2 * Copyright (C) Arnaud Patard <arnaud.patard@rtp-net.org>
4 * based on code from the following
5 * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
6 * Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
7 * Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
9 * The code contained herein is licensed under the GNU General Public
10 * License. You may obtain a copy of the GNU General Public License
11 * Version 2 or later at the following locations:
13 * http://www.opensource.org/licenses/gpl-license.html
14 * http://www.gnu.org/copyleft/gpl.html
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/i2c.h>
20 #include <linux/gpio.h>
21 #include <linux/leds.h>
22 #include <linux/input.h>
23 #include <linux/delay.h>
25 #include <linux/spi/flash.h>
26 #include <linux/spi/spi.h>
27 #include <linux/mfd/mc13892.h>
28 #include <linux/regulator/machine.h>
29 #include <linux/regulator/consumer.h>
30 #include <linux/usb/otg.h>
31 #include <linux/usb/ulpi.h>
32 #include <mach/ulpi.h>
34 #include <mach/common.h>
35 #include <mach/hardware.h>
36 #include <mach/iomux-mx51.h>
39 #include <asm/setup.h>
40 #include <asm/mach-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/time.h>
44 #include "devices-imx51.h"
48 #define EFIKASB_USBH2_STP IMX_GPIO_NR(2, 20)
49 #define EFIKASB_GREEN_LED IMX_GPIO_NR(1, 3)
50 #define EFIKASB_WHITE_LED IMX_GPIO_NR(2, 25)
51 #define EFIKASB_PCBID0 IMX_GPIO_NR(2, 28)
52 #define EFIKASB_PCBID1 IMX_GPIO_NR(2, 29)
53 #define EFIKASB_PWRKEY IMX_GPIO_NR(2, 31)
54 #define EFIKASB_LID IMX_GPIO_NR(3, 14)
55 #define EFIKASB_POWEROFF IMX_GPIO_NR(4, 13)
56 #define EFIKASB_RFKILL IMX_GPIO_NR(3, 1)
58 #define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
60 static iomux_v3_cfg_t mx51efikasb_pads[] = {
62 MX51_PAD_EIM_D16__USBH2_DATA0,
63 MX51_PAD_EIM_D17__USBH2_DATA1,
64 MX51_PAD_EIM_D18__USBH2_DATA2,
65 MX51_PAD_EIM_D19__USBH2_DATA3,
66 MX51_PAD_EIM_D20__USBH2_DATA4,
67 MX51_PAD_EIM_D21__USBH2_DATA5,
68 MX51_PAD_EIM_D22__USBH2_DATA6,
69 MX51_PAD_EIM_D23__USBH2_DATA7,
70 MX51_PAD_EIM_A24__USBH2_CLK,
71 MX51_PAD_EIM_A25__USBH2_DIR,
72 MX51_PAD_EIM_A26__USBH2_STP,
73 MX51_PAD_EIM_A27__USBH2_NXT,
76 MX51_PAD_EIM_CS0__GPIO2_25,
77 MX51_PAD_GPIO1_3__GPIO1_3,
80 MX51_PAD_EIM_CS3__GPIO2_28,
81 MX51_PAD_EIM_CS4__GPIO2_29,
84 MX51_PAD_CSI1_VSYNC__GPIO3_14,
90 MX51_PAD_DI1_PIN12__GPIO3_1,
93 MX51_PAD_CSI2_VSYNC__GPIO4_13,
96 MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
99 MX51_PAD_EIM_A17__GPIO2_11,
102 static int initialize_usbh2_port(struct platform_device *pdev)
104 iomux_v3_cfg_t usbh2stp = MX51_PAD_EIM_A26__USBH2_STP;
105 iomux_v3_cfg_t usbh2gpio = MX51_PAD_EIM_A26__GPIO2_20;
107 mxc_iomux_v3_setup_pad(usbh2gpio);
108 gpio_request(EFIKASB_USBH2_STP, "usbh2_stp");
109 gpio_direction_output(EFIKASB_USBH2_STP, 0);
111 gpio_set_value(EFIKASB_USBH2_STP, 1);
114 gpio_free(EFIKASB_USBH2_STP);
115 mxc_iomux_v3_setup_pad(usbh2stp);
119 return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
122 static struct mxc_usbh_platform_data usbh2_config = {
123 .init = initialize_usbh2_port,
124 .portsc = MXC_EHCI_MODE_ULPI,
127 static void __init mx51_efikasb_usb(void)
129 usbh2_config.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
130 ULPI_OTG_DRVVBUS_EXT | ULPI_OTG_EXTVBUSIND);
131 if (usbh2_config.otg)
132 mxc_register_device(&mxc_usbh2_device, &usbh2_config);
135 static const struct gpio_led mx51_efikasb_leds[] __initconst = {
137 .name = "efikasb:green",
138 .default_trigger = "default-on",
139 .gpio = EFIKASB_GREEN_LED,
143 .name = "efikasb:white",
144 .default_trigger = "caps",
145 .gpio = EFIKASB_WHITE_LED,
149 static const struct gpio_led_platform_data
150 mx51_efikasb_leds_data __initconst = {
151 .leds = mx51_efikasb_leds,
152 .num_leds = ARRAY_SIZE(mx51_efikasb_leds),
155 static struct gpio_keys_button mx51_efikasb_keys[] = {
158 .gpio = EFIKASB_PWRKEY,
160 .desc = "Power Button",
162 .debounce_interval = 10, /* ms */
168 .desc = "Lid Switch",
171 /* SW_RFKILLALL vs KEY_RFKILL ? */
172 .code = SW_RFKILL_ALL,
173 .gpio = EFIKASB_RFKILL,
179 static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
180 .buttons = mx51_efikasb_keys,
181 .nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
184 static struct regulator *pwgt1, *pwgt2;
186 static void mx51_efikasb_power_off(void)
188 gpio_set_value(EFIKA_USB_PHY_RESET, 0);
190 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
191 regulator_disable(pwgt2);
192 regulator_disable(pwgt1);
194 gpio_direction_output(EFIKASB_POWEROFF, 1);
197 static int __init mx51_efikasb_power_init(void)
199 if (machine_is_mx51_efikasb()) {
200 pwgt1 = regulator_get(NULL, "pwgt1");
201 pwgt2 = regulator_get(NULL, "pwgt2");
202 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
203 regulator_enable(pwgt1);
204 regulator_enable(pwgt2);
206 gpio_request(EFIKASB_POWEROFF, "poweroff");
207 pm_power_off = mx51_efikasb_power_off;
209 regulator_has_full_constraints();
214 late_initcall(mx51_efikasb_power_init);
218 static void __init mx51_efikasb_board_id(void)
222 gpio_request(EFIKASB_PCBID0, "pcb id0");
223 gpio_direction_input(EFIKASB_PCBID0);
224 gpio_request(EFIKASB_PCBID1, "pcb id1");
225 gpio_direction_input(EFIKASB_PCBID1);
227 id = gpio_get_value(EFIKASB_PCBID0);
228 id |= gpio_get_value(EFIKASB_PCBID1) << 1;
242 static void __init efikasb_board_init(void)
246 mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
247 ARRAY_SIZE(mx51efikasb_pads));
248 efika_board_common_init();
250 mx51_efikasb_board_id();
252 imx51_add_sdhci_esdhc_imx(1, NULL);
254 gpio_led_register_device(-1, &mx51_efikasb_leds_data);
255 imx_add_gpio_keys(&mx51_efikasb_keys_data);
258 static void __init mx51_efikasb_timer_init(void)
260 mx51_clocks_init(32768, 24000000, 22579200, 24576000);
263 static struct sys_timer mx51_efikasb_timer = {
264 .init = mx51_efikasb_timer_init,
267 MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
268 .boot_params = MX51_PHYS_OFFSET + 0x100,
269 .map_io = mx51_map_io,
270 .init_early = imx51_init_early,
271 .init_irq = mx51_init_irq,
272 .init_machine = efikasb_board_init,
273 .timer = &mx51_efikasb_timer,