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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)
59
60static iomux_v3_cfg_t mx51efikasb_pads[] = {
61 /* USB HOST2 */
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,
74
75 /* leds */
76 MX51_PAD_EIM_CS0__GPIO2_25,
77 MX51_PAD_GPIO1_3__GPIO1_3,
78
79 /* pcb id */
80 MX51_PAD_EIM_CS3__GPIO2_28,
81 MX51_PAD_EIM_CS4__GPIO2_29,
82
83 /* lid */
84 MX51_PAD_CSI1_VSYNC__GPIO3_14,
85
86 /* power key*/
87 MX51_PAD_PWRKEY,
88
89 /* wifi/bt button */
90 MX51_PAD_DI1_PIN12__GPIO3_1,
91
92 /* power off */
93 MX51_PAD_CSI2_VSYNC__GPIO4_13,
94
95 /* wdog reset */
96 MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
97
98 /* BT */
99 MX51_PAD_EIM_A17__GPIO2_11,
100};
101
102static int initialize_usbh2_port(struct platform_device *pdev)
103{
104 iomux_v3_cfg_t usbh2stp = MX51_PAD_EIM_A26__USBH2_STP;
105 iomux_v3_cfg_t usbh2gpio = MX51_PAD_EIM_A26__GPIO2_20;
106
107 mxc_iomux_v3_setup_pad(usbh2gpio);
108 gpio_request(EFIKASB_USBH2_STP, "usbh2_stp");
109 gpio_direction_output(EFIKASB_USBH2_STP, 0);
110 msleep(1);
111 gpio_set_value(EFIKASB_USBH2_STP, 1);
112 msleep(1);
113
114 gpio_free(EFIKASB_USBH2_STP);
115 mxc_iomux_v3_setup_pad(usbh2stp);
116
117 mdelay(10);
118
119 return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
120}
121
122static struct mxc_usbh_platform_data usbh2_config = {
123 .init = initialize_usbh2_port,
124 .portsc = MXC_EHCI_MODE_ULPI,
125};
126
127static void __init mx51_efikasb_usb(void)
128{
Sascha Hauer48f6b092011-03-02 09:27:42 +0100129 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);
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100133}
134
135static struct gpio_led mx51_efikasb_leds[] = {
136 {
137 .name = "efikasb:green",
138 .default_trigger = "default-on",
139 .gpio = EFIKASB_GREEN_LED,
140 .active_low = 1,
141 },
142 {
143 .name = "efikasb:white",
144 .default_trigger = "caps",
145 .gpio = EFIKASB_WHITE_LED,
146 },
147};
148
149static struct gpio_led_platform_data mx51_efikasb_leds_data = {
150 .leds = mx51_efikasb_leds,
151 .num_leds = ARRAY_SIZE(mx51_efikasb_leds),
152};
153
154static struct platform_device mx51_efikasb_leds_device = {
155 .name = "leds-gpio",
156 .id = -1,
157 .dev = {
158 .platform_data = &mx51_efikasb_leds_data,
159 },
160};
161
162static struct gpio_keys_button mx51_efikasb_keys[] = {
163 {
164 .code = KEY_POWER,
165 .gpio = EFIKASB_PWRKEY,
166 .type = EV_PWR,
167 .desc = "Power Button",
168 .wakeup = 1,
169 .debounce_interval = 10, /* ms */
170 },
171 {
172 .code = SW_LID,
173 .gpio = EFIKASB_LID,
174 .type = EV_SW,
175 .desc = "Lid Switch",
176 },
177 {
178 /* SW_RFKILLALL vs KEY_RFKILL ? */
179 .code = SW_RFKILL_ALL,
180 .gpio = EFIKASB_RFKILL,
181 .type = EV_SW,
182 .desc = "rfkill",
183 },
184};
185
186static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
187 .buttons = mx51_efikasb_keys,
188 .nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
189};
190
191static struct regulator *pwgt1, *pwgt2;
192
193static void mx51_efikasb_power_off(void)
194{
195 gpio_set_value(EFIKA_USB_PHY_RESET, 0);
196
197 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
198 regulator_disable(pwgt2);
199 regulator_disable(pwgt1);
200 }
201 gpio_direction_output(EFIKASB_POWEROFF, 1);
202}
203
204static int __init mx51_efikasb_power_init(void)
205{
206 if (machine_is_mx51_efikasb()) {
207 pwgt1 = regulator_get(NULL, "pwgt1");
208 pwgt2 = regulator_get(NULL, "pwgt2");
209 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
210 regulator_enable(pwgt1);
211 regulator_enable(pwgt2);
212 }
213 gpio_request(EFIKASB_POWEROFF, "poweroff");
214 pm_power_off = mx51_efikasb_power_off;
215
216 regulator_has_full_constraints();
217 }
218
219 return 0;
220}
221late_initcall(mx51_efikasb_power_init);
222
223/* 01 R1.3 board
224 10 R2.0 board */
225static void __init mx51_efikasb_board_id(void)
226{
227 int id;
228
229 gpio_request(EFIKASB_PCBID0, "pcb id0");
230 gpio_direction_input(EFIKASB_PCBID0);
231 gpio_request(EFIKASB_PCBID1, "pcb id1");
232 gpio_direction_input(EFIKASB_PCBID1);
233
234 id = gpio_get_value(EFIKASB_PCBID0);
235 id |= gpio_get_value(EFIKASB_PCBID1) << 1;
236
237 switch (id) {
238 default:
239 break;
240 case 1:
241 system_rev = 0x13;
242 break;
243 case 2:
244 system_rev = 0x20;
245 break;
246 }
247}
248
249static void __init efikasb_board_init(void)
250{
Shawn Guob78d8e52011-06-06 00:07:55 +0800251 imx51_soc_init();
252
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100253 mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
254 ARRAY_SIZE(mx51efikasb_pads));
255 efika_board_common_init();
256
257 mx51_efikasb_board_id();
258 mx51_efikasb_usb();
259 imx51_add_sdhci_esdhc_imx(1, NULL);
260
261 platform_device_register(&mx51_efikasb_leds_device);
Fabio Estevamba8a6c042011-04-06 13:05:26 -0300262 imx_add_gpio_keys(&mx51_efikasb_keys_data);
Arnaud Patard (Rtp)102c91d2011-02-17 15:31:32 +0100263
264}
265
266static void __init mx51_efikasb_timer_init(void)
267{
268 mx51_clocks_init(32768, 24000000, 22579200, 24576000);
269}
270
271static struct sys_timer mx51_efikasb_timer = {
272 .init = mx51_efikasb_timer_init,
273};
274
275MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
276 .boot_params = MX51_PHYS_OFFSET + 0x100,
277 .map_io = mx51_map_io,
278 .init_early = imx51_init_early,
279 .init_irq = mx51_init_irq,
280 .init_machine = efikasb_board_init,
281 .timer = &mx51_efikasb_timer,
282MACHINE_END