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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#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#include <linux/platform_data/gpio-omap.h>
43#include <linux/platform_data/omap1_bl.h>
44
45#include <asm/mach-types.h>
46#include <asm/mach/arch.h>
47#include <asm/mach/map.h>
48
49#include <mach/flash.h>
50#include <mach/mux.h>
51#include <mach/tc.h>
52
53#include <mach/hardware.h>
54#include <mach/usb.h>
55
56#include "common.h"
57
58/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
59#define OMAP_OSK_ETHR_START 0x04800300
60
61/* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
62 * alternate pin configurations for hardware-controlled blinking.
63 */
64#define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
65# define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
66# define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
67# define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
68# define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
69# define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
70# define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
71
72static struct mtd_partition osk_partitions[] = {
73 /* bootloader (U-Boot, etc) in first sector */
74 {
75 .name = "bootloader",
76 .offset = 0,
77 .size = SZ_128K,
78 .mask_flags = MTD_WRITEABLE, /* force read-only */
79 },
80 /* bootloader params in the next sector */
81 {
82 .name = "params",
83 .offset = MTDPART_OFS_APPEND,
84 .size = SZ_128K,
85 .mask_flags = 0,
86 }, {
87 .name = "kernel",
88 .offset = MTDPART_OFS_APPEND,
89 .size = SZ_2M,
90 .mask_flags = 0
91 }, {
92 .name = "filesystem",
93 .offset = MTDPART_OFS_APPEND,
94 .size = MTDPART_SIZ_FULL,
95 .mask_flags = 0
96 }
97};
98
99static struct physmap_flash_data osk_flash_data = {
100 .width = 2,
101 .set_vpp = omap1_set_vpp,
102 .parts = osk_partitions,
103 .nr_parts = ARRAY_SIZE(osk_partitions),
104};
105
106static struct resource osk_flash_resource = {
107 /* this is on CS3, wherever it's mapped */
108 .flags = IORESOURCE_MEM,
109};
110
111static struct platform_device osk5912_flash_device = {
112 .name = "physmap-flash",
113 .id = 0,
114 .dev = {
115 .platform_data = &osk_flash_data,
116 },
117 .num_resources = 1,
118 .resource = &osk_flash_resource,
119};
120
121static struct smc91x_platdata osk5912_smc91x_info = {
122 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
123 .leda = RPC_LED_100_10,
124 .ledb = RPC_LED_TX_RX,
125};
126
127static struct resource osk5912_smc91x_resources[] = {
128 [0] = {
129 .start = OMAP_OSK_ETHR_START, /* Physical */
130 .end = OMAP_OSK_ETHR_START + 0xf,
131 .flags = IORESOURCE_MEM,
132 },
133 [1] = {
134 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
135 },
136};
137
138static 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
148static struct resource osk5912_cf_resources[] = {
149 [0] = {
150 .flags = IORESOURCE_IRQ,
151 },
152};
153
154static struct platform_device osk5912_cf_device = {
155 .name = "omap_cf",
156 .id = -1,
157 .dev = {
158 .platform_data = (void *) 2 /* CS2 */,
159 },
160 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
161 .resource = osk5912_cf_resources,
162};
163
164static struct platform_device *osk5912_devices[] __initdata = {
165 &osk5912_flash_device,
166 &osk5912_smc91x_device,
167 &osk5912_cf_device,
168};
169
170static struct gpio_led tps_leds[] = {
171 /* NOTE: D9 and D2 have hardware blink support.
172 * Also, D9 requires non-battery power.
173 */
174 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
175 .default_trigger = "ide-disk", },
176 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
177 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
178 .default_trigger = "heartbeat", },
179};
180
181static struct gpio_led_platform_data tps_leds_data = {
182 .num_leds = 3,
183 .leds = tps_leds,
184};
185
186static struct platform_device osk5912_tps_leds = {
187 .name = "leds-gpio",
188 .id = 0,
189 .dev.platform_data = &tps_leds_data,
190};
191
192static int osk_tps_setup(struct i2c_client *client, void *context)
193{
194 if (!IS_BUILTIN(CONFIG_TPS65010))
195 return -ENOSYS;
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
235static struct tps65010_board tps_board = {
236 .base = OSK_TPS_GPIO_BASE,
237 .outmask = 0x0f,
238 .setup = osk_tps_setup,
239};
240
241static struct i2c_board_info __initdata osk_i2c_board_info[] = {
242 {
243 I2C_BOARD_INFO("tps65010", 0x48),
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
255static 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
270static 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
281static 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
298static struct omap_lcd_config osk_lcd_config __initdata = {
299 .ctrl_name = "internal",
300};
301#endif
302
303#ifdef CONFIG_OMAP_OSK_MISTRAL
304
305#include <linux/input.h>
306#include <linux/platform_data/at24.h>
307#include <linux/spi/spi.h>
308#include <linux/spi/ads7846.h>
309
310#include <linux/platform_data/keypad-omap.h>
311
312static struct at24_platform_data at24c04 = {
313 .byte_len = SZ_4K / 8,
314 .page_size = 16,
315};
316
317static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
318 {
319 /* NOTE: powered from LCD supply */
320 I2C_BOARD_INFO("24c04", 0x50),
321 .platform_data = &at24c04,
322 },
323 /* TODO when driver support is ready:
324 * - optionally ov9640 camera sensor at 0x30
325 */
326};
327
328static const unsigned int osk_keymap[] = {
329 /* KEY(col, row, code) */
330 KEY(0, 0, KEY_F1), /* SW4 */
331 KEY(3, 0, KEY_UP), /* (sw2/up) */
332 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
333 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
334 KEY(0, 2, KEY_SPACE), /* SW3 */
335 KEY(1, 2, KEY_ESC), /* SW6 */
336 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
337 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
338 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
339};
340
341static const struct matrix_keymap_data osk_keymap_data = {
342 .keymap = osk_keymap,
343 .keymap_size = ARRAY_SIZE(osk_keymap),
344};
345
346static struct omap_kp_platform_data osk_kp_data = {
347 .rows = 8,
348 .cols = 8,
349 .keymap_data = &osk_keymap_data,
350 .delay = 9,
351};
352
353static struct resource osk5912_kp_resources[] = {
354 [0] = {
355 .start = INT_KEYBOARD,
356 .end = INT_KEYBOARD,
357 .flags = IORESOURCE_IRQ,
358 },
359};
360
361static struct platform_device osk5912_kp_device = {
362 .name = "omap-keypad",
363 .id = -1,
364 .dev = {
365 .platform_data = &osk_kp_data,
366 },
367 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
368 .resource = osk5912_kp_resources,
369};
370
371static struct omap_backlight_config mistral_bl_data = {
372 .default_intensity = 0xa0,
373};
374
375static struct platform_device mistral_bl_device = {
376 .name = "omap-bl",
377 .id = -1,
378 .dev = {
379 .platform_data = &mistral_bl_data,
380 },
381};
382
383static struct platform_device osk5912_lcd_device = {
384 .name = "lcd_osk",
385 .id = -1,
386};
387
388static struct gpio_led mistral_gpio_led_pins[] = {
389 {
390 .name = "mistral:red",
391 .default_trigger = "heartbeat",
392 .gpio = 3,
393 },
394 {
395 .name = "mistral:green",
396 .default_trigger = "cpu0",
397 .gpio = OMAP_MPUIO(4),
398 },
399};
400
401static struct gpio_led_platform_data mistral_gpio_led_data = {
402 .leds = mistral_gpio_led_pins,
403 .num_leds = ARRAY_SIZE(mistral_gpio_led_pins),
404};
405
406static struct platform_device mistral_gpio_leds = {
407 .name = "leds-gpio",
408 .id = -1,
409 .dev = {
410 .platform_data = &mistral_gpio_led_data,
411 },
412};
413
414static struct platform_device *mistral_devices[] __initdata = {
415 &osk5912_kp_device,
416 &mistral_bl_device,
417 &osk5912_lcd_device,
418 &mistral_gpio_leds,
419};
420
421static int mistral_get_pendown_state(void)
422{
423 return !gpio_get_value(4);
424}
425
426static const struct ads7846_platform_data mistral_ts_info = {
427 .model = 7846,
428 .vref_delay_usecs = 100, /* internal, no capacitor */
429 .x_plate_ohms = 419,
430 .y_plate_ohms = 486,
431 .get_pendown_state = mistral_get_pendown_state,
432};
433
434static struct spi_board_info __initdata mistral_boardinfo[] = { {
435 /* MicroWire (bus 2) CS0 has an ads7846e */
436 .modalias = "ads7846",
437 .platform_data = &mistral_ts_info,
438 .max_speed_hz = 120000 /* max sample rate at 3V */
439 * 26 /* command + data + overhead */,
440 .bus_num = 2,
441 .chip_select = 0,
442} };
443
444#ifdef CONFIG_PM
445static irqreturn_t
446osk_mistral_wake_interrupt(int irq, void *ignored)
447{
448 return IRQ_HANDLED;
449}
450#endif
451
452static void __init osk_mistral_init(void)
453{
454 /* NOTE: we could actually tell if there's a Mistral board
455 * attached, e.g. by trying to read something from the ads7846.
456 * But this arch_init() code is too early for that, since we
457 * can't talk to the ads or even the i2c eeprom.
458 */
459
460 /* parallel camera interface */
461 omap_cfg_reg(J15_1610_CAM_LCLK);
462 omap_cfg_reg(J18_1610_CAM_D7);
463 omap_cfg_reg(J19_1610_CAM_D6);
464 omap_cfg_reg(J14_1610_CAM_D5);
465 omap_cfg_reg(K18_1610_CAM_D4);
466 omap_cfg_reg(K19_1610_CAM_D3);
467 omap_cfg_reg(K15_1610_CAM_D2);
468 omap_cfg_reg(K14_1610_CAM_D1);
469 omap_cfg_reg(L19_1610_CAM_D0);
470 omap_cfg_reg(L18_1610_CAM_VS);
471 omap_cfg_reg(L15_1610_CAM_HS);
472 omap_cfg_reg(M19_1610_CAM_RSTZ);
473 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
474
475 /* serial camera interface */
476 omap_cfg_reg(H19_1610_CAM_EXCLK);
477 omap_cfg_reg(W13_1610_CCP_CLKM);
478 omap_cfg_reg(Y12_1610_CCP_CLKP);
479 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
480 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
481 omap_cfg_reg(W14_1610_CCP_DATAP);
482
483 /* CAM_PWDN */
484 if (gpio_request(11, "cam_pwdn") == 0) {
485 omap_cfg_reg(N20_1610_GPIO11);
486 gpio_direction_output(11, 0);
487 } else
488 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
489
490
491 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
492 gpio_request(6, "ts_busy");
493 gpio_direction_input(6);
494
495 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
496 gpio_request(4, "ts_int");
497 gpio_direction_input(4);
498 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
499
500 mistral_boardinfo[0].irq = gpio_to_irq(4);
501 spi_register_board_info(mistral_boardinfo,
502 ARRAY_SIZE(mistral_boardinfo));
503
504 /* the sideways button (SW1) is for use as a "wakeup" button
505 *
506 * NOTE: The Mistral board has the wakeup button (SW1) wired
507 * to the LCD 3.3V rail, which is powered down during suspend.
508 * To allow this button to wake up the omap, work around this
509 * HW bug by rewiring SW1 to use the main 3.3V rail.
510 */
511 omap_cfg_reg(N15_1610_MPUIO2);
512 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
513 int ret = 0;
514 int irq = gpio_to_irq(OMAP_MPUIO(2));
515
516 gpio_direction_input(OMAP_MPUIO(2));
517 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
518#ifdef CONFIG_PM
519 /* share the IRQ in case someone wants to use the
520 * button for more than wakeup from system sleep.
521 */
522 ret = request_irq(irq,
523 &osk_mistral_wake_interrupt,
524 IRQF_SHARED, "mistral_wakeup",
525 &osk_mistral_wake_interrupt);
526 if (ret != 0) {
527 gpio_free(OMAP_MPUIO(2));
528 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
529 ret);
530 } else
531 enable_irq_wake(irq);
532#endif
533 } else
534 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
535
536 /* LCD: backlight, and power; power controls other devices on the
537 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
538 */
539 omap_cfg_reg(PWL);
540 if (gpio_request(2, "lcd_pwr") == 0)
541 gpio_direction_output(2, 1);
542
543 /*
544 * GPIO based LEDs
545 */
546 omap_cfg_reg(P18_1610_GPIO3);
547 omap_cfg_reg(MPUIO4);
548
549 i2c_register_board_info(1, mistral_i2c_board_info,
550 ARRAY_SIZE(mistral_i2c_board_info));
551
552 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
553}
554#else
555static void __init osk_mistral_init(void) { }
556#endif
557
558#define EMIFS_CS3_VAL (0x88013141)
559
560static void __init osk_init(void)
561{
562 u32 l;
563
564 osk_init_smc91x();
565 osk_init_cf();
566
567 /* Workaround for wrong CS3 (NOR flash) timing
568 * There are some U-Boot versions out there which configure
569 * wrong CS3 memory timings. This mainly leads to CRC
570 * or similar errors if you use NOR flash (e.g. with JFFS2)
571 */
572 l = omap_readl(EMIFS_CCS(3));
573 if (l != EMIFS_CS3_VAL)
574 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
575
576 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
577 osk_flash_resource.end += SZ_32M - 1;
578 osk5912_smc91x_resources[1].start = gpio_to_irq(0);
579 osk5912_smc91x_resources[1].end = gpio_to_irq(0);
580 osk5912_cf_resources[0].start = gpio_to_irq(62);
581 osk5912_cf_resources[0].end = gpio_to_irq(62);
582 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
583
584 l = omap_readl(USB_TRANSCEIVER_CTRL);
585 l |= (3 << 1);
586 omap_writel(l, USB_TRANSCEIVER_CTRL);
587
588 omap1_usb_init(&osk_usb_config);
589
590 /* irq for tps65010 chip */
591 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
592 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
593 gpio_direction_input(OMAP_MPUIO(1));
594
595 omap_serial_init();
596 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
597 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
598 ARRAY_SIZE(osk_i2c_board_info));
599 osk_mistral_init();
600
601#ifdef CONFIG_OMAP_OSK_MISTRAL
602 omapfb_set_lcd_config(&osk_lcd_config);
603#endif
604
605}
606
607MACHINE_START(OMAP_OSK, "TI-OSK")
608 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
609 .atag_offset = 0x100,
610 .map_io = omap16xx_map_io,
611 .init_early = omap1_init_early,
612 .init_irq = omap1_init_irq,
613 .init_machine = osk_init,
614 .init_late = omap1_init_late,
615 .init_time = omap1_timer_init,
616 .restart = omap1_restart,
617MACHINE_END
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
46#include <asm/mach-types.h>
47#include <asm/mach/arch.h>
48#include <asm/mach/map.h>
49
50#include "flash.h"
51#include <mach/mux.h>
52#include <mach/tc.h>
53
54#include <mach/hardware.h>
55#include <mach/usb.h>
56
57#include "common.h"
58
59/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
60#define OMAP_GPIO_LABEL "gpio-0-15"
61
62/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
63#define OMAP_OSK_ETHR_START 0x04800300
64
65/* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
66 * alternate pin configurations for hardware-controlled blinking.
67 */
68#define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
69# define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
70# define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
71# define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
72# define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
73# define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
74# define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
75
76static struct mtd_partition osk_partitions[] = {
77 /* bootloader (U-Boot, etc) in first sector */
78 {
79 .name = "bootloader",
80 .offset = 0,
81 .size = SZ_128K,
82 .mask_flags = MTD_WRITEABLE, /* force read-only */
83 },
84 /* bootloader params in the next sector */
85 {
86 .name = "params",
87 .offset = MTDPART_OFS_APPEND,
88 .size = SZ_128K,
89 .mask_flags = 0,
90 }, {
91 .name = "kernel",
92 .offset = MTDPART_OFS_APPEND,
93 .size = SZ_2M,
94 .mask_flags = 0
95 }, {
96 .name = "filesystem",
97 .offset = MTDPART_OFS_APPEND,
98 .size = MTDPART_SIZ_FULL,
99 .mask_flags = 0
100 }
101};
102
103static struct physmap_flash_data osk_flash_data = {
104 .width = 2,
105 .set_vpp = omap1_set_vpp,
106 .parts = osk_partitions,
107 .nr_parts = ARRAY_SIZE(osk_partitions),
108};
109
110static struct resource osk_flash_resource = {
111 /* this is on CS3, wherever it's mapped */
112 .flags = IORESOURCE_MEM,
113};
114
115static struct platform_device osk5912_flash_device = {
116 .name = "physmap-flash",
117 .id = 0,
118 .dev = {
119 .platform_data = &osk_flash_data,
120 },
121 .num_resources = 1,
122 .resource = &osk_flash_resource,
123};
124
125static struct smc91x_platdata osk5912_smc91x_info = {
126 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
127 .leda = RPC_LED_100_10,
128 .ledb = RPC_LED_TX_RX,
129};
130
131static struct resource osk5912_smc91x_resources[] = {
132 [0] = {
133 .start = OMAP_OSK_ETHR_START, /* Physical */
134 .end = OMAP_OSK_ETHR_START + 0xf,
135 .flags = IORESOURCE_MEM,
136 },
137 [1] = {
138 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
139 },
140};
141
142static struct platform_device osk5912_smc91x_device = {
143 .name = "smc91x",
144 .id = -1,
145 .dev = {
146 .platform_data = &osk5912_smc91x_info,
147 },
148 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
149 .resource = osk5912_smc91x_resources,
150};
151
152static struct resource osk5912_cf_resources[] = {
153 [0] = {
154 .flags = IORESOURCE_IRQ,
155 },
156};
157
158static struct platform_device osk5912_cf_device = {
159 .name = "omap_cf",
160 .id = -1,
161 .dev = {
162 .platform_data = (void *) 2 /* CS2 */,
163 },
164 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
165 .resource = osk5912_cf_resources,
166};
167
168static struct platform_device *osk5912_devices[] __initdata = {
169 &osk5912_flash_device,
170 &osk5912_smc91x_device,
171 &osk5912_cf_device,
172};
173
174static const struct gpio_led tps_leds[] = {
175 /* NOTE: D9 and D2 have hardware blink support.
176 * Also, D9 requires non-battery power.
177 */
178 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
179 .default_trigger = "disk-activity", },
180 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
181 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
182 .default_trigger = "heartbeat", },
183};
184
185static struct gpio_led_platform_data tps_leds_data = {
186 .num_leds = 3,
187 .leds = tps_leds,
188};
189
190static struct platform_device osk5912_tps_leds = {
191 .name = "leds-gpio",
192 .id = 0,
193 .dev.platform_data = &tps_leds_data,
194};
195
196static int osk_tps_setup(struct i2c_client *client, void *context)
197{
198 if (!IS_BUILTIN(CONFIG_TPS65010))
199 return -ENOSYS;
200
201 /* Set GPIO 1 HIGH to disable VBUS power supply;
202 * OHCI driver powers it up/down as needed.
203 */
204 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
205 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
206 /* Free the GPIO again as the driver will request it */
207 gpio_free(OSK_TPS_GPIO_USB_PWR_EN);
208
209 /* Set GPIO 2 high so LED D3 is off by default */
210 tps65010_set_gpio_out_value(GPIO2, HIGH);
211
212 /* Set GPIO 3 low to take ethernet out of reset */
213 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
214 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
215
216 /* GPIO4 is VDD_DSP */
217 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
218 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
219 /* REVISIT if DSP support isn't configured, power it off ... */
220
221 /* Let LED1 (D9) blink; leds-gpio may override it */
222 tps65010_set_led(LED1, BLINK);
223
224 /* Set LED2 off by default */
225 tps65010_set_led(LED2, OFF);
226
227 /* Enable LOW_PWR handshake */
228 tps65010_set_low_pwr(ON);
229
230 /* Switch VLDO2 to 3.0V for AIC23 */
231 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
232 | TPS_LDO1_ENABLE);
233
234 /* register these three LEDs */
235 osk5912_tps_leds.dev.parent = &client->dev;
236 platform_device_register(&osk5912_tps_leds);
237
238 return 0;
239}
240
241static struct tps65010_board tps_board = {
242 .base = OSK_TPS_GPIO_BASE,
243 .outmask = 0x0f,
244 .setup = osk_tps_setup,
245};
246
247static struct i2c_board_info __initdata osk_i2c_board_info[] = {
248 {
249 /* This device will get the name "i2c-tps65010" */
250 I2C_BOARD_INFO("tps65010", 0x48),
251 .dev_name = "tps65010",
252 .platform_data = &tps_board,
253
254 },
255 {
256 I2C_BOARD_INFO("tlv320aic23", 0x1B),
257 },
258 /* TODO when driver support is ready:
259 * - optionally on Mistral, ov9640 camera sensor at 0x30
260 */
261};
262
263static void __init osk_init_smc91x(void)
264{
265 u32 l;
266
267 if ((gpio_request(0, "smc_irq")) < 0) {
268 printk("Error requesting gpio 0 for smc91x irq\n");
269 return;
270 }
271
272 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
273 l = omap_readl(EMIFS_CCS(1));
274 l |= 0x3;
275 omap_writel(l, EMIFS_CCS(1));
276}
277
278static void __init osk_init_cf(void)
279{
280 omap_cfg_reg(M7_1610_GPIO62);
281 if ((gpio_request(62, "cf_irq")) < 0) {
282 printk("Error requesting gpio 62 for CF irq\n");
283 return;
284 }
285 /* the CF I/O IRQ is really active-low */
286 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
287}
288
289static struct gpiod_lookup_table osk_usb_gpio_table = {
290 .dev_id = "ohci",
291 .table = {
292 /* Power GPIO on the I2C-attached TPS65010 */
293 GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH),
294 GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
295 GPIO_ACTIVE_HIGH),
296 },
297};
298
299static struct omap_usb_config osk_usb_config __initdata = {
300 /* has usb host connector (A) ... for development it can also
301 * be used, with a NONSTANDARD gender-bending cable/dongle, as
302 * a peripheral.
303 */
304#if IS_ENABLED(CONFIG_USB_OMAP)
305 .register_dev = 1,
306 .hmc_mode = 0,
307#else
308 .register_host = 1,
309 .hmc_mode = 16,
310 .rwc = 1,
311#endif
312 .pins[0] = 2,
313};
314
315#ifdef CONFIG_OMAP_OSK_MISTRAL
316static const struct omap_lcd_config osk_lcd_config __initconst = {
317 .ctrl_name = "internal",
318};
319#endif
320
321#ifdef CONFIG_OMAP_OSK_MISTRAL
322
323#include <linux/input.h>
324#include <linux/property.h>
325#include <linux/spi/spi.h>
326#include <linux/spi/ads7846.h>
327
328#include <linux/platform_data/keypad-omap.h>
329
330static const struct property_entry mistral_at24_properties[] = {
331 PROPERTY_ENTRY_U32("pagesize", 16),
332 { }
333};
334
335static const struct software_node mistral_at24_node = {
336 .properties = mistral_at24_properties,
337};
338
339static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
340 {
341 /* NOTE: powered from LCD supply */
342 I2C_BOARD_INFO("24c04", 0x50),
343 .swnode = &mistral_at24_node,
344 },
345 /* TODO when driver support is ready:
346 * - optionally ov9640 camera sensor at 0x30
347 */
348};
349
350static const unsigned int osk_keymap[] = {
351 /* KEY(col, row, code) */
352 KEY(0, 0, KEY_F1), /* SW4 */
353 KEY(3, 0, KEY_UP), /* (sw2/up) */
354 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
355 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
356 KEY(0, 2, KEY_SPACE), /* SW3 */
357 KEY(1, 2, KEY_ESC), /* SW6 */
358 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
359 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
360 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
361};
362
363static const struct matrix_keymap_data osk_keymap_data = {
364 .keymap = osk_keymap,
365 .keymap_size = ARRAY_SIZE(osk_keymap),
366};
367
368static struct omap_kp_platform_data osk_kp_data = {
369 .rows = 8,
370 .cols = 8,
371 .keymap_data = &osk_keymap_data,
372 .delay = 9,
373};
374
375static struct resource osk5912_kp_resources[] = {
376 [0] = {
377 .start = INT_KEYBOARD,
378 .end = INT_KEYBOARD,
379 .flags = IORESOURCE_IRQ,
380 },
381};
382
383static struct platform_device osk5912_kp_device = {
384 .name = "omap-keypad",
385 .id = -1,
386 .dev = {
387 .platform_data = &osk_kp_data,
388 },
389 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
390 .resource = osk5912_kp_resources,
391};
392
393static struct omap_backlight_config mistral_bl_data = {
394 .default_intensity = 0xa0,
395};
396
397static struct platform_device mistral_bl_device = {
398 .name = "omap-bl",
399 .id = -1,
400 .dev = {
401 .platform_data = &mistral_bl_data,
402 },
403};
404
405static struct platform_device osk5912_lcd_device = {
406 .name = "lcd_osk",
407 .id = -1,
408};
409
410static const struct gpio_led mistral_gpio_led_pins[] = {
411 {
412 .name = "mistral:red",
413 .default_trigger = "heartbeat",
414 .gpio = 3,
415 },
416 {
417 .name = "mistral:green",
418 .default_trigger = "cpu0",
419 .gpio = OMAP_MPUIO(4),
420 },
421};
422
423static struct gpio_led_platform_data mistral_gpio_led_data = {
424 .leds = mistral_gpio_led_pins,
425 .num_leds = ARRAY_SIZE(mistral_gpio_led_pins),
426};
427
428static struct platform_device mistral_gpio_leds = {
429 .name = "leds-gpio",
430 .id = -1,
431 .dev = {
432 .platform_data = &mistral_gpio_led_data,
433 },
434};
435
436static struct platform_device *mistral_devices[] __initdata = {
437 &osk5912_kp_device,
438 &mistral_bl_device,
439 &osk5912_lcd_device,
440 &mistral_gpio_leds,
441};
442
443static int mistral_get_pendown_state(void)
444{
445 return !gpio_get_value(4);
446}
447
448static const struct ads7846_platform_data mistral_ts_info = {
449 .model = 7846,
450 .vref_delay_usecs = 100, /* internal, no capacitor */
451 .x_plate_ohms = 419,
452 .y_plate_ohms = 486,
453 .get_pendown_state = mistral_get_pendown_state,
454};
455
456static struct spi_board_info __initdata mistral_boardinfo[] = { {
457 /* MicroWire (bus 2) CS0 has an ads7846e */
458 .modalias = "ads7846",
459 .platform_data = &mistral_ts_info,
460 .max_speed_hz = 120000 /* max sample rate at 3V */
461 * 26 /* command + data + overhead */,
462 .bus_num = 2,
463 .chip_select = 0,
464} };
465
466static irqreturn_t
467osk_mistral_wake_interrupt(int irq, void *ignored)
468{
469 return IRQ_HANDLED;
470}
471
472static void __init osk_mistral_init(void)
473{
474 /* NOTE: we could actually tell if there's a Mistral board
475 * attached, e.g. by trying to read something from the ads7846.
476 * But this arch_init() code is too early for that, since we
477 * can't talk to the ads or even the i2c eeprom.
478 */
479
480 /* parallel camera interface */
481 omap_cfg_reg(J15_1610_CAM_LCLK);
482 omap_cfg_reg(J18_1610_CAM_D7);
483 omap_cfg_reg(J19_1610_CAM_D6);
484 omap_cfg_reg(J14_1610_CAM_D5);
485 omap_cfg_reg(K18_1610_CAM_D4);
486 omap_cfg_reg(K19_1610_CAM_D3);
487 omap_cfg_reg(K15_1610_CAM_D2);
488 omap_cfg_reg(K14_1610_CAM_D1);
489 omap_cfg_reg(L19_1610_CAM_D0);
490 omap_cfg_reg(L18_1610_CAM_VS);
491 omap_cfg_reg(L15_1610_CAM_HS);
492 omap_cfg_reg(M19_1610_CAM_RSTZ);
493 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
494
495 /* serial camera interface */
496 omap_cfg_reg(H19_1610_CAM_EXCLK);
497 omap_cfg_reg(W13_1610_CCP_CLKM);
498 omap_cfg_reg(Y12_1610_CCP_CLKP);
499 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
500 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
501 omap_cfg_reg(W14_1610_CCP_DATAP);
502
503 /* CAM_PWDN */
504 if (gpio_request(11, "cam_pwdn") == 0) {
505 omap_cfg_reg(N20_1610_GPIO11);
506 gpio_direction_output(11, 0);
507 } else
508 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
509
510
511 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
512 gpio_request(6, "ts_busy");
513 gpio_direction_input(6);
514
515 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
516 gpio_request(4, "ts_int");
517 gpio_direction_input(4);
518 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
519
520 mistral_boardinfo[0].irq = gpio_to_irq(4);
521 spi_register_board_info(mistral_boardinfo,
522 ARRAY_SIZE(mistral_boardinfo));
523
524 /* the sideways button (SW1) is for use as a "wakeup" button
525 *
526 * NOTE: The Mistral board has the wakeup button (SW1) wired
527 * to the LCD 3.3V rail, which is powered down during suspend.
528 * To allow this button to wake up the omap, work around this
529 * HW bug by rewiring SW1 to use the main 3.3V rail.
530 */
531 omap_cfg_reg(N15_1610_MPUIO2);
532 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
533 int ret = 0;
534 int irq = gpio_to_irq(OMAP_MPUIO(2));
535
536 gpio_direction_input(OMAP_MPUIO(2));
537 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
538 /* share the IRQ in case someone wants to use the
539 * button for more than wakeup from system sleep.
540 */
541 ret = request_irq(irq,
542 &osk_mistral_wake_interrupt,
543 IRQF_SHARED, "mistral_wakeup",
544 &osk_mistral_wake_interrupt);
545 if (ret != 0) {
546 gpio_free(OMAP_MPUIO(2));
547 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
548 ret);
549 } else
550 enable_irq_wake(irq);
551 } else
552 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
553
554 /* LCD: backlight, and power; power controls other devices on the
555 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
556 */
557 omap_cfg_reg(PWL);
558 if (gpio_request(2, "lcd_pwr") == 0)
559 gpio_direction_output(2, 1);
560
561 /*
562 * GPIO based LEDs
563 */
564 omap_cfg_reg(P18_1610_GPIO3);
565 omap_cfg_reg(MPUIO4);
566
567 i2c_register_board_info(1, mistral_i2c_board_info,
568 ARRAY_SIZE(mistral_i2c_board_info));
569
570 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
571}
572#else
573static void __init osk_mistral_init(void) { }
574#endif
575
576#define EMIFS_CS3_VAL (0x88013141)
577
578static void __init osk_init(void)
579{
580 u32 l;
581
582 osk_init_smc91x();
583 osk_init_cf();
584
585 /* Workaround for wrong CS3 (NOR flash) timing
586 * There are some U-Boot versions out there which configure
587 * wrong CS3 memory timings. This mainly leads to CRC
588 * or similar errors if you use NOR flash (e.g. with JFFS2)
589 */
590 l = omap_readl(EMIFS_CCS(3));
591 if (l != EMIFS_CS3_VAL)
592 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
593
594 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
595 osk_flash_resource.end += SZ_32M - 1;
596 osk5912_smc91x_resources[1].start = gpio_to_irq(0);
597 osk5912_smc91x_resources[1].end = gpio_to_irq(0);
598 osk5912_cf_resources[0].start = gpio_to_irq(62);
599 osk5912_cf_resources[0].end = gpio_to_irq(62);
600 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
601
602 l = omap_readl(USB_TRANSCEIVER_CTRL);
603 l |= (3 << 1);
604 omap_writel(l, USB_TRANSCEIVER_CTRL);
605
606 gpiod_add_lookup_table(&osk_usb_gpio_table);
607 omap1_usb_init(&osk_usb_config);
608
609 /* irq for tps65010 chip */
610 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
611 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
612 gpio_direction_input(OMAP_MPUIO(1));
613
614 omap_serial_init();
615 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
616 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
617 ARRAY_SIZE(osk_i2c_board_info));
618 osk_mistral_init();
619
620#ifdef CONFIG_OMAP_OSK_MISTRAL
621 omapfb_set_lcd_config(&osk_lcd_config);
622#endif
623
624}
625
626MACHINE_START(OMAP_OSK, "TI-OSK")
627 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
628 .atag_offset = 0x100,
629 .map_io = omap16xx_map_io,
630 .init_early = omap1_init_early,
631 .init_irq = omap1_init_irq,
632 .handle_irq = omap1_handle_irq,
633 .init_machine = osk_init,
634 .init_late = omap1_init_late,
635 .init_time = omap1_timer_init,
636 .restart = omap1_restart,
637MACHINE_END