diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/s5p_mmc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c index f136813..7786ecf 100644 --- a/drivers/mmc/s5p_mmc.c +++ b/drivers/mmc/s5p_mmc.c @@ -232,9 +232,15 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, __func__, mask); return -1; } else if (mask & (1 << 3)) { - /* DMA Interrupt */ + /* + * DMA Interrupt, restart the transfer where + * it was interrupted. + */ + unsigned int address = readl(&host->reg->sysad); + debug("DMA end\n"); - break; + writel((1 << 3), &host->reg->norintsts); + writel(address, &host->reg->sysad); } else if (mask & (1 << 1)) { /* Transfer Complete */ debug("r/w is done\n"); @@ -425,12 +431,13 @@ static int mmc_core_init(struct mmc *mmc) * NORMAL Interrupt Status Enable Register init * [5] ENSTABUFRDRDY : Buffer Read Ready Status Enable * [4] ENSTABUFWTRDY : Buffer write Ready Status Enable + * [3] ENSTADMAINT : DMA Interrupt Status Enable * [1] ENSTASTANSCMPLT : Transfre Complete Status Enable * [0] ENSTACMDCMPLT : Command Complete Status Enable - */ + */ mask = readl(&host->reg->norintstsen); mask &= ~(0xffff); - mask |= (1 << 5) | (1 << 4) | (1 << 1) | (1 << 0); + mask |= (1 << 5) | (1 << 4) | (1 << 3) | (1 << 1) | (1 << 0); writel(mask, &host->reg->norintstsen); /* |