Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

[karo-tx-uboot.git] / drivers / mmc / fsl_esdhc.c

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 861f4b9d6ca52844cb76b341574d74342032b03d..a7170b49db384ff20a0276eb03312192d993f1a6 100644 (file)
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -6,23 +6,7 @@
  * (C) Copyright 2003
  * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <config.h>
@@ -100,7 +84,7 @@ static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
        else if (cmd->resp_type & MMC_RSP_PRESENT)
                xfertyp |= XFERTYP_RSPTYP_48;
 
-#ifdef CONFIG_MX53
+#if defined(CONFIG_MX53) || defined(CONFIG_T4240QDS)
        if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
                xfertyp |= XFERTYP_CMDTYP_ABORT;
 #endif
@@ -178,7 +162,7 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data)
        int timeout;
        struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
        struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
-#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
        uint wml_value;
 
        wml_value = data->blocksize/4;
@@ -310,6 +294,9 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
        /* Figure out the transfer arguments */
        xfertyp = esdhc_xfertyp(cmd, data);
 
+       /* Mask all irqs */
+       esdhc_write32(&regs->irqsigen, 0);
+
        /* Send the command */
        esdhc_write32(&regs->cmdarg, cmd->cmdarg);
 #if defined(CONFIG_FSL_USDHC)
@@ -320,15 +307,11 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
        esdhc_write32(&regs->xfertyp, xfertyp);
 #endif
 
-       /* Mask all irqs */
-       esdhc_write32(&regs->irqsigen, 0);
-
        /* Wait for the command to complete */
        while (!(esdhc_read32(&regs->irqstat) & (IRQSTAT_CC | IRQSTAT_CTOE)))
                ;
 
        irqstat = esdhc_read32(&regs->irqstat);
-       esdhc_write32(&regs->irqstat, irqstat);
 
        /* Reset CMD and DATA portions on error */
        if (irqstat & (CMD_ERR | IRQSTAT_CTOE)) {
@@ -471,7 +454,7 @@ static int esdhc_init(struct mmc *mmc)
        int timeout = 1000;
 
        /* Reset the entire host controller */
-       esdhc_write32(&regs->sysctl, SYSCTL_RSTA);
+       esdhc_setbits32(&regs->sysctl, SYSCTL_RSTA);
 
        /* Wait until the controller is available */
        while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA) && --timeout)
@@ -482,7 +465,7 @@ static int esdhc_init(struct mmc *mmc)
        esdhc_write32(&regs->scr, 0x00000040);
 #endif
 
-       esdhc_write32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
+       esdhc_setbits32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
 
        /* Set the initial clock speed */
        mmc_set_clock(mmc, 400000);
@@ -516,7 +499,7 @@ static void esdhc_reset(struct fsl_esdhc *regs)
        unsigned long timeout = 100; /* wait max 100 ms */
 
        /* reset the controller */
-       esdhc_write32(&regs->sysctl, SYSCTL_RSTA);
+       esdhc_setbits32(&regs->sysctl, SYSCTL_RSTA);
 
        /* hardware clears the bit when it is done */
        while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA) && --timeout)
@@ -535,6 +518,8 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
                return -1;
 
        mmc = malloc(sizeof(struct mmc));
+       if (!mmc)
+               return -ENOMEM;
 
        sprintf(mmc->name, "FSL_SDHC");
        regs = (struct fsl_esdhc *)cfg->esdhc_base;