diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-mx51_efikasb.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-mx51_efikasb.c | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx51_efikasb.c b/arch/arm/mach-imx/mach-mx51_efikasb.c new file mode 100644 index 000000000000..ea5f65b0381a --- /dev/null +++ b/arch/arm/mach-imx/mach-mx51_efikasb.c @@ -0,0 +1,291 @@ +/* + * 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 |