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/gpio/machine.h>
30 #include <linux/kernel.h>
31 #include <linux/init.h>
32 #include <linux/platform_device.h>
33 #include <linux/interrupt.h>
34 #include <linux/irq.h>
35 #include <linux/i2c.h>
36 #include <linux/leds.h>
37 #include <linux/smc91x.h>
38 #include <linux/omapfb.h>
39 #include <linux/mtd/mtd.h>
40 #include <linux/mtd/partitions.h>
41 #include <linux/mtd/physmap.h>
42 #include <linux/mfd/tps65010.h>
43 #include <linux/platform_data/gpio-omap.h>
44 #include <linux/platform_data/omap1_bl.h>
45 #include <linux/soc/ti/omap1-io.h>
46 
47 #include <asm/mach-types.h>
48 #include <asm/mach/arch.h>
49 #include <asm/mach/map.h>
50 
51 #include "tc.h"
52 #include "flash.h"
53 #include "mux.h"
54 #include "hardware.h"
55 #include "usb.h"
56 #include "common.h"
57 
58 /* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
59 #define OMAP_GPIO_LABEL		"gpio-0-15"
60 
61 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
62 #define OMAP_OSK_ETHR_START		0x04800300
63 
64 /* TPS65010 has four GPIOs.  nPG and LED2 can be treated like GPIOs with
65  * alternate pin configurations for hardware-controlled blinking.
66  */
67 #define OSK_TPS_GPIO_BASE		(OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
68 #	define OSK_TPS_GPIO_USB_PWR_EN	(OSK_TPS_GPIO_BASE + 0)
69 #	define OSK_TPS_GPIO_LED_D3	(OSK_TPS_GPIO_BASE + 1)
70 #	define OSK_TPS_GPIO_LAN_RESET	(OSK_TPS_GPIO_BASE + 2)
71 #	define OSK_TPS_GPIO_DSP_PWR_EN	(OSK_TPS_GPIO_BASE + 3)
72 #	define OSK_TPS_GPIO_LED_D9	(OSK_TPS_GPIO_BASE + 4)
73 #	define OSK_TPS_GPIO_LED_D2	(OSK_TPS_GPIO_BASE + 5)
74 
75 static struct mtd_partition osk_partitions[] = {
76 	/* bootloader (U-Boot, etc) in first sector */
77 	{
78 	      .name		= "bootloader",
79 	      .offset		= 0,
80 	      .size		= SZ_128K,
81 	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
82 	},
83 	/* bootloader params in the next sector */
84 	{
85 	      .name		= "params",
86 	      .offset		= MTDPART_OFS_APPEND,
87 	      .size		= SZ_128K,
88 	      .mask_flags	= 0,
89 	}, {
90 	      .name		= "kernel",
91 	      .offset		= MTDPART_OFS_APPEND,
92 	      .size		= SZ_2M,
93 	      .mask_flags	= 0
94 	}, {
95 	      .name		= "filesystem",
96 	      .offset		= MTDPART_OFS_APPEND,
97 	      .size		= MTDPART_SIZ_FULL,
98 	      .mask_flags	= 0
99 	}
100 };
101 
102 static struct physmap_flash_data osk_flash_data = {
103 	.width		= 2,
104 	.set_vpp	= omap1_set_vpp,
105 	.parts		= osk_partitions,
106 	.nr_parts	= ARRAY_SIZE(osk_partitions),
107 };
108 
109 static struct resource osk_flash_resource = {
110 	/* this is on CS3, wherever it's mapped */
111 	.flags		= IORESOURCE_MEM,
112 };
113 
114 static struct platform_device osk5912_flash_device = {
115 	.name		= "physmap-flash",
116 	.id		= 0,
117 	.dev		= {
118 		.platform_data	= &osk_flash_data,
119 	},
120 	.num_resources	= 1,
121 	.resource	= &osk_flash_resource,
122 };
123 
124 static struct smc91x_platdata osk5912_smc91x_info = {
125 	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
126 	.leda	= RPC_LED_100_10,
127 	.ledb	= RPC_LED_TX_RX,
128 };
129 
130 static struct resource osk5912_smc91x_resources[] = {
131 	[0] = {
132 		.start	= OMAP_OSK_ETHR_START,		/* Physical */
133 		.end	= OMAP_OSK_ETHR_START + 0xf,
134 		.flags	= IORESOURCE_MEM,
135 	},
136 	[1] = {
137 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
138 	},
139 };
140 
141 static struct platform_device osk5912_smc91x_device = {
142 	.name		= "smc91x",
143 	.id		= -1,
144 	.dev	= {
145 		.platform_data	= &osk5912_smc91x_info,
146 	},
147 	.num_resources	= ARRAY_SIZE(osk5912_smc91x_resources),
148 	.resource	= osk5912_smc91x_resources,
149 };
150 
151 static struct resource osk5912_cf_resources[] = {
152 	[0] = {
153 		.flags	= IORESOURCE_IRQ,
154 	},
155 	[1] = {
156 		.flags = IORESOURCE_MEM,
157 	},
158 };
159 
160 static struct platform_device osk5912_cf_device = {
161 	.name		= "omap_cf",
162 	.id		= -1,
163 	.num_resources	= ARRAY_SIZE(osk5912_cf_resources),
164 	.resource	= osk5912_cf_resources,
165 };
166 
167 static struct platform_device *osk5912_devices[] __initdata = {
168 	&osk5912_flash_device,
169 	&osk5912_smc91x_device,
170 	&osk5912_cf_device,
171 };
172 
173 static const struct gpio_led tps_leds[] = {
174 	/* NOTE:  D9 and D2 have hardware blink support.
175 	 * Also, D9 requires non-battery power.
176 	 */
177 	{ .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
178 			.default_trigger = "disk-activity", },
179 	{ .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
180 	{ .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
181 			.default_trigger = "heartbeat", },
182 };
183 
184 static struct gpio_led_platform_data tps_leds_data = {
185 	.num_leds	= 3,
186 	.leds		= tps_leds,
187 };
188 
189 static struct platform_device osk5912_tps_leds = {
190 	.name			= "leds-gpio",
191 	.id			= 0,
192 	.dev.platform_data	= &tps_leds_data,
193 };
194 
osk_tps_setup(struct i2c_client * client,void * context)195 static int osk_tps_setup(struct i2c_client *client, void *context)
196 {
197 	if (!IS_BUILTIN(CONFIG_TPS65010))
198 		return -ENOSYS;
199 
200 	/* Set GPIO 1 HIGH to disable VBUS power supply;
201 	 * OHCI driver powers it up/down as needed.
202 	 */
203 	gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
204 	gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
205 	/* Free the GPIO again as the driver will request it */
206 	gpio_free(OSK_TPS_GPIO_USB_PWR_EN);
207 
208 	/* Set GPIO 2 high so LED D3 is off by default */
209 	tps65010_set_gpio_out_value(GPIO2, HIGH);
210 
211 	/* Set GPIO 3 low to take ethernet out of reset */
212 	gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
213 	gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
214 
215 	/* GPIO4 is VDD_DSP */
216 	gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
217 	gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
218 	/* REVISIT if DSP support isn't configured, power it off ... */
219 
220 	/* Let LED1 (D9) blink; leds-gpio may override it */
221 	tps65010_set_led(LED1, BLINK);
222 
223 	/* Set LED2 off by default */
224 	tps65010_set_led(LED2, OFF);
225 
226 	/* Enable LOW_PWR handshake */
227 	tps65010_set_low_pwr(ON);
228 
229 	/* Switch VLDO2 to 3.0V for AIC23 */
230 	tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
231 			| TPS_LDO1_ENABLE);
232 
233 	/* register these three LEDs */
234 	osk5912_tps_leds.dev.parent = &client->dev;
235 	platform_device_register(&osk5912_tps_leds);
236 
237 	return 0;
238 }
239 
240 static struct tps65010_board tps_board = {
241 	.base		= OSK_TPS_GPIO_BASE,
242 	.outmask	= 0x0f,
243 	.setup		= osk_tps_setup,
244 };
245 
246 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
247 	{
248 		/* This device will get the name "i2c-tps65010" */
249 		I2C_BOARD_INFO("tps65010", 0x48),
250 		.dev_name = "tps65010",
251 		.platform_data	= &tps_board,
252 
253 	},
254 	{
255 		I2C_BOARD_INFO("tlv320aic23", 0x1B),
256 	},
257 	/* TODO when driver support is ready:
258 	 *  - optionally on Mistral, ov9640 camera sensor at 0x30
259 	 */
260 };
261 
osk_init_smc91x(void)262 static void __init osk_init_smc91x(void)
263 {
264 	u32 l;
265 
266 	if ((gpio_request(0, "smc_irq")) < 0) {
267 		printk("Error requesting gpio 0 for smc91x irq\n");
268 		return;
269 	}
270 
271 	/* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
272 	l = omap_readl(EMIFS_CCS(1));
273 	l |= 0x3;
274 	omap_writel(l, EMIFS_CCS(1));
275 }
276 
osk_init_cf(int seg)277 static void __init osk_init_cf(int seg)
278 {
279 	struct resource *res = &osk5912_cf_resources[1];
280 
281 	omap_cfg_reg(M7_1610_GPIO62);
282 	if ((gpio_request(62, "cf_irq")) < 0) {
283 		printk("Error requesting gpio 62 for CF irq\n");
284 		return;
285 	}
286 
287 	switch (seg) {
288 	/* NOTE: CS0 could be configured too ... */
289 	case 1:
290 		res->start = OMAP_CS1_PHYS;
291 		break;
292 	case 2:
293 		res->start = OMAP_CS2_PHYS;
294 		break;
295 	case 3:
296 		res->start = omap_cs3_phys();
297 		break;
298 	}
299 
300 	res->end = res->start + SZ_8K - 1;
301 	osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
302 
303 	/* NOTE:  better EMIFS setup might support more cards; but the
304 	 * TRM only shows how to affect regular flash signals, not their
305 	 * CF/PCMCIA variants...
306 	 */
307 	pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
308 		seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
309 	omap_writel(0x0004a1b3, EMIFS_CCS(seg));	/* synch mode 4 etc */
310 	omap_writel(0x00000000, EMIFS_ACS(seg));	/* OE hold/setup */
311 
312 	/* the CF I/O IRQ is really active-low */
313 	irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
314 }
315 
316 static struct gpiod_lookup_table osk_usb_gpio_table = {
317 	.dev_id = "ohci",
318 	.table = {
319 		/* Power GPIO on the I2C-attached TPS65010 */
320 		GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH),
321 		GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
322 			    GPIO_ACTIVE_HIGH),
323 	},
324 };
325 
326 static struct omap_usb_config osk_usb_config __initdata = {
327 	/* has usb host connector (A) ... for development it can also
328 	 * be used, with a NONSTANDARD gender-bending cable/dongle, as
329 	 * a peripheral.
330 	 */
331 #if IS_ENABLED(CONFIG_USB_OMAP)
332 	.register_dev	= 1,
333 	.hmc_mode	= 0,
334 #else
335 	.register_host	= 1,
336 	.hmc_mode	= 16,
337 	.rwc		= 1,
338 #endif
339 	.pins[0]	= 2,
340 };
341 
342 #ifdef	CONFIG_OMAP_OSK_MISTRAL
343 static const struct omap_lcd_config osk_lcd_config __initconst = {
344 	.ctrl_name	= "internal",
345 };
346 #endif
347 
348 #ifdef	CONFIG_OMAP_OSK_MISTRAL
349 
350 #include <linux/input.h>
351 #include <linux/property.h>
352 #include <linux/spi/spi.h>
353 #include <linux/spi/ads7846.h>
354 
355 #include <linux/platform_data/keypad-omap.h>
356 
357 static const struct property_entry mistral_at24_properties[] = {
358 	PROPERTY_ENTRY_U32("pagesize", 16),
359 	{ }
360 };
361 
362 static const struct software_node mistral_at24_node = {
363 	.properties = mistral_at24_properties,
364 };
365 
366 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
367 	{
368 		/* NOTE:  powered from LCD supply */
369 		I2C_BOARD_INFO("24c04", 0x50),
370 		.swnode = &mistral_at24_node,
371 	},
372 	/* TODO when driver support is ready:
373 	 *  - optionally ov9640 camera sensor at 0x30
374 	 */
375 };
376 
377 static const unsigned int osk_keymap[] = {
378 	/* KEY(col, row, code) */
379 	KEY(0, 0, KEY_F1),		/* SW4 */
380 	KEY(3, 0, KEY_UP),		/* (sw2/up) */
381 	KEY(1, 1, KEY_LEFTCTRL),	/* SW5 */
382 	KEY(2, 1, KEY_LEFT),		/* (sw2/left) */
383 	KEY(0, 2, KEY_SPACE),		/* SW3 */
384 	KEY(1, 2, KEY_ESC),		/* SW6 */
385 	KEY(2, 2, KEY_DOWN),		/* (sw2/down) */
386 	KEY(2, 3, KEY_ENTER),		/* (sw2/select) */
387 	KEY(3, 3, KEY_RIGHT),		/* (sw2/right) */
388 };
389 
390 static const struct matrix_keymap_data osk_keymap_data = {
391 	.keymap		= osk_keymap,
392 	.keymap_size	= ARRAY_SIZE(osk_keymap),
393 };
394 
395 static struct omap_kp_platform_data osk_kp_data = {
396 	.rows		= 8,
397 	.cols		= 8,
398 	.keymap_data	= &osk_keymap_data,
399 	.delay		= 9,
400 };
401 
402 static struct resource osk5912_kp_resources[] = {
403 	[0] = {
404 		.start	= INT_KEYBOARD,
405 		.end	= INT_KEYBOARD,
406 		.flags	= IORESOURCE_IRQ,
407 	},
408 };
409 
410 static struct platform_device osk5912_kp_device = {
411 	.name		= "omap-keypad",
412 	.id		= -1,
413 	.dev		= {
414 		.platform_data = &osk_kp_data,
415 	},
416 	.num_resources	= ARRAY_SIZE(osk5912_kp_resources),
417 	.resource	= osk5912_kp_resources,
418 };
419 
420 static struct omap_backlight_config mistral_bl_data = {
421 	.default_intensity	= 0xa0,
422 };
423 
424 static struct platform_device mistral_bl_device = {
425 	.name		= "omap-bl",
426 	.id		= -1,
427 	.dev		= {
428 		.platform_data = &mistral_bl_data,
429 	},
430 };
431 
432 static struct platform_device osk5912_lcd_device = {
433 	.name		= "lcd_osk",
434 	.id		= -1,
435 };
436 
437 static const struct gpio_led mistral_gpio_led_pins[] = {
438 	{
439 		.name		= "mistral:red",
440 		.default_trigger = "heartbeat",
441 		.gpio		= 3,
442 	},
443 	{
444 		.name		= "mistral:green",
445 		.default_trigger = "cpu0",
446 		.gpio		= OMAP_MPUIO(4),
447 	},
448 };
449 
450 static struct gpio_led_platform_data mistral_gpio_led_data = {
451 	.leds		= mistral_gpio_led_pins,
452 	.num_leds	= ARRAY_SIZE(mistral_gpio_led_pins),
453 };
454 
455 static struct platform_device mistral_gpio_leds = {
456 	.name	= "leds-gpio",
457 	.id	= -1,
458 	.dev	= {
459 		.platform_data = &mistral_gpio_led_data,
460 	},
461 };
462 
463 static struct platform_device *mistral_devices[] __initdata = {
464 	&osk5912_kp_device,
465 	&mistral_bl_device,
466 	&osk5912_lcd_device,
467 	&mistral_gpio_leds,
468 };
469 
mistral_get_pendown_state(void)470 static int mistral_get_pendown_state(void)
471 {
472 	return !gpio_get_value(4);
473 }
474 
475 static const struct ads7846_platform_data mistral_ts_info = {
476 	.model			= 7846,
477 	.vref_delay_usecs	= 100,	/* internal, no capacitor */
478 	.x_plate_ohms		= 419,
479 	.y_plate_ohms		= 486,
480 	.get_pendown_state	= mistral_get_pendown_state,
481 };
482 
483 static struct spi_board_info __initdata mistral_boardinfo[] = { {
484 	/* MicroWire (bus 2) CS0 has an ads7846e */
485 	.modalias		= "ads7846",
486 	.platform_data		= &mistral_ts_info,
487 	.max_speed_hz		= 120000 /* max sample rate at 3V */
488 					* 26 /* command + data + overhead */,
489 	.bus_num		= 2,
490 	.chip_select		= 0,
491 } };
492 
493 static irqreturn_t
osk_mistral_wake_interrupt(int irq,void * ignored)494 osk_mistral_wake_interrupt(int irq, void *ignored)
495 {
496 	return IRQ_HANDLED;
497 }
498 
osk_mistral_init(void)499 static void __init osk_mistral_init(void)
500 {
501 	/* NOTE:  we could actually tell if there's a Mistral board
502 	 * attached, e.g. by trying to read something from the ads7846.
503 	 * But this arch_init() code is too early for that, since we
504 	 * can't talk to the ads or even the i2c eeprom.
505 	 */
506 
507 	/* parallel camera interface */
508 	omap_cfg_reg(J15_1610_CAM_LCLK);
509 	omap_cfg_reg(J18_1610_CAM_D7);
510 	omap_cfg_reg(J19_1610_CAM_D6);
511 	omap_cfg_reg(J14_1610_CAM_D5);
512 	omap_cfg_reg(K18_1610_CAM_D4);
513 	omap_cfg_reg(K19_1610_CAM_D3);
514 	omap_cfg_reg(K15_1610_CAM_D2);
515 	omap_cfg_reg(K14_1610_CAM_D1);
516 	omap_cfg_reg(L19_1610_CAM_D0);
517 	omap_cfg_reg(L18_1610_CAM_VS);
518 	omap_cfg_reg(L15_1610_CAM_HS);
519 	omap_cfg_reg(M19_1610_CAM_RSTZ);
520 	omap_cfg_reg(Y15_1610_CAM_OUTCLK);
521 
522 	/* serial camera interface */
523 	omap_cfg_reg(H19_1610_CAM_EXCLK);
524 	omap_cfg_reg(W13_1610_CCP_CLKM);
525 	omap_cfg_reg(Y12_1610_CCP_CLKP);
526 	/* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
527 	/* omap_cfg_reg(Y14_1610_CCP_DATAM); */
528 	omap_cfg_reg(W14_1610_CCP_DATAP);
529 
530 	/* CAM_PWDN */
531 	if (gpio_request(11, "cam_pwdn") == 0) {
532 		omap_cfg_reg(N20_1610_GPIO11);
533 		gpio_direction_output(11, 0);
534 	} else
535 		pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
536 
537 
538 	/* omap_cfg_reg(P19_1610_GPIO6); */	/* BUSY */
539 	gpio_request(6, "ts_busy");
540 	gpio_direction_input(6);
541 
542 	omap_cfg_reg(P20_1610_GPIO4);	/* PENIRQ */
543 	gpio_request(4, "ts_int");
544 	gpio_direction_input(4);
545 	irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
546 
547 	mistral_boardinfo[0].irq = gpio_to_irq(4);
548 	spi_register_board_info(mistral_boardinfo,
549 			ARRAY_SIZE(mistral_boardinfo));
550 
551 	/* the sideways button (SW1) is for use as a "wakeup" button
552 	 *
553 	 * NOTE:  The Mistral board has the wakeup button (SW1) wired
554 	 * to the LCD 3.3V rail, which is powered down during suspend.
555 	 * To allow this button to wake up the omap, work around this
556 	 * HW bug by rewiring SW1 to use the main 3.3V rail.
557 	 */
558 	omap_cfg_reg(N15_1610_MPUIO2);
559 	if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
560 		int ret = 0;
561 		int irq = gpio_to_irq(OMAP_MPUIO(2));
562 
563 		gpio_direction_input(OMAP_MPUIO(2));
564 		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
565 		/* share the IRQ in case someone wants to use the
566 		 * button for more than wakeup from system sleep.
567 		 */
568 		ret = request_irq(irq,
569 				&osk_mistral_wake_interrupt,
570 				IRQF_SHARED, "mistral_wakeup",
571 				&osk_mistral_wake_interrupt);
572 		if (ret != 0) {
573 			gpio_free(OMAP_MPUIO(2));
574 			printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
575 				ret);
576 		} else
577 			enable_irq_wake(irq);
578 	} else
579 		printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
580 
581 	/* LCD:  backlight, and power; power controls other devices on the
582 	 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
583 	 */
584 	omap_cfg_reg(PWL);
585 	if (gpio_request(2, "lcd_pwr") == 0)
586 		gpio_direction_output(2, 1);
587 
588 	/*
589 	 * GPIO based LEDs
590 	 */
591 	omap_cfg_reg(P18_1610_GPIO3);
592 	omap_cfg_reg(MPUIO4);
593 
594 	i2c_register_board_info(1, mistral_i2c_board_info,
595 			ARRAY_SIZE(mistral_i2c_board_info));
596 
597 	platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
598 }
599 #else
osk_mistral_init(void)600 static void __init osk_mistral_init(void) { }
601 #endif
602 
603 #define EMIFS_CS3_VAL	(0x88013141)
604 
osk_init(void)605 static void __init osk_init(void)
606 {
607 	u32 l;
608 
609 	osk_init_smc91x();
610 	osk_init_cf(2); /* CS2 */
611 
612 	/* Workaround for wrong CS3 (NOR flash) timing
613 	 * There are some U-Boot versions out there which configure
614 	 * wrong CS3 memory timings. This mainly leads to CRC
615 	 * or similar errors if you use NOR flash (e.g. with JFFS2)
616 	 */
617 	l = omap_readl(EMIFS_CCS(3));
618 	if (l != EMIFS_CS3_VAL)
619 		omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
620 
621 	osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
622 	osk_flash_resource.end += SZ_32M - 1;
623 	osk5912_smc91x_resources[1].start = gpio_to_irq(0);
624 	osk5912_smc91x_resources[1].end = gpio_to_irq(0);
625 	osk5912_cf_resources[0].start = gpio_to_irq(62);
626 	osk5912_cf_resources[0].end = gpio_to_irq(62);
627 	platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
628 
629 	l = omap_readl(USB_TRANSCEIVER_CTRL);
630 	l |= (3 << 1);
631 	omap_writel(l, USB_TRANSCEIVER_CTRL);
632 
633 	gpiod_add_lookup_table(&osk_usb_gpio_table);
634 	omap1_usb_init(&osk_usb_config);
635 
636 	/* irq for tps65010 chip */
637 	/* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
638 	if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
639 		gpio_direction_input(OMAP_MPUIO(1));
640 
641 	omap_serial_init();
642 	osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
643 	omap_register_i2c_bus(1, 400, osk_i2c_board_info,
644 			      ARRAY_SIZE(osk_i2c_board_info));
645 	osk_mistral_init();
646 
647 #ifdef	CONFIG_OMAP_OSK_MISTRAL
648 	omapfb_set_lcd_config(&osk_lcd_config);
649 #endif
650 
651 }
652 
653 MACHINE_START(OMAP_OSK, "TI-OSK")
654 	/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
655 	.atag_offset	= 0x100,
656 	.map_io		= omap16xx_map_io,
657 	.init_early	= omap1_init_early,
658 	.init_irq	= omap1_init_irq,
659 	.handle_irq	= omap1_handle_irq,
660 	.init_machine	= osk_init,
661 	.init_late	= omap1_init_late,
662 	.init_time	= omap1_timer_init,
663 	.restart	= omap1_restart,
664 MACHINE_END
665