ARM: 6032/1: ARM: MMCI: support 8bit mode on the ST Micro version

This adds support for an 8bit wide bus to the card (data lines
MCIDAT0 through 7 exist) on the ST Micro version and alters the
U300 platform to support this. Also add some ST_ prefix to the
ST-specific registers.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 1ceb9a90f59b..d77062e5e3af 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -25,9 +25,11 @@
 #define MCI_CLK_ENABLE          (1 << 8)
 #define MCI_CLK_PWRSAVE         (1 << 9)
 #define MCI_CLK_BYPASS          (1 << 10)
-#define MCI_WIDE_BUS            (1 << 11)
+#define MCI_4BIT_BUS            (1 << 11)
+/* 8bit wide buses supported in ST Micro versions */
+#define MCI_ST_8BIT_BUS         (1 << 12)
 /* HW flow control on the ST Micro version */
-#define MCI_FCEN                (1 << 13)
+#define MCI_ST_FCEN             (1 << 13)
 
 #define MMCIARGUMENT            0x008
 #define MMCICOMMAND             0x00c