diff options
| -rw-r--r-- | drivers/mmc/sunxi_mmc.c | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c index bd41fbb..23bef94 100644 --- a/drivers/mmc/sunxi_mmc.c +++ b/drivers/mmc/sunxi_mmc.c @@ -153,29 +153,6 @@ static int mmc_set_mod_clk(struct sunxi_mmc_priv *priv, unsigned int hz) return 0; } -static int mmc_clk_io_on(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 clock and io\n", sdc_no); - - /* config ahb clock */ - setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MMC(sdc_no)); - -#ifdef CONFIG_SUNXI_GEN_SUN6I - /* unassert reset */ - setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MMC(sdc_no)); -#endif -#if defined(CONFIG_MACH_SUN9I) - /* sun9i has a mmc-common module, also set the gate and reset there */ - writel(SUNXI_MMC_COMMON_CLK_GATE | SUNXI_MMC_COMMON_RESET, - SUNXI_MMC_COMMON_BASE + 4 * sdc_no); -#endif - - return mmc_set_mod_clk(priv, 24000000); -} - static int mmc_update_clk(struct sunxi_mmc_priv *priv) { unsigned int cmd; @@ -467,8 +444,10 @@ static const struct mmc_ops sunxi_mmc_ops = { struct mmc *sunxi_mmc_init(int sdc_no) { + struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; struct sunxi_mmc_priv *priv = &mmc_host[sdc_no]; struct mmc_config *cfg = &priv->cfg; + int ret; memset(priv, '\0', sizeof(struct sunxi_mmc_priv)); @@ -490,7 +469,22 @@ struct mmc *sunxi_mmc_init(int sdc_no) if (mmc_resource_init(sdc_no) != 0) return NULL; - mmc_clk_io_on(sdc_no); + /* config ahb clock */ + debug("init mmc %d clock and io\n", sdc_no); + setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MMC(sdc_no)); + +#ifdef CONFIG_SUNXI_GEN_SUN6I + /* unassert reset */ + setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MMC(sdc_no)); +#endif +#if defined(CONFIG_MACH_SUN9I) + /* sun9i has a mmc-common module, also set the gate and reset there */ + writel(SUNXI_MMC_COMMON_CLK_GATE | SUNXI_MMC_COMMON_RESET, + SUNXI_MMC_COMMON_BASE + 4 * sdc_no); +#endif + ret = mmc_set_mod_clk(priv, 24000000); + if (ret) + return NULL; return mmc_create(cfg, mmc_host); } |