omap: mmc: extended to pass host capabilities from board file

wires variable is renamed, extended and this single variable to be used to
pass the platform capabilities, e.g DDR mode. Also removed the hardcoded
value was using as bus-width.

Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

21 files changed, 64 insertions, 44 deletions

diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 8538e4131d2..fc178a022dd 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -19,6 +19,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
+#include <linux/mmc/host.h>
 #include <linux/delay.h>
 #include <linux/i2c/twl.h>
 #include <linux/err.h>
@@ -190,7 +191,7 @@ static int __init omap2430_i2c_init(void)
 static struct omap2_hsmmc_info mmc[] __initdata = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.ext_clock	= 1,
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 67b95b5f1a2..3eb9839e33e 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -24,6 +24,7 @@
 #include <linux/regulator/machine.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/mmc/host.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -353,12 +354,12 @@ static struct omap2_hsmmc_info mmc[] = {
 		/* 8 bits (default) requires S6.3 == ON,
 		 * so the SIM card isn't used; else 4 bits.
 		 */
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= 4,
 	},
 	{
 		.mmc		= 2,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= 7,
 	},
 	{}	/* Terminator */
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 9447644774c..e379bef1ef4 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -193,12 +193,12 @@ static struct omap_musb_board_data musb_board_data = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= -EINVAL,
 	},
 	{
 		.mmc		= 2,
-		.wires		= 8,
+		.caps		=  MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.nonremovable   = true,
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index e10bc109415..b72009a50f0 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -31,6 +31,7 @@
 #include <linux/i2c/at24.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/machine.h>
+#include <linux/mmc/host.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/tdo24m.h>
@@ -579,14 +580,14 @@ static struct twl4030_keypad_data cm_t35_kp_data = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 
 	},
 	{
 		.mmc		= 2,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.transceiver	= 1,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index a07086d6a0b..de5e2c2f4e8 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -28,6 +28,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
+#include <linux/mmc/host.h>
 
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
@@ -105,7 +106,7 @@ static struct omap_nand_platform_data devkit8000_nand_data = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= 29,
 	},
 	{}	/* Terminator */
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 175f0433976..f3f02805691 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -20,6 +20,7 @@
 
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
+#include <linux/mmc/host.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -248,13 +249,13 @@ static struct regulator_init_data igep2_vmmc2 = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 	},
 	{
 		.mmc		= 2,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 	},
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index 00d9b13b01c..58698e359cc 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -27,6 +27,7 @@
 #include <linux/i2c/twl.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
+#include <linux/mmc/host.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -362,7 +363,7 @@ static int __init omap_i2c_init(void)
 static struct omap2_hsmmc_info mmc[] __initdata = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 	},
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index 8fd226989b2..7a93bd5b24c 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -488,7 +488,7 @@ static struct omap_mmc_platform_data mmc1_data = {
 	.max_freq			= 24000000,
 	.dma_mask			= 0xffffffff,
 	.slots[0] = {
-		.wires			= 4,
+		.caps			= MMC_CAP_4_BIT_DATA,
 		.set_power		= n8x0_mmc_set_power,
 		.set_bus_mode		= n8x0_mmc_set_bus_mode,
 		.get_cover_state	= n8x0_mmc_get_cover_state,
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 87969c7df65..51493f59325 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -27,6 +27,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
+#include <linux/mmc/host.h>
 
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
@@ -166,7 +167,7 @@ static void __init beagle_display_init(void)
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= 29,
 	},
 	{}	/* Terminator */
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index f76d9c0a47a..523ba551ee7 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -31,6 +31,7 @@
 #include <linux/smsc911x.h>
 
 #include <linux/regulator/machine.h>
+#include <linux/mmc/host.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -370,7 +371,7 @@ static struct regulator_init_data omap3evm_vsim = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= 63,
 	},
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index dd3af2be13b..2d2e6fc127a 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -32,6 +32,7 @@
 #include <linux/input.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/gpio_keys.h>
+#include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
 
 #include <asm/mach-types.h>
@@ -276,14 +277,14 @@ static void pandora_wl1251_init_card(struct mmc_card *card)
 static struct omap2_hsmmc_info omap3pandora_mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= 126,
 		.ext_clock	= 0,
 	},
 	{
 		.mmc		= 2,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= 127,
 		.ext_clock	= 1,
@@ -291,7 +292,7 @@ static struct omap2_hsmmc_info omap3pandora_mmc[] = {
 	},
 	{
 		.mmc		= 3,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.init_card	= pandora_wl1251_init_card,
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index bcd01d278c6..c1b881d3d8a 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -26,6 +26,7 @@
 
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
+#include <linux/mmc/host.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -275,7 +276,7 @@ static struct regulator_init_data omap3stalker_vsim = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 	 .mmc		= 1,
-	 .wires		= 4,
+	 .caps		= MMC_CAP_4_BIT_DATA,
 	 .gpio_cd	= -EINVAL,
 	 .gpio_wp	= 23,
 	 },
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
index 663c62d271e..9ab18fdd974 100644
--- a/arch/arm/mach-omap2/board-omap3touchbook.c
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -27,6 +27,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
+#include <linux/mmc/host.h>
 
 #include <plat/mcspi.h>
 #include <linux/spi/spi.h>
@@ -108,7 +109,7 @@ static struct omap_nand_platform_data omap3touchbook_nand_data = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= 29,
 	},
 	{}	/* Terminator */
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 96f5bbb73b6..0bb2353b64a 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -56,7 +56,7 @@ static struct omap_musb_board_data musb_board_data = {
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_wp	= -EINVAL,
 	},
 	{}	/* Terminator */
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 4c484361835..93441e5b36e 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -32,6 +32,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mmc/host.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -303,13 +304,13 @@ static void __init overo_flash_init(void)
 static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 	},
 	{
 		.mmc		= 2,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.transceiver	= true,
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 9a5eb87425f..a3dbaa7b863 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -302,7 +302,7 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
 	{
 		.name		= "external",
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.cover_only	= true,
 		.gpio_cd	= 160,
 		.gpio_wp	= -EINVAL,
@@ -311,7 +311,8 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
 	{
 		.name		= "internal",
 		.mmc		= 2,
-		.wires		= 8, /* See also rx51_mmc2_remux */
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+						/* See also rx51_mmc2_remux */
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.nonremovable	= true,
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index 6b3984964cc..e5eac46bbac 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -16,6 +16,7 @@
 #include <linux/gpio.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/machine.h>
+#include <linux/mmc/host.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -155,14 +156,14 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
 	{
 		.name		= "external",
 		.mmc		= 1,
-		.wires		= 4,
+		.caps		= MMC_CAP_4_BIT_DATA,
 		.gpio_wp	= -EINVAL,
 		.power_saving	= true,
 	},
 	{
 		.name		= "internal",
 		.mmc		= 2,
-		.wires		= 8,
+		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.nonremovable	= true,
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index dc49c07dc16..9e5d51bee94 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -694,7 +694,7 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 		omap_mux_init_signal("sdmmc_dat0", 0);
 		omap_mux_init_signal("sdmmc_dat_dir0", 0);
 		omap_mux_init_signal("sdmmc_cmd_dir", 0);
-		if (mmc_controller->slots[0].wires == 4) {
+		if (mmc_controller->slots[0].caps & MMC_CAP_4_BIT_DATA) {
 			omap_mux_init_signal("sdmmc_dat1", 0);
 			omap_mux_init_signal("sdmmc_dat2", 0);
 			omap_mux_init_signal("sdmmc_dat3", 0);
@@ -722,8 +722,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 				OMAP_PIN_INPUT_PULLUP);
 			omap_mux_init_signal("sdmmc1_dat0",
 				OMAP_PIN_INPUT_PULLUP);
-			if (mmc_controller->slots[0].wires == 4 ||
-				mmc_controller->slots[0].wires == 8) {
+			if (mmc_controller->slots[0].caps &
+				(MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) {
 				omap_mux_init_signal("sdmmc1_dat1",
 					OMAP_PIN_INPUT_PULLUP);
 				omap_mux_init_signal("sdmmc1_dat2",
@@ -731,7 +731,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 				omap_mux_init_signal("sdmmc1_dat3",
 					OMAP_PIN_INPUT_PULLUP);
 			}
-			if (mmc_controller->slots[0].wires == 8) {
+			if (mmc_controller->slots[0].caps &
+						MMC_CAP_8_BIT_DATA) {
 				omap_mux_init_signal("sdmmc1_dat4",
 					OMAP_PIN_INPUT_PULLUP);
 				omap_mux_init_signal("sdmmc1_dat5",
@@ -755,8 +756,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 			 * For 8 wire configurations, Lines DAT4, 5, 6 and 7 need to be muxed
 			 * in the board-*.c files
 			 */
-			if (mmc_controller->slots[0].wires == 4 ||
-				mmc_controller->slots[0].wires == 8) {
+			if (mmc_controller->slots[0].caps &
+				(MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) {
 				omap_mux_init_signal("sdmmc2_dat1",
 					OMAP_PIN_INPUT_PULLUP);
 				omap_mux_init_signal("sdmmc2_dat2",
@@ -764,7 +765,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 				omap_mux_init_signal("sdmmc2_dat3",
 					OMAP_PIN_INPUT_PULLUP);
 			}
-			if (mmc_controller->slots[0].wires == 8) {
+			if (mmc_controller->slots[0].caps &
+							MMC_CAP_8_BIT_DATA) {
 				omap_mux_init_signal("sdmmc2_dat4.sdmmc2_dat4",
 					OMAP_PIN_INPUT_PULLUP);
 				omap_mux_init_signal("sdmmc2_dat5.sdmmc2_dat5",
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index c8f647b6205..87ce6ffccef 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -258,7 +258,7 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
 				"mmc%islot%i", c->mmc, 1);
 		mmc->slots[0].name = hc->name;
 		mmc->nr_slots = 1;
-		mmc->slots[0].wires = c->wires;
+		mmc->slots[0].caps = c->caps;
 		mmc->slots[0].internal_clock = !c->ext_clock;
 		mmc->dma_mask = 0xffffffff;
 
@@ -316,16 +316,20 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
 			}
 
 			/* Omap3630 HSMMC1 supports only 4-bit */
-			if (cpu_is_omap3630() && c->wires > 4) {
-				c->wires = 4;
-				mmc->slots[0].wires = c->wires;
+			if (cpu_is_omap3630() &&
+					(c->caps & MMC_CAP_8_BIT_DATA)) {
+				c->caps &= ~MMC_CAP_8_BIT_DATA;
+				c->caps |= MMC_CAP_4_BIT_DATA;
+				mmc->slots[0].caps = c->caps;
 			}
 			break;
 		case 2:
 			if (c->ext_clock)
 				c->transceiver = 1;
-			if (c->transceiver && c->wires > 4)
-				c->wires = 4;
+			if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
+				c->caps &= ~MMC_CAP_8_BIT_DATA;
+				c->caps |= MMC_CAP_4_BIT_DATA;
+			}
 			/* FALLTHROUGH */
 		case 3:
 			if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 1fe6f018717..281e97287ad 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -10,7 +10,8 @@ struct mmc_card;
 
 struct omap2_hsmmc_info {
 	u8	mmc;		/* controller 1/2/3 */
-	u8	wires;		/* 1/4/8 wires */
+	u32	caps;		/* 4/8 wires and any additional host
+				 * capabilities OR'd (ref. linux/mmc/host.h) */
 	bool	transceiver;	/* MMC-2 option */
 	bool	ext_clock;	/* use external pin for input clock */
 	bool	cover_only;	/* No card detect - just cover switch */
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
index 9b89ec601ee..4f819fc261b 100644
--- a/arch/arm/plat-omap/include/plat/mmc.h
+++ b/arch/arm/plat-omap/include/plat/mmc.h
@@ -73,10 +73,9 @@ struct omap_mmc_platform_data {
 
 	struct omap_mmc_slot_data {
 
-		/* 4 wire signaling is optional, and is used for SD/SDIO/HSMMC;
-		 * 8 wire signaling is also optional, and is used with HSMMC
-		 */
-		u8 wires;
+		/* 4/8 wires and any additional host capabilities
+		 * need to OR'd all capabilities (ref. linux/mmc/host.h) */
+		u32 caps;
 
 		/*
 		 * nomux means "standard" muxing is wrong on this board, and