 93 deletions
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 2ef1f87..07d4c7b 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -29,7 +29,6 @@ static u16 control_pbias_offset; static u16 control_devconf1_offset; -static u16 control_mmc1; #define HSMMC_NAME_LEN 9 @@ -121,57 +120,6 @@ static void omap_hsmmc1_after_set_reg(struct device *dev, int slot, } } -static void omap4_hsmmc1_before_set_reg(struct device *dev, int slot, - int power_on, int vdd) -{ - u32 reg; - - /* - * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the - * card with Vcc regulator (from twl4030 or whatever). OMAP has both - * 1.8V and 3.0V modes, controlled by the PBIAS register. - */ - reg = omap4_ctrl_pad_readl(control_pbias_offset); - reg &= ~(OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK | - OMAP4_MMC1_PWRDNZ_MASK | - OMAP4_MMC1_PBIASLITE_VMODE_MASK); - omap4_ctrl_pad_writel(reg, control_pbias_offset); -} - -static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot, - int power_on, int vdd) -{ - u32 reg; - unsigned long timeout; - - if (power_on) { - reg = omap4_ctrl_pad_readl(control_pbias_offset); - reg |= OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK; - if ((1 << vdd) <= MMC_VDD_165_195) - reg &= ~OMAP4_MMC1_PBIASLITE_VMODE_MASK; - else - reg |= OMAP4_MMC1_PBIASLITE_VMODE_MASK; - reg |= (OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK | - OMAP4_MMC1_PWRDNZ_MASK); - omap4_ctrl_pad_writel(reg, control_pbias_offset); - - timeout = jiffies + msecs_to_jiffies(5); - do { - reg = omap4_ctrl_pad_readl(control_pbias_offset); - if (!(reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK)) - break; - usleep_range(100, 200); - } while (!time_after(jiffies, timeout)); - - if (reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK) { - pr_err("Pbias Voltage is not same as LDO\n"); - /* Caution : On VMODE_ERROR Power Down MMC IO */ - reg &= ~(OMAP4_MMC1_PWRDNZ_MASK); - omap4_ctrl_pad_writel(reg, control_pbias_offset); - } - } -} - static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc) { u32 reg; @@ -317,11 +265,7 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, mmc->slots[0].pm_caps = c->pm_caps; mmc->slots[0].internal_clock = !c->ext_clock; mmc->max_freq = c->max_freq; - if (cpu_is_omap44xx()) - mmc->reg_offset = OMAP4_MMC_REG_OFFSET; - else - mmc->reg_offset = 0; - + mmc->reg_offset = 0; mmc->get_context_loss_count = hsmmc_get_context_loss; mmc->slots[0].switch_pin = c->gpio_cd; @@ -368,24 +312,14 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, if (!soc_is_am35xx()) mmc->slots[0].features |= HSMMC_HAS_PBIAS; - if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0)) - mmc->slots[0].features |= HSMMC_HAS_UPDATED_RESET; - switch (c->mmc) { case 1: if (mmc->slots[0].features & HSMMC_HAS_PBIAS) { /* on-chip level shifting via PBIAS0/PBIAS1 */ - if (cpu_is_omap44xx()) { - mmc->slots[0].before_set_reg = - omap4_hsmmc1_before_set_reg; - mmc->slots[0].after_set_reg = - omap4_hsmmc1_after_set_reg; - } else { - mmc->slots[0].before_set_reg = - omap_hsmmc1_before_set_reg; - mmc->slots[0].after_set_reg = - omap_hsmmc1_after_set_reg; - } + mmc->slots[0].before_set_reg = + omap_hsmmc1_before_set_reg; + mmc->slots[0].after_set_reg = + omap_hsmmc1_after_set_reg; } if (soc_is_am35xx()) @@ -563,34 +497,17 @@ free_mmc: void __init omap_hsmmc_init(struct omap2_hsmmc_info *controllers) { - u32 reg; - if (omap_hsmmc_done) return; omap_hsmmc_done = 1; - if (!cpu_is_omap44xx()) { - if (cpu_is_omap2430()) { - control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE; - control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1; - } else { - control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE; - control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1; - } + if (cpu_is_omap2430()) { + control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE; + control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1; } else { - control_pbias_offset = - OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_PBIASLITE; - control_mmc1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MMC1; - reg = omap4_ctrl_pad_readl(control_mmc1); - reg |= (OMAP4_SDMMC1_PUSTRENGTH_GRP0_MASK | - OMAP4_SDMMC1_PUSTRENGTH_GRP1_MASK); - reg &= ~(OMAP4_SDMMC1_PUSTRENGTH_GRP2_MASK | - OMAP4_SDMMC1_PUSTRENGTH_GRP3_MASK); - reg |= (OMAP4_SDMMC1_DR0_SPEEDCTRL_MASK | - OMAP4_SDMMC1_DR1_SPEEDCTRL_MASK | - OMAP4_SDMMC1_DR2_SPEEDCTRL_MASK); - omap4_ctrl_pad_writel(reg, control_mmc1); + control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE; + control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1; } for (; controllers->mmc; controllers++) |