blob: e1847ffe924337667cd79e8dfc73848ded5786c2 [file] [log] [blame]
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +01001/*
2 * Copyright (C) Arnaud Patard <arnaud.patard@rtp-net.org>
3 *
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.
8 *
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:
12 *
13 * http://www.opensource.org/licenses/gpl-license.html
14 * http://www.gnu.org/copyleft/gpl.html
15 */
16
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>
24#include <linux/io.h>
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +010025#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>
33
34#include <mach/common.h>
35#include <mach/hardware.h>
36#include <mach/iomux-mx51.h>
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +010037
38#include <asm/irq.h>
39#include <asm/setup.h>
40#include <asm/mach-types.h>
41#include <asm/mach/arch.h>
42#include <asm/mach/time.h>
43
44#include "devices-imx51.h"
45#include "devices.h"
46#include "efika.h"
47
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)
57
58#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
Arnaud Patard (Rtp)600ea5c2011-08-27 15:15:58 +020059#define MX51_PAD_SD1_CD IOMUX_PAD(0x47c, 0x0e8, 1, __NA_, 0, MX51_ESDHC_PAD_CTRL)
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +010060
61static iomux_v3_cfg_t mx51efikasb_pads[] = {
62 /* USB HOST2 */
63 MX51_PAD_EIM_D16__USBH2_DATA0,
64 MX51_PAD_EIM_D17__USBH2_DATA1,
65 MX51_PAD_EIM_D18__USBH2_DATA2,
66 MX51_PAD_EIM_D19__USBH2_DATA3,
67 MX51_PAD_EIM_D20__USBH2_DATA4,
68 MX51_PAD_EIM_D21__USBH2_DATA5,
69 MX51_PAD_EIM_D22__USBH2_DATA6,
70 MX51_PAD_EIM_D23__USBH2_DATA7,
71 MX51_PAD_EIM_A24__USBH2_CLK,
72 MX51_PAD_EIM_A25__USBH2_DIR,
73 MX51_PAD_EIM_A26__USBH2_STP,
74 MX51_PAD_EIM_A27__USBH2_NXT,
75
76 /* leds */
77 MX51_PAD_EIM_CS0__GPIO2_25,
78 MX51_PAD_GPIO1_3__GPIO1_3,
79
80 /* pcb id */
81 MX51_PAD_EIM_CS3__GPIO2_28,
82 MX51_PAD_EIM_CS4__GPIO2_29,
83
84 /* lid */
85 MX51_PAD_CSI1_VSYNC__GPIO3_14,
86
87 /* power key*/
88 MX51_PAD_PWRKEY,
89
90 /* wifi/bt button */
91 MX51_PAD_DI1_PIN12__GPIO3_1,
92
93 /* power off */
94 MX51_PAD_CSI2_VSYNC__GPIO4_13,
95
96 /* wdog reset */
97 MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
98
99 /* BT */
100 MX51_PAD_EIM_A17__GPIO2_11,
Arnaud Patard (Rtp)600ea5c2011-08-27 15:15:58 +0200101
102 MX51_PAD_SD1_CD,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100103};
104
105static int initialize_usbh2_port(struct platform_device *pdev)
106{
107 iomux_v3_cfg_t usbh2stp = MX51_PAD_EIM_A26__USBH2_STP;
108 iomux_v3_cfg_t usbh2gpio = MX51_PAD_EIM_A26__GPIO2_20;
109
110 mxc_iomux_v3_setup_pad(usbh2gpio);
111 gpio_request(EFIKASB_USBH2_STP, "usbh2_stp");
112 gpio_direction_output(EFIKASB_USBH2_STP, 0);
113 msleep(1);
114 gpio_set_value(EFIKASB_USBH2_STP, 1);
115 msleep(1);
116
117 gpio_free(EFIKASB_USBH2_STP);
118 mxc_iomux_v3_setup_pad(usbh2stp);
119
120 mdelay(10);
121
122 return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
123}
124
125static struct mxc_usbh_platform_data usbh2_config = {
126 .init = initialize_usbh2_port,
127 .portsc = MXC_EHCI_MODE_ULPI,
128};
129
130static void __init mx51_efikasb_usb(void)
131{
Sascha Hauer48f6b092011-03-02 09:27:42 +0100132 usbh2_config.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
133 ULPI_OTG_DRVVBUS_EXT | ULPI_OTG_EXTVBUSIND);
134 if (usbh2_config.otg)
135 mxc_register_device(&mxc_usbh2_device, &usbh2_config);
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100136}
137
Uwe Kleine-König5b8d6282011-05-28 21:05:02 +0200138static const struct gpio_led mx51_efikasb_leds[] __initconst = {
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100139 {
140 .name = "efikasb:green",
141 .default_trigger = "default-on",
142 .gpio = EFIKASB_GREEN_LED,
143 .active_low = 1,
144 },
145 {
146 .name = "efikasb:white",
147 .default_trigger = "caps",
148 .gpio = EFIKASB_WHITE_LED,
149 },
150};
151
Uwe Kleine-König5b8d6282011-05-28 21:05:02 +0200152static const struct gpio_led_platform_data
153 mx51_efikasb_leds_data __initconst = {
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100154 .leds = mx51_efikasb_leds,
155 .num_leds = ARRAY_SIZE(mx51_efikasb_leds),
156};
157
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100158static struct gpio_keys_button mx51_efikasb_keys[] = {
159 {
160 .code = KEY_POWER,
161 .gpio = EFIKASB_PWRKEY,
Arnaud Patard (Rtp)f7db3d5f2011-06-27 22:41:05 +0200162 .type = EV_KEY,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100163 .desc = "Power Button",
164 .wakeup = 1,
Arnaud Patard (Rtp)f7db3d5f2011-06-27 22:41:05 +0200165 .active_low = 1,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100166 },
167 {
168 .code = SW_LID,
169 .gpio = EFIKASB_LID,
170 .type = EV_SW,
171 .desc = "Lid Switch",
Arnaud Patard (Rtp)f7db3d5f2011-06-27 22:41:05 +0200172 .active_low = 1,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100173 },
174 {
Arnaud Patard (Rtp)f7db3d5f2011-06-27 22:41:05 +0200175 .code = KEY_RFKILL,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100176 .gpio = EFIKASB_RFKILL,
Arnaud Patard (Rtp)f7db3d5f2011-06-27 22:41:05 +0200177 .type = EV_KEY,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100178 .desc = "rfkill",
Arnaud Patard (Rtp)f7db3d5f2011-06-27 22:41:05 +0200179 .active_low = 1,
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100180 },
181};
182
183static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
184 .buttons = mx51_efikasb_keys,
185 .nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
186};
187
Arnaud Patard (Rtp)600ea5c2011-08-27 15:15:58 +0200188static struct esdhc_platform_data sd0_pdata = {
189#define EFIKASB_SD1_CD IMX_GPIO_NR(2, 27)
190 .cd_gpio = EFIKASB_SD1_CD,
191 .cd_type = ESDHC_CD_GPIO,
192 .wp_type = ESDHC_WP_CONTROLLER,
193};
194
195static struct esdhc_platform_data sd1_pdata = {
196 .cd_type = ESDHC_CD_CONTROLLER,
197 .wp_type = ESDHC_WP_CONTROLLER,
198};
199
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100200static struct regulator *pwgt1, *pwgt2;
201
202static void mx51_efikasb_power_off(void)
203{
204 gpio_set_value(EFIKA_USB_PHY_RESET, 0);
205
206 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
207 regulator_disable(pwgt2);
208 regulator_disable(pwgt1);
209 }
210 gpio_direction_output(EFIKASB_POWEROFF, 1);
211}
212
213static int __init mx51_efikasb_power_init(void)
214{
215 if (machine_is_mx51_efikasb()) {
216 pwgt1 = regulator_get(NULL, "pwgt1");
217 pwgt2 = regulator_get(NULL, "pwgt2");
218 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
219 regulator_enable(pwgt1);
220 regulator_enable(pwgt2);
221 }
222 gpio_request(EFIKASB_POWEROFF, "poweroff");
223 pm_power_off = mx51_efikasb_power_off;
224
225 regulator_has_full_constraints();
226 }
227
228 return 0;
229}
230late_initcall(mx51_efikasb_power_init);
231
232/* 01 R1.3 board
233 10 R2.0 board */
234static void __init mx51_efikasb_board_id(void)
235{
236 int id;
237
238 gpio_request(EFIKASB_PCBID0, "pcb id0");
239 gpio_direction_input(EFIKASB_PCBID0);
240 gpio_request(EFIKASB_PCBID1, "pcb id1");
241 gpio_direction_input(EFIKASB_PCBID1);
242
Arnaud Patard (Rtp)fbd60a72011-06-27 22:41:06 +0200243 id = gpio_get_value(EFIKASB_PCBID0) ? 1 : 0;
244 id |= (gpio_get_value(EFIKASB_PCBID1) ? 1 : 0) << 1;
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100245
246 switch (id) {
247 default:
248 break;
249 case 1:
250 system_rev = 0x13;
251 break;
252 case 2:
253 system_rev = 0x20;
254 break;
255 }
256}
257
258static void __init efikasb_board_init(void)
259{
Shawn Guob78d8e52011-06-06 00:07:55 +0800260 imx51_soc_init();
261
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100262 mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
263 ARRAY_SIZE(mx51efikasb_pads));
264 efika_board_common_init();
265
266 mx51_efikasb_board_id();
267 mx51_efikasb_usb();
Arnaud Patard (Rtp)600ea5c2011-08-27 15:15:58 +0200268 imx51_add_sdhci_esdhc_imx(0, &sd0_pdata);
269 imx51_add_sdhci_esdhc_imx(1, &sd1_pdata);
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100270
Uwe Kleine-König5b8d6282011-05-28 21:05:02 +0200271 gpio_led_register_device(-1, &mx51_efikasb_leds_data);
Fabio Estevamba8a6c02011-04-06 13:05:26 -0300272 imx_add_gpio_keys(&mx51_efikasb_keys_data);
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100273}
274
275static void __init mx51_efikasb_timer_init(void)
276{
277 mx51_clocks_init(32768, 24000000, 22579200, 24576000);
278}
279
280static struct sys_timer mx51_efikasb_timer = {
281 .init = mx51_efikasb_timer_init,
282};
283
284MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
285 .boot_params = MX51_PHYS_OFFSET + 0x100,
286 .map_io = mx51_map_io,
287 .init_early = imx51_init_early,
288 .init_irq = mx51_init_irq,
289 .init_machine = efikasb_board_init,
290 .timer = &mx51_efikasb_timer,
291MACHINE_END