Messages in this thread Patch in this message |  | | Date | Mon, 16 Jun 2008 15:34:48 +0100 | From | Ben Dooks <> | Subject | [patch v2 03/16] MMC: S3C24XX MMC/SD driver write fixes |
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From: Harald Welte <laforge@openmoko.org>
This patch is a workaround of some S3C2410 MMC chip bug
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Index: linux-2.6.26-rc5-q2/drivers/mmc/host/s3cmci.c =================================================================== --- linux-2.6.26-rc5-q2.orig/drivers/mmc/host/s3cmci.c 2008-06-16 14:19:18.000000000 +0100 +++ linux-2.6.26-rc5-q2/drivers/mmc/host/s3cmci.c 2008-06-16 14:19:44.000000000 +0100 @@ -454,11 +454,17 @@ static irqreturn_t s3cmci_irq(int irq, v if (mci_csta & S3C2410_SDICMDSTAT_CRCFAIL) { if (cmd->flags & MMC_RSP_CRC) { - cmd->error = MMC_ERR_BADCRC; - host->status = "error: bad command crc"; - goto fail_transfer; + if (host->mrq->cmd->flags & MMC_RSP_136) { + dbg(host, dbg_irq, + "fixup: ignore CRC fail with long rsp\n"); + } else { +#if 0 + cmd->error = MMC_ERR_BADCRC; + host->status = "error: bad command crc"; + goto fail_transfer; +#endif + } } - mci_cclear |= S3C2410_SDICMDSTAT_CRCFAIL; } -- Ben (ben@fluff.org, http://www.fluff.org/)
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