mmc: tmio: add TMIO_MMC_SDIO_STATUS_QUIRK

Renesas R-Car SDHI should set reserved bits
on CTL_SDIO_STATUS register when writing.
This patch adds new TMIO_MMC_SDIO_STATUS_QUIRK flags
for this purpose

[Kuninori Morimoto: tidyuped for upstreaming
                    enabled this flags for all SH-Mobile/R-Car]

Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 7432d95b08e2..a7493ae01b58 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -89,6 +89,11 @@
  */
 #define TMIO_MMC_HAVE_CMD12_CTRL        (1 << 7)
 
+/*
+ * Some controllers needs to set 1 on SDIO status reserved bits
+ */
+#define TMIO_MMC_SDIO_STATUS_QUIRK      (1 << 8)
+
 int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
 int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
 void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);