diff options
| author | addy ke <addy.ke@rock-chips.com> | 2015-02-20 10:55:25 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-03-23 14:13:29 +0100 |
| commit | bdb9a90b3d123d9d421dd840c0f7fba1d1dfeba2 (patch) | |
| tree | f5d0e3e4356066bcdeac520b1581bd7e5c8d8352 /drivers/mmc/host/dw_mmc.c | |
| parent | 6d53200b51a57f50bc5a98b36bfcdb47483ad61a (diff) | |
mmc: dw_mmc: fix mmc_test by not sending abort for DRTO/EBE errors
The STOP command can terminate a data transfer between a memory card and
mmc controller.
As show in Synopsys DesignWare Cores Mobile Storage Host Databook:
Data timeout and Data end-bit error will terminate further data transfer
by mmc controller. So we should not send abort command to terminate a
data transfer again if we got DRTO and EBE interrupt.
After this patch, all mmc_test cases can pass on RK3288-Pink2 board.
Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc.c')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index f30ef6921d08..bed0f9446a66 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1534,7 +1534,10 @@ static void dw_mci_tasklet_func(unsigned long priv) if (test_and_clear_bit(EVENT_DATA_ERROR, &host->pending_events)) { dw_mci_stop_dma(host); - send_stop_abort(host, data); + if (data->stop || + !(host->data_status & (SDMMC_INT_DRTO | + SDMMC_INT_EBE))) + send_stop_abort(host, data); state = STATE_DATA_ERROR; break; } @@ -1561,7 +1564,10 @@ static void dw_mci_tasklet_func(unsigned long priv) if (test_and_clear_bit(EVENT_DATA_ERROR, &host->pending_events)) { dw_mci_stop_dma(host); - send_stop_abort(host, data); + if (data->stop || + !(host->data_status & (SDMMC_INT_DRTO | + SDMMC_INT_EBE))) + send_stop_abort(host, data); state = STATE_DATA_ERROR; break; } |