6 files changed, 36 insertions, 12 deletions

diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index 3fab78ba8952..723e50894db9 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -575,7 +575,7 @@ static int uart_carrier_raised(struct tty_port *tport)
         struct sdio_uart_port *port =
                         container_of(tport, struct sdio_uart_port, port);
         unsigned int ret = sdio_uart_claim_func(port);
-        if (ret)        /* Missing hardware shoudn't block for carrier */
+        if (ret)        /* Missing hardware shouldn't block for carrier */
                 return 1;
         ret = sdio_uart_get_mctrl(port);
         sdio_uart_release_func(port);
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index f4b97d3c3d0f..3168ebd616b2 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1089,6 +1089,7 @@ void mmc_rescan(struct work_struct *work)
         mmc_claim_host(host);
 
         mmc_power_up(host);
+        sdio_reset(host);
         mmc_go_idle(host);
 
         mmc_send_if_cond(host, host->ocr_avail);
diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c
index 4eb7825fd1a7..dea36d9c22e6 100644
--- a/drivers/mmc/core/sdio_ops.c
+++ b/drivers/mmc/core/sdio_ops.c
@@ -67,13 +67,13 @@ int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
         return err;
 }
 
-int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
-        unsigned addr, u8 in, u8* out)
+static int mmc_io_rw_direct_host(struct mmc_host *host, int write, unsigned fn,
+        unsigned addr, u8 in, u8 *out)
 {
         struct mmc_command cmd;
         int err;
 
-        BUG_ON(!card);
+        BUG_ON(!host);
         BUG_ON(fn > 7);
 
         /* sanity check */
@@ -90,11 +90,11 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
         cmd.arg |= in;
         cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_AC;
 
-        err = mmc_wait_for_cmd(card->host, &cmd, 0);
+        err = mmc_wait_for_cmd(host, &cmd, 0);
         if (err)
                 return err;
 
-        if (mmc_host_is_spi(card->host)) {
+        if (mmc_host_is_spi(host)) {
                 /* host driver already reported errors */
         } else {
                 if (cmd.resp[0] & R5_ERROR)
@@ -106,7 +106,7 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
         }
 
         if (out) {
-                if (mmc_host_is_spi(card->host))
+                if (mmc_host_is_spi(host))
                         *out = (cmd.resp[0] >> 8) & 0xFF;
                 else
                         *out = cmd.resp[0] & 0xFF;
@@ -115,6 +115,13 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
         return 0;
 }
 
+int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
+        unsigned addr, u8 in, u8 *out)
+{
+        BUG_ON(!card);
+        return mmc_io_rw_direct_host(card->host, write, fn, addr, in, out);
+}
+
 int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
         unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz)
 {
@@ -182,3 +189,20 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
         return 0;
 }
 
+int sdio_reset(struct mmc_host *host)
+{
+        int ret;
+        u8 abort;
+
+        /* SDIO Simplified Specification V2.0, 4.4 Reset for SDIO */
+
+        ret = mmc_io_rw_direct_host(host, 0, 0, SDIO_CCCR_ABORT, 0, &abort);
+        if (ret)
+                abort = 0x08;
+        else
+                abort |= 0x08;
+
+        ret = mmc_io_rw_direct_host(host, 1, 0, SDIO_CCCR_ABORT, abort, NULL);
+        return ret;
+}
+
diff --git a/drivers/mmc/core/sdio_ops.h b/drivers/mmc/core/sdio_ops.h
index e2e74b0d17d8..12a4d3ab174c 100644
--- a/drivers/mmc/core/sdio_ops.h
+++ b/drivers/mmc/core/sdio_ops.h
@@ -17,6 +17,7 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
         unsigned addr, u8 in, u8* out);
 int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
         unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz);
+int sdio_reset(struct mmc_host *host);
 
 #endif
 
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index b31946e0b4ca..4c068e5fe6b2 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1250,9 +1250,7 @@ msmsdcc_resume(struct platform_device *dev)
 
                 if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
                         mmc_resume_host(mmc);
-                        if (host->stat_irq)
-                                enable_irq(host->stat_irq);
-                else if (host->stat_irq)
+                if (host->stat_irq)
                         enable_irq(host->stat_irq);
         }
         return 0;
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 60a2b69e54f5..2df90412abb5 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -4,7 +4,7 @@
  *  This is a driver for the SDHC controller found in Freescale MX2/MX3
  *  SoCs. It is basically the same hardware as found on MX1 (imxmmc.c).
  *  Unlike the hardware found on MX1, this hardware just works and does
- *  not need all the quirks found in imxmmc.c, hence the seperate driver.
+ *  not need all the quirks found in imxmmc.c, hence the separate driver.
  *
  *  Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
  *  Copyright (C) 2006 Pavel Pisa, PiKRON <ppisa@pikron.com>
@@ -708,7 +708,7 @@ static int mxcmci_probe(struct platform_device *pdev)
         mmc->max_blk_size = 2048;
         mmc->max_blk_count = 65535;
         mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
-        mmc->max_seg_size = mmc->max_seg_size;
+        mmc->max_seg_size = mmc->max_req_size;
 
         host = mmc_priv(mmc);
         host->base = ioremap(r->start, resource_size(r));