From: Adrian Hunter <ext-adrian.hunter@nokia.com>
To: linux-omap Mailing List <linux-omap@vger.kernel.org>
Subject: [PATCH 1/3] ARM: OMAP: hsmmc requires data reset after data timeout
Date: Thu, 16 Oct 2008 16:37:14 +0300 [thread overview]
Message-ID: <48F7438A.8060706@nokia.com> (raw)
According to TRM a software reset SRD after data timeout
is required.
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
---
drivers/mmc/host/omap_hsmmc.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 00b1b68..8fb677e 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -417,6 +417,11 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
mmc_dma_cleanup(host);
else
host->data->error = -EILSEQ;
+ OMAP_HSMMC_WRITE(host->base, SYSCTL,
+ OMAP_HSMMC_READ(host->base,
+ SYSCTL) | SRD);
+ while (OMAP_HSMMC_READ(host->base,
+ SYSCTL) & SRD) ;
end_trans = 1;
}
}
--
1.5.4.3
next reply other threads:[~2008-10-16 13:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-16 13:37 Adrian Hunter [this message]
2008-10-28 8:58 ` [PATCH 1/3] ARM: OMAP: hsmmc requires data reset after data timeout Adrian Hunter
2008-10-28 16:59 ` Tony Lindgren
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