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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
37 #include <linux/mtd/mtd.h>
38 #include <linux/mtd/partitions.h>
39
40 #include <linux/i2c/tps65010.h>
41
42 #include <asm/hardware.h>
43 #include <asm/gpio.h>
44
45 #include <asm/mach-types.h>
46 #include <asm/mach/arch.h>
47 #include <asm/mach/map.h>
48 #include <asm/mach/flash.h>
49
50 #include <asm/arch/usb.h>
51 #include <asm/arch/mux.h>
52 #include <asm/arch/tc.h>
53 #include <asm/arch/common.h>
54 #include <asm/arch/mcbsp.h>
55 #include <asm/arch/omap-alsa.h>
56
57 static struct mtd_partition osk_partitions[] = {
58 /* bootloader (U-Boot, etc) in first sector */
59 {
60 .name = "bootloader",
61 .offset = 0,
62 .size = SZ_128K,
63 .mask_flags = MTD_WRITEABLE, /* force read-only */
64 },
65 /* bootloader params in the next sector */
66 {
67 .name = "params",
68 .offset = MTDPART_OFS_APPEND,
69 .size = SZ_128K,
70 .mask_flags = 0,
71 }, {
72 .name = "kernel",
73 .offset = MTDPART_OFS_APPEND,
74 .size = SZ_2M,
75 .mask_flags = 0
76 }, {
77 .name = "filesystem",
78 .offset = MTDPART_OFS_APPEND,
79 .size = MTDPART_SIZ_FULL,
80 .mask_flags = 0
81 }
82 };
83
84 static struct flash_platform_data osk_flash_data = {
85 .map_name = "cfi_probe",
86 .width = 2,
87 .parts = osk_partitions,
88 .nr_parts = ARRAY_SIZE(osk_partitions),
89 };
90
91 static struct resource osk_flash_resource = {
92 /* this is on CS3, wherever it's mapped */
93 .flags = IORESOURCE_MEM,
94 };
95
96 static struct platform_device osk5912_flash_device = {
97 .name = "omapflash",
98 .id = 0,
99 .dev = {
100 .platform_data = &osk_flash_data,
101 },
102 .num_resources = 1,
103 .resource = &osk_flash_resource,
104 };
105
106 static struct resource osk5912_smc91x_resources[] = {
107 [0] = {
108 .start = OMAP_OSK_ETHR_START, /* Physical */
109 .end = OMAP_OSK_ETHR_START + 0xf,
110 .flags = IORESOURCE_MEM,
111 },
112 [1] = {
113 .start = OMAP_GPIO_IRQ(0),
114 .end = OMAP_GPIO_IRQ(0),
115 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
116 },
117 };
118
119 static struct platform_device osk5912_smc91x_device = {
120 .name = "smc91x",
121 .id = -1,
122 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
123 .resource = osk5912_smc91x_resources,
124 };
125
126 static struct resource osk5912_cf_resources[] = {
127 [0] = {
128 .start = OMAP_GPIO_IRQ(62),
129 .end = OMAP_GPIO_IRQ(62),
130 .flags = IORESOURCE_IRQ,
131 },
132 };
133
134 static struct platform_device osk5912_cf_device = {
135 .name = "omap_cf",
136 .id = -1,
137 .dev = {
138 .platform_data = (void *) 2 /* CS2 */,
139 },
140 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
141 .resource = osk5912_cf_resources,
142 };
143
144 #define DEFAULT_BITPERSAMPLE 16
145
146 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
147 .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
148 .spcr1 = RINTM(3) | RRST,
149 .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
150 RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
151 .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
152 .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
153 XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
154 .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
155 .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
156 .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
157 /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
158 .pcr0 = CLKXP | CLKRP, /* mcbsp: slave */
159 };
160
161 static struct omap_alsa_codec_config alsa_config = {
162 .name = "OSK AIC23",
163 .mcbsp_regs_alsa = &mcbsp_regs,
164 .codec_configure_dev = NULL, /* aic23_configure, */
165 .codec_set_samplerate = NULL, /* aic23_set_samplerate, */
166 .codec_clock_setup = NULL, /* aic23_clock_setup, */
167 .codec_clock_on = NULL, /* aic23_clock_on, */
168 .codec_clock_off = NULL, /* aic23_clock_off, */
169 .get_default_samplerate = NULL, /* aic23_get_default_samplerate, */
170 };
171
172 static struct platform_device osk5912_mcbsp1_device = {
173 .name = "omap_alsa_mcbsp",
174 .id = 1,
175 .dev = {
176 .platform_data = &alsa_config,
177 },
178 };
179
180 static struct platform_device *osk5912_devices[] __initdata = {
181 &osk5912_flash_device,
182 &osk5912_smc91x_device,
183 &osk5912_cf_device,
184 &osk5912_mcbsp1_device,
185 };
186
187 static struct gpio_led tps_leds[] = {
188 /* NOTE: D9 and D2 have hardware blink support.
189 * Also, D9 requires non-battery power.
190 */
191 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", },
192 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
193 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
194 .default_trigger = "heartbeat", },
195 };
196
197 static struct gpio_led_platform_data tps_leds_data = {
198 .num_leds = 3,
199 .leds = tps_leds,
200 };
201
202 static struct platform_device osk5912_tps_leds = {
203 .name = "leds-gpio",
204 .id = 0,
205 .dev.platform_data = &tps_leds_data,
206 };
207
208 static int osk_tps_setup(struct i2c_client *client, void *context)
209 {
210 /* Set GPIO 1 HIGH to disable VBUS power supply;
211 * OHCI driver powers it up/down as needed.
212 */
213 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
214 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
215
216 /* Set GPIO 2 high so LED D3 is off by default */
217 tps65010_set_gpio_out_value(GPIO2, HIGH);
218
219 /* Set GPIO 3 low to take ethernet out of reset */
220 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
221 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
222
223 /* GPIO4 is VDD_DSP */
224 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
225 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
226 /* REVISIT if DSP support isn't configured, power it off ... */
227
228 /* Let LED1 (D9) blink; leds-gpio may override it */
229 tps65010_set_led(LED1, BLINK);
230
231 /* Set LED2 off by default */
232 tps65010_set_led(LED2, OFF);
233
234 /* Enable LOW_PWR handshake */
235 tps65010_set_low_pwr(ON);
236
237 /* Switch VLDO2 to 3.0V for AIC23 */
238 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
239 | TPS_LDO1_ENABLE);
240
241 /* register these three LEDs */
242 osk5912_tps_leds.dev.parent = &client->dev;
243 platform_device_register(&osk5912_tps_leds);
244
245 return 0;
246 }
247
248 static struct tps65010_board tps_board = {
249 .base = OSK_TPS_GPIO_BASE,
250 .outmask = 0x0f,
251 .setup = osk_tps_setup,
252 };
253
254 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
255 {
256 I2C_BOARD_INFO("tps65010", 0x48),
257 .type = "tps65010",
258 .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
259 .platform_data = &tps_board,
260
261 },
262 /* TODO when driver support is ready:
263 * - aic23 audio chip at 0x1a
264 * - on Mistral, 24c04 eeprom at 0x50
265 * - optionally on Mistral, ov9640 camera sensor at 0x30
266 */
267 };
268
269 static void __init osk_init_smc91x(void)
270 {
271 if ((gpio_request(0, "smc_irq")) < 0) {
272 printk("Error requesting gpio 0 for smc91x irq\n");
273 return;
274 }
275
276 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
277 EMIFS_CCS(1) |= 0x3;
278 }
279
280 static void __init osk_init_cf(void)
281 {
282 omap_cfg_reg(M7_1610_GPIO62);
283 if ((gpio_request(62, "cf_irq")) < 0) {
284 printk("Error requesting gpio 62 for CF irq\n");
285 return;
286 }
287 /* the CF I/O IRQ is really active-low */
288 set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
289 }
290
291 static void __init osk_init_irq(void)
292 {
293 omap1_init_common_hw();
294 omap_init_irq();
295 omap_gpio_init();
296 osk_init_smc91x();
297 osk_init_cf();
298 }
299
300 static struct omap_usb_config osk_usb_config __initdata = {
301 /* has usb host connector (A) ... for development it can also
302 * be used, with a NONSTANDARD gender-bending cable/dongle, as
303 * a peripheral.
304 */
305 #ifdef CONFIG_USB_GADGET_OMAP
306 .register_dev = 1,
307 .hmc_mode = 0,
308 #else
309 .register_host = 1,
310 .hmc_mode = 16,
311 .rwc = 1,
312 #endif
313 .pins[0] = 2,
314 };
315
316 static struct omap_uart_config osk_uart_config __initdata = {
317 .enabled_uarts = (1 << 0),
318 };
319
320 #ifdef CONFIG_OMAP_OSK_MISTRAL
321 static struct omap_lcd_config osk_lcd_config __initdata = {
322 .ctrl_name = "internal",
323 };
324 #endif
325
326 static struct omap_board_config_kernel osk_config[] __initdata = {
327 { OMAP_TAG_USB, &osk_usb_config },
328 { OMAP_TAG_UART, &osk_uart_config },
329 #ifdef CONFIG_OMAP_OSK_MISTRAL
330 { OMAP_TAG_LCD, &osk_lcd_config },
331 #endif
332 };
333
334 #ifdef CONFIG_OMAP_OSK_MISTRAL
335
336 #include <linux/input.h>
337 #include <linux/spi/spi.h>
338 #include <linux/spi/ads7846.h>
339
340 #include <asm/arch/keypad.h>
341
342 static const int osk_keymap[] = {
343 /* KEY(col, row, code) */
344 KEY(0, 0, KEY_F1), /* SW4 */
345 KEY(0, 3, KEY_UP), /* (sw2/up) */
346 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
347 KEY(1, 2, KEY_LEFT), /* (sw2/left) */
348 KEY(2, 0, KEY_SPACE), /* SW3 */
349 KEY(2, 1, KEY_ESC), /* SW6 */
350 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
351 KEY(3, 2, KEY_ENTER), /* (sw2/select) */
352 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
353 0
354 };
355
356 static struct omap_kp_platform_data osk_kp_data = {
357 .rows = 8,
358 .cols = 8,
359 .keymap = (int *) osk_keymap,
360 .keymapsize = ARRAY_SIZE(osk_keymap),
361 .delay = 9,
362 };
363
364 static struct resource osk5912_kp_resources[] = {
365 [0] = {
366 .start = INT_KEYBOARD,
367 .end = INT_KEYBOARD,
368 .flags = IORESOURCE_IRQ,
369 },
370 };
371
372 static struct platform_device osk5912_kp_device = {
373 .name = "omap-keypad",
374 .id = -1,
375 .dev = {
376 .platform_data = &osk_kp_data,
377 },
378 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
379 .resource = osk5912_kp_resources,
380 };
381
382 static struct omap_backlight_config mistral_bl_data = {
383 .default_intensity = 0xa0,
384 };
385
386 static struct platform_device mistral_bl_device = {
387 .name = "omap-bl",
388 .id = -1,
389 .dev = {
390 .platform_data = &mistral_bl_data,
391 },
392 };
393
394 static struct platform_device osk5912_lcd_device = {
395 .name = "lcd_osk",
396 .id = -1,
397 };
398
399 static struct platform_device *mistral_devices[] __initdata = {
400 &osk5912_kp_device,
401 &mistral_bl_device,
402 &osk5912_lcd_device,
403 };
404
405 static int mistral_get_pendown_state(void)
406 {
407 return !gpio_get_value(4);
408 }
409
410 static const struct ads7846_platform_data mistral_ts_info = {
411 .model = 7846,
412 .vref_delay_usecs = 100, /* internal, no capacitor */
413 .x_plate_ohms = 419,
414 .y_plate_ohms = 486,
415 .get_pendown_state = mistral_get_pendown_state,
416 };
417
418 static struct spi_board_info __initdata mistral_boardinfo[] = { {
419 /* MicroWire (bus 2) CS0 has an ads7846e */
420 .modalias = "ads7846",
421 .platform_data = &mistral_ts_info,
422 .irq = OMAP_GPIO_IRQ(4),
423 .max_speed_hz = 120000 /* max sample rate at 3V */
424 * 26 /* command + data + overhead */,
425 .bus_num = 2,
426 .chip_select = 0,
427 } };
428
429 #ifdef CONFIG_PM
430 static irqreturn_t
431 osk_mistral_wake_interrupt(int irq, void *ignored)
432 {
433 return IRQ_HANDLED;
434 }
435 #endif
436
437 static void __init osk_mistral_init(void)
438 {
439 /* NOTE: we could actually tell if there's a Mistral board
440 * attached, e.g. by trying to read something from the ads7846.
441 * But this arch_init() code is too early for that, since we
442 * can't talk to the ads or even the i2c eeprom.
443 */
444
445 /* parallel camera interface */
446 omap_cfg_reg(J15_1610_CAM_LCLK);
447 omap_cfg_reg(J18_1610_CAM_D7);
448 omap_cfg_reg(J19_1610_CAM_D6);
449 omap_cfg_reg(J14_1610_CAM_D5);
450 omap_cfg_reg(K18_1610_CAM_D4);
451 omap_cfg_reg(K19_1610_CAM_D3);
452 omap_cfg_reg(K15_1610_CAM_D2);
453 omap_cfg_reg(K14_1610_CAM_D1);
454 omap_cfg_reg(L19_1610_CAM_D0);
455 omap_cfg_reg(L18_1610_CAM_VS);
456 omap_cfg_reg(L15_1610_CAM_HS);
457 omap_cfg_reg(M19_1610_CAM_RSTZ);
458 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
459
460 /* serial camera interface */
461 omap_cfg_reg(H19_1610_CAM_EXCLK);
462 omap_cfg_reg(W13_1610_CCP_CLKM);
463 omap_cfg_reg(Y12_1610_CCP_CLKP);
464 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
465 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
466 omap_cfg_reg(W14_1610_CCP_DATAP);
467
468 /* CAM_PWDN */
469 if (gpio_request(11, "cam_pwdn") == 0) {
470 omap_cfg_reg(N20_1610_GPIO11);
471 gpio_direction_output(11, 0);
472 } else
473 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
474
475
476 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
477 gpio_request(6, "ts_busy");
478 gpio_direction_input(6);
479
480 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
481 gpio_request(4, "ts_int");
482 gpio_direction_input(4);
483 set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
484
485 spi_register_board_info(mistral_boardinfo,
486 ARRAY_SIZE(mistral_boardinfo));
487
488 /* the sideways button (SW1) is for use as a "wakeup" button */
489 omap_cfg_reg(N15_1610_MPUIO2);
490 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
491 int ret = 0;
492
493 gpio_direction_input(OMAP_MPUIO(2));
494 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
495 #ifdef CONFIG_PM
496 /* share the IRQ in case someone wants to use the
497 * button for more than wakeup from system sleep.
498 */
499 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
500 &osk_mistral_wake_interrupt,
501 IRQF_SHARED, "mistral_wakeup",
502 &osk_mistral_wake_interrupt);
503 if (ret != 0) {
504 gpio_free(OMAP_MPUIO(2));
505 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
506 ret);
507 } else
508 enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
509 #endif
510 } else
511 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
512
513 /* LCD: backlight, and power; power controls other devices on the
514 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
515 */
516 omap_cfg_reg(PWL);
517 if (gpio_request(2, "lcd_pwr") == 0)
518 gpio_direction_output(2, 1);
519
520 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
521 }
522 #else
523 static void __init osk_mistral_init(void) { }
524 #endif
525
526 #define EMIFS_CS3_VAL (0x88013141)
527
528 static void __init osk_init(void)
529 {
530 /* Workaround for wrong CS3 (NOR flash) timing
531 * There are some U-Boot versions out there which configure
532 * wrong CS3 memory timings. This mainly leads to CRC
533 * or similar errors if you use NOR flash (e.g. with JFFS2)
534 */
535 if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
536 EMIFS_CCS(3) = EMIFS_CS3_VAL;
537
538 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
539 osk_flash_resource.end += SZ_32M - 1;
540 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
541 omap_board_config = osk_config;
542 omap_board_config_size = ARRAY_SIZE(osk_config);
543 USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
544
545 /* irq for tps65010 chip */
546 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
547 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
548 gpio_direction_input(OMAP_MPUIO(1));
549
550 omap_serial_init();
551 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
552 ARRAY_SIZE(osk_i2c_board_info));
553 osk_mistral_init();
554 }
555
556 static void __init osk_map_io(void)
557 {
558 omap1_map_common_io();
559 }
560
561 MACHINE_START(OMAP_OSK, "TI-OSK")
562 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
563 .phys_io = 0xfff00000,
564 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
565 .boot_params = 0x10000100,
566 .map_io = osk_map_io,
567 .init_irq = osk_init_irq,
568 .init_machine = osk_init,
569 .timer = &omap_timer,
570 MACHINE_END