Merge branch 'at91' into devel
[linux-2.6] / arch / arm / mach-omap2 / board-omap3beagle.c
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
31 #include <linux/regulator/machine.h>
32 #include <linux/i2c/twl4030.h>
33
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>
44 #include <mach/mux.h>
45 #include <mach/usb.h>
46 #include <mach/timer-gp.h>
47
48 #include "mmc-twl4030.h"
49
50 #define GPMC_CS0_BASE  0x60
51 #define GPMC_CS_SIZE   0x30
52
53 #define NAND_BLOCK_SIZE         SZ_128K
54
55 static 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
86 static 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
95 static struct resource omap3beagle_nand_resource = {
96         .flags          = IORESOURCE_MEM,
97 };
98
99 static 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
109 #include "sdram-micron-mt46h32m32lf-6.h"
110
111 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
112         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
113 };
114
115 static struct twl4030_hsmmc_info mmc[] = {
116         {
117                 .mmc            = 1,
118                 .wires          = 8,
119                 .gpio_wp        = 29,
120         },
121         {}      /* Terminator */
122 };
123
124 static struct platform_device omap3_beagle_lcd_device = {
125         .name           = "omap3beagle_lcd",
126         .id             = -1,
127 };
128
129 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
130         .ctrl_name      = "internal",
131 };
132
133 static struct regulator_consumer_supply beagle_vmmc1_supply = {
134         .supply                 = "vmmc",
135 };
136
137 static struct regulator_consumer_supply beagle_vsim_supply = {
138         .supply                 = "vmmc_aux",
139 };
140
141 static struct gpio_led gpio_leds[];
142
143 static int beagle_twl_gpio_setup(struct device *dev,
144                 unsigned gpio, unsigned ngpio)
145 {
146         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
147         omap_cfg_reg(AH8_34XX_GPIO29);
148         mmc[0].gpio_cd = gpio + 0;
149         twl4030_mmc_init(mmc);
150
151         /* link regulators to MMC adapters */
152         beagle_vmmc1_supply.dev = mmc[0].dev;
153         beagle_vsim_supply.dev = mmc[0].dev;
154
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
172 static 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
183 static struct regulator_consumer_supply beagle_vdac_supply = {
184         .supply         = "vdac",
185         .dev            = &omap3_beagle_lcd_device.dev,
186 };
187
188 static 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) */
194 static 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) */
209 static 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) */
224 static 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 */
238 static 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
252 static 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,
258         .vmmc1          = &beagle_vmmc1,
259         .vsim           = &beagle_vsim,
260         .vdac           = &beagle_vdac,
261         .vpll2          = &beagle_vpll2,
262 };
263
264 static 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
273 static int __init omap3_beagle_i2c_init(void)
274 {
275         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
276                         ARRAY_SIZE(beagle_i2c_boardinfo));
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);
280         return 0;
281 }
282
283 static void __init omap3_beagle_init_irq(void)
284 {
285         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
286         omap_init_irq();
287 #ifdef CONFIG_OMAP_32K_TIMER
288         omap2_gp_clockevent_set_gptimer(12);
289 #endif
290         omap_gpio_init();
291 }
292
293 static struct gpio_led gpio_leds[] = {
294         {
295                 .name                   = "beagleboard::usr0",
296                 .default_trigger        = "heartbeat",
297                 .gpio                   = 150,
298         },
299         {
300                 .name                   = "beagleboard::usr1",
301                 .default_trigger        = "mmc0",
302                 .gpio                   = 149,
303         },
304         {
305                 .name                   = "beagleboard::pmu_stat",
306                 .gpio                   = -EINVAL,      /* gets replaced */
307                 .active_low             = true,
308         },
309 };
310
311 static struct gpio_led_platform_data gpio_led_info = {
312         .leds           = gpio_leds,
313         .num_leds       = ARRAY_SIZE(gpio_leds),
314 };
315
316 static struct platform_device leds_gpio = {
317         .name   = "leds-gpio",
318         .id     = -1,
319         .dev    = {
320                 .platform_data  = &gpio_led_info,
321         },
322 };
323
324 static struct gpio_keys_button gpio_buttons[] = {
325         {
326                 .code                   = BTN_EXTRA,
327                 .gpio                   = 7,
328                 .desc                   = "user",
329                 .wakeup                 = 1,
330         },
331 };
332
333 static struct gpio_keys_platform_data gpio_key_info = {
334         .buttons        = gpio_buttons,
335         .nbuttons       = ARRAY_SIZE(gpio_buttons),
336 };
337
338 static struct platform_device keys_gpio = {
339         .name   = "gpio-keys",
340         .id     = -1,
341         .dev    = {
342                 .platform_data  = &gpio_key_info,
343         },
344 };
345
346 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
347         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
348         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
349 };
350
351 static struct platform_device *omap3_beagle_devices[] __initdata = {
352         &omap3_beagle_lcd_device,
353         &leds_gpio,
354         &keys_gpio,
355 };
356
357 static void __init omap3beagle_flash_init(void)
358 {
359         u8 cs = 0;
360         u8 nandcs = GPMC_CS_NUM + 1;
361
362         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
363
364         /* find out the chip-select on which NAND exists */
365         while (cs < GPMC_CS_NUM) {
366                 u32 ret = 0;
367                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
368
369                 if ((ret & 0xC00) == 0x800) {
370                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
371                         if (nandcs > GPMC_CS_NUM)
372                                 nandcs = cs;
373                 }
374                 cs++;
375         }
376
377         if (nandcs > GPMC_CS_NUM) {
378                 printk(KERN_INFO "NAND: Unable to find configuration "
379                                  "in GPMC\n ");
380                 return;
381         }
382
383         if (nandcs < GPMC_CS_NUM) {
384                 omap3beagle_nand_data.cs = nandcs;
385                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
386                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
387                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
388
389                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
390                 if (platform_device_register(&omap3beagle_nand_device) < 0)
391                         printk(KERN_ERR "Unable to register NAND device\n");
392         }
393 }
394
395 static void __init omap3_beagle_init(void)
396 {
397         omap3_beagle_i2c_init();
398         platform_add_devices(omap3_beagle_devices,
399                         ARRAY_SIZE(omap3_beagle_devices));
400         omap_board_config = omap3_beagle_config;
401         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
402         omap_serial_init();
403
404         omap_cfg_reg(J25_34XX_GPIO170);
405         gpio_request(170, "DVI_nPD");
406         /* REVISIT leave DVI powered down until it's needed ... */
407         gpio_direction_output(170, true);
408
409         usb_musb_init();
410         omap3beagle_flash_init();
411 }
412
413 static void __init omap3_beagle_map_io(void)
414 {
415         omap2_set_globals_343x();
416         omap2_map_common_io();
417 }
418
419 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
420         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
421         .phys_io        = 0x48000000,
422         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
423         .boot_params    = 0x80000100,
424         .map_io         = omap3_beagle_map_io,
425         .init_irq       = omap3_beagle_init_irq,
426         .init_machine   = omap3_beagle_init,
427         .timer          = &omap_timer,
428 MACHINE_END