diff options
| -rw-r--r-- | drivers/mmc/sunxi_mmc.c | 117 |
1 files changed, 61 insertions, 56 deletions
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c index f990b06603..23bc7da917 100644 --- a/drivers/mmc/sunxi_mmc.c +++ b/drivers/mmc/sunxi_mmc.c @@ -5,6 +5,12 @@ * Aaron <leafy.myeh@allwinnertech.com> * * MMC driver for allwinner sunxi platform. + * + * This driver is used by the (ARM) SPL with the legacy MMC interface, and + * by U-Boot proper using the full DM interface. The actual hardware access + * code is common, and comes first in this file. + * The legacy MMC interface implementation comes next, followed by the + * proper DM_MMC implementation at the end. */ #include <common.h> @@ -40,48 +46,6 @@ struct sunxi_mmc_priv { struct mmc_config cfg; }; -#if !CONFIG_IS_ENABLED(DM_MMC) -/* support 4 mmc hosts */ -struct sunxi_mmc_priv mmc_host[4]; - -static int mmc_resource_init(int sdc_no) -{ - struct sunxi_mmc_priv *priv = &mmc_host[sdc_no]; - struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - - debug("init mmc %d resource\n", sdc_no); - - switch (sdc_no) { - case 0: - priv->reg = (struct sunxi_mmc *)SUNXI_MMC0_BASE; - priv->mclkreg = &ccm->sd0_clk_cfg; - break; - case 1: - priv->reg = (struct sunxi_mmc *)SUNXI_MMC1_BASE; - priv->mclkreg = &ccm->sd1_clk_cfg; - break; -#ifdef SUNXI_MMC2_BASE - case 2: - priv->reg = (struct sunxi_mmc *)SUNXI_MMC2_BASE; - priv->mclkreg = &ccm->sd2_clk_cfg; - break; -#endif -#ifdef SUNXI_MMC3_BASE - case 3: - priv->reg = (struct sunxi_mmc *)SUNXI_MMC3_BASE; - priv->mclkreg = &ccm->sd3_clk_cfg; - break; -#endif - default: - printf("Wrong mmc number %d\n", sdc_no); - return -1; - } - priv->mmc_no = sdc_no; - - return 0; -} -#endif - /* * All A64 and later MMC controllers feature auto-calibration. This would * normally be detected via the compatible string, but we need something @@ -269,19 +233,6 @@ static int sunxi_mmc_set_ios_common(struct sunxi_mmc_priv *priv, return 0; } -#if !CONFIG_IS_ENABLED(DM_MMC) -static int sunxi_mmc_core_init(struct mmc *mmc) -{ - struct sunxi_mmc_priv *priv = mmc->priv; - - /* Reset controller */ - writel(SUNXI_MMC_GCTRL_RESET, &priv->reg->gctrl); - udelay(1000); - - return 0; -} -#endif - static int mmc_trans_data_by_cpu(struct sunxi_mmc_priv *priv, struct mmc *mmc, struct mmc_data *data) { @@ -486,7 +437,60 @@ out: return error; } +/* non-DM code here is used by the (ARM) SPL only */ + #if !CONFIG_IS_ENABLED(DM_MMC) +/* support 4 mmc hosts */ +struct sunxi_mmc_priv mmc_host[4]; + +static int mmc_resource_init(int sdc_no) +{ + struct sunxi_mmc_priv *priv = &mmc_host[sdc_no]; + struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + + debug("init mmc %d resource\n", sdc_no); + + switch (sdc_no) { + case 0: + priv->reg = (struct sunxi_mmc *)SUNXI_MMC0_BASE; + priv->mclkreg = &ccm->sd0_clk_cfg; + break; + case 1: + priv->reg = (struct sunxi_mmc *)SUNXI_MMC1_BASE; + priv->mclkreg = &ccm->sd1_clk_cfg; + break; +#ifdef SUNXI_MMC2_BASE + case 2: + priv->reg = (struct sunxi_mmc *)SUNXI_MMC2_BASE; + priv->mclkreg = &ccm->sd2_clk_cfg; + break; +#endif +#ifdef SUNXI_MMC3_BASE + case 3: + priv->reg = (struct sunxi_mmc *)SUNXI_MMC3_BASE; + priv->mclkreg = &ccm->sd3_clk_cfg; + break; +#endif + default: + printf("Wrong mmc number %d\n", sdc_no); + return -1; + } + priv->mmc_no = sdc_no; + + return 0; +} + +static int sunxi_mmc_core_init(struct mmc *mmc) +{ + struct sunxi_mmc_priv *priv = mmc->priv; + + /* Reset controller */ + writel(SUNXI_MMC_GCTRL_RESET, &priv->reg->gctrl); + udelay(1000); + + return 0; +} + static int sunxi_mmc_set_ios_legacy(struct mmc *mmc) { struct sunxi_mmc_priv *priv = mmc->priv; @@ -562,7 +566,8 @@ struct mmc *sunxi_mmc_init(int sdc_no) return mmc_create(cfg, priv); } -#else + +#else /* CONFIG_DM_MMC code below, as used by U-Boot proper */ static int sunxi_mmc_set_ios(struct udevice *dev) { |