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/*
* Copyright (C) Arnaud Patard <arnaud.patard@rtp-net.org>
*
* based on code from the following
* Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
* Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/spi/flash.h>
#include <linux/spi/spi.h>
#include <linux/mfd/mc13892.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/consumer.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <mach/ulpi.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx51.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "devices-imx51.h"
#include "efika.h"
#define EFIKASB_USBH2_STP IMX_GPIO_NR(2, 20)
#define EFIKASB_GREEN_LED IMX_GPIO_NR(1, 3)
#define EFIKASB_WHITE_LED IMX_GPIO_NR(2, 25)
#define EFIKASB_PCBID0 IMX_GPIO_NR(2, 28)
#define EFIKASB_PCBID1 IMX_GPIO_NR(2, 29)
#define EFIKASB_PWRKEY IMX_GPIO_NR(2, 31)
#define EFIKASB_LID IMX_GPIO_NR(3, 14)
#define EFIKASB_POWEROFF IMX_GPIO_NR(4, 13)
#define EFIKASB_RFKILL IMX_GPIO_NR(3, 1)
#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
#define MX51_PAD_SD1_CD IOMUX_PAD(0x47c, 0x0e8, 1, __NA_, 0, MX51_ESDHC_PAD_CTRL)
static iomux_v3_cfg_t mx51efikasb_pads[] = {
/* USB HOST2 */
MX51_PAD_EIM_D16__USBH2_DATA0,
MX51_PAD_EIM_D17__USBH2_DATA1,
MX51_PAD_EIM_D18__USBH2_DATA2,
MX51_PAD_EIM_D19__USBH2_DATA3,
MX51_PAD_EIM_D20__USBH2_DATA4,
MX51_PAD_EIM_D21__USBH2_DATA5,
MX51_PAD_EIM_D22__USBH2_DATA6,
MX51_PAD_EIM_D23__USBH2_DATA7,
MX51_PAD_EIM_A24__USBH2_CLK,
MX51_PAD_EIM_A25__USBH2_DIR,
MX51_PAD_EIM_A26__USBH2_STP,
MX51_PAD_EIM_A27__USBH2_NXT,
/* leds */
MX51_PAD_EIM_CS0__GPIO2_25,
MX51_PAD_GPIO1_3__GPIO1_3,
/* pcb id */
MX51_PAD_EIM_CS3__GPIO2_28,
MX51_PAD_EIM_CS4__GPIO2_29,
/* lid */
MX51_PAD_CSI1_VSYNC__GPIO3_14,
/* power key*/
MX51_PAD_PWRKEY,
/* wifi/bt button */
MX51_PAD_DI1_PIN12__GPIO3_1,
/* power off */
MX51_PAD_CSI2_VSYNC__GPIO4_13,
/* wdog reset */
MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
/* BT */
MX51_PAD_EIM_A17__GPIO2_11,
MX51_PAD_SD1_CD,
};
static int initialize_usbh2_port(struct platform_device *pdev)
{
iomux_v3_cfg_t usbh2stp = MX51_PAD_EIM_A26__USBH2_STP;
iomux_v3_cfg_t usbh2gpio = MX51_PAD_EIM_A26__GPIO2_20;
mxc_iomux_v3_setup_pad(usbh2gpio);
gpio_request(EFIKASB_USBH2_STP, "usbh2_stp");
gpio_direction_output(EFIKASB_USBH2_STP, 0);
msleep(1);
gpio_set_value(EFIKASB_USBH2_STP, 1);
msleep(1);
gpio_free(EFIKASB_USBH2_STP);
mxc_iomux_v3_setup_pad(usbh2stp);
mdelay(10);
return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
}
static struct mxc_usbh_platform_data usbh2_config __initdata = {
.init = initialize_usbh2_port,
.portsc = MXC_EHCI_MODE_ULPI,
};
static void __init mx51_efikasb_usb(void)
{
usbh2_config.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT | ULPI_OTG_EXTVBUSIND);
if (usbh2_config.otg)
imx51_add_mxc_ehci_hs(2, &usbh2_config);
}
static const struct gpio_led mx51_efikasb_leds[] __initconst = {
{
.name = "efikasb:green",
.default_trigger = "default-on",
.gpio = EFIKASB_GREEN_LED,
.active_low = 1,
},
{
.name = "efikasb:white",
.default_trigger = "caps",
.gpio = EFIKASB_WHITE_LED,
},
};
static const struct gpio_led_platform_data
mx51_efikasb_leds_data __initconst = {
.leds = mx51_efikasb_leds,
.num_leds = ARRAY_SIZE(mx51_efikasb_leds),
};
static struct gpio_keys_button mx51_efikasb_keys[] = {
{
.code = KEY_POWER,
.gpio = EFIKASB_PWRKEY,
.type = EV_KEY,
.desc = "Power Button",
.wakeup = 1,
.active_low = 1,
},
{
.code = SW_LID,
.gpio = EFIKASB_LID,
.type = EV_SW,
.desc = "Lid Switch",
.active_low = 1,
},
{
.code = KEY_RFKILL,
.gpio = EFIKASB_RFKILL,
.type = EV_KEY,
.desc = "rfkill",
.active_low = 1,
},
};
static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
.buttons = mx51_efikasb_keys,
.nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
};
static struct esdhc_platform_data sd0_pdata = {
#define EFIKASB_SD1_CD IMX_GPIO_NR(2, 27)
.cd_gpio = EFIKASB_SD1_CD,
.cd_type = ESDHC_CD_GPIO,
.wp_type = ESDHC_WP_CONTROLLER,
};
static struct esdhc_platform_data sd1_pdata = {
.cd_type = ESDHC_CD_CONTROLLER,
.wp_type = ESDHC_WP_CONTROLLER,
};
static struct regulator *pwgt1, *pwgt2;
static void mx51_efikasb_power_off(void)
{
gpio_set_value(EFIKA_USB_PHY_RESET, 0);
if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
regulator_disable(pwgt2);
regulator_disable(pwgt1);
}
gpio_direction_output(EFIKASB_POWEROFF, 1);
}
static int __init mx51_efikasb_power_init(void)
{
if (machine_is_mx51_efikasb()) {
pwgt1 = regulator_get(NULL, "pwgt1");
pwgt2 = regulator_get(NULL, "pwgt2");
if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
regulator_enable(pwgt1);
regulator_enable(pwgt2);
}
gpio_request(EFIKASB_POWEROFF, "poweroff");
pm_power_off = mx51_efikasb_power_off;
regulator_has_full_constraints();
}
return 0;
}
late_initcall(mx51_efikasb_power_init);
/* 01 R1.3 board
10 R2.0 board */
static void __init mx51_efikasb_board_id(void)
{
int id;
gpio_request(EFIKASB_PCBID0, "pcb id0");
gpio_direction_input(EFIKASB_PCBID0);
gpio_request(EFIKASB_PCBID1, "pcb id1");
gpio_direction_input(EFIKASB_PCBID1);
id = gpio_get_value(EFIKASB_PCBID0) ? 1 : 0;
id |= (gpio_get_value(EFIKASB_PCBID1) ? 1 : 0) << 1;
switch (id) {
default:
break;
case 1:
system_rev = 0x13;
break;
case 2:
system_rev = 0x20;
break;
}
}
static void __init efikasb_board_init(void)
{
imx51_soc_init();
mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
ARRAY_SIZE(mx51efikasb_pads));
efika_board_common_init();
mx51_efikasb_board_id();
mx51_efikasb_usb();
imx51_add_sdhci_esdhc_imx(0, &sd0_pdata);
imx51_add_sdhci_esdhc_imx(1, &sd1_pdata);
gpio_led_register_device(-1, &mx51_efikasb_leds_data);
imx_add_gpio_keys(&mx51_efikasb_keys_data);
}
static void __init mx51_efikasb_timer_init(void)
{
mx51_clocks_init(32768, 24000000, 22579200, 24576000);
}
static struct sys_timer mx51_efikasb_timer = {
.init = mx51_efikasb_timer_init,
};
MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
.atag_offset = 0x100,
.map_io = mx51_map_io,
.init_early = imx51_init_early,
.init_irq = mx51_init_irq,
.handle_irq = imx51_handle_irq,
.init_machine = efikasb_board_init,
.timer = &mx51_efikasb_timer,
.restart = mxc_restart,
MACHINE_END
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