2008-12-10 18:37:17 -07:00
|
|
|
/*
|
2010-02-15 11:03:34 -07:00
|
|
|
* linux/arch/arm/mach-omap2/hsmmc.c
|
2008-12-10 18:37:17 -07:00
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*/
|
2010-02-15 11:03:34 -07:00
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/string.h>
|
2008-12-10 18:37:17 -07:00
|
|
|
#include <linux/delay.h>
|
2011-07-04 05:10:00 -06:00
|
|
|
#include <linux/gpio.h>
|
2012-08-30 16:37:24 -06:00
|
|
|
#include <linux/platform_data/gpio-omap.h>
|
|
|
|
|
2012-10-05 14:25:59 -06:00
|
|
|
#include "soc.h"
|
2012-10-02 18:25:48 -06:00
|
|
|
#include "omap_device.h"
|
2012-10-03 17:36:40 -06:00
|
|
|
#include "omap-pm.h"
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2011-02-28 08:18:03 -07:00
|
|
|
#include "mux.h"
|
2012-10-15 13:09:43 -06:00
|
|
|
#include "mmc.h"
|
2010-02-15 11:03:34 -07:00
|
|
|
#include "hsmmc.h"
|
2010-10-08 11:40:20 -06:00
|
|
|
#include "control.h"
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2010-02-15 11:03:34 -07:00
|
|
|
#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
|
2008-12-10 18:37:17 -07:00
|
|
|
|
|
|
|
static u16 control_pbias_offset;
|
|
|
|
static u16 control_devconf1_offset;
|
2010-05-15 12:21:25 -06:00
|
|
|
static u16 control_mmc1;
|
2008-12-10 18:37:17 -07:00
|
|
|
|
|
|
|
#define HSMMC_NAME_LEN 9
|
|
|
|
|
2009-09-22 17:44:40 -06:00
|
|
|
#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
|
|
|
|
|
2010-02-15 11:03:34 -07:00
|
|
|
static int hsmmc_get_context_loss(struct device *dev)
|
2009-09-22 17:44:40 -06:00
|
|
|
{
|
2010-02-15 11:03:34 -07:00
|
|
|
return omap_pm_get_dev_context_loss_count(dev);
|
2009-09-22 17:44:40 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
2010-02-15 11:03:34 -07:00
|
|
|
#define hsmmc_get_context_loss NULL
|
2009-09-22 17:44:40 -06:00
|
|
|
#endif
|
|
|
|
|
2010-05-15 12:21:25 -06:00
|
|
|
static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
|
2010-02-15 11:03:34 -07:00
|
|
|
int power_on, int vdd)
|
2008-12-10 18:37:17 -07:00
|
|
|
{
|
2009-11-22 11:11:08 -07:00
|
|
|
u32 reg, prog_io;
|
2008-12-10 18:37:17 -07:00
|
|
|
struct omap_mmc_platform_data *mmc = dev->platform_data;
|
|
|
|
|
2010-02-15 11:03:34 -07:00
|
|
|
if (mmc->slots[0].remux)
|
|
|
|
mmc->slots[0].remux(dev, slot, power_on);
|
|
|
|
|
2009-03-23 19:23:47 -06:00
|
|
|
/*
|
|
|
|
* Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
|
2009-05-28 15:04:03 -06:00
|
|
|
* card with Vcc regulator (from twl4030 or whatever). OMAP has both
|
2009-03-23 19:23:47 -06:00
|
|
|
* 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.
|
2009-05-28 15:04:03 -06:00
|
|
|
*
|
|
|
|
* FIXME handle VMMC1A as needed ...
|
2009-03-23 19:23:47 -06:00
|
|
|
*/
|
2008-12-10 18:37:17 -07:00
|
|
|
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);
|
2009-11-22 11:11:08 -07:00
|
|
|
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;
|
|
|
|
}
|
2008-12-10 18:37:17 -07:00
|
|
|
reg &= ~OMAP2_PBIASLITEPWRDNZ0;
|
|
|
|
omap_ctrl_writel(reg, control_pbias_offset);
|
2010-02-15 11:03:34 -07:00
|
|
|
} else {
|
|
|
|
reg = omap_ctrl_readl(control_pbias_offset);
|
|
|
|
reg &= ~OMAP2_PBIASLITEPWRDNZ0;
|
|
|
|
omap_ctrl_writel(reg, control_pbias_offset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-05-15 12:21:25 -06:00
|
|
|
static void omap_hsmmc1_after_set_reg(struct device *dev, int slot,
|
2010-02-15 11:03:34 -07:00
|
|
|
int power_on, int vdd)
|
|
|
|
{
|
|
|
|
u32 reg;
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2010-02-15 11:03:34 -07:00
|
|
|
/* 100ms delay required for PBIAS configuration */
|
|
|
|
msleep(100);
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2010-02-15 11:03:34 -07:00
|
|
|
if (power_on) {
|
2008-12-10 18:37:17 -07:00
|
|
|
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_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
|
|
|
|
OMAP2_PBIASLITEVMODE0);
|
|
|
|
omap_ctrl_writel(reg, control_pbias_offset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-05-15 12:21:25 -06:00
|
|
|
static void omap4_hsmmc1_before_set_reg(struct device *dev, int slot,
|
|
|
|
int power_on, int vdd)
|
|
|
|
{
|
|
|
|
u32 reg;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2010-09-27 14:02:58 -06:00
|
|
|
reg = omap4_ctrl_pad_readl(control_pbias_offset);
|
|
|
|
reg &= ~(OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
|
2011-10-03 06:22:50 -06:00
|
|
|
OMAP4_MMC1_PWRDNZ_MASK |
|
|
|
|
OMAP4_MMC1_PBIASLITE_VMODE_MASK);
|
2010-09-27 14:02:58 -06:00
|
|
|
omap4_ctrl_pad_writel(reg, control_pbias_offset);
|
2010-05-15 12:21:25 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot,
|
|
|
|
int power_on, int vdd)
|
|
|
|
{
|
|
|
|
u32 reg;
|
2011-06-01 05:15:22 -06:00
|
|
|
unsigned long timeout;
|
2010-05-15 12:21:25 -06:00
|
|
|
|
|
|
|
if (power_on) {
|
2010-09-27 14:02:58 -06:00
|
|
|
reg = omap4_ctrl_pad_readl(control_pbias_offset);
|
|
|
|
reg |= OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK;
|
2010-05-15 12:21:25 -06:00
|
|
|
if ((1 << vdd) <= MMC_VDD_165_195)
|
2010-09-27 14:02:58 -06:00
|
|
|
reg &= ~OMAP4_MMC1_PBIASLITE_VMODE_MASK;
|
2010-05-15 12:21:25 -06:00
|
|
|
else
|
2010-09-27 14:02:58 -06:00
|
|
|
reg |= OMAP4_MMC1_PBIASLITE_VMODE_MASK;
|
|
|
|
reg |= (OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
|
2011-09-30 12:05:55 -06:00
|
|
|
OMAP4_MMC1_PWRDNZ_MASK);
|
2010-09-27 14:02:58 -06:00
|
|
|
omap4_ctrl_pad_writel(reg, control_pbias_offset);
|
2011-06-01 05:15:22 -06:00
|
|
|
|
|
|
|
timeout = jiffies + msecs_to_jiffies(5);
|
|
|
|
do {
|
|
|
|
reg = omap4_ctrl_pad_readl(control_pbias_offset);
|
|
|
|
if (!(reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK))
|
|
|
|
break;
|
|
|
|
usleep_range(100, 200);
|
|
|
|
} while (!time_after(jiffies, timeout));
|
|
|
|
|
2010-09-27 14:02:58 -06:00
|
|
|
if (reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK) {
|
2010-05-15 12:21:25 -06:00
|
|
|
pr_err("Pbias Voltage is not same as LDO\n");
|
|
|
|
/* Caution : On VMODE_ERROR Power Down MMC IO */
|
2011-09-30 12:05:55 -06:00
|
|
|
reg &= ~(OMAP4_MMC1_PWRDNZ_MASK);
|
2010-09-27 14:02:58 -06:00
|
|
|
omap4_ctrl_pad_writel(reg, control_pbias_offset);
|
2010-05-15 12:21:25 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-11-29 02:37:48 -07:00
|
|
|
static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
|
|
|
|
{
|
|
|
|
u32 reg;
|
|
|
|
|
2012-01-12 07:26:45 -07:00
|
|
|
reg = omap_ctrl_readl(control_devconf1_offset);
|
|
|
|
if (mmc->slots[0].internal_clock)
|
2011-11-29 02:37:48 -07:00
|
|
|
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
|
2012-01-12 07:26:45 -07:00
|
|
|
else
|
|
|
|
reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
|
|
|
|
omap_ctrl_writel(reg, control_devconf1_offset);
|
2011-11-29 02:37:48 -07:00
|
|
|
}
|
|
|
|
|
2011-12-17 17:35:47 -07:00
|
|
|
static void hsmmc2_before_set_reg(struct device *dev, int slot,
|
2010-02-15 11:03:34 -07:00
|
|
|
int power_on, int vdd)
|
2008-12-10 18:37:17 -07:00
|
|
|
{
|
|
|
|
struct omap_mmc_platform_data *mmc = dev->platform_data;
|
2009-05-28 15:04:03 -06:00
|
|
|
|
2010-02-15 11:03:34 -07:00
|
|
|
if (mmc->slots[0].remux)
|
|
|
|
mmc->slots[0].remux(dev, slot, power_on);
|
|
|
|
|
2011-11-29 02:37:48 -07:00
|
|
|
if (power_on)
|
|
|
|
hsmmc2_select_input_clk_src(mmc);
|
|
|
|
}
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2011-11-29 02:37:48 -07:00
|
|
|
static int am35x_hsmmc2_set_power(struct device *dev, int slot,
|
|
|
|
int power_on, int vdd)
|
|
|
|
{
|
|
|
|
struct omap_mmc_platform_data *mmc = dev->platform_data;
|
|
|
|
|
|
|
|
if (power_on)
|
|
|
|
hsmmc2_select_input_clk_src(mmc);
|
|
|
|
|
|
|
|
return 0;
|
2009-09-22 17:44:50 -06:00
|
|
|
}
|
|
|
|
|
2010-05-13 06:39:31 -06:00
|
|
|
static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
|
|
|
|
int vdd)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-02-28 08:18:03 -07:00
|
|
|
static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
|
|
|
|
int controller_nr)
|
|
|
|
{
|
2011-11-17 14:39:40 -07:00
|
|
|
if (gpio_is_valid(mmc_controller->slots[0].switch_pin) &&
|
|
|
|
(mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
|
2011-02-28 08:18:03 -07:00
|
|
|
omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
2011-11-17 14:39:40 -07:00
|
|
|
if (gpio_is_valid(mmc_controller->slots[0].gpio_wp) &&
|
|
|
|
(mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
|
2011-02-28 08:18:03 -07:00
|
|
|
omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
if (cpu_is_omap34xx()) {
|
|
|
|
if (controller_nr == 0) {
|
|
|
|
omap_mux_init_signal("sdmmc1_clk",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc1_cmd",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc1_dat0",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
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",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc1_dat3",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
}
|
|
|
|
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",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc1_dat6",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc1_dat7",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (controller_nr == 1) {
|
|
|
|
/* MMC2 */
|
|
|
|
omap_mux_init_signal("sdmmc2_clk",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc2_cmd",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc2_dat0",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For 8 wire configurations, Lines DAT4, 5, 6 and 7
|
|
|
|
* need to be muxed in the board-*.c files
|
|
|
|
*/
|
|
|
|
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",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc2_dat3",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
}
|
|
|
|
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",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc2_dat6.sdmmc2_dat6",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc2_dat7.sdmmc2_dat7",
|
|
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For MMC3 the pins need to be muxed in the board-*.c files
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-02-20 10:43:30 -07:00
|
|
|
static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
|
|
|
|
struct omap_mmc_platform_data *mmc)
|
2011-02-28 08:18:04 -07:00
|
|
|
{
|
|
|
|
char *hc_name;
|
|
|
|
|
|
|
|
hc_name = kzalloc(sizeof(char) * (HSMMC_NAME_LEN + 1), GFP_KERNEL);
|
|
|
|
if (!hc_name) {
|
|
|
|
pr_err("Cannot allocate memory for controller slot name\n");
|
|
|
|
kfree(hc_name);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (c->name)
|
|
|
|
strncpy(hc_name, c->name, HSMMC_NAME_LEN);
|
|
|
|
else
|
|
|
|
snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
|
|
|
|
c->mmc, 1);
|
|
|
|
mmc->slots[0].name = hc_name;
|
|
|
|
mmc->nr_slots = 1;
|
|
|
|
mmc->slots[0].caps = c->caps;
|
2011-11-22 07:02:18 -07:00
|
|
|
mmc->slots[0].pm_caps = c->pm_caps;
|
2011-02-28 08:18:04 -07:00
|
|
|
mmc->slots[0].internal_clock = !c->ext_clock;
|
2012-02-19 05:20:33 -07:00
|
|
|
mmc->max_freq = c->max_freq;
|
2011-02-28 08:18:04 -07:00
|
|
|
if (cpu_is_omap44xx())
|
|
|
|
mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
|
|
|
|
else
|
|
|
|
mmc->reg_offset = 0;
|
|
|
|
|
|
|
|
mmc->get_context_loss_count = hsmmc_get_context_loss;
|
|
|
|
|
|
|
|
mmc->slots[0].switch_pin = c->gpio_cd;
|
|
|
|
mmc->slots[0].gpio_wp = c->gpio_wp;
|
|
|
|
|
|
|
|
mmc->slots[0].remux = c->remux;
|
|
|
|
mmc->slots[0].init_card = c->init_card;
|
|
|
|
|
|
|
|
if (c->cover_only)
|
|
|
|
mmc->slots[0].cover = 1;
|
|
|
|
|
|
|
|
if (c->nonremovable)
|
|
|
|
mmc->slots[0].nonremovable = 1;
|
|
|
|
|
|
|
|
if (c->power_saving)
|
|
|
|
mmc->slots[0].power_saving = 1;
|
|
|
|
|
|
|
|
if (c->no_off)
|
|
|
|
mmc->slots[0].no_off = 1;
|
|
|
|
|
2011-05-30 08:25:34 -06:00
|
|
|
if (c->no_off_init)
|
|
|
|
mmc->slots[0].no_regulator_off_init = c->no_off_init;
|
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
if (c->vcc_aux_disable_is_sleep)
|
|
|
|
mmc->slots[0].vcc_aux_disable_is_sleep = 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
|
|
|
|
*/
|
2012-04-30 17:37:10 -06:00
|
|
|
if (soc_is_am35xx())
|
2011-12-09 13:27:36 -07:00
|
|
|
mmc->slots[0].ocr_mask = MMC_VDD_165_195 |
|
|
|
|
MMC_VDD_26_27 |
|
|
|
|
MMC_VDD_27_28 |
|
|
|
|
MMC_VDD_29_30 |
|
|
|
|
MMC_VDD_30_31 |
|
|
|
|
MMC_VDD_31_32;
|
|
|
|
else
|
|
|
|
mmc->slots[0].ocr_mask = c->ocr_mask;
|
2011-02-28 08:18:04 -07:00
|
|
|
|
2012-04-30 17:37:10 -06:00
|
|
|
if (!soc_is_am35xx())
|
2011-02-28 08:18:04 -07:00
|
|
|
mmc->slots[0].features |= HSMMC_HAS_PBIAS;
|
|
|
|
|
|
|
|
if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0))
|
|
|
|
mmc->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
|
|
|
|
|
|
|
|
switch (c->mmc) {
|
|
|
|
case 1:
|
|
|
|
if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
|
|
|
|
/* on-chip level shifting via PBIAS0/PBIAS1 */
|
|
|
|
if (cpu_is_omap44xx()) {
|
|
|
|
mmc->slots[0].before_set_reg =
|
|
|
|
omap4_hsmmc1_before_set_reg;
|
|
|
|
mmc->slots[0].after_set_reg =
|
|
|
|
omap4_hsmmc1_after_set_reg;
|
|
|
|
} else {
|
|
|
|
mmc->slots[0].before_set_reg =
|
|
|
|
omap_hsmmc1_before_set_reg;
|
|
|
|
mmc->slots[0].after_set_reg =
|
|
|
|
omap_hsmmc1_after_set_reg;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-30 17:37:10 -06:00
|
|
|
if (soc_is_am35xx())
|
2011-11-29 02:37:48 -07:00
|
|
|
mmc->slots[0].set_power = nop_mmc_set_power;
|
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
/* OMAP3630 HSMMC1 supports only 4-bit */
|
|
|
|
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:
|
2012-04-30 17:37:10 -06:00
|
|
|
if (soc_is_am35xx())
|
2011-11-29 02:37:48 -07:00
|
|
|
mmc->slots[0].set_power = am35x_hsmmc2_set_power;
|
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
if (c->ext_clock)
|
|
|
|
c->transceiver = 1;
|
|
|
|
if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
|
|
|
|
c->caps &= ~MMC_CAP_8_BIT_DATA;
|
|
|
|
c->caps |= MMC_CAP_4_BIT_DATA;
|
|
|
|
}
|
|
|
|
if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
|
|
|
|
/* off-chip level shifting, or none */
|
2011-12-17 17:35:47 -07:00
|
|
|
mmc->slots[0].before_set_reg = hsmmc2_before_set_reg;
|
2011-02-28 08:18:04 -07:00
|
|
|
mmc->slots[0].after_set_reg = NULL;
|
|
|
|
}
|
|
|
|
break;
|
2011-12-17 17:35:47 -07:00
|
|
|
case 3:
|
2011-02-28 08:18:04 -07:00
|
|
|
case 4:
|
|
|
|
case 5:
|
|
|
|
mmc->slots[0].before_set_reg = NULL;
|
|
|
|
mmc->slots[0].after_set_reg = NULL;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
pr_err("MMC%d configuration not supported!\n", c->mmc);
|
|
|
|
kfree(hc_name);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-02-20 10:43:28 -07:00
|
|
|
static int omap_hsmmc_done;
|
2012-02-20 10:43:29 -07:00
|
|
|
|
|
|
|
void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
|
|
|
|
{
|
|
|
|
struct platform_device *pdev;
|
|
|
|
struct omap_mmc_platform_data *mmc_pdata;
|
|
|
|
int res;
|
|
|
|
|
|
|
|
if (omap_hsmmc_done != 1)
|
|
|
|
return;
|
|
|
|
|
|
|
|
omap_hsmmc_done++;
|
|
|
|
|
|
|
|
for (; c->mmc; c++) {
|
|
|
|
if (!c->deferred)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
pdev = c->pdev;
|
|
|
|
if (!pdev)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
mmc_pdata = pdev->dev.platform_data;
|
|
|
|
if (!mmc_pdata)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
mmc_pdata->slots[0].switch_pin = c->gpio_cd;
|
|
|
|
mmc_pdata->slots[0].gpio_wp = c->gpio_wp;
|
|
|
|
|
|
|
|
res = omap_device_register(pdev);
|
|
|
|
if (res)
|
|
|
|
pr_err("Could not late init MMC %s\n",
|
|
|
|
c->name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
#define MAX_OMAP_MMC_HWMOD_NAME_LEN 16
|
|
|
|
|
2012-03-07 19:54:24 -07:00
|
|
|
static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
|
2012-02-20 10:43:29 -07:00
|
|
|
int ctrl_nr)
|
2011-02-28 08:18:04 -07:00
|
|
|
{
|
|
|
|
struct omap_hwmod *oh;
|
2012-02-20 10:43:29 -07:00
|
|
|
struct omap_hwmod *ohs[1];
|
|
|
|
struct omap_device *od;
|
2011-07-21 14:48:45 -06:00
|
|
|
struct platform_device *pdev;
|
2011-02-28 08:18:04 -07:00
|
|
|
char oh_name[MAX_OMAP_MMC_HWMOD_NAME_LEN];
|
|
|
|
struct omap_mmc_platform_data *mmc_data;
|
|
|
|
struct omap_mmc_dev_attr *mmc_dev_attr;
|
|
|
|
char *name;
|
2012-02-20 10:43:29 -07:00
|
|
|
int res;
|
2011-02-28 08:18:04 -07:00
|
|
|
|
|
|
|
mmc_data = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL);
|
|
|
|
if (!mmc_data) {
|
|
|
|
pr_err("Cannot allocate memory for mmc device!\n");
|
2012-02-20 10:43:29 -07:00
|
|
|
return;
|
2011-02-28 08:18:04 -07:00
|
|
|
}
|
|
|
|
|
2012-02-20 10:43:29 -07:00
|
|
|
res = omap_hsmmc_pdata_init(hsmmcinfo, mmc_data);
|
|
|
|
if (res < 0)
|
|
|
|
goto free_mmc;
|
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
omap_hsmmc_mux(mmc_data, (ctrl_nr - 1));
|
|
|
|
|
2011-02-28 08:18:05 -07:00
|
|
|
name = "omap_hsmmc";
|
2012-02-20 10:43:29 -07:00
|
|
|
res = snprintf(oh_name, MAX_OMAP_MMC_HWMOD_NAME_LEN,
|
2011-02-28 08:18:04 -07:00
|
|
|
"mmc%d", ctrl_nr);
|
2012-02-20 10:43:29 -07:00
|
|
|
WARN(res >= MAX_OMAP_MMC_HWMOD_NAME_LEN,
|
2011-02-28 08:18:04 -07:00
|
|
|
"String buffer overflow in MMC%d device setup\n", ctrl_nr);
|
2012-02-20 10:43:29 -07:00
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
oh = omap_hwmod_lookup(oh_name);
|
|
|
|
if (!oh) {
|
|
|
|
pr_err("Could not look up %s\n", oh_name);
|
2012-02-20 10:43:29 -07:00
|
|
|
goto free_name;
|
2011-02-28 08:18:04 -07:00
|
|
|
}
|
2012-02-20 10:43:29 -07:00
|
|
|
ohs[0] = oh;
|
2011-02-28 08:18:04 -07:00
|
|
|
if (oh->dev_attr != NULL) {
|
|
|
|
mmc_dev_attr = oh->dev_attr;
|
|
|
|
mmc_data->controller_flags = mmc_dev_attr->flags;
|
2012-03-16 06:49:54 -06:00
|
|
|
/*
|
|
|
|
* erratum 2.1.1.128 doesn't apply if board has
|
|
|
|
* a transceiver is attached
|
|
|
|
*/
|
|
|
|
if (hsmmcinfo->transceiver)
|
|
|
|
mmc_data->controller_flags &=
|
|
|
|
~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
|
2011-02-28 08:18:04 -07:00
|
|
|
}
|
|
|
|
|
2012-02-20 10:43:29 -07:00
|
|
|
pdev = platform_device_alloc(name, ctrl_nr - 1);
|
|
|
|
if (!pdev) {
|
|
|
|
pr_err("Could not allocate pdev for %s\n", name);
|
|
|
|
goto free_name;
|
2011-02-28 08:18:04 -07:00
|
|
|
}
|
2012-02-20 10:43:29 -07:00
|
|
|
dev_set_name(&pdev->dev, "%s.%d", pdev->name, pdev->id);
|
|
|
|
|
|
|
|
od = omap_device_alloc(pdev, ohs, 1, NULL, 0);
|
2012-09-21 00:30:50 -06:00
|
|
|
if (IS_ERR(od)) {
|
2012-02-20 10:43:29 -07:00
|
|
|
pr_err("Could not allocate od for %s\n", name);
|
|
|
|
goto put_pdev;
|
|
|
|
}
|
|
|
|
|
|
|
|
res = platform_device_add_data(pdev, mmc_data,
|
|
|
|
sizeof(struct omap_mmc_platform_data));
|
|
|
|
if (res) {
|
|
|
|
pr_err("Could not add pdata for %s\n", name);
|
|
|
|
goto put_pdev;
|
|
|
|
}
|
|
|
|
|
|
|
|
hsmmcinfo->pdev = pdev;
|
|
|
|
|
|
|
|
if (hsmmcinfo->deferred)
|
|
|
|
goto free_mmc;
|
|
|
|
|
|
|
|
res = omap_device_register(pdev);
|
|
|
|
if (res) {
|
|
|
|
pr_err("Could not register od for %s\n", name);
|
|
|
|
goto free_od;
|
|
|
|
}
|
|
|
|
|
|
|
|
goto free_mmc;
|
|
|
|
|
|
|
|
free_od:
|
|
|
|
omap_device_delete(od);
|
|
|
|
|
|
|
|
put_pdev:
|
|
|
|
platform_device_put(pdev);
|
|
|
|
|
|
|
|
free_name:
|
|
|
|
kfree(mmc_data->slots[0].name);
|
2011-02-28 08:18:04 -07:00
|
|
|
|
2012-02-20 10:43:29 -07:00
|
|
|
free_mmc:
|
2011-02-28 08:18:04 -07:00
|
|
|
kfree(mmc_data);
|
|
|
|
}
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2012-02-20 10:43:30 -07:00
|
|
|
void __init omap_hsmmc_init(struct omap2_hsmmc_info *controllers)
|
2008-12-10 18:37:17 -07:00
|
|
|
{
|
2010-05-15 12:21:25 -06:00
|
|
|
u32 reg;
|
2008-12-10 18:37:17 -07:00
|
|
|
|
2012-02-20 10:43:28 -07:00
|
|
|
if (omap_hsmmc_done)
|
|
|
|
return;
|
|
|
|
|
|
|
|
omap_hsmmc_done = 1;
|
|
|
|
|
2010-05-15 12:21:25 -06:00
|
|
|
if (!cpu_is_omap44xx()) {
|
|
|
|
if (cpu_is_omap2430()) {
|
|
|
|
control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE;
|
|
|
|
control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1;
|
|
|
|
} else {
|
|
|
|
control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
|
|
|
|
control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1;
|
|
|
|
}
|
2008-12-10 18:37:17 -07:00
|
|
|
} else {
|
2010-09-27 14:02:58 -06:00
|
|
|
control_pbias_offset =
|
|
|
|
OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_PBIASLITE;
|
|
|
|
control_mmc1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MMC1;
|
|
|
|
reg = omap4_ctrl_pad_readl(control_mmc1);
|
|
|
|
reg |= (OMAP4_SDMMC1_PUSTRENGTH_GRP0_MASK |
|
|
|
|
OMAP4_SDMMC1_PUSTRENGTH_GRP1_MASK);
|
|
|
|
reg &= ~(OMAP4_SDMMC1_PUSTRENGTH_GRP2_MASK |
|
|
|
|
OMAP4_SDMMC1_PUSTRENGTH_GRP3_MASK);
|
2011-10-03 06:22:51 -06:00
|
|
|
reg |= (OMAP4_SDMMC1_DR0_SPEEDCTRL_MASK |
|
2010-09-27 14:02:58 -06:00
|
|
|
OMAP4_SDMMC1_DR1_SPEEDCTRL_MASK |
|
|
|
|
OMAP4_SDMMC1_DR2_SPEEDCTRL_MASK);
|
|
|
|
omap4_ctrl_pad_writel(reg, control_mmc1);
|
2008-12-10 18:37:17 -07:00
|
|
|
}
|
|
|
|
|
2011-02-28 08:18:04 -07:00
|
|
|
for (; controllers->mmc; controllers++)
|
2012-02-20 10:43:29 -07:00
|
|
|
omap_hsmmc_init_one(controllers, controllers->mmc);
|
2009-03-23 19:23:47 -06:00
|
|
|
|
2008-12-10 18:37:17 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|