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>

23 files changed, 67 insertions, 61 deletions

diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 8538e4131d27..fc178a022dd2 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 67b95b5f1a2f..3eb9839e33ed 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 9447644774c2..e379bef1ef40 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 e10bc109415c..b72009a50f01 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 a07086d6a0b2..de5e2c2f4e80 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 175f04339761..f3f028056916 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 00d9b13b01c5..58698e359ccf 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 8fd226989b25..7a93bd5b24c5 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 87969c7df652..51493f59325d 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 f76d9c0a47a1..523ba551ee7b 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 dd3af2be13be..2d2e6fc127ac 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 bcd01d278c65..c1b881d3d8ae 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 663c62d271e8..9ab18fdd974c 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 96f5bbb73b6f..0bb2353b64a4 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 4c4843618350..93441e5b36ef 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 9a5eb87425fc..a3dbaa7b8632 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 6b3984964cc5..e5eac46bbac9 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 dc49c07dc161..9e5d51bee94a 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 c8f647b6205e..87ce6ffccefc 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 1fe6f0187177..281e97287adf 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 9b89ec601ee2..4f819fc261b7 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
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index d98ddcfac5e5..a9d62cfa87a2 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1317,7 +1317,7 @@ static int __init mmc_omap_new_slot(struct mmc_omap_host *host, int id)
         host->slots[id] = slot;
 
         mmc->caps = 0;
-        if (host->pdata->slots[id].wires >= 4)
+        if (host->pdata->slots[id].caps & MMC_CAP_8_BIT_DATA)
                 mmc->caps |= MMC_CAP_4_BIT_DATA;
 
         mmc->ops = &mmc_omap_ops;
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 4526d2791f29..53f8fa599cf5 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2116,23 +2116,9 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
         mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
                      MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE;
 
-        switch (mmc_slot(host).wires) {
-        case 8:
-                mmc->caps |= MMC_CAP_8_BIT_DATA;
-                /* Fall through */
-        case 4:
+        mmc->caps |= mmc_slot(host).caps;
+        if (mmc->caps & MMC_CAP_8_BIT_DATA)
                 mmc->caps |= MMC_CAP_4_BIT_DATA;
-                break;
-        case 1:
-                /* Nothing to crib here */
-        case 0:
-                /* Assuming nothing was given by board, Core use's 1-Bit */
-                break;
-        default:
-                /* Completely unexpected.. Core goes with 1-Bit Width */
-                dev_crit(mmc_dev(host->mmc), "Invalid width %d\n used!"
-                        "using 1 instead\n", mmc_slot(host).wires);
-        }
 
         if (mmc_slot(host).nonremovable)
                 mmc->caps |= MMC_CAP_NONREMOVABLE;