aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-mx5/board-mx51_efikasb.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-mx5/board-mx51_efikasb.c')
-rw-r--r--arch/arm/mach-mx5/board-mx51_efikasb.c283
1 files changed, 283 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_efikasb.c b/arch/arm/mach-mx5/board-mx51_efikasb.c
new file mode 100644
index 00000000000..db04ce8462d
--- /dev/null
+++ b/arch/arm/mach-mx5/board-mx51_efikasb.c
@@ -0,0 +1,283 @@
1/*
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>
25#include <linux/fsl_devices.h>
26#include <linux/spi/flash.h>
27#include <linux/spi/spi.h>
28#include <linux/mfd/mc13892.h>
29#include <linux/regulator/machine.h>
30#include <linux/regulator/consumer.h>
31#include <linux/usb/otg.h>
32#include <linux/usb/ulpi.h>
33#include <mach/ulpi.h>
34
35#include <mach/common.h>
36#include <mach/hardware.h>
37#include <mach/iomux-mx51.h>
38#include <mach/i2c.h>
39#include <mach/mxc_ehci.h>
40
41#include <asm/irq.h>
42#include <asm/setup.h>
43#include <asm/mach-types.h>
44#include <asm/mach/arch.h>
45#include <asm/mach/time.h>
46
47#include "devices-imx51.h"
48#include "devices.h"
49#include "efika.h"
50
51#define EFIKASB_USBH2_STP IMX_GPIO_NR(2, 20)
52#define EFIKASB_GREEN_LED IMX_GPIO_NR(1, 3)
53#define EFIKASB_WHITE_LED IMX_GPIO_NR(2, 25)
54#define EFIKASB_PCBID0 IMX_GPIO_NR(2, 28)
55#define EFIKASB_PCBID1 IMX_GPIO_NR(2, 29)
56#define EFIKASB_PWRKEY IMX_GPIO_NR(2, 31)
57#define EFIKASB_LID IMX_GPIO_NR(3, 14)
58#define EFIKASB_POWEROFF IMX_GPIO_NR(4, 13)
59#define EFIKASB_RFKILL IMX_GPIO_NR(3, 1)
60
61#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
62
63static iomux_v3_cfg_t mx51efikasb_pads[] = {
64 /* USB HOST2 */
65 MX51_PAD_EIM_D16__USBH2_DATA0,
66 MX51_PAD_EIM_D17__USBH2_DATA1,
67 MX51_PAD_EIM_D18__USBH2_DATA2,
68 MX51_PAD_EIM_D19__USBH2_DATA3,
69 MX51_PAD_EIM_D20__USBH2_DATA4,
70 MX51_PAD_EIM_D21__USBH2_DATA5,
71 MX51_PAD_EIM_D22__USBH2_DATA6,
72 MX51_PAD_EIM_D23__USBH2_DATA7,
73 MX51_PAD_EIM_A24__USBH2_CLK,
74 MX51_PAD_EIM_A25__USBH2_DIR,
75 MX51_PAD_EIM_A26__USBH2_STP,
76 MX51_PAD_EIM_A27__USBH2_NXT,
77
78 /* leds */
79 MX51_PAD_EIM_CS0__GPIO2_25,
80 MX51_PAD_GPIO1_3__GPIO1_3,
81
82 /* pcb id */
83 MX51_PAD_EIM_CS3__GPIO2_28,
84 MX51_PAD_EIM_CS4__GPIO2_29,
85
86 /* lid */
87 MX51_PAD_CSI1_VSYNC__GPIO3_14,
88
89 /* power key*/
90 MX51_PAD_PWRKEY,
91
92 /* wifi/bt button */
93 MX51_PAD_DI1_PIN12__GPIO3_1,
94
95 /* power off */
96 MX51_PAD_CSI2_VSYNC__GPIO4_13,
97
98 /* wdog reset */
99 MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
100
101 /* BT */
102 MX51_PAD_EIM_A17__GPIO2_11,
103};
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{
132 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);
136}
137
138static struct gpio_led mx51_efikasb_leds[] = {
139 {
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
152static struct gpio_led_platform_data mx51_efikasb_leds_data = {
153 .leds = mx51_efikasb_leds,
154 .num_leds = ARRAY_SIZE(mx51_efikasb_leds),
155};
156
157static struct platform_device mx51_efikasb_leds_device = {
158 .name = "leds-gpio",
159 .id = -1,
160 .dev = {
161 .platform_data = &mx51_efikasb_leds_data,
162 },
163};
164
165static struct gpio_keys_button mx51_efikasb_keys[] = {
166 {
167 .code = KEY_POWER,
168 .gpio = EFIKASB_PWRKEY,
169 .type = EV_PWR,
170 .desc = "Power Button",
171 .wakeup = 1,
172 .debounce_interval = 10, /* ms */
173 },
174 {
175 .code = SW_LID,
176 .gpio = EFIKASB_LID,
177 .type = EV_SW,
178 .desc = "Lid Switch",
179 },
180 {
181 /* SW_RFKILLALL vs KEY_RFKILL ? */
182 .code = SW_RFKILL_ALL,
183 .gpio = EFIKASB_RFKILL,
184 .type = EV_SW,
185 .desc = "rfkill",
186 },
187};
188
189static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
190 .buttons = mx51_efikasb_keys,
191 .nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
192};
193
194static struct regulator *pwgt1, *pwgt2;
195
196static void mx51_efikasb_power_off(void)
197{
198 gpio_set_value(EFIKA_USB_PHY_RESET, 0);
199
200 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
201 regulator_disable(pwgt2);
202 regulator_disable(pwgt1);
203 }
204 gpio_direction_output(EFIKASB_POWEROFF, 1);
205}
206
207static int __init mx51_efikasb_power_init(void)
208{
209 if (machine_is_mx51_efikasb()) {
210 pwgt1 = regulator_get(NULL, "pwgt1");
211 pwgt2 = regulator_get(NULL, "pwgt2");
212 if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
213 regulator_enable(pwgt1);
214 regulator_enable(pwgt2);
215 }
216 gpio_request(EFIKASB_POWEROFF, "poweroff");
217 pm_power_off = mx51_efikasb_power_off;
218
219 regulator_has_full_constraints();
220 }
221
222 return 0;
223}
224late_initcall(mx51_efikasb_power_init);
225
226/* 01 R1.3 board
227 10 R2.0 board */
228static void __init mx51_efikasb_board_id(void)
229{
230 int id;
231
232 gpio_request(EFIKASB_PCBID0, "pcb id0");
233 gpio_direction_input(EFIKASB_PCBID0);
234 gpio_request(EFIKASB_PCBID1, "pcb id1");
235 gpio_direction_input(EFIKASB_PCBID1);
236
237 id = gpio_get_value(EFIKASB_PCBID0);
238 id |= gpio_get_value(EFIKASB_PCBID1) << 1;
239
240 switch (id) {
241 default:
242 break;
243 case 1:
244 system_rev = 0x13;
245 break;
246 case 2:
247 system_rev = 0x20;
248 break;
249 }
250}
251
252static void __init efikasb_board_init(void)
253{
254 mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
255 ARRAY_SIZE(mx51efikasb_pads));
256 efika_board_common_init();
257
258 mx51_efikasb_board_id();
259 mx51_efikasb_usb();
260 imx51_add_sdhci_esdhc_imx(1, NULL);
261
262 platform_device_register(&mx51_efikasb_leds_device);
263 imx51_add_gpio_keys(&mx51_efikasb_keys_data);
264
265}
266
267static void __init mx51_efikasb_timer_init(void)
268{
269 mx51_clocks_init(32768, 24000000, 22579200, 24576000);
270}
271
272static struct sys_timer mx51_efikasb_timer = {
273 .init = mx51_efikasb_timer_init,
274};
275
276MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
277 .boot_params = MX51_PHYS_OFFSET + 0x100,
278 .map_io = mx51_map_io,
279 .init_early = imx51_init_early,
280 .init_irq = mx51_init_irq,
281 .init_machine = efikasb_board_init,
282 .timer = &mx51_efikasb_timer,
283MACHINE_END