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 #include <linux/omapfb.h>
38 #include <linux/mtd/mtd.h>
39 #include <linux/mtd/partitions.h>
40 #include <linux/mtd/physmap.h>
41 #include <linux/i2c/tps65010.h>
42
43 #include <asm/mach-types.h>
44 #include <asm/mach/arch.h>
45 #include <asm/mach/map.h>
46
47 #include <plat/flash.h>
48 #include <plat/usb.h>
49 #include <plat/mux.h>
50 #include <plat/tc.h>
51
52 #include <mach/hardware.h>
53
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 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
133 },
134 };
135
136 static struct platform_device osk5912_smc91x_device = {
137 .name = "smc91x",
138 .id = -1,
139 .dev = {
140 .platform_data = &osk5912_smc91x_info,
141 },
142 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
143 .resource = osk5912_smc91x_resources,
144 };
145
146 static struct resource osk5912_cf_resources[] = {
147 [0] = {
148 .flags = IORESOURCE_IRQ,
149 },
150 };
151
152 static struct platform_device osk5912_cf_device = {
153 .name = "omap_cf",
154 .id = -1,
155 .dev = {
156 .platform_data = (void *) 2 /* CS2 */,
157 },
158 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
159 .resource = osk5912_cf_resources,
160 };
161
162 static struct platform_device *osk5912_devices[] __initdata = {
163 &osk5912_flash_device,
164 &osk5912_smc91x_device,
165 &osk5912_cf_device,
166 };
167
168 static struct gpio_led tps_leds[] = {
169 /* NOTE: D9 and D2 have hardware blink support.
170 * Also, D9 requires non-battery power.
171 */
172 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
173 .default_trigger = "ide-disk", },
174 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
175 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
176 .default_trigger = "heartbeat", },
177 };
178
179 static struct gpio_led_platform_data tps_leds_data = {
180 .num_leds = 3,
181 .leds = tps_leds,
182 };
183
184 static struct platform_device osk5912_tps_leds = {
185 .name = "leds-gpio",
186 .id = 0,
187 .dev.platform_data = &tps_leds_data,
188 };
189
osk_tps_setup(struct i2c_client * client,void * context)190 static int osk_tps_setup(struct i2c_client *client, void *context)
191 {
192 /* Set GPIO 1 HIGH to disable VBUS power supply;
193 * OHCI driver powers it up/down as needed.
194 */
195 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
196 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
197
198 /* Set GPIO 2 high so LED D3 is off by default */
199 tps65010_set_gpio_out_value(GPIO2, HIGH);
200
201 /* Set GPIO 3 low to take ethernet out of reset */
202 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
203 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
204
205 /* GPIO4 is VDD_DSP */
206 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
207 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
208 /* REVISIT if DSP support isn't configured, power it off ... */
209
210 /* Let LED1 (D9) blink; leds-gpio may override it */
211 tps65010_set_led(LED1, BLINK);
212
213 /* Set LED2 off by default */
214 tps65010_set_led(LED2, OFF);
215
216 /* Enable LOW_PWR handshake */
217 tps65010_set_low_pwr(ON);
218
219 /* Switch VLDO2 to 3.0V for AIC23 */
220 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
221 | TPS_LDO1_ENABLE);
222
223 /* register these three LEDs */
224 osk5912_tps_leds.dev.parent = &client->dev;
225 platform_device_register(&osk5912_tps_leds);
226
227 return 0;
228 }
229
230 static struct tps65010_board tps_board = {
231 .base = OSK_TPS_GPIO_BASE,
232 .outmask = 0x0f,
233 .setup = osk_tps_setup,
234 };
235
236 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
237 {
238 I2C_BOARD_INFO("tps65010", 0x48),
239 .platform_data = &tps_board,
240
241 },
242 {
243 I2C_BOARD_INFO("tlv320aic23", 0x1B),
244 },
245 /* TODO when driver support is ready:
246 * - optionally on Mistral, ov9640 camera sensor at 0x30
247 */
248 };
249
osk_init_smc91x(void)250 static void __init osk_init_smc91x(void)
251 {
252 u32 l;
253
254 if ((gpio_request(0, "smc_irq")) < 0) {
255 printk("Error requesting gpio 0 for smc91x irq\n");
256 return;
257 }
258
259 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
260 l = omap_readl(EMIFS_CCS(1));
261 l |= 0x3;
262 omap_writel(l, EMIFS_CCS(1));
263 }
264
osk_init_cf(void)265 static void __init osk_init_cf(void)
266 {
267 omap_cfg_reg(M7_1610_GPIO62);
268 if ((gpio_request(62, "cf_irq")) < 0) {
269 printk("Error requesting gpio 62 for CF irq\n");
270 return;
271 }
272 /* the CF I/O IRQ is really active-low */
273 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
274 }
275
276 static struct omap_usb_config osk_usb_config __initdata = {
277 /* has usb host connector (A) ... for development it can also
278 * be used, with a NONSTANDARD gender-bending cable/dongle, as
279 * a peripheral.
280 */
281 #ifdef CONFIG_USB_GADGET_OMAP
282 .register_dev = 1,
283 .hmc_mode = 0,
284 #else
285 .register_host = 1,
286 .hmc_mode = 16,
287 .rwc = 1,
288 #endif
289 .pins[0] = 2,
290 };
291
292 #ifdef CONFIG_OMAP_OSK_MISTRAL
293 static struct omap_lcd_config osk_lcd_config __initdata = {
294 .ctrl_name = "internal",
295 };
296 #endif
297
298 #ifdef CONFIG_OMAP_OSK_MISTRAL
299
300 #include <linux/input.h>
301 #include <linux/i2c/at24.h>
302 #include <linux/spi/spi.h>
303 #include <linux/spi/ads7846.h>
304
305 #include <plat/keypad.h>
306
307 static struct at24_platform_data at24c04 = {
308 .byte_len = SZ_4K / 8,
309 .page_size = 16,
310 };
311
312 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
313 {
314 /* NOTE: powered from LCD supply */
315 I2C_BOARD_INFO("24c04", 0x50),
316 .platform_data = &at24c04,
317 },
318 /* TODO when driver support is ready:
319 * - optionally ov9640 camera sensor at 0x30
320 */
321 };
322
323 static const unsigned int osk_keymap[] = {
324 /* KEY(col, row, code) */
325 KEY(0, 0, KEY_F1), /* SW4 */
326 KEY(3, 0, KEY_UP), /* (sw2/up) */
327 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
328 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
329 KEY(0, 2, KEY_SPACE), /* SW3 */
330 KEY(1, 2, KEY_ESC), /* SW6 */
331 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
332 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
333 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
334 };
335
336 static const struct matrix_keymap_data osk_keymap_data = {
337 .keymap = osk_keymap,
338 .keymap_size = ARRAY_SIZE(osk_keymap),
339 };
340
341 static struct omap_kp_platform_data osk_kp_data = {
342 .rows = 8,
343 .cols = 8,
344 .keymap_data = &osk_keymap_data,
345 .delay = 9,
346 };
347
348 static struct resource osk5912_kp_resources[] = {
349 [0] = {
350 .start = INT_KEYBOARD,
351 .end = INT_KEYBOARD,
352 .flags = IORESOURCE_IRQ,
353 },
354 };
355
356 static struct platform_device osk5912_kp_device = {
357 .name = "omap-keypad",
358 .id = -1,
359 .dev = {
360 .platform_data = &osk_kp_data,
361 },
362 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
363 .resource = osk5912_kp_resources,
364 };
365
366 static struct omap_backlight_config mistral_bl_data = {
367 .default_intensity = 0xa0,
368 };
369
370 static struct platform_device mistral_bl_device = {
371 .name = "omap-bl",
372 .id = -1,
373 .dev = {
374 .platform_data = &mistral_bl_data,
375 },
376 };
377
378 static struct platform_device osk5912_lcd_device = {
379 .name = "lcd_osk",
380 .id = -1,
381 };
382
383 static struct platform_device *mistral_devices[] __initdata = {
384 &osk5912_kp_device,
385 &mistral_bl_device,
386 &osk5912_lcd_device,
387 };
388
mistral_get_pendown_state(void)389 static int mistral_get_pendown_state(void)
390 {
391 return !gpio_get_value(4);
392 }
393
394 static const struct ads7846_platform_data mistral_ts_info = {
395 .model = 7846,
396 .vref_delay_usecs = 100, /* internal, no capacitor */
397 .x_plate_ohms = 419,
398 .y_plate_ohms = 486,
399 .get_pendown_state = mistral_get_pendown_state,
400 };
401
402 static struct spi_board_info __initdata mistral_boardinfo[] = { {
403 /* MicroWire (bus 2) CS0 has an ads7846e */
404 .modalias = "ads7846",
405 .platform_data = &mistral_ts_info,
406 .max_speed_hz = 120000 /* max sample rate at 3V */
407 * 26 /* command + data + overhead */,
408 .bus_num = 2,
409 .chip_select = 0,
410 } };
411
412 #ifdef CONFIG_PM
413 static irqreturn_t
osk_mistral_wake_interrupt(int irq,void * ignored)414 osk_mistral_wake_interrupt(int irq, void *ignored)
415 {
416 return IRQ_HANDLED;
417 }
418 #endif
419
osk_mistral_init(void)420 static void __init osk_mistral_init(void)
421 {
422 /* NOTE: we could actually tell if there's a Mistral board
423 * attached, e.g. by trying to read something from the ads7846.
424 * But this arch_init() code is too early for that, since we
425 * can't talk to the ads or even the i2c eeprom.
426 */
427
428 /* parallel camera interface */
429 omap_cfg_reg(J15_1610_CAM_LCLK);
430 omap_cfg_reg(J18_1610_CAM_D7);
431 omap_cfg_reg(J19_1610_CAM_D6);
432 omap_cfg_reg(J14_1610_CAM_D5);
433 omap_cfg_reg(K18_1610_CAM_D4);
434 omap_cfg_reg(K19_1610_CAM_D3);
435 omap_cfg_reg(K15_1610_CAM_D2);
436 omap_cfg_reg(K14_1610_CAM_D1);
437 omap_cfg_reg(L19_1610_CAM_D0);
438 omap_cfg_reg(L18_1610_CAM_VS);
439 omap_cfg_reg(L15_1610_CAM_HS);
440 omap_cfg_reg(M19_1610_CAM_RSTZ);
441 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
442
443 /* serial camera interface */
444 omap_cfg_reg(H19_1610_CAM_EXCLK);
445 omap_cfg_reg(W13_1610_CCP_CLKM);
446 omap_cfg_reg(Y12_1610_CCP_CLKP);
447 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
448 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
449 omap_cfg_reg(W14_1610_CCP_DATAP);
450
451 /* CAM_PWDN */
452 if (gpio_request(11, "cam_pwdn") == 0) {
453 omap_cfg_reg(N20_1610_GPIO11);
454 gpio_direction_output(11, 0);
455 } else
456 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
457
458
459 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
460 gpio_request(6, "ts_busy");
461 gpio_direction_input(6);
462
463 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
464 gpio_request(4, "ts_int");
465 gpio_direction_input(4);
466 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
467
468 mistral_boardinfo[0].irq = gpio_to_irq(4);
469 spi_register_board_info(mistral_boardinfo,
470 ARRAY_SIZE(mistral_boardinfo));
471
472 /* the sideways button (SW1) is for use as a "wakeup" button
473 *
474 * NOTE: The Mistral board has the wakeup button (SW1) wired
475 * to the LCD 3.3V rail, which is powered down during suspend.
476 * To allow this button to wake up the omap, work around this
477 * HW bug by rewiring SW1 to use the main 3.3V rail.
478 */
479 omap_cfg_reg(N15_1610_MPUIO2);
480 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
481 int ret = 0;
482 int irq = gpio_to_irq(OMAP_MPUIO(2));
483
484 gpio_direction_input(OMAP_MPUIO(2));
485 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
486 #ifdef CONFIG_PM
487 /* share the IRQ in case someone wants to use the
488 * button for more than wakeup from system sleep.
489 */
490 ret = request_irq(irq,
491 &osk_mistral_wake_interrupt,
492 IRQF_SHARED, "mistral_wakeup",
493 &osk_mistral_wake_interrupt);
494 if (ret != 0) {
495 gpio_free(OMAP_MPUIO(2));
496 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
497 ret);
498 } else
499 enable_irq_wake(irq);
500 #endif
501 } else
502 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
503
504 /* LCD: backlight, and power; power controls other devices on the
505 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
506 */
507 omap_cfg_reg(PWL);
508 if (gpio_request(2, "lcd_pwr") == 0)
509 gpio_direction_output(2, 1);
510
511 i2c_register_board_info(1, mistral_i2c_board_info,
512 ARRAY_SIZE(mistral_i2c_board_info));
513
514 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
515 }
516 #else
osk_mistral_init(void)517 static void __init osk_mistral_init(void) { }
518 #endif
519
520 #define EMIFS_CS3_VAL (0x88013141)
521
osk_init(void)522 static void __init osk_init(void)
523 {
524 u32 l;
525
526 osk_init_smc91x();
527 osk_init_cf();
528
529 /* Workaround for wrong CS3 (NOR flash) timing
530 * There are some U-Boot versions out there which configure
531 * wrong CS3 memory timings. This mainly leads to CRC
532 * or similar errors if you use NOR flash (e.g. with JFFS2)
533 */
534 l = omap_readl(EMIFS_CCS(3));
535 if (l != EMIFS_CS3_VAL)
536 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
537
538 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
539 osk_flash_resource.end += SZ_32M - 1;
540 osk5912_smc91x_resources[1].start = gpio_to_irq(0);
541 osk5912_smc91x_resources[1].end = gpio_to_irq(0);
542 osk5912_cf_resources[0].start = gpio_to_irq(62);
543 osk5912_cf_resources[0].end = gpio_to_irq(62);
544 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
545
546 l = omap_readl(USB_TRANSCEIVER_CTRL);
547 l |= (3 << 1);
548 omap_writel(l, USB_TRANSCEIVER_CTRL);
549
550 omap1_usb_init(&osk_usb_config);
551
552 /* irq for tps65010 chip */
553 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
554 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
555 gpio_direction_input(OMAP_MPUIO(1));
556
557 omap_serial_init();
558 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
559 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
560 ARRAY_SIZE(osk_i2c_board_info));
561 osk_mistral_init();
562
563 #ifdef CONFIG_OMAP_OSK_MISTRAL
564 omapfb_set_lcd_config(&osk_lcd_config);
565 #endif
566
567 }
568
569 MACHINE_START(OMAP_OSK, "TI-OSK")
570 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
571 .atag_offset = 0x100,
572 .map_io = omap16xx_map_io,
573 .init_early = omap1_init_early,
574 .reserve = omap_reserve,
575 .init_irq = omap1_init_irq,
576 .init_machine = osk_init,
577 .timer = &omap1_timer,
578 .restart = omap1_restart,
579 MACHINE_END
580