ARM: restart: omap: use new restart hook
[deliverable/linux.git] / arch / arm / mach-omap1 / board-osk.c
1 /*
2 * linux/arch/arm/mach-omap1/board-osk.c
3 *
4 * Board specific init for OMAP5912 OSK
5 *
6 * Written by Dirk Behme <dirk.behme@de.bosch.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28 #include <linux/gpio.h>
29 #include <linux/kernel.h>
30 #include <linux/init.h>
31 #include <linux/platform_device.h>
32 #include <linux/interrupt.h>
33 #include <linux/irq.h>
34 #include <linux/i2c.h>
35 #include <linux/leds.h>
36 #include <linux/smc91x.h>
37
38 #include <linux/mtd/mtd.h>
39 #include <linux/mtd/partitions.h>
40 #include <linux/mtd/physmap.h>
41
42 #include <linux/i2c/tps65010.h>
43
44 #include <mach/hardware.h>
45
46 #include <asm/mach-types.h>
47 #include <asm/mach/arch.h>
48 #include <asm/mach/map.h>
49
50 #include <plat/flash.h>
51 #include <plat/usb.h>
52 #include <plat/mux.h>
53 #include <plat/tc.h>
54 #include "common.h"
55
56 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
57 #define OMAP_OSK_ETHR_START 0x04800300
58
59 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
60 * alternate pin configurations for hardware-controlled blinking.
61 */
62 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
63 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
64 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
65 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
66 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
67 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
68 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
69
70 static struct mtd_partition osk_partitions[] = {
71 /* bootloader (U-Boot, etc) in first sector */
72 {
73 .name = "bootloader",
74 .offset = 0,
75 .size = SZ_128K,
76 .mask_flags = MTD_WRITEABLE, /* force read-only */
77 },
78 /* bootloader params in the next sector */
79 {
80 .name = "params",
81 .offset = MTDPART_OFS_APPEND,
82 .size = SZ_128K,
83 .mask_flags = 0,
84 }, {
85 .name = "kernel",
86 .offset = MTDPART_OFS_APPEND,
87 .size = SZ_2M,
88 .mask_flags = 0
89 }, {
90 .name = "filesystem",
91 .offset = MTDPART_OFS_APPEND,
92 .size = MTDPART_SIZ_FULL,
93 .mask_flags = 0
94 }
95 };
96
97 static struct physmap_flash_data osk_flash_data = {
98 .width = 2,
99 .set_vpp = omap1_set_vpp,
100 .parts = osk_partitions,
101 .nr_parts = ARRAY_SIZE(osk_partitions),
102 };
103
104 static struct resource osk_flash_resource = {
105 /* this is on CS3, wherever it's mapped */
106 .flags = IORESOURCE_MEM,
107 };
108
109 static struct platform_device osk5912_flash_device = {
110 .name = "physmap-flash",
111 .id = 0,
112 .dev = {
113 .platform_data = &osk_flash_data,
114 },
115 .num_resources = 1,
116 .resource = &osk_flash_resource,
117 };
118
119 static struct smc91x_platdata osk5912_smc91x_info = {
120 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
121 .leda = RPC_LED_100_10,
122 .ledb = RPC_LED_TX_RX,
123 };
124
125 static struct resource osk5912_smc91x_resources[] = {
126 [0] = {
127 .start = OMAP_OSK_ETHR_START, /* Physical */
128 .end = OMAP_OSK_ETHR_START + 0xf,
129 .flags = IORESOURCE_MEM,
130 },
131 [1] = {
132 .start = OMAP_GPIO_IRQ(0),
133 .end = OMAP_GPIO_IRQ(0),
134 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
135 },
136 };
137
138 static struct platform_device osk5912_smc91x_device = {
139 .name = "smc91x",
140 .id = -1,
141 .dev = {
142 .platform_data = &osk5912_smc91x_info,
143 },
144 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
145 .resource = osk5912_smc91x_resources,
146 };
147
148 static struct resource osk5912_cf_resources[] = {
149 [0] = {
150 .start = OMAP_GPIO_IRQ(62),
151 .end = OMAP_GPIO_IRQ(62),
152 .flags = IORESOURCE_IRQ,
153 },
154 };
155
156 static struct platform_device osk5912_cf_device = {
157 .name = "omap_cf",
158 .id = -1,
159 .dev = {
160 .platform_data = (void *) 2 /* CS2 */,
161 },
162 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
163 .resource = osk5912_cf_resources,
164 };
165
166 static struct platform_device *osk5912_devices[] __initdata = {
167 &osk5912_flash_device,
168 &osk5912_smc91x_device,
169 &osk5912_cf_device,
170 };
171
172 static struct gpio_led tps_leds[] = {
173 /* NOTE: D9 and D2 have hardware blink support.
174 * Also, D9 requires non-battery power.
175 */
176 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
177 .default_trigger = "ide-disk", },
178 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
179 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
180 .default_trigger = "heartbeat", },
181 };
182
183 static struct gpio_led_platform_data tps_leds_data = {
184 .num_leds = 3,
185 .leds = tps_leds,
186 };
187
188 static struct platform_device osk5912_tps_leds = {
189 .name = "leds-gpio",
190 .id = 0,
191 .dev.platform_data = &tps_leds_data,
192 };
193
194 static int osk_tps_setup(struct i2c_client *client, void *context)
195 {
196 /* Set GPIO 1 HIGH to disable VBUS power supply;
197 * OHCI driver powers it up/down as needed.
198 */
199 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
200 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
201
202 /* Set GPIO 2 high so LED D3 is off by default */
203 tps65010_set_gpio_out_value(GPIO2, HIGH);
204
205 /* Set GPIO 3 low to take ethernet out of reset */
206 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
207 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
208
209 /* GPIO4 is VDD_DSP */
210 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
211 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
212 /* REVISIT if DSP support isn't configured, power it off ... */
213
214 /* Let LED1 (D9) blink; leds-gpio may override it */
215 tps65010_set_led(LED1, BLINK);
216
217 /* Set LED2 off by default */
218 tps65010_set_led(LED2, OFF);
219
220 /* Enable LOW_PWR handshake */
221 tps65010_set_low_pwr(ON);
222
223 /* Switch VLDO2 to 3.0V for AIC23 */
224 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
225 | TPS_LDO1_ENABLE);
226
227 /* register these three LEDs */
228 osk5912_tps_leds.dev.parent = &client->dev;
229 platform_device_register(&osk5912_tps_leds);
230
231 return 0;
232 }
233
234 static struct tps65010_board tps_board = {
235 .base = OSK_TPS_GPIO_BASE,
236 .outmask = 0x0f,
237 .setup = osk_tps_setup,
238 };
239
240 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
241 {
242 I2C_BOARD_INFO("tps65010", 0x48),
243 .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
244 .platform_data = &tps_board,
245
246 },
247 {
248 I2C_BOARD_INFO("tlv320aic23", 0x1B),
249 },
250 /* TODO when driver support is ready:
251 * - optionally on Mistral, ov9640 camera sensor at 0x30
252 */
253 };
254
255 static void __init osk_init_smc91x(void)
256 {
257 u32 l;
258
259 if ((gpio_request(0, "smc_irq")) < 0) {
260 printk("Error requesting gpio 0 for smc91x irq\n");
261 return;
262 }
263
264 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
265 l = omap_readl(EMIFS_CCS(1));
266 l |= 0x3;
267 omap_writel(l, EMIFS_CCS(1));
268 }
269
270 static void __init osk_init_cf(void)
271 {
272 omap_cfg_reg(M7_1610_GPIO62);
273 if ((gpio_request(62, "cf_irq")) < 0) {
274 printk("Error requesting gpio 62 for CF irq\n");
275 return;
276 }
277 /* the CF I/O IRQ is really active-low */
278 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
279 }
280
281 static struct omap_usb_config osk_usb_config __initdata = {
282 /* has usb host connector (A) ... for development it can also
283 * be used, with a NONSTANDARD gender-bending cable/dongle, as
284 * a peripheral.
285 */
286 #ifdef CONFIG_USB_GADGET_OMAP
287 .register_dev = 1,
288 .hmc_mode = 0,
289 #else
290 .register_host = 1,
291 .hmc_mode = 16,
292 .rwc = 1,
293 #endif
294 .pins[0] = 2,
295 };
296
297 #ifdef CONFIG_OMAP_OSK_MISTRAL
298 static struct omap_lcd_config osk_lcd_config __initdata = {
299 .ctrl_name = "internal",
300 };
301 #endif
302
303 static struct omap_board_config_kernel osk_config[] __initdata = {
304 #ifdef CONFIG_OMAP_OSK_MISTRAL
305 { OMAP_TAG_LCD, &osk_lcd_config },
306 #endif
307 };
308
309 #ifdef CONFIG_OMAP_OSK_MISTRAL
310
311 #include <linux/input.h>
312 #include <linux/i2c/at24.h>
313 #include <linux/spi/spi.h>
314 #include <linux/spi/ads7846.h>
315
316 #include <plat/keypad.h>
317
318 static struct at24_platform_data at24c04 = {
319 .byte_len = SZ_4K / 8,
320 .page_size = 16,
321 };
322
323 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
324 {
325 /* NOTE: powered from LCD supply */
326 I2C_BOARD_INFO("24c04", 0x50),
327 .platform_data = &at24c04,
328 },
329 /* TODO when driver support is ready:
330 * - optionally ov9640 camera sensor at 0x30
331 */
332 };
333
334 static const unsigned int osk_keymap[] = {
335 /* KEY(col, row, code) */
336 KEY(0, 0, KEY_F1), /* SW4 */
337 KEY(3, 0, KEY_UP), /* (sw2/up) */
338 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
339 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
340 KEY(0, 2, KEY_SPACE), /* SW3 */
341 KEY(1, 2, KEY_ESC), /* SW6 */
342 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
343 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
344 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
345 };
346
347 static const struct matrix_keymap_data osk_keymap_data = {
348 .keymap = osk_keymap,
349 .keymap_size = ARRAY_SIZE(osk_keymap),
350 };
351
352 static struct omap_kp_platform_data osk_kp_data = {
353 .rows = 8,
354 .cols = 8,
355 .keymap_data = &osk_keymap_data,
356 .delay = 9,
357 };
358
359 static struct resource osk5912_kp_resources[] = {
360 [0] = {
361 .start = INT_KEYBOARD,
362 .end = INT_KEYBOARD,
363 .flags = IORESOURCE_IRQ,
364 },
365 };
366
367 static struct platform_device osk5912_kp_device = {
368 .name = "omap-keypad",
369 .id = -1,
370 .dev = {
371 .platform_data = &osk_kp_data,
372 },
373 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
374 .resource = osk5912_kp_resources,
375 };
376
377 static struct omap_backlight_config mistral_bl_data = {
378 .default_intensity = 0xa0,
379 };
380
381 static struct platform_device mistral_bl_device = {
382 .name = "omap-bl",
383 .id = -1,
384 .dev = {
385 .platform_data = &mistral_bl_data,
386 },
387 };
388
389 static struct platform_device osk5912_lcd_device = {
390 .name = "lcd_osk",
391 .id = -1,
392 };
393
394 static struct platform_device *mistral_devices[] __initdata = {
395 &osk5912_kp_device,
396 &mistral_bl_device,
397 &osk5912_lcd_device,
398 };
399
400 static int mistral_get_pendown_state(void)
401 {
402 return !gpio_get_value(4);
403 }
404
405 static const struct ads7846_platform_data mistral_ts_info = {
406 .model = 7846,
407 .vref_delay_usecs = 100, /* internal, no capacitor */
408 .x_plate_ohms = 419,
409 .y_plate_ohms = 486,
410 .get_pendown_state = mistral_get_pendown_state,
411 };
412
413 static struct spi_board_info __initdata mistral_boardinfo[] = { {
414 /* MicroWire (bus 2) CS0 has an ads7846e */
415 .modalias = "ads7846",
416 .platform_data = &mistral_ts_info,
417 .irq = OMAP_GPIO_IRQ(4),
418 .max_speed_hz = 120000 /* max sample rate at 3V */
419 * 26 /* command + data + overhead */,
420 .bus_num = 2,
421 .chip_select = 0,
422 } };
423
424 #ifdef CONFIG_PM
425 static irqreturn_t
426 osk_mistral_wake_interrupt(int irq, void *ignored)
427 {
428 return IRQ_HANDLED;
429 }
430 #endif
431
432 static void __init osk_mistral_init(void)
433 {
434 /* NOTE: we could actually tell if there's a Mistral board
435 * attached, e.g. by trying to read something from the ads7846.
436 * But this arch_init() code is too early for that, since we
437 * can't talk to the ads or even the i2c eeprom.
438 */
439
440 /* parallel camera interface */
441 omap_cfg_reg(J15_1610_CAM_LCLK);
442 omap_cfg_reg(J18_1610_CAM_D7);
443 omap_cfg_reg(J19_1610_CAM_D6);
444 omap_cfg_reg(J14_1610_CAM_D5);
445 omap_cfg_reg(K18_1610_CAM_D4);
446 omap_cfg_reg(K19_1610_CAM_D3);
447 omap_cfg_reg(K15_1610_CAM_D2);
448 omap_cfg_reg(K14_1610_CAM_D1);
449 omap_cfg_reg(L19_1610_CAM_D0);
450 omap_cfg_reg(L18_1610_CAM_VS);
451 omap_cfg_reg(L15_1610_CAM_HS);
452 omap_cfg_reg(M19_1610_CAM_RSTZ);
453 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
454
455 /* serial camera interface */
456 omap_cfg_reg(H19_1610_CAM_EXCLK);
457 omap_cfg_reg(W13_1610_CCP_CLKM);
458 omap_cfg_reg(Y12_1610_CCP_CLKP);
459 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
460 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
461 omap_cfg_reg(W14_1610_CCP_DATAP);
462
463 /* CAM_PWDN */
464 if (gpio_request(11, "cam_pwdn") == 0) {
465 omap_cfg_reg(N20_1610_GPIO11);
466 gpio_direction_output(11, 0);
467 } else
468 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
469
470
471 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
472 gpio_request(6, "ts_busy");
473 gpio_direction_input(6);
474
475 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
476 gpio_request(4, "ts_int");
477 gpio_direction_input(4);
478 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
479
480 spi_register_board_info(mistral_boardinfo,
481 ARRAY_SIZE(mistral_boardinfo));
482
483 /* the sideways button (SW1) is for use as a "wakeup" button
484 *
485 * NOTE: The Mistral board has the wakeup button (SW1) wired
486 * to the LCD 3.3V rail, which is powered down during suspend.
487 * To allow this button to wake up the omap, work around this
488 * HW bug by rewiring SW1 to use the main 3.3V rail.
489 */
490 omap_cfg_reg(N15_1610_MPUIO2);
491 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
492 int ret = 0;
493 int irq = gpio_to_irq(OMAP_MPUIO(2));
494
495 gpio_direction_input(OMAP_MPUIO(2));
496 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
497 #ifdef CONFIG_PM
498 /* share the IRQ in case someone wants to use the
499 * button for more than wakeup from system sleep.
500 */
501 ret = request_irq(irq,
502 &osk_mistral_wake_interrupt,
503 IRQF_SHARED, "mistral_wakeup",
504 &osk_mistral_wake_interrupt);
505 if (ret != 0) {
506 gpio_free(OMAP_MPUIO(2));
507 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
508 ret);
509 } else
510 enable_irq_wake(irq);
511 #endif
512 } else
513 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
514
515 /* LCD: backlight, and power; power controls other devices on the
516 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
517 */
518 omap_cfg_reg(PWL);
519 if (gpio_request(2, "lcd_pwr") == 0)
520 gpio_direction_output(2, 1);
521
522 i2c_register_board_info(1, mistral_i2c_board_info,
523 ARRAY_SIZE(mistral_i2c_board_info));
524
525 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
526 }
527 #else
528 static void __init osk_mistral_init(void) { }
529 #endif
530
531 #define EMIFS_CS3_VAL (0x88013141)
532
533 static void __init osk_init(void)
534 {
535 u32 l;
536
537 osk_init_smc91x();
538 osk_init_cf();
539
540 /* Workaround for wrong CS3 (NOR flash) timing
541 * There are some U-Boot versions out there which configure
542 * wrong CS3 memory timings. This mainly leads to CRC
543 * or similar errors if you use NOR flash (e.g. with JFFS2)
544 */
545 l = omap_readl(EMIFS_CCS(3));
546 if (l != EMIFS_CS3_VAL)
547 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
548
549 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
550 osk_flash_resource.end += SZ_32M - 1;
551 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
552 omap_board_config = osk_config;
553 omap_board_config_size = ARRAY_SIZE(osk_config);
554
555 l = omap_readl(USB_TRANSCEIVER_CTRL);
556 l |= (3 << 1);
557 omap_writel(l, USB_TRANSCEIVER_CTRL);
558
559 omap1_usb_init(&osk_usb_config);
560
561 /* irq for tps65010 chip */
562 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
563 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
564 gpio_direction_input(OMAP_MPUIO(1));
565
566 omap_serial_init();
567 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
568 ARRAY_SIZE(osk_i2c_board_info));
569 osk_mistral_init();
570 }
571
572 MACHINE_START(OMAP_OSK, "TI-OSK")
573 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
574 .atag_offset = 0x100,
575 .map_io = omap16xx_map_io,
576 .init_early = omap1_init_early,
577 .reserve = omap_reserve,
578 .init_irq = omap1_init_irq,
579 .init_machine = osk_init,
580 .timer = &omap1_timer,
581 .restart = omap1_restart,
582 MACHINE_END
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