mmc: at91: use max timeout value. It will avoid some situation that timeout happened.

[platform/kernel/u-boot.git] / drivers / mmc / gen_atmel_mci.c

diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c
index d217574..67b2dbe 100644 (file)
--- a/drivers/mmc/gen_atmel_mci.c
+++ b/drivers/mmc/gen_atmel_mci.c
@@ -87,6 +87,11 @@ static void mci_set_mode(struct mmc *mmc, u32 hz, u32 blklen)
                 | MMCI_BF(BLKLEN, blklen)
                 | MMCI_BIT(RDPROOF)
                 | MMCI_BIT(WRPROOF)), &mci->mr);
+       /*
+        * On some new platforms BLKLEN in mci->mr is ignored.
+        * Should use the BLKLEN in the block register.
+        */
+       writel(MMCI_BF(BLKLEN, blklen), &mci->blkr);
        initialized = 1;
 }
 
@@ -183,9 +188,11 @@ mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
        /* Figure out the transfer arguments */
        cmdr = mci_encode_cmd(cmd, data, &error_flags);
 
-       if (data)
-               writel(MMCI_BF(BCNT, data->blocks) |
-                       MMCI_BF(BLKLEN, mmc->read_bl_len), &mci->blkr);
+       /* For multi blocks read/write, set the block register */
+       if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK)
+                       || (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK))
+               writel(data->blocks | MMCI_BF(BLKLEN, mmc->read_bl_len),
+                       &mci->blkr);
 
        /* Send the command */
        writel(cmd->cmdarg, &mci->argr);
@@ -314,8 +321,8 @@ static int mci_init(struct mmc *mmc)
        writel(MMCI_BIT(MCIEN), &mci->cr);      /* enable mci */
        writel(MMCI_BF(SCDSEL, MCI_BUS), &mci->sdcr);   /* select port */
 
-       /* Initial Time-outs */
-       writel(0x5f, &mci->dtor);
+       /* This delay can be optimized, but stick with max value */
+       writel(0x7f, &mci->dtor);
        /* Disable Interrupts */
        writel(~0UL, &mci->idr);
 
@@ -341,6 +348,7 @@ int atmel_mci_init(void *regs)
        mmc->send_cmd = mci_send_cmd;
        mmc->set_ios = mci_set_ios;
        mmc->init = mci_init;
+       mmc->getcd = NULL;
 
        /* need to be able to pass these in on a board by board basis */
        mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;