Merge branch 'topic/cleanup' into for-linus
[linux-2.6-block.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
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31#include <linux/i2c/twl4030.h>
32
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33#include <mach/hardware.h>
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37#include <asm/mach/flash.h>
38
39#include <mach/board.h>
40#include <mach/common.h>
41#include <mach/gpmc.h>
42#include <mach/nand.h>
90c62bf0 43#include <mach/mux.h>
18cb7aca 44#include <mach/usb.h>
f248076c 45#include <mach/timer-gp.h>
2885f000 46
90c62bf0 47#include "mmc-twl4030.h"
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48
49#define GPMC_CS0_BASE 0x60
50#define GPMC_CS_SIZE 0x30
51
52#define NAND_BLOCK_SIZE SZ_128K
53
54static struct mtd_partition omap3beagle_nand_partitions[] = {
55 /* All the partition sizes are listed in terms of NAND block size */
56 {
57 .name = "X-Loader",
58 .offset = 0,
59 .size = 4 * NAND_BLOCK_SIZE,
60 .mask_flags = MTD_WRITEABLE, /* force read-only */
61 },
62 {
63 .name = "U-Boot",
64 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
65 .size = 15 * NAND_BLOCK_SIZE,
66 .mask_flags = MTD_WRITEABLE, /* force read-only */
67 },
68 {
69 .name = "U-Boot Env",
70 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
71 .size = 1 * NAND_BLOCK_SIZE,
72 },
73 {
74 .name = "Kernel",
75 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
76 .size = 32 * NAND_BLOCK_SIZE,
77 },
78 {
79 .name = "File System",
80 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
81 .size = MTDPART_SIZ_FULL,
82 },
83};
84
85static struct omap_nand_platform_data omap3beagle_nand_data = {
86 .options = NAND_BUSWIDTH_16,
87 .parts = omap3beagle_nand_partitions,
88 .nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions),
89 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
90 .nand_setup = NULL,
91 .dev_ready = NULL,
92};
93
94static struct resource omap3beagle_nand_resource = {
95 .flags = IORESOURCE_MEM,
96};
97
98static struct platform_device omap3beagle_nand_device = {
99 .name = "omap2-nand",
100 .id = -1,
101 .dev = {
102 .platform_data = &omap3beagle_nand_data,
103 },
104 .num_resources = 1,
105 .resource = &omap3beagle_nand_resource,
106};
107
108static struct omap_uart_config omap3_beagle_uart_config __initdata = {
109 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
110};
111
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112static struct twl4030_hsmmc_info mmc[] = {
113 {
114 .mmc = 1,
115 .wires = 8,
116 .gpio_wp = 29,
117 },
118 {} /* Terminator */
119};
120
121static struct gpio_led gpio_leds[];
122
123static int beagle_twl_gpio_setup(struct device *dev,
124 unsigned gpio, unsigned ngpio)
125{
126 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
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127 omap_cfg_reg(AH8_34XX_GPIO29);
128 mmc[0].gpio_cd = gpio + 0;
129 twl4030_mmc_init(mmc);
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130
131 /* REVISIT: need ehci-omap hooks for external VBUS
132 * power switch and overcurrent detect
133 */
134
135 gpio_request(gpio + 1, "EHCI_nOC");
136 gpio_direction_input(gpio + 1);
137
138 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
139 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
140 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
141
142 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
143 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
144
145 return 0;
146}
147
148static struct twl4030_gpio_platform_data beagle_gpio_data = {
149 .gpio_base = OMAP_MAX_GPIO_LINES,
150 .irq_base = TWL4030_GPIO_IRQ_BASE,
151 .irq_end = TWL4030_GPIO_IRQ_END,
152 .use_leds = true,
153 .pullups = BIT(1),
154 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
155 | BIT(15) | BIT(16) | BIT(17),
156 .setup = beagle_twl_gpio_setup,
157};
158
159static struct twl4030_platform_data beagle_twldata = {
160 .irq_base = TWL4030_IRQ_BASE,
161 .irq_end = TWL4030_IRQ_END,
162
163 /* platform_data for children goes here */
164 .gpio = &beagle_gpio_data,
165};
166
167static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
168 {
169 I2C_BOARD_INFO("twl4030", 0x48),
170 .flags = I2C_CLIENT_WAKE,
171 .irq = INT_34XX_SYS_NIRQ,
172 .platform_data = &beagle_twldata,
173 },
174};
175
176static int __init omap3_beagle_i2c_init(void)
177{
178 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
179 ARRAY_SIZE(beagle_i2c_boardinfo));
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180 /* Bus 3 is attached to the DVI port where devices like the pico DLP
181 * projector don't work reliably with 400kHz */
182 omap_register_i2c_bus(3, 100, NULL, 0);
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183 return 0;
184}
185
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186static void __init omap3_beagle_init_irq(void)
187{
87246b75 188 omap2_init_common_hw(NULL);
2885f000 189 omap_init_irq();
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190#ifdef CONFIG_OMAP_32K_TIMER
191 omap2_gp_clockevent_set_gptimer(12);
192#endif
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193 omap_gpio_init();
194}
195
196static struct platform_device omap3_beagle_lcd_device = {
197 .name = "omap3beagle_lcd",
198 .id = -1,
199};
200
201static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
202 .ctrl_name = "internal",
203};
204
205static struct gpio_led gpio_leds[] = {
206 {
207 .name = "beagleboard::usr0",
208 .default_trigger = "heartbeat",
209 .gpio = 150,
210 },
211 {
212 .name = "beagleboard::usr1",
213 .default_trigger = "mmc0",
214 .gpio = 149,
215 },
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216 {
217 .name = "beagleboard::pmu_stat",
218 .gpio = -EINVAL, /* gets replaced */
219 .active_low = true,
220 },
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221};
222
223static struct gpio_led_platform_data gpio_led_info = {
224 .leds = gpio_leds,
225 .num_leds = ARRAY_SIZE(gpio_leds),
226};
227
228static struct platform_device leds_gpio = {
229 .name = "leds-gpio",
230 .id = -1,
231 .dev = {
232 .platform_data = &gpio_led_info,
233 },
234};
235
236static struct gpio_keys_button gpio_buttons[] = {
237 {
238 .code = BTN_EXTRA,
239 .gpio = 7,
240 .desc = "user",
241 .wakeup = 1,
242 },
243};
244
245static struct gpio_keys_platform_data gpio_key_info = {
246 .buttons = gpio_buttons,
247 .nbuttons = ARRAY_SIZE(gpio_buttons),
248};
249
250static struct platform_device keys_gpio = {
251 .name = "gpio-keys",
252 .id = -1,
253 .dev = {
254 .platform_data = &gpio_key_info,
255 },
256};
257
258static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
259 { OMAP_TAG_UART, &omap3_beagle_uart_config },
260 { OMAP_TAG_LCD, &omap3_beagle_lcd_config },
261};
262
263static struct platform_device *omap3_beagle_devices[] __initdata = {
264 &omap3_beagle_lcd_device,
265 &leds_gpio,
266 &keys_gpio,
267};
268
269static void __init omap3beagle_flash_init(void)
270{
271 u8 cs = 0;
272 u8 nandcs = GPMC_CS_NUM + 1;
273
274 u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
275
276 /* find out the chip-select on which NAND exists */
277 while (cs < GPMC_CS_NUM) {
278 u32 ret = 0;
279 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
280
281 if ((ret & 0xC00) == 0x800) {
282 printk(KERN_INFO "Found NAND on CS%d\n", cs);
283 if (nandcs > GPMC_CS_NUM)
284 nandcs = cs;
285 }
286 cs++;
287 }
288
289 if (nandcs > GPMC_CS_NUM) {
290 printk(KERN_INFO "NAND: Unable to find configuration "
291 "in GPMC\n ");
292 return;
293 }
294
295 if (nandcs < GPMC_CS_NUM) {
296 omap3beagle_nand_data.cs = nandcs;
297 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
298 (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
299 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
300
301 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
302 if (platform_device_register(&omap3beagle_nand_device) < 0)
303 printk(KERN_ERR "Unable to register NAND device\n");
304 }
305}
306
307static void __init omap3_beagle_init(void)
308{
90c62bf0 309 omap3_beagle_i2c_init();
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310 platform_add_devices(omap3_beagle_devices,
311 ARRAY_SIZE(omap3_beagle_devices));
312 omap_board_config = omap3_beagle_config;
313 omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
314 omap_serial_init();
90c62bf0 315
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316 omap_cfg_reg(J25_34XX_GPIO170);
317 gpio_request(170, "DVI_nPD");
318 /* REVISIT leave DVI powered down until it's needed ... */
319 gpio_direction_output(170, true);
320
18cb7aca 321 usb_musb_init();
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322 omap3beagle_flash_init();
323}
324
325static void __init omap3_beagle_map_io(void)
326{
327 omap2_set_globals_343x();
328 omap2_map_common_io();
329}
330
331MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
332 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
333 .phys_io = 0x48000000,
334 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
335 .boot_params = 0x80000100,
336 .map_io = omap3_beagle_map_io,
337 .init_irq = omap3_beagle_init_irq,
338 .init_machine = omap3_beagle_init,
339 .timer = &omap_timer,
340MACHINE_END