[U-Boot] [PATCH 1/7] mmc: fsl_esdhc: drop controller initialization in fsl_esdhc_init()

[Yangbo Lu]

Controller initialization is not needed in fsl_esdhc_init().
It will be done in esdhc_init() for non-DM_MMC, and in
esdhc_init_common() in probe for DM_MMC.

Signed-off-by: Yangbo Lu <yangbo...@nxp.com>
---
 drivers/mmc/fsl_esdhc.c | 36 ------------------------------------
 1 file changed, 36 deletions(-)

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index cd357ea..7d7236c 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -25,13 +25,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define SDHCI_IRQ_EN_BITS              (IRQSTATEN_CC | IRQSTATEN_TC | \
-                               IRQSTATEN_CINT | \
-                               IRQSTATEN_CTOE | IRQSTATEN_CCE | IRQSTATEN_CEBE 
| \
-                               IRQSTATEN_CIE | IRQSTATEN_DTOE | IRQSTATEN_DCE 
| \
-                               IRQSTATEN_DEBE | IRQSTATEN_BRR | IRQSTATEN_BWR 
| \
-                               IRQSTATEN_DINT)
-
 struct fsl_esdhc {
        uint    dsaddr;         /* SDMA system address register */
        uint    blkattr;        /* Block attributes register */
@@ -648,25 +641,6 @@ static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
        return timeout > 0;
 }
 
-static int esdhc_reset(struct fsl_esdhc *regs)
-{
-       ulong start;
-
-       /* reset the controller */
-       esdhc_setbits32(&regs->sysctl, SYSCTL_RSTA);
-
-       /* hardware clears the bit when it is done */
-       start = get_timer(0);
-       while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA)) {
-               if (get_timer(start) > 100) {
-                       printf("MMC/SD: Reset never completed.\n");
-                       return -ETIMEDOUT;
-               }
-       }
-
-       return 0;
-}
-
 #if !CONFIG_IS_ENABLED(DM_MMC)
 static int esdhc_getcd(struct mmc *mmc)
 {
@@ -711,22 +685,12 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
        struct mmc_config *cfg;
        struct fsl_esdhc *regs;
        u32 caps, voltage_caps;
-       int ret;
 
        if (!priv)
                return -EINVAL;
 
        regs = priv->esdhc_regs;
 
-       /* First reset the eSDHC controller */
-       ret = esdhc_reset(regs);
-       if (ret)
-               return ret;
-
-       esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN |
-                                      SYSCTL_IPGEN | SYSCTL_CKEN);
-
-       writel(SDHCI_IRQ_EN_BITS, &regs->irqstaten);
        cfg = &plat->cfg;
 #ifndef CONFIG_DM_MMC
        memset(cfg, '\0', sizeof(*cfg));
-- 
2.7.4

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