omap3: beagle: Fix USB host port power control
[deliverable/linux.git] / arch / arm / mach-omap2 / board-omap3beagle.c
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1/*
2 * linux/arch/arm/mach-omap2/board-omap3beagle.c
3 *
4 * Copyright (C) 2008 Texas Instruments
5 *
6 * Modified from mach-omap2/board-3430sdp.c
7 *
8 * Initial code: Syed Mohammed Khasim
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/platform_device.h>
18#include <linux/delay.h>
19#include <linux/err.h>
20#include <linux/clk.h>
21#include <linux/io.h>
22#include <linux/leds.h>
23#include <linux/gpio.h>
24#include <linux/input.h>
25#include <linux/gpio_keys.h>
26
27#include <linux/mtd/mtd.h>
28#include <linux/mtd/partitions.h>
29#include <linux/mtd/nand.h>
30
bb3b9d8e 31#include <linux/regulator/machine.h>
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32#include <linux/i2c/twl4030.h>
33
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34#include <mach/hardware.h>
35#include <asm/mach-types.h>
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
38#include <asm/mach/flash.h>
39
40#include <mach/board.h>
41#include <mach/common.h>
42#include <mach/gpmc.h>
43#include <mach/nand.h>
90c62bf0 44#include <mach/mux.h>
18cb7aca 45#include <mach/usb.h>
f248076c 46#include <mach/timer-gp.h>
2885f000 47
90c62bf0 48#include "mmc-twl4030.h"
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49
50#define GPMC_CS0_BASE 0x60
51#define GPMC_CS_SIZE 0x30
52
53#define NAND_BLOCK_SIZE SZ_128K
54
55static struct mtd_partition omap3beagle_nand_partitions[] = {
56 /* All the partition sizes are listed in terms of NAND block size */
57 {
58 .name = "X-Loader",
59 .offset = 0,
60 .size = 4 * NAND_BLOCK_SIZE,
61 .mask_flags = MTD_WRITEABLE, /* force read-only */
62 },
63 {
64 .name = "U-Boot",
65 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
66 .size = 15 * NAND_BLOCK_SIZE,
67 .mask_flags = MTD_WRITEABLE, /* force read-only */
68 },
69 {
70 .name = "U-Boot Env",
71 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
72 .size = 1 * NAND_BLOCK_SIZE,
73 },
74 {
75 .name = "Kernel",
76 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
77 .size = 32 * NAND_BLOCK_SIZE,
78 },
79 {
80 .name = "File System",
81 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
82 .size = MTDPART_SIZ_FULL,
83 },
84};
85
86static struct omap_nand_platform_data omap3beagle_nand_data = {
87 .options = NAND_BUSWIDTH_16,
88 .parts = omap3beagle_nand_partitions,
89 .nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions),
90 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
91 .nand_setup = NULL,
92 .dev_ready = NULL,
93};
94
95static struct resource omap3beagle_nand_resource = {
96 .flags = IORESOURCE_MEM,
97};
98
99static struct platform_device omap3beagle_nand_device = {
100 .name = "omap2-nand",
101 .id = -1,
102 .dev = {
103 .platform_data = &omap3beagle_nand_data,
104 },
105 .num_resources = 1,
106 .resource = &omap3beagle_nand_resource,
107};
108
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109#include "sdram-micron-mt46h32m32lf-6.h"
110
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111static struct twl4030_hsmmc_info mmc[] = {
112 {
113 .mmc = 1,
114 .wires = 8,
115 .gpio_wp = 29,
116 },
117 {} /* Terminator */
118};
119
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120static struct platform_device omap3_beagle_lcd_device = {
121 .name = "omap3beagle_lcd",
122 .id = -1,
123};
124
125static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
126 .ctrl_name = "internal",
127};
128
129static struct regulator_consumer_supply beagle_vmmc1_supply = {
130 .supply = "vmmc",
131};
132
133static struct regulator_consumer_supply beagle_vsim_supply = {
134 .supply = "vmmc_aux",
135};
136
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137static struct gpio_led gpio_leds[];
138
139static int beagle_twl_gpio_setup(struct device *dev,
140 unsigned gpio, unsigned ngpio)
141{
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142 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
143 omap_cfg_reg(AG9_34XX_GPIO23);
144 mmc[0].gpio_wp = 23;
145 } else {
146 omap_cfg_reg(AH8_34XX_GPIO29);
147 }
90c62bf0 148 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
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149 mmc[0].gpio_cd = gpio + 0;
150 twl4030_mmc_init(mmc);
90c62bf0 151
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152 /* link regulators to MMC adapters */
153 beagle_vmmc1_supply.dev = mmc[0].dev;
154 beagle_vsim_supply.dev = mmc[0].dev;
155
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156 /* REVISIT: need ehci-omap hooks for external VBUS
157 * power switch and overcurrent detect
158 */
159
160 gpio_request(gpio + 1, "EHCI_nOC");
161 gpio_direction_input(gpio + 1);
162
163 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
164 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
e9840dc0 165 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
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166
167 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
168 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
169
170 return 0;
171}
172
173static struct twl4030_gpio_platform_data beagle_gpio_data = {
174 .gpio_base = OMAP_MAX_GPIO_LINES,
175 .irq_base = TWL4030_GPIO_IRQ_BASE,
176 .irq_end = TWL4030_GPIO_IRQ_END,
177 .use_leds = true,
178 .pullups = BIT(1),
179 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
180 | BIT(15) | BIT(16) | BIT(17),
181 .setup = beagle_twl_gpio_setup,
182};
183
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184static struct regulator_consumer_supply beagle_vdac_supply = {
185 .supply = "vdac",
186 .dev = &omap3_beagle_lcd_device.dev,
187};
188
189static struct regulator_consumer_supply beagle_vdvi_supply = {
190 .supply = "vdvi",
191 .dev = &omap3_beagle_lcd_device.dev,
192};
193
194/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
195static struct regulator_init_data beagle_vmmc1 = {
196 .constraints = {
197 .min_uV = 1850000,
198 .max_uV = 3150000,
199 .valid_modes_mask = REGULATOR_MODE_NORMAL
200 | REGULATOR_MODE_STANDBY,
201 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
202 | REGULATOR_CHANGE_MODE
203 | REGULATOR_CHANGE_STATUS,
204 },
205 .num_consumer_supplies = 1,
206 .consumer_supplies = &beagle_vmmc1_supply,
207};
208
209/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
210static struct regulator_init_data beagle_vsim = {
211 .constraints = {
212 .min_uV = 1800000,
213 .max_uV = 3000000,
214 .valid_modes_mask = REGULATOR_MODE_NORMAL
215 | REGULATOR_MODE_STANDBY,
216 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
217 | REGULATOR_CHANGE_MODE
218 | REGULATOR_CHANGE_STATUS,
219 },
220 .num_consumer_supplies = 1,
221 .consumer_supplies = &beagle_vsim_supply,
222};
223
224/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
225static struct regulator_init_data beagle_vdac = {
226 .constraints = {
227 .min_uV = 1800000,
228 .max_uV = 1800000,
229 .valid_modes_mask = REGULATOR_MODE_NORMAL
230 | REGULATOR_MODE_STANDBY,
231 .valid_ops_mask = REGULATOR_CHANGE_MODE
232 | REGULATOR_CHANGE_STATUS,
233 },
234 .num_consumer_supplies = 1,
235 .consumer_supplies = &beagle_vdac_supply,
236};
237
238/* VPLL2 for digital video outputs */
239static struct regulator_init_data beagle_vpll2 = {
240 .constraints = {
241 .name = "VDVI",
242 .min_uV = 1800000,
243 .max_uV = 1800000,
244 .valid_modes_mask = REGULATOR_MODE_NORMAL
245 | REGULATOR_MODE_STANDBY,
246 .valid_ops_mask = REGULATOR_CHANGE_MODE
247 | REGULATOR_CHANGE_STATUS,
248 },
249 .num_consumer_supplies = 1,
250 .consumer_supplies = &beagle_vdvi_supply,
251};
252
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253static struct twl4030_usb_data beagle_usb_data = {
254 .usb_mode = T2_USB_MODE_ULPI,
255};
256
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257static struct twl4030_platform_data beagle_twldata = {
258 .irq_base = TWL4030_IRQ_BASE,
259 .irq_end = TWL4030_IRQ_END,
260
261 /* platform_data for children goes here */
bd04e465 262 .usb = &beagle_usb_data,
90c62bf0 263 .gpio = &beagle_gpio_data,
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264 .vmmc1 = &beagle_vmmc1,
265 .vsim = &beagle_vsim,
266 .vdac = &beagle_vdac,
267 .vpll2 = &beagle_vpll2,
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268};
269
270static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
271 {
272 I2C_BOARD_INFO("twl4030", 0x48),
273 .flags = I2C_CLIENT_WAKE,
274 .irq = INT_34XX_SYS_NIRQ,
275 .platform_data = &beagle_twldata,
276 },
277};
278
279static int __init omap3_beagle_i2c_init(void)
280{
281 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
282 ARRAY_SIZE(beagle_i2c_boardinfo));
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283 /* Bus 3 is attached to the DVI port where devices like the pico DLP
284 * projector don't work reliably with 400kHz */
285 omap_register_i2c_bus(3, 100, NULL, 0);
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286 return 0;
287}
288
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289static struct gpio_led gpio_leds[] = {
290 {
291 .name = "beagleboard::usr0",
292 .default_trigger = "heartbeat",
293 .gpio = 150,
294 },
295 {
296 .name = "beagleboard::usr1",
297 .default_trigger = "mmc0",
298 .gpio = 149,
299 },
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300 {
301 .name = "beagleboard::pmu_stat",
302 .gpio = -EINVAL, /* gets replaced */
303 .active_low = true,
304 },
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305};
306
307static struct gpio_led_platform_data gpio_led_info = {
308 .leds = gpio_leds,
309 .num_leds = ARRAY_SIZE(gpio_leds),
310};
311
312static struct platform_device leds_gpio = {
313 .name = "leds-gpio",
314 .id = -1,
315 .dev = {
316 .platform_data = &gpio_led_info,
317 },
318};
319
320static struct gpio_keys_button gpio_buttons[] = {
321 {
322 .code = BTN_EXTRA,
323 .gpio = 7,
324 .desc = "user",
325 .wakeup = 1,
326 },
327};
328
329static struct gpio_keys_platform_data gpio_key_info = {
330 .buttons = gpio_buttons,
331 .nbuttons = ARRAY_SIZE(gpio_buttons),
332};
333
334static struct platform_device keys_gpio = {
335 .name = "gpio-keys",
336 .id = -1,
337 .dev = {
338 .platform_data = &gpio_key_info,
339 },
340};
341
342static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
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343 { OMAP_TAG_LCD, &omap3_beagle_lcd_config },
344};
345
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346static void __init omap3_beagle_init_irq(void)
347{
348 omap_board_config = omap3_beagle_config;
349 omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
350 omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
351 mt46h32m32lf6_sdrc_params);
352 omap_init_irq();
353#ifdef CONFIG_OMAP_32K_TIMER
354 omap2_gp_clockevent_set_gptimer(12);
355#endif
356 omap_gpio_init();
357}
358
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359static struct platform_device *omap3_beagle_devices[] __initdata = {
360 &omap3_beagle_lcd_device,
361 &leds_gpio,
362 &keys_gpio,
363};
364
365static void __init omap3beagle_flash_init(void)
366{
367 u8 cs = 0;
368 u8 nandcs = GPMC_CS_NUM + 1;
369
370 u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
371
372 /* find out the chip-select on which NAND exists */
373 while (cs < GPMC_CS_NUM) {
374 u32 ret = 0;
375 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
376
377 if ((ret & 0xC00) == 0x800) {
378 printk(KERN_INFO "Found NAND on CS%d\n", cs);
379 if (nandcs > GPMC_CS_NUM)
380 nandcs = cs;
381 }
382 cs++;
383 }
384
385 if (nandcs > GPMC_CS_NUM) {
386 printk(KERN_INFO "NAND: Unable to find configuration "
387 "in GPMC\n ");
388 return;
389 }
390
391 if (nandcs < GPMC_CS_NUM) {
392 omap3beagle_nand_data.cs = nandcs;
393 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
394 (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
395 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
396
397 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
398 if (platform_device_register(&omap3beagle_nand_device) < 0)
399 printk(KERN_ERR "Unable to register NAND device\n");
400 }
401}
402
403static void __init omap3_beagle_init(void)
404{
90c62bf0 405 omap3_beagle_i2c_init();
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406 platform_add_devices(omap3_beagle_devices,
407 ARRAY_SIZE(omap3_beagle_devices));
2885f000 408 omap_serial_init();
90c62bf0 409
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410 omap_cfg_reg(J25_34XX_GPIO170);
411 gpio_request(170, "DVI_nPD");
412 /* REVISIT leave DVI powered down until it's needed ... */
413 gpio_direction_output(170, true);
414
18cb7aca 415 usb_musb_init();
2885f000 416 omap3beagle_flash_init();
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417
418 /* Ensure SDRC pins are mux'd for self-refresh */
419 omap_cfg_reg(H16_34XX_SDRC_CKE0);
420 omap_cfg_reg(H17_34XX_SDRC_CKE1);
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421}
422
423static void __init omap3_beagle_map_io(void)
424{
425 omap2_set_globals_343x();
426 omap2_map_common_io();
427}
428
429MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
430 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
431 .phys_io = 0x48000000,
432 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
433 .boot_params = 0x80000100,
434 .map_io = omap3_beagle_map_io,
435 .init_irq = omap3_beagle_init_irq,
436 .init_machine = omap3_beagle_init,
437 .timer = &omap_timer,
438MACHINE_END
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