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
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 #include <asm/gpio.h>
46
47 #include <asm/mach-types.h>
48 #include <asm/mach/arch.h>
49 #include <asm/mach/map.h>
50
51 #include <plat/flash.h>
52 #include <plat/usb.h>
53 #include <plat/mux.h>
54 #include <plat/tc.h>
55 #include <plat/common.h>
56
57 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
58 #define OMAP_OSK_ETHR_START 0x04800300
59
60 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
61 * alternate pin configurations for hardware-controlled blinking.
62 */
63 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
64 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
65 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
66 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
67 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
68 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
69 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
70
71 static struct mtd_partition osk_partitions[] = {
72 /* bootloader (U-Boot, etc) in first sector */
73 {
74 .name = "bootloader",
75 .offset = 0,
76 .size = SZ_128K,
77 .mask_flags = MTD_WRITEABLE, /* force read-only */
78 },
79 /* bootloader params in the next sector */
80 {
81 .name = "params",
82 .offset = MTDPART_OFS_APPEND,
83 .size = SZ_128K,
84 .mask_flags = 0,
85 }, {
86 .name = "kernel",
87 .offset = MTDPART_OFS_APPEND,
88 .size = SZ_2M,
89 .mask_flags = 0
90 }, {
91 .name = "filesystem",
92 .offset = MTDPART_OFS_APPEND,
93 .size = MTDPART_SIZ_FULL,
94 .mask_flags = 0
95 }
96 };
97
98 static struct physmap_flash_data osk_flash_data = {
99 .width = 2,
100 .set_vpp = omap1_set_vpp,
101 .parts = osk_partitions,
102 .nr_parts = ARRAY_SIZE(osk_partitions),
103 };
104
105 static struct resource osk_flash_resource = {
106 /* this is on CS3, wherever it's mapped */
107 .flags = IORESOURCE_MEM,
108 };
109
110 static struct platform_device osk5912_flash_device = {
111 .name = "physmap-flash",
112 .id = 0,
113 .dev = {
114 .platform_data = &osk_flash_data,
115 },
116 .num_resources = 1,
117 .resource = &osk_flash_resource,
118 };
119
120 static struct smc91x_platdata osk5912_smc91x_info = {
121 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
122 .leda = RPC_LED_100_10,
123 .ledb = RPC_LED_TX_RX,
124 };
125
126 static struct resource osk5912_smc91x_resources[] = {
127 [0] = {
128 .start = OMAP_OSK_ETHR_START, /* Physical */
129 .end = OMAP_OSK_ETHR_START + 0xf,
130 .flags = IORESOURCE_MEM,
131 },
132 [1] = {
133 .start = OMAP_GPIO_IRQ(0),
134 .end = OMAP_GPIO_IRQ(0),
135 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
136 },
137 };
138
139 static struct platform_device osk5912_smc91x_device = {
140 .name = "smc91x",
141 .id = -1,
142 .dev = {
143 .platform_data = &osk5912_smc91x_info,
144 },
145 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
146 .resource = osk5912_smc91x_resources,
147 };
148
149 static struct resource osk5912_cf_resources[] = {
150 [0] = {
151 .start = OMAP_GPIO_IRQ(62),
152 .end = OMAP_GPIO_IRQ(62),
153 .flags = IORESOURCE_IRQ,
154 },
155 };
156
157 static struct platform_device osk5912_cf_device = {
158 .name = "omap_cf",
159 .id = -1,
160 .dev = {
161 .platform_data = (void *) 2 /* CS2 */,
162 },
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 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 = "ide-disk", },
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 /* Set GPIO 1 HIGH to disable VBUS power supply;
198 * OHCI driver powers it up/down as needed.
199 */
200 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
201 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
202
203 /* Set GPIO 2 high so LED D3 is off by default */
204 tps65010_set_gpio_out_value(GPIO2, HIGH);
205
206 /* Set GPIO 3 low to take ethernet out of reset */
207 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
208 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
209
210 /* GPIO4 is VDD_DSP */
211 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
212 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
213 /* REVISIT if DSP support isn't configured, power it off ... */
214
215 /* Let LED1 (D9) blink; leds-gpio may override it */
216 tps65010_set_led(LED1, BLINK);
217
218 /* Set LED2 off by default */
219 tps65010_set_led(LED2, OFF);
220
221 /* Enable LOW_PWR handshake */
222 tps65010_set_low_pwr(ON);
223
224 /* Switch VLDO2 to 3.0V for AIC23 */
225 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
226 | TPS_LDO1_ENABLE);
227
228 /* register these three LEDs */
229 osk5912_tps_leds.dev.parent = &client->dev;
230 platform_device_register(&osk5912_tps_leds);
231
232 return 0;
233 }
234
235 static struct tps65010_board tps_board = {
236 .base = OSK_TPS_GPIO_BASE,
237 .outmask = 0x0f,
238 .setup = osk_tps_setup,
239 };
240
241 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
242 {
243 I2C_BOARD_INFO("tps65010", 0x48),
244 .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
245 .platform_data = &tps_board,
246
247 },
248 {
249 I2C_BOARD_INFO("tlv320aic23", 0x1B),
250 },
251 /* TODO when driver support is ready:
252 * - optionally on Mistral, ov9640 camera sensor at 0x30
253 */
254 };
255
osk_init_smc91x(void)256 static void __init osk_init_smc91x(void)
257 {
258 u32 l;
259
260 if ((gpio_request(0, "smc_irq")) < 0) {
261 printk("Error requesting gpio 0 for smc91x irq\n");
262 return;
263 }
264
265 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
266 l = omap_readl(EMIFS_CCS(1));
267 l |= 0x3;
268 omap_writel(l, EMIFS_CCS(1));
269 }
270
osk_init_cf(void)271 static void __init osk_init_cf(void)
272 {
273 omap_cfg_reg(M7_1610_GPIO62);
274 if ((gpio_request(62, "cf_irq")) < 0) {
275 printk("Error requesting gpio 62 for CF irq\n");
276 return;
277 }
278 /* the CF I/O IRQ is really active-low */
279 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
280 }
281
osk_init_irq(void)282 static void __init osk_init_irq(void)
283 {
284 omap1_init_common_hw();
285 omap_init_irq();
286 }
287
288 static struct omap_usb_config osk_usb_config __initdata = {
289 /* has usb host connector (A) ... for development it can also
290 * be used, with a NONSTANDARD gender-bending cable/dongle, as
291 * a peripheral.
292 */
293 #ifdef CONFIG_USB_GADGET_OMAP
294 .register_dev = 1,
295 .hmc_mode = 0,
296 #else
297 .register_host = 1,
298 .hmc_mode = 16,
299 .rwc = 1,
300 #endif
301 .pins[0] = 2,
302 };
303
304 #ifdef CONFIG_OMAP_OSK_MISTRAL
305 static struct omap_lcd_config osk_lcd_config __initdata = {
306 .ctrl_name = "internal",
307 };
308 #endif
309
310 static struct omap_board_config_kernel osk_config[] __initdata = {
311 #ifdef CONFIG_OMAP_OSK_MISTRAL
312 { OMAP_TAG_LCD, &osk_lcd_config },
313 #endif
314 };
315
316 #ifdef CONFIG_OMAP_OSK_MISTRAL
317
318 #include <linux/input.h>
319 #include <linux/i2c/at24.h>
320 #include <linux/spi/spi.h>
321 #include <linux/spi/ads7846.h>
322
323 #include <plat/keypad.h>
324
325 static struct at24_platform_data at24c04 = {
326 .byte_len = SZ_4K / 8,
327 .page_size = 16,
328 };
329
330 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
331 {
332 /* NOTE: powered from LCD supply */
333 I2C_BOARD_INFO("24c04", 0x50),
334 .platform_data = &at24c04,
335 },
336 /* TODO when driver support is ready:
337 * - optionally ov9640 camera sensor at 0x30
338 */
339 };
340
341 static const unsigned int osk_keymap[] = {
342 /* KEY(col, row, code) */
343 KEY(0, 0, KEY_F1), /* SW4 */
344 KEY(3, 0, KEY_UP), /* (sw2/up) */
345 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
346 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
347 KEY(0, 2, KEY_SPACE), /* SW3 */
348 KEY(1, 2, KEY_ESC), /* SW6 */
349 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
350 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
351 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
352 };
353
354 static const struct matrix_keymap_data osk_keymap_data = {
355 .keymap = osk_keymap,
356 .keymap_size = ARRAY_SIZE(osk_keymap),
357 };
358
359 static struct omap_kp_platform_data osk_kp_data = {
360 .rows = 8,
361 .cols = 8,
362 .keymap_data = &osk_keymap_data,
363 .delay = 9,
364 };
365
366 static struct resource osk5912_kp_resources[] = {
367 [0] = {
368 .start = INT_KEYBOARD,
369 .end = INT_KEYBOARD,
370 .flags = IORESOURCE_IRQ,
371 },
372 };
373
374 static struct platform_device osk5912_kp_device = {
375 .name = "omap-keypad",
376 .id = -1,
377 .dev = {
378 .platform_data = &osk_kp_data,
379 },
380 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
381 .resource = osk5912_kp_resources,
382 };
383
384 static struct omap_backlight_config mistral_bl_data = {
385 .default_intensity = 0xa0,
386 };
387
388 static struct platform_device mistral_bl_device = {
389 .name = "omap-bl",
390 .id = -1,
391 .dev = {
392 .platform_data = &mistral_bl_data,
393 },
394 };
395
396 static struct platform_device osk5912_lcd_device = {
397 .name = "lcd_osk",
398 .id = -1,
399 };
400
401 static struct platform_device *mistral_devices[] __initdata = {
402 &osk5912_kp_device,
403 &mistral_bl_device,
404 &osk5912_lcd_device,
405 };
406
mistral_get_pendown_state(void)407 static int mistral_get_pendown_state(void)
408 {
409 return !gpio_get_value(4);
410 }
411
412 static const struct ads7846_platform_data mistral_ts_info = {
413 .model = 7846,
414 .vref_delay_usecs = 100, /* internal, no capacitor */
415 .x_plate_ohms = 419,
416 .y_plate_ohms = 486,
417 .get_pendown_state = mistral_get_pendown_state,
418 };
419
420 static struct spi_board_info __initdata mistral_boardinfo[] = { {
421 /* MicroWire (bus 2) CS0 has an ads7846e */
422 .modalias = "ads7846",
423 .platform_data = &mistral_ts_info,
424 .irq = OMAP_GPIO_IRQ(4),
425 .max_speed_hz = 120000 /* max sample rate at 3V */
426 * 26 /* command + data + overhead */,
427 .bus_num = 2,
428 .chip_select = 0,
429 } };
430
431 #ifdef CONFIG_PM
432 static irqreturn_t
osk_mistral_wake_interrupt(int irq,void * ignored)433 osk_mistral_wake_interrupt(int irq, void *ignored)
434 {
435 return IRQ_HANDLED;
436 }
437 #endif
438
osk_mistral_init(void)439 static void __init osk_mistral_init(void)
440 {
441 /* NOTE: we could actually tell if there's a Mistral board
442 * attached, e.g. by trying to read something from the ads7846.
443 * But this arch_init() code is too early for that, since we
444 * can't talk to the ads or even the i2c eeprom.
445 */
446
447 /* parallel camera interface */
448 omap_cfg_reg(J15_1610_CAM_LCLK);
449 omap_cfg_reg(J18_1610_CAM_D7);
450 omap_cfg_reg(J19_1610_CAM_D6);
451 omap_cfg_reg(J14_1610_CAM_D5);
452 omap_cfg_reg(K18_1610_CAM_D4);
453 omap_cfg_reg(K19_1610_CAM_D3);
454 omap_cfg_reg(K15_1610_CAM_D2);
455 omap_cfg_reg(K14_1610_CAM_D1);
456 omap_cfg_reg(L19_1610_CAM_D0);
457 omap_cfg_reg(L18_1610_CAM_VS);
458 omap_cfg_reg(L15_1610_CAM_HS);
459 omap_cfg_reg(M19_1610_CAM_RSTZ);
460 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
461
462 /* serial camera interface */
463 omap_cfg_reg(H19_1610_CAM_EXCLK);
464 omap_cfg_reg(W13_1610_CCP_CLKM);
465 omap_cfg_reg(Y12_1610_CCP_CLKP);
466 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
467 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
468 omap_cfg_reg(W14_1610_CCP_DATAP);
469
470 /* CAM_PWDN */
471 if (gpio_request(11, "cam_pwdn") == 0) {
472 omap_cfg_reg(N20_1610_GPIO11);
473 gpio_direction_output(11, 0);
474 } else
475 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
476
477
478 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
479 gpio_request(6, "ts_busy");
480 gpio_direction_input(6);
481
482 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
483 gpio_request(4, "ts_int");
484 gpio_direction_input(4);
485 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
486
487 spi_register_board_info(mistral_boardinfo,
488 ARRAY_SIZE(mistral_boardinfo));
489
490 /* the sideways button (SW1) is for use as a "wakeup" button
491 *
492 * NOTE: The Mistral board has the wakeup button (SW1) wired
493 * to the LCD 3.3V rail, which is powered down during suspend.
494 * To allow this button to wake up the omap, work around this
495 * HW bug by rewiring SW1 to use the main 3.3V rail.
496 */
497 omap_cfg_reg(N15_1610_MPUIO2);
498 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
499 int ret = 0;
500 int irq = gpio_to_irq(OMAP_MPUIO(2));
501
502 gpio_direction_input(OMAP_MPUIO(2));
503 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
504 #ifdef CONFIG_PM
505 /* share the IRQ in case someone wants to use the
506 * button for more than wakeup from system sleep.
507 */
508 ret = request_irq(irq,
509 &osk_mistral_wake_interrupt,
510 IRQF_SHARED, "mistral_wakeup",
511 &osk_mistral_wake_interrupt);
512 if (ret != 0) {
513 gpio_free(OMAP_MPUIO(2));
514 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
515 ret);
516 } else
517 enable_irq_wake(irq);
518 #endif
519 } else
520 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
521
522 /* LCD: backlight, and power; power controls other devices on the
523 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
524 */
525 omap_cfg_reg(PWL);
526 if (gpio_request(2, "lcd_pwr") == 0)
527 gpio_direction_output(2, 1);
528
529 i2c_register_board_info(1, mistral_i2c_board_info,
530 ARRAY_SIZE(mistral_i2c_board_info));
531
532 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
533 }
534 #else
osk_mistral_init(void)535 static void __init osk_mistral_init(void) { }
536 #endif
537
538 #define EMIFS_CS3_VAL (0x88013141)
539
osk_init(void)540 static void __init osk_init(void)
541 {
542 u32 l;
543
544 osk_init_smc91x();
545 osk_init_cf();
546
547 /* Workaround for wrong CS3 (NOR flash) timing
548 * There are some U-Boot versions out there which configure
549 * wrong CS3 memory timings. This mainly leads to CRC
550 * or similar errors if you use NOR flash (e.g. with JFFS2)
551 */
552 l = omap_readl(EMIFS_CCS(3));
553 if (l != EMIFS_CS3_VAL)
554 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
555
556 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
557 osk_flash_resource.end += SZ_32M - 1;
558 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
559 omap_board_config = osk_config;
560 omap_board_config_size = ARRAY_SIZE(osk_config);
561
562 l = omap_readl(USB_TRANSCEIVER_CTRL);
563 l |= (3 << 1);
564 omap_writel(l, USB_TRANSCEIVER_CTRL);
565
566 omap1_usb_init(&osk_usb_config);
567
568 /* irq for tps65010 chip */
569 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
570 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
571 gpio_direction_input(OMAP_MPUIO(1));
572
573 omap_serial_init();
574 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
575 ARRAY_SIZE(osk_i2c_board_info));
576 osk_mistral_init();
577 }
578
osk_map_io(void)579 static void __init osk_map_io(void)
580 {
581 omap1_map_common_io();
582 }
583
584 MACHINE_START(OMAP_OSK, "TI-OSK")
585 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
586 .boot_params = 0x10000100,
587 .map_io = osk_map_io,
588 .reserve = omap_reserve,
589 .init_irq = osk_init_irq,
590 .init_machine = osk_init,
591 .timer = &omap_timer,
592 MACHINE_END
593