When access the card, the following error is reported:
mmc0: Got data interrupt 0x00000020 even though no data operation was in
progress.
mmc0: Got data interrupt 0x00000020 even though no data operation was in
progress.
so we skip the calculation of timeout and use the max value.
---
arch/powerpc/boot/dts/p2020ds.dts | 1 +
drivers/mmc/host/sdhci-of.c | 3 +++
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/boot/dts/p2020ds.dts
b/arch/powerpc/boot/dts/p2020ds.dts
index 8b1056d..29989fb 100644
--- a/arch/powerpc/boot/dts/p2020ds.dts
+++ b/arch/powerpc/boot/dts/p2020ds.dts
@@ -461,6 +461,7 @@
interrupt-parent = <&mpic>;
fsl,sdhci-dma-broken;
fsl,sdhci-ahb2mag-irq-bypass;
+ fsl,sdhci-adjust-timeout;
clock-frequency = <0>;
};
diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c
index 0bc75b3..0ff95d8 100644
--- a/drivers/mmc/host/sdhci-of.c
+++ b/drivers/mmc/host/sdhci-of.c
@@ -276,6 +276,9 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev,
if (of_get_property(np, "fsl,sdhci-ahb2mag-irq-bypass", NULL))
host->quirks |= SDHCI_QUIRK_SET_AHB2MAG_IRQ_BYPASS;
+ if (of_get_property(np, "fsl,sdhci-adjust-timeout", NULL))
+ host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
+
clk = of_get_property(np, "clock-frequency", &size);
if (clk && size == sizeof(*clk) && *clk)
of_host->clock = *clk;
--
1.6.4
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