diff options
Diffstat (limited to 'arch/arm/mach-msm/board-trout-mmc.c')
| -rw-r--r-- | arch/arm/mach-msm/board-trout-mmc.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/arch/arm/mach-msm/board-trout-mmc.c b/arch/arm/mach-msm/board-trout-mmc.c deleted file mode 100644 index 3723e55..0000000 --- a/arch/arm/mach-msm/board-trout-mmc.c +++ /dev/null @@ -1,185 +0,0 @@ -/* linux/arch/arm/mach-msm/board-trout-mmc.c -** Author: Brian Swetland <swetland@google.com> -*/ -#include <linux/gpio.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/mmc/host.h> -#include <linux/mmc/sdio_ids.h> -#include <linux/err.h> -#include <linux/debugfs.h> - -#include <asm/io.h> - -#include <mach/vreg.h> - -#include <linux/platform_data/mmc-msm_sdcc.h> - -#include "devices.h" - -#include "board-trout.h" - -#include "proc_comm.h" - -#define DEBUG_SDSLOT_VDD 1 - -/* ---- COMMON ---- */ -static void config_gpio_table(uint32_t *table, int len) -{ - int n; - unsigned id; - for(n = 0; n < len; n++) { - id = table[n]; - msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0); - } -} - -/* ---- SDCARD ---- */ - -static uint32_t sdcard_on_gpio_table[] = { - PCOM_GPIO_CFG(62, 2, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */ - PCOM_GPIO_CFG(63, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */ - PCOM_GPIO_CFG(64, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT3 */ - PCOM_GPIO_CFG(65, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT2 */ - PCOM_GPIO_CFG(66, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */ - PCOM_GPIO_CFG(67, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */ -}; - -static uint32_t sdcard_off_gpio_table[] = { - PCOM_GPIO_CFG(62, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */ - PCOM_GPIO_CFG(63, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */ - PCOM_GPIO_CFG(64, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */ - PCOM_GPIO_CFG(65, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */ - PCOM_GPIO_CFG(66, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */ - PCOM_GPIO_CFG(67, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */ -}; - -static uint opt_disable_sdcard; - -static int __init trout_disablesdcard_setup(char *str) -{ - int cal = simple_strtol(str, NULL, 0); - - opt_disable_sdcard = cal; - return 1; -} - -__setup("board_trout.disable_sdcard=", trout_disablesdcard_setup); - -static struct vreg *vreg_sdslot; /* SD slot power */ - -struct mmc_vdd_xlat { - int mask; - int level; -}; - -static struct mmc_vdd_xlat mmc_vdd_table[] = { - { MMC_VDD_165_195, 1800 }, - { MMC_VDD_20_21, 2050 }, - { MMC_VDD_21_22, 2150 }, - { MMC_VDD_22_23, 2250 }, - { MMC_VDD_23_24, 2350 }, - { MMC_VDD_24_25, 2450 }, - { MMC_VDD_25_26, 2550 }, - { MMC_VDD_26_27, 2650 }, - { MMC_VDD_27_28, 2750 }, - { MMC_VDD_28_29, 2850 }, - { MMC_VDD_29_30, 2950 }, -}; - -static unsigned int sdslot_vdd = 0xffffffff; -static unsigned int sdslot_vreg_enabled; - -static uint32_t trout_sdslot_switchvdd(struct device *dev, unsigned int vdd) -{ - int i, rc; - - BUG_ON(!vreg_sdslot); - - if (vdd == sdslot_vdd) - return 0; - - sdslot_vdd = vdd; - - if (vdd == 0) { -#if DEBUG_SDSLOT_VDD - printk("%s: Disabling SD slot power\n", __func__); -#endif - config_gpio_table(sdcard_off_gpio_table, - ARRAY_SIZE(sdcard_off_gpio_table)); - vreg_disable(vreg_sdslot); - sdslot_vreg_enabled = 0; - return 0; - } - - if (!sdslot_vreg_enabled) { - rc = vreg_enable(vreg_sdslot); - if (rc) { - printk(KERN_ERR "%s: Error enabling vreg (%d)\n", - __func__, rc); - } - config_gpio_table(sdcard_on_gpio_table, - ARRAY_SIZE(sdcard_on_gpio_table)); - sdslot_vreg_enabled = 1; - } - - for (i = 0; i < ARRAY_SIZE(mmc_vdd_table); i++) { - if (mmc_vdd_table[i].mask == (1 << vdd)) { -#if DEBUG_SDSLOT_VDD - printk("%s: Setting level to %u\n", - __func__, mmc_vdd_table[i].level); -#endif - rc = vreg_set_level(vreg_sdslot, - mmc_vdd_table[i].level); - if (rc) { - printk(KERN_ERR - "%s: Error setting vreg level (%d)\n", - __func__, rc); - } - return 0; - } - } - - printk(KERN_ERR "%s: Invalid VDD %d specified\n", __func__, vdd); - return 0; -} - -static unsigned int trout_sdslot_status(struct device *dev) -{ - unsigned int status; - - status = (unsigned int) gpio_get_value(TROUT_GPIO_SDMC_CD_N); - return (!status); -} - -#define TROUT_MMC_VDD MMC_VDD_165_195 | MMC_VDD_20_21 | MMC_VDD_21_22 \ - | MMC_VDD_22_23 | MMC_VDD_23_24 | MMC_VDD_24_25 \ - | MMC_VDD_25_26 | MMC_VDD_26_27 | MMC_VDD_27_28 \ - | MMC_VDD_28_29 | MMC_VDD_29_30 - -static struct msm_mmc_platform_data trout_sdslot_data = { - .ocr_mask = TROUT_MMC_VDD, - .status = trout_sdslot_status, - .translate_vdd = trout_sdslot_switchvdd, -}; - -int __init trout_init_mmc(unsigned int sys_rev) -{ - sdslot_vreg_enabled = 0; - - vreg_sdslot = vreg_get(0, "gp6"); - if (IS_ERR(vreg_sdslot)) - return PTR_ERR(vreg_sdslot); - - irq_set_irq_wake(TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 1); - - if (!opt_disable_sdcard) - msm_add_sdcc(2, &trout_sdslot_data, - TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 0); - else - printk(KERN_INFO "trout: SD-Card interface disabled\n"); - return 0; -} - |
