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ARM: OMAP3LOGIC: Adding SDMMC support 

Add low-level initialization for hsmmc controller for
LogicPD's OMAP 3530 LV SOM and OMAP 35x Torpedo board.

Signed-off-by: Tim Nordell <tim.nordell@logicpd.com>
[tony@atomide.com: updated for the recent mmc platform init changes]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tim Nordell 2010-09-27 16:05:48 +00:00 committed by Tony Lindgren
parent d40f3f15d3
commit 8430281b0a
1 changed files with 38 additions and 1 deletions
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39
arch/arm/mach-omap2/board-omap3logic.c
View File

@ -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>
@ -33,6 +34,7 @@
#include <asm/mach/map.h>
#include "mux.h"
#include "hsmmc.h"
#include <plat/mux.h>
#include <plat/board.h>
@ -87,6 +89,7 @@ static struct twl4030_platform_data omap3logic_twldata = {
/* platform_data for children goes here */
.gpio = &omap3logic_gpio_data,
.vmmc1 = &omap3logic_vmmc1,
};
static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = {
@ -105,6 +108,40 @@ static int __init omap3logic_i2c_init(void)
return 0;
}
static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
{
.name = "external",
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};
static void __init board_mmc_init(void)
{
if (machine_is_omap3530_lv_som()) {
/* OMAP3530 LV SOM board */
board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
} else if (machine_is_omap3_torpedo()) {
/* OMAP3 Torpedo board */
board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
} else {
/* unsupported board */
printk(KERN_ERR "%s(): unknown machine type\n", __func__);
return;
}
omap2_hsmmc_init(board_mmc_info);
/* link regulators to MMC adapters */
omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
}
static void __init omap3logic_init_irq(void)
{
omap2_init_common_hw(NULL, NULL);
@ -116,7 +153,7 @@ static void __init omap3logic_init(void)
{
omap3logic_i2c_init();
omap_serial_init();
board_mmc_init();
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);