Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[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 omap_uart_config omap3_beagle_uart_config __initdata = {
112 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
113};
114
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115static struct twl4030_hsmmc_info mmc[] = {
116 {
117 .mmc = 1,
118 .wires = 8,
119 .gpio_wp = 29,
120 },
121 {} /* Terminator */
122};
123
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124static struct platform_device omap3_beagle_lcd_device = {
125 .name = "omap3beagle_lcd",
126 .id = -1,
127};
128
129static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
130 .ctrl_name = "internal",
131};
132
133static struct regulator_consumer_supply beagle_vmmc1_supply = {
134 .supply = "vmmc",
135};
136
137static struct regulator_consumer_supply beagle_vsim_supply = {
138 .supply = "vmmc_aux",
139};
140
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141static struct gpio_led gpio_leds[];
142
143static int beagle_twl_gpio_setup(struct device *dev,
144 unsigned gpio, unsigned ngpio)
145{
146 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
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147 omap_cfg_reg(AH8_34XX_GPIO29);
148 mmc[0].gpio_cd = gpio + 0;
149 twl4030_mmc_init(mmc);
90c62bf0 150
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151 /* link regulators to MMC adapters */
152 beagle_vmmc1_supply.dev = mmc[0].dev;
153 beagle_vsim_supply.dev = mmc[0].dev;
154
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155 /* REVISIT: need ehci-omap hooks for external VBUS
156 * power switch and overcurrent detect
157 */
158
159 gpio_request(gpio + 1, "EHCI_nOC");
160 gpio_direction_input(gpio + 1);
161
162 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
163 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
164 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
165
166 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
167 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
168
169 return 0;
170}
171
172static struct twl4030_gpio_platform_data beagle_gpio_data = {
173 .gpio_base = OMAP_MAX_GPIO_LINES,
174 .irq_base = TWL4030_GPIO_IRQ_BASE,
175 .irq_end = TWL4030_GPIO_IRQ_END,
176 .use_leds = true,
177 .pullups = BIT(1),
178 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
179 | BIT(15) | BIT(16) | BIT(17),
180 .setup = beagle_twl_gpio_setup,
181};
182
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183static struct regulator_consumer_supply beagle_vdac_supply = {
184 .supply = "vdac",
185 .dev = &omap3_beagle_lcd_device.dev,
186};
187
188static struct regulator_consumer_supply beagle_vdvi_supply = {
189 .supply = "vdvi",
190 .dev = &omap3_beagle_lcd_device.dev,
191};
192
193/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
194static struct regulator_init_data beagle_vmmc1 = {
195 .constraints = {
196 .min_uV = 1850000,
197 .max_uV = 3150000,
198 .valid_modes_mask = REGULATOR_MODE_NORMAL
199 | REGULATOR_MODE_STANDBY,
200 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
201 | REGULATOR_CHANGE_MODE
202 | REGULATOR_CHANGE_STATUS,
203 },
204 .num_consumer_supplies = 1,
205 .consumer_supplies = &beagle_vmmc1_supply,
206};
207
208/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
209static struct regulator_init_data beagle_vsim = {
210 .constraints = {
211 .min_uV = 1800000,
212 .max_uV = 3000000,
213 .valid_modes_mask = REGULATOR_MODE_NORMAL
214 | REGULATOR_MODE_STANDBY,
215 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
216 | REGULATOR_CHANGE_MODE
217 | REGULATOR_CHANGE_STATUS,
218 },
219 .num_consumer_supplies = 1,
220 .consumer_supplies = &beagle_vsim_supply,
221};
222
223/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
224static struct regulator_init_data beagle_vdac = {
225 .constraints = {
226 .min_uV = 1800000,
227 .max_uV = 1800000,
228 .valid_modes_mask = REGULATOR_MODE_NORMAL
229 | REGULATOR_MODE_STANDBY,
230 .valid_ops_mask = REGULATOR_CHANGE_MODE
231 | REGULATOR_CHANGE_STATUS,
232 },
233 .num_consumer_supplies = 1,
234 .consumer_supplies = &beagle_vdac_supply,
235};
236
237/* VPLL2 for digital video outputs */
238static struct regulator_init_data beagle_vpll2 = {
239 .constraints = {
240 .name = "VDVI",
241 .min_uV = 1800000,
242 .max_uV = 1800000,
243 .valid_modes_mask = REGULATOR_MODE_NORMAL
244 | REGULATOR_MODE_STANDBY,
245 .valid_ops_mask = REGULATOR_CHANGE_MODE
246 | REGULATOR_CHANGE_STATUS,
247 },
248 .num_consumer_supplies = 1,
249 .consumer_supplies = &beagle_vdvi_supply,
250};
251
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252static struct twl4030_platform_data beagle_twldata = {
253 .irq_base = TWL4030_IRQ_BASE,
254 .irq_end = TWL4030_IRQ_END,
255
256 /* platform_data for children goes here */
257 .gpio = &beagle_gpio_data,
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258 .vmmc1 = &beagle_vmmc1,
259 .vsim = &beagle_vsim,
260 .vdac = &beagle_vdac,
261 .vpll2 = &beagle_vpll2,
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262};
263
264static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
265 {
266 I2C_BOARD_INFO("twl4030", 0x48),
267 .flags = I2C_CLIENT_WAKE,
268 .irq = INT_34XX_SYS_NIRQ,
269 .platform_data = &beagle_twldata,
270 },
271};
272
273static int __init omap3_beagle_i2c_init(void)
274{
275 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
276 ARRAY_SIZE(beagle_i2c_boardinfo));
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277 /* Bus 3 is attached to the DVI port where devices like the pico DLP
278 * projector don't work reliably with 400kHz */
279 omap_register_i2c_bus(3, 100, NULL, 0);
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280 return 0;
281}
282
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283static void __init omap3_beagle_init_irq(void)
284{
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285 omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
286 mt46h32m32lf6_sdrc_params);
2885f000 287 omap_init_irq();
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288#ifdef CONFIG_OMAP_32K_TIMER
289 omap2_gp_clockevent_set_gptimer(12);
290#endif
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291 omap_gpio_init();
292}
293
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294static struct gpio_led gpio_leds[] = {
295 {
296 .name = "beagleboard::usr0",
297 .default_trigger = "heartbeat",
298 .gpio = 150,
299 },
300 {
301 .name = "beagleboard::usr1",
302 .default_trigger = "mmc0",
303 .gpio = 149,
304 },
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305 {
306 .name = "beagleboard::pmu_stat",
307 .gpio = -EINVAL, /* gets replaced */
308 .active_low = true,
309 },
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310};
311
312static struct gpio_led_platform_data gpio_led_info = {
313 .leds = gpio_leds,
314 .num_leds = ARRAY_SIZE(gpio_leds),
315};
316
317static struct platform_device leds_gpio = {
318 .name = "leds-gpio",
319 .id = -1,
320 .dev = {
321 .platform_data = &gpio_led_info,
322 },
323};
324
325static struct gpio_keys_button gpio_buttons[] = {
326 {
327 .code = BTN_EXTRA,
328 .gpio = 7,
329 .desc = "user",
330 .wakeup = 1,
331 },
332};
333
334static struct gpio_keys_platform_data gpio_key_info = {
335 .buttons = gpio_buttons,
336 .nbuttons = ARRAY_SIZE(gpio_buttons),
337};
338
339static struct platform_device keys_gpio = {
340 .name = "gpio-keys",
341 .id = -1,
342 .dev = {
343 .platform_data = &gpio_key_info,
344 },
345};
346
347static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
348 { OMAP_TAG_UART, &omap3_beagle_uart_config },
349 { OMAP_TAG_LCD, &omap3_beagle_lcd_config },
350};
351
352static struct platform_device *omap3_beagle_devices[] __initdata = {
353 &omap3_beagle_lcd_device,
354 &leds_gpio,
355 &keys_gpio,
356};
357
358static void __init omap3beagle_flash_init(void)
359{
360 u8 cs = 0;
361 u8 nandcs = GPMC_CS_NUM + 1;
362
363 u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
364
365 /* find out the chip-select on which NAND exists */
366 while (cs < GPMC_CS_NUM) {
367 u32 ret = 0;
368 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
369
370 if ((ret & 0xC00) == 0x800) {
371 printk(KERN_INFO "Found NAND on CS%d\n", cs);
372 if (nandcs > GPMC_CS_NUM)
373 nandcs = cs;
374 }
375 cs++;
376 }
377
378 if (nandcs > GPMC_CS_NUM) {
379 printk(KERN_INFO "NAND: Unable to find configuration "
380 "in GPMC\n ");
381 return;
382 }
383
384 if (nandcs < GPMC_CS_NUM) {
385 omap3beagle_nand_data.cs = nandcs;
386 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
387 (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
388 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
389
390 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
391 if (platform_device_register(&omap3beagle_nand_device) < 0)
392 printk(KERN_ERR "Unable to register NAND device\n");
393 }
394}
395
396static void __init omap3_beagle_init(void)
397{
90c62bf0 398 omap3_beagle_i2c_init();
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399 platform_add_devices(omap3_beagle_devices,
400 ARRAY_SIZE(omap3_beagle_devices));
401 omap_board_config = omap3_beagle_config;
402 omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
403 omap_serial_init();
90c62bf0 404
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405 omap_cfg_reg(J25_34XX_GPIO170);
406 gpio_request(170, "DVI_nPD");
407 /* REVISIT leave DVI powered down until it's needed ... */
408 gpio_direction_output(170, true);
409
18cb7aca 410 usb_musb_init();
2885f000 411 omap3beagle_flash_init();
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412
413 /* Ensure SDRC pins are mux'd for self-refresh */
414 omap_cfg_reg(H16_34XX_SDRC_CKE0);
415 omap_cfg_reg(H17_34XX_SDRC_CKE1);
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416}
417
418static void __init omap3_beagle_map_io(void)
419{
420 omap2_set_globals_343x();
421 omap2_map_common_io();
422}
423
424MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
425 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
426 .phys_io = 0x48000000,
427 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
428 .boot_params = 0x80000100,
429 .map_io = omap3_beagle_map_io,
430 .init_irq = omap3_beagle_init_irq,
431 .init_machine = omap3_beagle_init,
432 .timer = &omap_timer,
433MACHINE_END
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