281 lines
6.5 KiB
C
281 lines
6.5 KiB
C
/*
|
|
* 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/irq.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 "devices.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)
|
|
|
|
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,
|
|
};
|
|
|
|
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 = {
|
|
.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)
|
|
mxc_register_device(&mxc_usbh2_device, &usbh2_config);
|
|
}
|
|
|
|
static struct gpio_led mx51_efikasb_leds[] = {
|
|
{
|
|
.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 struct gpio_led_platform_data mx51_efikasb_leds_data = {
|
|
.leds = mx51_efikasb_leds,
|
|
.num_leds = ARRAY_SIZE(mx51_efikasb_leds),
|
|
};
|
|
|
|
static struct platform_device mx51_efikasb_leds_device = {
|
|
.name = "leds-gpio",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &mx51_efikasb_leds_data,
|
|
},
|
|
};
|
|
|
|
static struct gpio_keys_button mx51_efikasb_keys[] = {
|
|
{
|
|
.code = KEY_POWER,
|
|
.gpio = EFIKASB_PWRKEY,
|
|
.type = EV_PWR,
|
|
.desc = "Power Button",
|
|
.wakeup = 1,
|
|
.debounce_interval = 10, /* ms */
|
|
},
|
|
{
|
|
.code = SW_LID,
|
|
.gpio = EFIKASB_LID,
|
|
.type = EV_SW,
|
|
.desc = "Lid Switch",
|
|
},
|
|
{
|
|
/* SW_RFKILLALL vs KEY_RFKILL ? */
|
|
.code = SW_RFKILL_ALL,
|
|
.gpio = EFIKASB_RFKILL,
|
|
.type = EV_SW,
|
|
.desc = "rfkill",
|
|
},
|
|
};
|
|
|
|
static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
|
|
.buttons = mx51_efikasb_keys,
|
|
.nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
|
|
};
|
|
|
|
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);
|
|
id |= gpio_get_value(EFIKASB_PCBID1) << 1;
|
|
|
|
switch (id) {
|
|
default:
|
|
break;
|
|
case 1:
|
|
system_rev = 0x13;
|
|
break;
|
|
case 2:
|
|
system_rev = 0x20;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void __init efikasb_board_init(void)
|
|
{
|
|
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(1, NULL);
|
|
|
|
platform_device_register(&mx51_efikasb_leds_device);
|
|
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")
|
|
.boot_params = MX51_PHYS_OFFSET + 0x100,
|
|
.map_io = mx51_map_io,
|
|
.init_early = imx51_init_early,
|
|
.init_irq = mx51_init_irq,
|
|
.init_machine = efikasb_board_init,
|
|
.timer = &mx51_efikasb_timer,
|
|
MACHINE_END
|