diff options
Diffstat (limited to 'drivers/mmc/host/bcm2835.c')
| -rw-r--r-- | drivers/mmc/host/bcm2835.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index 0d3b7473bc21..5301302fb531 100644 --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -286,6 +286,7 @@ static void bcm2835_reset(struct mmc_host *mmc) if (host->dma_chan) dmaengine_terminate_sync(host->dma_chan); + host->dma_chan = NULL; bcm2835_reset_internal(host); } @@ -772,6 +773,8 @@ static void bcm2835_finish_command(struct bcm2835_host *host) if (!(sdhsts & SDHSTS_CRC7_ERROR) || (host->cmd->opcode != MMC_SEND_OP_COND)) { + u32 edm, fsm; + if (sdhsts & SDHSTS_CMD_TIME_OUT) { host->cmd->error = -ETIMEDOUT; } else { @@ -780,6 +783,13 @@ static void bcm2835_finish_command(struct bcm2835_host *host) bcm2835_dumpregs(host); host->cmd->error = -EILSEQ; } + edm = readl(host->ioaddr + SDEDM); + fsm = edm & SDEDM_FSM_MASK; + if (fsm == SDEDM_FSM_READWAIT || + fsm == SDEDM_FSM_WRITESTART1) + /* Kick the FSM out of its wait */ + writel(edm | SDEDM_FORCE_DATA_MODE, + host->ioaddr + SDEDM); bcm2835_finish_request(host); return; } @@ -837,6 +847,8 @@ static void bcm2835_timeout(struct work_struct *work) dev_err(dev, "timeout waiting for hardware interrupt.\n"); bcm2835_dumpregs(host); + bcm2835_reset(host->mmc); + if (host->data) { host->data->error = -ETIMEDOUT; bcm2835_finish_data(host); |