1 files changed, 0 insertions, 542 deletions

diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c
deleted file mode 100644
index 8afe9dd3f150..000000000000
--- a/arch/arm/mach-omap2/mmc-twl4030.c
+++ /dev/null
@@ -1,542 +0,0 @@
-/*
- * linux/arch/arm/mach-omap2/mmc-twl4030.c
- *
- * Copyright (C) 2007-2008 Texas Instruments
- * Copyright (C) 2008 Nokia Corporation
- * Author: Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-#include <linux/mmc/host.h>
-#include <linux/regulator/consumer.h>
-
-#include <mach/hardware.h>
-#include <plat/control.h>
-#include <plat/mmc.h>
-#include <plat/board.h>
-
-#include "mmc-twl4030.h"
-
-
-#if defined(CONFIG_REGULATOR) && \
-	(defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE))
-
-static u16 control_pbias_offset;
-static u16 control_devconf1_offset;
-
-#define HSMMC_NAME_LEN	9
-
-static struct twl_mmc_controller {
-	struct omap_mmc_platform_data	*mmc;
-	/* Vcc == configured supply
-	 * Vcc_alt == optional
-	 *   -	MMC1, supply for DAT4..DAT7
-	 *   -	MMC2/MMC2, external level shifter voltage supply, for
-	 *	chip (SDIO, eMMC, etc) or transceiver (MMC2 only)
-	 */
-	struct regulator		*vcc;
-	struct regulator		*vcc_aux;
-	char				name[HSMMC_NAME_LEN + 1];
-} hsmmc[OMAP34XX_NR_MMC];
-
-static int twl_mmc_card_detect(int irq)
-{
-	unsigned i;
-
-	for (i = 0; i < ARRAY_SIZE(hsmmc); i++) {
-		struct omap_mmc_platform_data *mmc;
-
-		mmc = hsmmc[i].mmc;
-		if (!mmc)
-			continue;
-		if (irq != mmc->slots[0].card_detect_irq)
-			continue;
-
-		/* NOTE: assumes card detect signal is active-low */
-		return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
-	}
-	return -ENOSYS;
-}
-
-static int twl_mmc_get_ro(struct device *dev, int slot)
-{
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-
-	/* NOTE: assumes write protect signal is active-high */
-	return gpio_get_value_cansleep(mmc->slots[0].gpio_wp);
-}
-
-static int twl_mmc_get_cover_state(struct device *dev, int slot)
-{
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-
-	/* NOTE: assumes card detect signal is active-low */
-	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
-}
-
-/*
- * MMC Slot Initialization.
- */
-static int twl_mmc_late_init(struct device *dev)
-{
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-	int ret = 0;
-	int i;
-
-	/* MMC/SD/SDIO doesn't require a card detect switch */
-	if (gpio_is_valid(mmc->slots[0].switch_pin)) {
-		ret = gpio_request(mmc->slots[0].switch_pin, "mmc_cd");
-		if (ret)
-			goto done;
-		ret = gpio_direction_input(mmc->slots[0].switch_pin);
-		if (ret)
-			goto err;
-	}
-
-	/* require at least main regulator */
-	for (i = 0; i < ARRAY_SIZE(hsmmc); i++) {
-		if (hsmmc[i].name == mmc->slots[0].name) {
-			struct regulator *reg;
-
-			hsmmc[i].mmc = mmc;
-
-			reg = regulator_get(dev, "vmmc");
-			if (IS_ERR(reg)) {
-				dev_dbg(dev, "vmmc regulator missing\n");
-				/* HACK: until fixed.c regulator is usable,
-				 * we don't require a main regulator
-				 * for MMC2 or MMC3
-				 */
-				if (i != 0)
-					break;
-				ret = PTR_ERR(reg);
-				hsmmc[i].vcc = NULL;
-				goto err;
-			}
-			hsmmc[i].vcc = reg;
-			mmc->slots[0].ocr_mask = mmc_regulator_get_ocrmask(reg);
-
-			/* allow an aux regulator */
-			reg = regulator_get(dev, "vmmc_aux");
-			hsmmc[i].vcc_aux = IS_ERR(reg) ? NULL : reg;
-
-			/* UGLY HACK:  workaround regulator framework bugs.
-			 * When the bootloader leaves a supply active, it's
-			 * initialized with zero usecount ... and we can't
-			 * disable it without first enabling it.  Until the
-			 * framework is fixed, we need a workaround like this
-			 * (which is safe for MMC, but not in general).
-			 */
-			if (regulator_is_enabled(hsmmc[i].vcc) > 0) {
-				regulator_enable(hsmmc[i].vcc);
-				regulator_disable(hsmmc[i].vcc);
-			}
-			if (hsmmc[i].vcc_aux) {
-				if (regulator_is_enabled(reg) > 0) {
-					regulator_enable(reg);
-					regulator_disable(reg);
-				}
-			}
-
-			break;
-		}
-	}
-
-	return 0;
-
-err:
-	gpio_free(mmc->slots[0].switch_pin);
-done:
-	mmc->slots[0].card_detect_irq = 0;
-	mmc->slots[0].card_detect = NULL;
-
-	dev_err(dev, "err %d configuring card detect\n", ret);
-	return ret;
-}
-
-static void twl_mmc_cleanup(struct device *dev)
-{
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-	int i;
-
-	gpio_free(mmc->slots[0].switch_pin);
-	for(i = 0; i < ARRAY_SIZE(hsmmc); i++) {
-		regulator_put(hsmmc[i].vcc);
-		regulator_put(hsmmc[i].vcc_aux);
-	}
-}
-
-#ifdef CONFIG_PM
-
-static int twl_mmc_suspend(struct device *dev, int slot)
-{
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-
-	disable_irq(mmc->slots[0].card_detect_irq);
-	return 0;
-}
-
-static int twl_mmc_resume(struct device *dev, int slot)
-{
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-
-	enable_irq(mmc->slots[0].card_detect_irq);
-	return 0;
-}
-
-#else
-#define twl_mmc_suspend	NULL
-#define twl_mmc_resume	NULL
-#endif
-
-#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
-
-static int twl4030_mmc_get_context_loss(struct device *dev)
-{
-	/* FIXME: PM DPS not implemented yet */
-	return 0;
-}
-
-#else
-#define twl4030_mmc_get_context_loss NULL
-#endif
-
-static int twl_mmc1_set_power(struct device *dev, int slot, int power_on,
-				int vdd)
-{
-	u32 reg, prog_io;
-	int ret = 0;
-	struct twl_mmc_controller *c = &hsmmc[0];
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-
-	/*
-	 * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
-	 * card with Vcc regulator (from twl4030 or whatever).  OMAP has both
-	 * 1.8V and 3.0V modes, controlled by the PBIAS register.
-	 *
-	 * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which
-	 * is most naturally TWL VSIM; those pins also use PBIAS.
-	 *
-	 * FIXME handle VMMC1A as needed ...
-	 */
-	if (power_on) {
-		if (cpu_is_omap2430()) {
-			reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1);
-			if ((1 << vdd) >= MMC_VDD_30_31)
-				reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE;
-			else
-				reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE;
-			omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
-		}
-
-		if (mmc->slots[0].internal_clock) {
-			reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-			reg |= OMAP2_MMCSDIO1ADPCLKISEL;
-			omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
-		}
-
-		reg = omap_ctrl_readl(control_pbias_offset);
-		if (cpu_is_omap3630()) {
-			/* Set MMC I/O to 52Mhz */
-			prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1);
-			prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL;
-			omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1);
-		} else {
-			reg |= OMAP2_PBIASSPEEDCTRL0;
-		}
-		reg &= ~OMAP2_PBIASLITEPWRDNZ0;
-		omap_ctrl_writel(reg, control_pbias_offset);
-
-		ret = mmc_regulator_set_ocr(c->vcc, vdd);
-
-		/* 100ms delay required for PBIAS configuration */
-		msleep(100);
-		reg = omap_ctrl_readl(control_pbias_offset);
-		reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0);
-		if ((1 << vdd) <= MMC_VDD_165_195)
-			reg &= ~OMAP2_PBIASLITEVMODE0;
-		else
-			reg |= OMAP2_PBIASLITEVMODE0;
-		omap_ctrl_writel(reg, control_pbias_offset);
-	} else {
-		reg = omap_ctrl_readl(control_pbias_offset);
-		reg &= ~OMAP2_PBIASLITEPWRDNZ0;
-		omap_ctrl_writel(reg, control_pbias_offset);
-
-		ret = mmc_regulator_set_ocr(c->vcc, 0);
-
-		/* 100ms delay required for PBIAS configuration */
-		msleep(100);
-		reg = omap_ctrl_readl(control_pbias_offset);
-		reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
-			OMAP2_PBIASLITEVMODE0);
-		omap_ctrl_writel(reg, control_pbias_offset);
-	}
-
-	return ret;
-}
-
-static int twl_mmc23_set_power(struct device *dev, int slot, int power_on, int vdd)
-{
-	int ret = 0;
-	struct twl_mmc_controller *c = NULL;
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-	int i;
-
-	for (i = 1; i < ARRAY_SIZE(hsmmc); i++) {
-		if (mmc == hsmmc[i].mmc) {
-			c = &hsmmc[i];
-			break;
-		}
-	}
-
-	if (c == NULL)
-		return -ENODEV;
-
-	/* If we don't see a Vcc regulator, assume it's a fixed
-	 * voltage always-on regulator.
-	 */
-	if (!c->vcc)
-		return 0;
-
-	/*
-	 * Assume Vcc regulator is used only to power the card ... OMAP
-	 * VDDS is used to power the pins, optionally with a transceiver to
-	 * support cards using voltages other than VDDS (1.8V nominal).  When a
-	 * transceiver is used, DAT3..7 are muxed as transceiver control pins.
-	 *
-	 * In some cases this regulator won't support enable/disable;
-	 * e.g. it's a fixed rail for a WLAN chip.
-	 *
-	 * In other cases vcc_aux switches interface power.  Example, for
-	 * eMMC cards it represents VccQ.  Sometimes transceivers or SDIO
-	 * chips/cards need an interface voltage rail too.
-	 */
-	if (power_on) {
-		/* only MMC2 supports a CLKIN */
-		if (mmc->slots[0].internal_clock) {
-			u32 reg;
-
-			reg = omap_ctrl_readl(control_devconf1_offset);
-			reg |= OMAP2_MMCSDIO2ADPCLKISEL;
-			omap_ctrl_writel(reg, control_devconf1_offset);
-		}
-		ret = mmc_regulator_set_ocr(c->vcc, vdd);
-		/* enable interface voltage rail, if needed */
-		if (ret == 0 && c->vcc_aux) {
-			ret = regulator_enable(c->vcc_aux);
-			if (ret < 0)
-				ret = mmc_regulator_set_ocr(c->vcc, 0);
-		}
-	} else {
-		if (c->vcc_aux && (ret = regulator_is_enabled(c->vcc_aux)) > 0)
-			ret = regulator_disable(c->vcc_aux);
-		if (ret == 0)
-			ret = mmc_regulator_set_ocr(c->vcc, 0);
-	}
-
-	return ret;
-}
-
-static int twl_mmc1_set_sleep(struct device *dev, int slot, int sleep, int vdd,
-			      int cardsleep)
-{
-	struct twl_mmc_controller *c = &hsmmc[0];
-	int mode = sleep ? REGULATOR_MODE_STANDBY : REGULATOR_MODE_NORMAL;
-
-	return regulator_set_mode(c->vcc, mode);
-}
-
-static int twl_mmc23_set_sleep(struct device *dev, int slot, int sleep, int vdd,
-			       int cardsleep)
-{
-	struct twl_mmc_controller *c = NULL;
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
-	int i, err, mode;
-
-	for (i = 1; i < ARRAY_SIZE(hsmmc); i++) {
-		if (mmc == hsmmc[i].mmc) {
-			c = &hsmmc[i];
-			break;
-		}
-	}
-
-	if (c == NULL)
-		return -ENODEV;
-
-	/*
-	 * If we don't see a Vcc regulator, assume it's a fixed
-	 * voltage always-on regulator.
-	 */
-	if (!c->vcc)
-		return 0;
-
-	mode = sleep ? REGULATOR_MODE_STANDBY : REGULATOR_MODE_NORMAL;
-
-	if (!c->vcc_aux)
-		return regulator_set_mode(c->vcc, mode);
-
-	if (cardsleep) {
-		/* VCC can be turned off if card is asleep */
-		struct regulator *vcc_aux = c->vcc_aux;
-
-		c->vcc_aux = NULL;
-		if (sleep)
-			err = twl_mmc23_set_power(dev, slot, 0, 0);
-		else
-			err = twl_mmc23_set_power(dev, slot, 1, vdd);
-		c->vcc_aux = vcc_aux;
-	} else
-		err = regulator_set_mode(c->vcc, mode);
-	if (err)
-		return err;
-	return regulator_set_mode(c->vcc_aux, mode);
-}
-
-static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata;
-
-void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers)
-{
-	struct twl4030_hsmmc_info *c;
-	int nr_hsmmc = ARRAY_SIZE(hsmmc_data);
-	int i;
-
-	if (cpu_is_omap2430()) {
-		control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE;
-		control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1;
-		nr_hsmmc = 2;
-	} else {
-		control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
-		control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1;
-	}
-
-	for (c = controllers; c->mmc; c++) {
-		struct twl_mmc_controller *twl = hsmmc + c->mmc - 1;
-		struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1];
-
-		if (!c->mmc || c->mmc > nr_hsmmc) {
-			pr_debug("MMC%d: no such controller\n", c->mmc);
-			continue;
-		}
-		if (mmc) {
-			pr_debug("MMC%d: already configured\n", c->mmc);
-			continue;
-		}
-
-		mmc = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL);
-		if (!mmc) {
-			pr_err("Cannot allocate memory for mmc device!\n");
-			goto done;
-		}
-
-		if (c->name)
-			strncpy(twl->name, c->name, HSMMC_NAME_LEN);
-		else
-			snprintf(twl->name, ARRAY_SIZE(twl->name),
-				"mmc%islot%i", c->mmc, 1);
-		mmc->slots[0].name = twl->name;
-		mmc->nr_slots = 1;
-		mmc->slots[0].wires = c->wires;
-		mmc->slots[0].internal_clock = !c->ext_clock;
-		mmc->dma_mask = 0xffffffff;
-		mmc->init = twl_mmc_late_init;
-
-		/* note: twl4030 card detect GPIOs can disable VMMCx ... */
-		if (gpio_is_valid(c->gpio_cd)) {
-			mmc->cleanup = twl_mmc_cleanup;
-			mmc->suspend = twl_mmc_suspend;
-			mmc->resume = twl_mmc_resume;
-
-			mmc->slots[0].switch_pin = c->gpio_cd;
-			mmc->slots[0].card_detect_irq = gpio_to_irq(c->gpio_cd);
-			if (c->cover_only)
-				mmc->slots[0].get_cover_state = twl_mmc_get_cover_state;
-			else
-				mmc->slots[0].card_detect = twl_mmc_card_detect;
-		} else
-			mmc->slots[0].switch_pin = -EINVAL;
-
-		mmc->get_context_loss_count =
-				twl4030_mmc_get_context_loss;
-
-		/* write protect normally uses an OMAP gpio */
-		if (gpio_is_valid(c->gpio_wp)) {
-			gpio_request(c->gpio_wp, "mmc_wp");
-			gpio_direction_input(c->gpio_wp);
-
-			mmc->slots[0].gpio_wp = c->gpio_wp;
-			mmc->slots[0].get_ro = twl_mmc_get_ro;
-		} else
-			mmc->slots[0].gpio_wp = -EINVAL;
-
-		if (c->nonremovable)
-			mmc->slots[0].nonremovable = 1;
-
-		if (c->power_saving)
-			mmc->slots[0].power_saving = 1;
-
-		/* NOTE:  MMC slots should have a Vcc regulator set up.
-		 * This may be from a TWL4030-family chip, another
-		 * controllable regulator, or a fixed supply.
-		 *
-		 * temporary HACK: ocr_mask instead of fixed supply
-		 */
-		mmc->slots[0].ocr_mask = c->ocr_mask;
-
-		switch (c->mmc) {
-		case 1:
-			/* on-chip level shifting via PBIAS0/PBIAS1 */
-			mmc->slots[0].set_power = twl_mmc1_set_power;
-			mmc->slots[0].set_sleep = twl_mmc1_set_sleep;
-
-			/* Omap3630 HSMMC1 supports only 4-bit */
-			if (cpu_is_omap3630() && c->wires > 4) {
-				c->wires = 4;
-				mmc->slots[0].wires = c->wires;
-			}
-			break;
-		case 2:
-			if (c->ext_clock)
-				c->transceiver = 1;
-			if (c->transceiver && c->wires > 4)
-				c->wires = 4;
-			/* FALLTHROUGH */
-		case 3:
-			/* off-chip level shifting, or none */
-			mmc->slots[0].set_power = twl_mmc23_set_power;
-			mmc->slots[0].set_sleep = twl_mmc23_set_sleep;
-			break;
-		default:
-			pr_err("MMC%d configuration not supported!\n", c->mmc);
-			kfree(mmc);
-			continue;
-		}
-		hsmmc_data[c->mmc - 1] = mmc;
-	}
-
-	omap2_init_mmc(hsmmc_data, OMAP34XX_NR_MMC);
-
-	/* pass the device nodes back to board setup code */
-	for (c = controllers; c->mmc; c++) {
-		struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1];
-
-		if (!c->mmc || c->mmc > nr_hsmmc)
-			continue;
-		c->dev = mmc->dev;
-	}
-
-done:
-	for (i = 0; i < nr_hsmmc; i++)
-		kfree(hsmmc_data[i]);
-}
-
-#endif