Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / 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 twl4030_hsmmc_info mmc[] = {
112         {
113                 .mmc            = 1,
114                 .wires          = 8,
115                 .gpio_wp        = 29,
116         },
117         {}      /* Terminator */
118 };
119
120 static struct platform_device omap3_beagle_lcd_device = {
121         .name           = "omap3beagle_lcd",
122         .id             = -1,
123 };
124
125 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
126         .ctrl_name      = "internal",
127 };
128
129 static struct regulator_consumer_supply beagle_vmmc1_supply = {
130         .supply                 = "vmmc",
131 };
132
133 static struct regulator_consumer_supply beagle_vsim_supply = {
134         .supply                 = "vmmc_aux",
135 };
136
137 static struct gpio_led gpio_leds[];
138
139 static int beagle_twl_gpio_setup(struct device *dev,
140                 unsigned gpio, unsigned ngpio)
141 {
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         }
148         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
149         mmc[0].gpio_cd = gpio + 0;
150         twl4030_mmc_init(mmc);
151
152         /* link regulators to MMC adapters */
153         beagle_vmmc1_supply.dev = mmc[0].dev;
154         beagle_vsim_supply.dev = mmc[0].dev;
155
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");
165         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
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
173 static 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
184 static struct regulator_consumer_supply beagle_vdac_supply = {
185         .supply         = "vdac",
186         .dev            = &omap3_beagle_lcd_device.dev,
187 };
188
189 static 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) */
195 static 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) */
210 static 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) */
225 static 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 */
239 static 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
253 static struct twl4030_usb_data beagle_usb_data = {
254         .usb_mode       = T2_USB_MODE_ULPI,
255 };
256
257 static 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 */
262         .usb            = &beagle_usb_data,
263         .gpio           = &beagle_gpio_data,
264         .vmmc1          = &beagle_vmmc1,
265         .vsim           = &beagle_vsim,
266         .vdac           = &beagle_vdac,
267         .vpll2          = &beagle_vpll2,
268 };
269
270 static 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
279 static int __init omap3_beagle_i2c_init(void)
280 {
281         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
282                         ARRAY_SIZE(beagle_i2c_boardinfo));
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);
286         return 0;
287 }
288
289 static 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         },
300         {
301                 .name                   = "beagleboard::pmu_stat",
302                 .gpio                   = -EINVAL,      /* gets replaced */
303                 .active_low             = true,
304         },
305 };
306
307 static struct gpio_led_platform_data gpio_led_info = {
308         .leds           = gpio_leds,
309         .num_leds       = ARRAY_SIZE(gpio_leds),
310 };
311
312 static struct platform_device leds_gpio = {
313         .name   = "leds-gpio",
314         .id     = -1,
315         .dev    = {
316                 .platform_data  = &gpio_led_info,
317         },
318 };
319
320 static struct gpio_keys_button gpio_buttons[] = {
321         {
322                 .code                   = BTN_EXTRA,
323                 .gpio                   = 7,
324                 .desc                   = "user",
325                 .wakeup                 = 1,
326         },
327 };
328
329 static struct gpio_keys_platform_data gpio_key_info = {
330         .buttons        = gpio_buttons,
331         .nbuttons       = ARRAY_SIZE(gpio_buttons),
332 };
333
334 static struct platform_device keys_gpio = {
335         .name   = "gpio-keys",
336         .id     = -1,
337         .dev    = {
338                 .platform_data  = &gpio_key_info,
339         },
340 };
341
342 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
343         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
344 };
345
346 static 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
359 static struct platform_device *omap3_beagle_devices[] __initdata = {
360         &omap3_beagle_lcd_device,
361         &leds_gpio,
362         &keys_gpio,
363 };
364
365 static 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
403 static void __init omap3_beagle_init(void)
404 {
405         omap3_beagle_i2c_init();
406         platform_add_devices(omap3_beagle_devices,
407                         ARRAY_SIZE(omap3_beagle_devices));
408         omap_serial_init();
409
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
415         usb_musb_init();
416         omap3beagle_flash_init();
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);
421 }
422
423 static void __init omap3_beagle_map_io(void)
424 {
425         omap2_set_globals_343x();
426         omap2_map_common_io();
427 }
428
429 MACHINE_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,
438 MACHINE_END