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linux/arch/arm/mach-omap2/board-omap4panda.c
Menon, Nishanth bf56f0a666 omap4: pandaboard: fix up mmc card detect logic 
For MMC1 Controller, card detect interrupt source is
twl6030 which is non-gpio. The card detect call back function provides
card present/absent status by reading MMC Control register present
on twl6030. This functionality was introduced in mfd tree on
track to kernel.org

Sync pandaboard to the same and make mmc work.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>

Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:30:32 +02:00

399 lines
9.4 KiB
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/*
* Board support file for OMAP4430 based PandaBoard.
*
* Copyright (C) 2010 Texas Instruments
*
* Author: David Anders <x0132446@ti.com>
*
* Based on mach-omap2/board-4430sdp.c
*
* Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
*
* Based on mach-omap2/board-3430sdp.c
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/usb/otg.h>
#include <linux/i2c/twl.h>
#include <linux/regulator/machine.h>
#include <mach/hardware.h>
#include <mach/omap4-common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/usb.h>
#include <plat/mmc.h>
#include "timer-gp.h"
#include "hsmmc.h"
#include "control.h"
#define GPIO_HUB_POWER 1
#define GPIO_HUB_NRESET 62
static struct gpio_led gpio_leds[] = {
{
.name = "pandaboard::status1",
.default_trigger = "heartbeat",
.gpio = 7,
},
{
.name = "pandaboard::status2",
.default_trigger = "mmc0",
.gpio = 8,
},
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device leds_gpio = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_led_info,
},
};
static struct platform_device *panda_devices[] __initdata = {
&leds_gpio,
};
static void __init omap4_panda_init_irq(void)
{
omap2_init_common_hw(NULL, NULL);
gic_init_irq();
omap_gpio_init();
}
static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.phy_reset = false,
.reset_gpio_port[0] = -EINVAL,
.reset_gpio_port[1] = -EINVAL,
.reset_gpio_port[2] = -EINVAL
};
static void __init omap4_ehci_init(void)
{
int ret;
/* disable the power to the usb hub prior to init */
ret = gpio_request(GPIO_HUB_POWER, "hub_power");
if (ret) {
pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
goto error1;
}
gpio_export(GPIO_HUB_POWER, 0);
gpio_direction_output(GPIO_HUB_POWER, 0);
gpio_set_value(GPIO_HUB_POWER, 0);
/* reset phy+hub */
ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
if (ret) {
pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
goto error2;
}
gpio_export(GPIO_HUB_NRESET, 0);
gpio_direction_output(GPIO_HUB_NRESET, 0);
gpio_set_value(GPIO_HUB_NRESET, 0);
gpio_set_value(GPIO_HUB_NRESET, 1);
usb_ehci_init(&ehci_pdata);
/* enable power to hub */
gpio_set_value(GPIO_HUB_POWER, 1);
return;
error2:
gpio_free(GPIO_HUB_POWER);
error1:
pr_err("Unable to initialize EHCI power/reset\n");
return;
}
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_UTMI,
.mode = MUSB_PERIPHERAL,
.power = 100,
};
static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};
static struct regulator_consumer_supply omap4_panda_vmmc_supply[] = {
{
.supply = "vmmc",
.dev_name = "mmci-omap-hs.0",
},
};
static int omap4_twl6030_hsmmc_late_init(struct device *dev)
{
int ret = 0;
struct platform_device *pdev = container_of(dev,
struct platform_device, dev);
struct omap_mmc_platform_data *pdata = dev->platform_data;
if (!pdata) {
dev_err(dev, "%s: NULL platform data\n", __func__);
return -EINVAL;
}
/* Setting MMC1 Card detect Irq */
if (pdev->id == 0) {
ret = twl6030_mmc_card_detect_config();
if (ret)
dev_err(dev, "%s: Error card detect config(%d)\n",
__func__, ret);
else
pdata->slots[0].card_detect = twl6030_mmc_card_detect;
}
return ret;
}
static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
{
struct omap_mmc_platform_data *pdata;
/* dev can be null if CONFIG_MMC_OMAP_HS is not set */
if (!dev) {
pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
return;
}
pdata = dev->platform_data;
pdata->init = omap4_twl6030_hsmmc_late_init;
}
static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
{
struct omap2_hsmmc_info *c;
omap2_hsmmc_init(controllers);
for (c = controllers; c->mmc; c++)
omap4_twl6030_hsmmc_set_late_init(c->dev);
return 0;
}
static struct regulator_init_data omap4_panda_vaux1 = {
.constraints = {
.min_uV = 1000000,
.max_uV = 3000000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vaux2 = {
.constraints = {
.min_uV = 1200000,
.max_uV = 2800000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vaux3 = {
.constraints = {
.min_uV = 1000000,
.max_uV = 3000000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
/* VMMC1 for MMC1 card */
static struct regulator_init_data omap4_panda_vmmc = {
.constraints = {
.min_uV = 1200000,
.max_uV = 3000000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = omap4_panda_vmmc_supply,
};
static struct regulator_init_data omap4_panda_vpp = {
.constraints = {
.min_uV = 1800000,
.max_uV = 2500000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vusim = {
.constraints = {
.min_uV = 1200000,
.max_uV = 2900000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vana = {
.constraints = {
.min_uV = 2100000,
.max_uV = 2100000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vcxio = {
.constraints = {
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vdac = {
.constraints = {
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct regulator_init_data omap4_panda_vusb = {
.constraints = {
.min_uV = 3300000,
.max_uV = 3300000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
};
static struct twl4030_platform_data omap4_panda_twldata = {
.irq_base = TWL6030_IRQ_BASE,
.irq_end = TWL6030_IRQ_END,
/* Regulators */
.vmmc = &omap4_panda_vmmc,
.vpp = &omap4_panda_vpp,
.vusim = &omap4_panda_vusim,
.vana = &omap4_panda_vana,
.vcxio = &omap4_panda_vcxio,
.vdac = &omap4_panda_vdac,
.vusb = &omap4_panda_vusb,
.vaux1 = &omap4_panda_vaux1,
.vaux2 = &omap4_panda_vaux2,
.vaux3 = &omap4_panda_vaux3,
};
static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = {
{
I2C_BOARD_INFO("twl6030", 0x48),
.flags = I2C_CLIENT_WAKE,
.irq = OMAP44XX_IRQ_SYS_1N,
.platform_data = &omap4_panda_twldata,
},
};
static int __init omap4_panda_i2c_init(void)
{
/*
* Phoenix Audio IC needs I2C1 to
* start with 400 KHz or less
*/
omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo,
ARRAY_SIZE(omap4_panda_i2c_boardinfo));
omap_register_i2c_bus(2, 400, NULL, 0);
omap_register_i2c_bus(3, 400, NULL, 0);
omap_register_i2c_bus(4, 400, NULL, 0);
return 0;
}
static void __init omap4_panda_init(void)
{
omap4_panda_i2c_init();
platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
omap_serial_init();
omap4_twl6030_hsmmc_init(mmc);
/* OMAP4 Panda uses internal transceiver so register nop transceiver */
usb_nop_xceiv_register();
omap4_ehci_init();
/* FIXME: allow multi-omap to boot until musb is updated for omap4 */
if (!cpu_is_omap44xx())
usb_musb_init(&musb_board_data);
}
static void __init omap4_panda_map_io(void)
{
omap2_set_globals_443x();
omap44xx_map_common_io();
}
MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
/* Maintainer: David Anders - Texas Instruments Inc */
.boot_params = 0x80000100,
.map_io = omap4_panda_map_io,
.init_irq = omap4_panda_init_irq,
.init_machine = omap4_panda_init,
.timer = &omap_timer,
MACHINE_END
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