diff options
Diffstat (limited to 'drivers/mmc/tegra2_mmc.c')
| -rw-r--r-- | drivers/mmc/tegra2_mmc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/tegra2_mmc.c b/drivers/mmc/tegra2_mmc.c index 159cef1..bbd0ccd 100644 --- a/drivers/mmc/tegra2_mmc.c +++ b/drivers/mmc/tegra2_mmc.c @@ -260,6 +260,8 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, } if (data) { + unsigned long start = get_timer(0); + while (1) { mask = readl(&host->reg->norintsts); @@ -284,6 +286,18 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, /* Transfer Complete */ debug("r/w is done\n"); break; + } else if (get_timer(start) > 2000UL) { + writel(mask, &host->reg->norintsts); + printf("%s: MMC Timeout\n" + " Interrupt status 0x%08x\n" + " Interrupt status enable 0x%08x\n" + " Interrupt signal enable 0x%08x\n" + " Present status 0x%08x\n", + __func__, mask, + readl(&host->reg->norintstsen), + readl(&host->reg->norintsigen), + readl(&host->reg->prnsts)); + return -1; } } writel(mask, &host->reg->norintsts); |