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-rw-r--r--drivers/mmc/card/block.c17
-rw-r--r--drivers/mmc/host/au1xmmc.c35
-rw-r--r--drivers/mmc/host/pxamci.c18
-rw-r--r--drivers/mmc/host/sdhci.c9
-rw-r--r--include/linux/major.h2
5 files changed, 35 insertions, 46 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index d24ab234394..a7562f7fc0b 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -45,8 +45,6 @@
*/
#define MMC_SHIFT 3
-static int major;
-
/*
* There is one mmc_blk_data per slot.
*/
@@ -466,7 +464,7 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
md->queue.issue_fn = mmc_blk_issue_rq;
md->queue.data = md;
- md->disk->major = major;
+ md->disk->major = MMC_BLOCK_MAJOR;
md->disk->first_minor = devidx << MMC_SHIFT;
md->disk->fops = &mmc_bdops;
md->disk->private_data = md;
@@ -634,14 +632,9 @@ static int __init mmc_blk_init(void)
{
int res = -ENOMEM;
- res = register_blkdev(major, "mmc");
- if (res < 0) {
- printk(KERN_WARNING "Unable to get major %d for MMC media: %d\n",
- major, res);
+ res = register_blkdev(MMC_BLOCK_MAJOR, "mmc");
+ if (res)
goto out;
- }
- if (major == 0)
- major = res;
return mmc_register_driver(&mmc_driver);
@@ -652,7 +645,7 @@ static int __init mmc_blk_init(void)
static void __exit mmc_blk_exit(void)
{
mmc_unregister_driver(&mmc_driver);
- unregister_blkdev(major, "mmc");
+ unregister_blkdev(MMC_BLOCK_MAJOR, "mmc");
}
module_init(mmc_blk_init);
@@ -661,5 +654,3 @@ module_exit(mmc_blk_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Multimedia Card (MMC) block device driver");
-module_param(major, int, 0444);
-MODULE_PARM_DESC(major, "specify the major device number for MMC block driver");
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index b7156a4555b..f967226d750 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -187,9 +187,8 @@ static void au1xmmc_tasklet_finish(unsigned long param)
}
static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
- struct mmc_command *cmd)
+ struct mmc_command *cmd, unsigned int flags)
{
-
u32 mmccmd = (cmd->opcode << SD_CMD_CI_SHIFT);
switch (mmc_resp_type(cmd)) {
@@ -213,24 +212,16 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
return MMC_ERR_INVALID;
}
- switch(cmd->opcode) {
- case MMC_READ_SINGLE_BLOCK:
- case SD_APP_SEND_SCR:
- mmccmd |= SD_CMD_CT_2;
- break;
- case MMC_READ_MULTIPLE_BLOCK:
- mmccmd |= SD_CMD_CT_4;
- break;
- case MMC_WRITE_BLOCK:
- mmccmd |= SD_CMD_CT_1;
- break;
-
- case MMC_WRITE_MULTIPLE_BLOCK:
- mmccmd |= SD_CMD_CT_3;
- break;
- case MMC_STOP_TRANSMISSION:
- mmccmd |= SD_CMD_CT_7;
- break;
+ if (flags & MMC_DATA_READ) {
+ if (flags & MMC_DATA_MULTI)
+ mmccmd |= SD_CMD_CT_4;
+ else
+ mmccmd |= SD_CMD_CT_2;
+ } else if (flags & MMC_DATA_WRITE) {
+ if (flags & MMC_DATA_MULTI)
+ mmccmd |= SD_CMD_CT_3;
+ else
+ mmccmd |= SD_CMD_CT_1;
}
au_writel(cmd->arg, HOST_CMDARG(host));
@@ -665,6 +656,7 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
{
struct au1xmmc_host *host = mmc_priv(mmc);
+ unsigned int flags = 0;
int ret = MMC_ERR_NONE;
WARN_ON(irqs_disabled());
@@ -677,11 +669,12 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
if (mrq->data) {
FLUSH_FIFO(host);
+ flags = mrq->data->flags;
ret = au1xmmc_prepare_data(host, mrq->data);
}
if (ret == MMC_ERR_NONE)
- ret = au1xmmc_send_command(host, 0, mrq->cmd);
+ ret = au1xmmc_send_command(host, 0, mrq->cmd, flags);
if (ret != MMC_ERR_NONE) {
mrq->cmd->error = ret;
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index d97d3864b57..f8985c508bb 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -232,20 +232,14 @@ static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat)
/*
* workaround for erratum #42:
* Intel PXA27x Family Processor Specification Update Rev 001
+ * A bogus CRC error can appear if the msb of a 136 bit
+ * response is a one.
*/
- if (cmd->opcode == MMC_ALL_SEND_CID ||
- cmd->opcode == MMC_SEND_CSD ||
- cmd->opcode == MMC_SEND_CID) {
- /* a bogus CRC error can appear if the msb of
- the 15 byte response is a one */
- if ((cmd->resp[0] & 0x80000000) == 0)
- cmd->error = MMC_ERR_BADCRC;
- } else {
- pr_debug("ignoring CRC from command %d - *risky*\n",cmd->opcode);
- }
-#else
- cmd->error = MMC_ERR_BADCRC;
+ if (cmd->flags & MMC_RSP_136 && cmd->resp[0] & 0x80000000) {
+ pr_debug("ignoring CRC from command %d - *risky*\n", cmd->opcode);
+ } else
#endif
+ cmd->error = MMC_ERR_BADCRC;
}
pxamci_disable_irq(host, END_CMD_RES);
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index ff5bf73cdd2..a359efdd77e 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -963,6 +963,15 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
sdhci_transfer_pio(host);
+ /*
+ * We currently don't do anything fancy with DMA
+ * boundaries, but as we can't disable the feature
+ * we need to at least restart the transfer.
+ */
+ if (intmask & SDHCI_INT_DMA_END)
+ writel(readl(host->ioaddr + SDHCI_DMA_ADDRESS),
+ host->ioaddr + SDHCI_DMA_ADDRESS);
+
if (intmask & SDHCI_INT_DATA_END)
sdhci_finish_data(host);
}
diff --git a/include/linux/major.h b/include/linux/major.h
index 0a74c52924c..7e7c9093919 100644
--- a/include/linux/major.h
+++ b/include/linux/major.h
@@ -152,6 +152,8 @@
#define USB_ACM_AUX_MAJOR 167
#define USB_CHAR_MAJOR 180
+#define MMC_BLOCK_MAJOR 179
+
#define VXVM_MAJOR 199 /* VERITAS volume i/o driver */
#define VXSPEC_MAJOR 200 /* VERITAS volume config driver */
#define VXDMP_MAJOR 201 /* VERITAS volume multipath driver */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 12:29:10 +0000