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MCI: tegra-sdmmc: convert to streaming DMA ops 

Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Lucas Stach 2015-03-05 22:50:06 +01:00 committed by Sascha Hauer
parent e31aa8badc
commit f777398dc5
1 changed files with 14 additions and 12 deletions
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26
drivers/mci/tegra-sdmmc.c
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@ -17,10 +17,10 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <asm/mmu.h>
#include <common.h>
#include <clock.h>
#include <driver.h>
#include <dma.h>
#include <gpio.h>
#include <init.h>
#include <io.h>
@ -100,6 +100,7 @@ static int tegra_sdmmc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
struct mci_data *data)
{
struct tegra_sdmmc_host *host = to_tegra_sdmmc_host(mci);
unsigned int num_bytes = 0;
u32 val = 0;
int ret;
@ -109,15 +110,15 @@ static int tegra_sdmmc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
/* Set up for a data transfer if we have one */
if (data) {
num_bytes = data->blocks * data->blocksize;
if (data->flags & MMC_DATA_WRITE) {
dma_flush_range((unsigned long)data->src,
(unsigned long)(data->src +
data->blocks * 512));
dma_sync_single_for_device((unsigned long)data->src,
num_bytes, DMA_TO_DEVICE);
writel((u32)data->src, host->regs + SDHCI_DMA_ADDRESS);
} else {
dma_clean_range((unsigned long)data->src,
(unsigned long)(data->src +
data->blocks * 512));
dma_sync_single_for_device((unsigned long)data->dest,
num_bytes, DMA_FROM_DEVICE);
writel((u32)data->dest, host->regs + SDHCI_DMA_ADDRESS);
}
@ -255,11 +256,12 @@ static int tegra_sdmmc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
}
writel(val, host->regs + SDHCI_INT_STATUS);
if (data->flags & MMC_DATA_READ) {
dma_inv_range((unsigned long)data->dest,
(unsigned long)(data->dest +
data->blocks * 512));
}
if (data->flags & MMC_DATA_WRITE)
dma_sync_single_for_cpu((unsigned long)data->src,
num_bytes, DMA_TO_DEVICE);
else
dma_sync_single_for_cpu((unsigned long)data->dest,
num_bytes, DMA_FROM_DEVICE);
}
return 0;