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authorJerry Huang <Chang-Ming.Huang@freescale.com>2012-10-25 13:47:19 +0800
committerChris Ball <cjb@laptop.org>2012-11-07 14:55:29 -0500
commit63ef5d8c28b2a944f104d854254941e7375c85a3 (patch)
treef4102bfc4ab13f0ec07d28a635170373160e522d /include
parent00956ea360c3825ac9fd337758e07e193f66d1d9 (diff)
mmc: sdhci-of-esdhc: disable CMD23 for some Freescale SoCs
CMD23 causes lots of errors in kernel on some freescale SoCs (P1020, P1021, P1022, P1024, P1025 and P4080) when MMC card used, which is because these controllers does not support CMD23, even on the SoCs which declares CMD23 is supported. Therefore, we'll not use CMD23. Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mmc/sdhci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index fa8529a859b..1edcb4dad8c 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -91,6 +91,7 @@ struct sdhci_host {
unsigned int quirks2; /* More deviations from spec. */
#define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0)
+#define SDHCI_QUIRK2_HOST_NO_CMD23 (1<<1)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */