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authorJaehoon Chung <jh80.chung@samsung.com>2012-09-20 20:31:55 +0000
committerAndy Fleming <afleming@freescale.com>2012-10-22 02:53:36 -0500
commit804c7f422169212e92530e1ddaf74bf1ca9ebfa1 (patch)
tree384a0cb41a2e699c05935073d714c5333a80c7d3 /drivers/mmc
parent5d48e4224791611498456908fc23a845cc5b4ed7 (diff)
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mmc: sdhci: add the DMA select for SDMA
In host-control register, DMA select bit field is present. BUt in sdhci.c, didn't select for DMA. if set CONFIG_MMC_SDMA, we need to set SDMA-select bit. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/sdhci.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 9329874..15b4686 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -82,6 +82,13 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
unsigned int start_addr)
{
unsigned int stat, rdy, mask, timeout, block = 0;
+#ifdef CONFIG_MMC_SDMA
+ unsigned char ctrl;
+ ctrl = sdhci_readl(host, SDHCI_HOST_CONTROL);
+ ctrl &= ~SDHCI_CTRL_DMA_MASK;
+ ctrl |= SDHCI_CTRL_SDMA;
+ sdhci_writel(host, ctrl, SDHCI_HOST_CONTROL);
+#endif
timeout = 1000000;
rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL;