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mmc: sdhci: add the DMA select for SDMA

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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>
This commit is contained in:
Jaehoon Chung 2012-09-20 20:31:55 +00:00 • committed by Andy Fleming
parent 5d48e42247
commit 804c7f4221
1 changed files with 7 additions and 0 deletions
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7
drivers/mmc/sdhci.c
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@ -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;