| /* |
| * 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_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 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) |
| { |
| 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 |