/*
* 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
