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Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/mmc_block.c27
-rw-r--r--drivers/mmc/mmci.c1
-rw-r--r--drivers/mmc/sdhci.c2
-rw-r--r--drivers/mmc/wbsd.c2
4 files changed, 23 insertions, 9 deletions
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index f3a99dd8df8..8d18b87bfd3 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -32,6 +32,7 @@
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/mmc/protocol.h>
+#include <linux/mmc/host.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -165,6 +166,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
do {
struct mmc_blk_request brq;
struct mmc_command cmd;
+ u32 readcmd, writecmd;
memset(&brq, 0, sizeof(struct mmc_blk_request));
brq.mrq.cmd = &brq.cmd;
@@ -180,20 +182,31 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
mmc_set_data_timeout(&brq.data, card, rq_data_dir(req) != READ);
- if (rq_data_dir(req) == READ) {
- brq.cmd.opcode = brq.data.blocks > 1 ? MMC_READ_MULTIPLE_BLOCK : MMC_READ_SINGLE_BLOCK;
- brq.data.flags |= MMC_DATA_READ;
- } else {
- brq.cmd.opcode = MMC_WRITE_BLOCK;
- brq.data.flags |= MMC_DATA_WRITE;
+ /*
+ * If the host doesn't support multiple block writes, force
+ * block writes to single block.
+ */
+ if (rq_data_dir(req) != READ &&
+ !(card->host->caps & MMC_CAP_MULTIWRITE))
brq.data.blocks = 1;
- }
if (brq.data.blocks > 1) {
brq.data.flags |= MMC_DATA_MULTI;
brq.mrq.stop = &brq.stop;
+ readcmd = MMC_READ_MULTIPLE_BLOCK;
+ writecmd = MMC_WRITE_MULTIPLE_BLOCK;
} else {
brq.mrq.stop = NULL;
+ readcmd = MMC_READ_SINGLE_BLOCK;
+ writecmd = MMC_WRITE_BLOCK;
+ }
+
+ if (rq_data_dir(req) == READ) {
+ brq.cmd.opcode = readcmd;
+ brq.data.flags |= MMC_DATA_READ;
+ } else {
+ brq.cmd.opcode = writecmd;
+ brq.data.flags |= MMC_DATA_WRITE;
}
brq.data.sg = mq->sg;
diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c
index 8419489e774..2b5a0cc9ea5 100644
--- a/drivers/mmc/mmci.c
+++ b/drivers/mmc/mmci.c
@@ -509,6 +509,7 @@ static int mmci_probe(struct amba_device *dev, void *id)
mmc->f_min = (host->mclk + 511) / 512;
mmc->f_max = min(host->mclk, fmax);
mmc->ocr_avail = plat->ocr_mask;
+ mmc->caps = MMC_CAP_MULTIWRITE;
/*
* We can do SGIO
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 4e21b3b9d33..dea4edd1c43 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -1262,7 +1262,7 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
mmc->ops = &sdhci_ops;
mmc->f_min = host->max_clk / 256;
mmc->f_max = host->max_clk;
- mmc->caps = MMC_CAP_4_BIT_DATA;
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE;
mmc->ocr_avail = 0;
if (caps & SDHCI_CAN_VDD_330)
diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c
index c351c6d1a18..4a6617d9a49 100644
--- a/drivers/mmc/wbsd.c
+++ b/drivers/mmc/wbsd.c
@@ -1323,7 +1323,7 @@ static int __devinit wbsd_alloc_mmc(struct device *dev)
mmc->f_min = 375000;
mmc->f_max = 24000000;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->caps = MMC_CAP_4_BIT_DATA;
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE;
spin_lock_init(&host->lock);