---
drivers/mmc/sunxi_mmc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index bbfe8a3..f0cb760 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -173,8 +173,6 @@ static int mmc_core_init(struct mmc *mmc)
/* Reset controller */
writel(SUNXI_MMC_GCTRL_RESET, &mmchost->reg->gctrl);
udelay(1000);
- /* Always read / write data through the CPU */
- writel(SUNXI_MMC_GCTRL_ACCESS_BY_AHB, &mmchost->reg->gctrl);
return 0;
}
@@ -189,6 +187,13 @@ static int mmc_trans_data_by_cpu(struct mmc *mmc, struct
mmc_data *data)
unsigned byte_cnt = data->blocksize * data->blocks;
unsigned timeout_msecs = 2000;
unsigned *buff = (unsigned int *)(reading ? data->dest : data->src);
+ unsigned int gctrl;
+
+ /* Always read / write data through the CPU */
+ gctrl = readl(&mmchost->reg->gctrl);
+ gctrl &= ~SUNXI_MMC_GCTRL_ACCESS_BY_AHB;
+ gctrl |= SUNXI_MMC_GCTRL_ACCESS_BY_AHB;
+ writel(gctrl, &mmchost->reg->gctrl);
for (i = 0; i < (byte_cnt >> 2); i++) {
while (readl(&mmchost->reg->status) & status_bit) {
--
1.8.3.2
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