Signed-off-by: Lei Wen leiwen@marvell.com --- Changelog: V2: no change V3: no change V4: no change
drivers/mmc/sdhci.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 31c738e..77a9e70 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -81,8 +81,9 @@ static void sdhci_transfer_pio(struct sdhci_host *host, struct mmc_data *data) static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, unsigned int start_addr) { - unsigned int stat, rdy, mask, block = 0; + unsigned int stat, rdy, mask, timeout, block = 0;
+ timeout = 10000; rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL; mask = SDHCI_DATA_AVAILABLE | SDHCI_SPACE_AVAILABLE; do { @@ -108,6 +109,12 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS); } #endif + if (timeout-- > 0) + udelay(10); + else { + printf("Transfer data timeout\n"); + return -1; + } } while (!(stat & SDHCI_INT_DATA_END)); return 0; }