From 757df746fc5db0020ddab45914617a19d149c252 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 30 Jun 2011 15:10:21 +0100 Subject: ARM: 6980/1: mmci: use StartBitErr to detect bad connections Stresstesting insert/remove of SD-cards can trigger a StartBitErr. This made the driver to hang in forever waiting for a non ocurring data timeout. This bit and interrupt is documented in the original PL180 TRM, just never implemented until now. Signed-off-by: Ulf Hansson Reviewed-by: Linus Walleij Reviewed-by: Jonas Aberg Signed-off-by: Linus Walleij Signed-off-by: Russell King --- drivers/mmc/host/mmci.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mmc/host/mmci.c') diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 7721de942c6..fe140724a02 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -582,6 +582,8 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, data->error = -EILSEQ; } else if (status & MCI_DATATIMEOUT) { data->error = -ETIMEDOUT; + } else if (status & MCI_STARTBITERR) { + data->error = -ECOMM; } else if (status & MCI_TXUNDERRUN) { data->error = -EIO; } else if (status & MCI_RXOVERRUN) { -- cgit v1.2.3-70-g09d2