omap mmc: Add low-level initialization for hsmmc controller

Add low-level initialization for hsmmc controller. Merged into
this patch patch are various improvments and board support by
Grazvydas Ignotas and David Brownell.

Also change wire4 to be wires, as some newer controllers support
8 data lines.

Cc: Pierre Ossman <drzeus-mmc@drzeus.cx>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 6748de6e19a8..83fa37211d77 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/delay.h>
+#include <linux/i2c/twl4030.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
@@ -35,6 +36,7 @@
 #include <mach/common.h>
 #include <mach/gpmc.h>
 
+#include "mmc-twl4030.h"
 
 #define	SDP2430_FLASH_CS	0
 #define	SDP2430_SMC91X_CS	5
@@ -197,12 +199,58 @@ static struct omap_board_config_kernel sdp2430_config[] = {
 	{OMAP_TAG_UART, &sdp2430_uart_config},
 };
 
+
+static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
+	.gpio_base	= OMAP_MAX_GPIO_LINES,
+	.irq_base	= TWL4030_GPIO_IRQ_BASE,
+	.irq_end	= TWL4030_GPIO_IRQ_END,
+};
+
+static struct twl4030_platform_data sdp2430_twldata = {
+	.irq_base	= TWL4030_IRQ_BASE,
+	.irq_end	= TWL4030_IRQ_END,
+
+	/* platform_data for children goes here */
+	.gpio		= &sdp2430_gpio_data,
+};
+
+static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
+	{
+		I2C_BOARD_INFO("twl4030", 0x48),
+		.flags = I2C_CLIENT_WAKE,
+		.irq = INT_24XX_SYS_NIRQ,
+		.platform_data = &sdp2430_twldata,
+	},
+};
+
+static int __init omap2430_i2c_init(void)
+{
+	omap_register_i2c_bus(1, 400, NULL, 0);
+	omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
+			ARRAY_SIZE(sdp2430_i2c_boardinfo));
+	return 0;
+}
+
+static struct twl4030_hsmmc_info mmc[] __initdata = {
+	{
+		.mmc		= 1,
+		.wires		= 4,
+		.gpio_cd	= -EINVAL,
+		.gpio_wp	= -EINVAL,
+		.ext_clock	= 1,
+	},
+	{}	/* Terminator */
+};
+
 static void __init omap_2430sdp_init(void)
 {
+	omap2430_i2c_init();
+
 	platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 	omap_board_config = sdp2430_config;
 	omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 	omap_serial_init();
+	twl4030_mmc_init(mmc);
 }
 
 static void __init omap_2430sdp_map_io(void)