Merge branches 'core-fixes-for-linus', 'irq-fixes-for-linus' and 'timers-fixes-for...
[linux-2.6] / arch / arm / mach-omap1 / board-osk.c
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 <mach/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 <mach/usb.h>
51 #include <mach/mux.h>
52 #include <mach/tc.h>
53 #include <mach/common.h>
54
55 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
56 #define OMAP_OSK_ETHR_START             0x04800300
57
58 /* TPS65010 has four GPIOs.  nPG and LED2 can be treated like GPIOs with
59  * alternate pin configurations for hardware-controlled blinking.
60  */
61 #define OSK_TPS_GPIO_BASE               (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
62 #       define OSK_TPS_GPIO_USB_PWR_EN  (OSK_TPS_GPIO_BASE + 0)
63 #       define OSK_TPS_GPIO_LED_D3      (OSK_TPS_GPIO_BASE + 1)
64 #       define OSK_TPS_GPIO_LAN_RESET   (OSK_TPS_GPIO_BASE + 2)
65 #       define OSK_TPS_GPIO_DSP_PWR_EN  (OSK_TPS_GPIO_BASE + 3)
66 #       define OSK_TPS_GPIO_LED_D9      (OSK_TPS_GPIO_BASE + 4)
67 #       define OSK_TPS_GPIO_LED_D2      (OSK_TPS_GPIO_BASE + 5)
68
69 static struct mtd_partition osk_partitions[] = {
70         /* bootloader (U-Boot, etc) in first sector */
71         {
72               .name             = "bootloader",
73               .offset           = 0,
74               .size             = SZ_128K,
75               .mask_flags       = MTD_WRITEABLE, /* force read-only */
76         },
77         /* bootloader params in the next sector */
78         {
79               .name             = "params",
80               .offset           = MTDPART_OFS_APPEND,
81               .size             = SZ_128K,
82               .mask_flags       = 0,
83         }, {
84               .name             = "kernel",
85               .offset           = MTDPART_OFS_APPEND,
86               .size             = SZ_2M,
87               .mask_flags       = 0
88         }, {
89               .name             = "filesystem",
90               .offset           = MTDPART_OFS_APPEND,
91               .size             = MTDPART_SIZ_FULL,
92               .mask_flags       = 0
93         }
94 };
95
96 static struct flash_platform_data osk_flash_data = {
97         .map_name       = "cfi_probe",
98         .width          = 2,
99         .parts          = osk_partitions,
100         .nr_parts       = ARRAY_SIZE(osk_partitions),
101 };
102
103 static struct resource osk_flash_resource = {
104         /* this is on CS3, wherever it's mapped */
105         .flags          = IORESOURCE_MEM,
106 };
107
108 static struct platform_device osk5912_flash_device = {
109         .name           = "omapflash",
110         .id             = 0,
111         .dev            = {
112                 .platform_data  = &osk_flash_data,
113         },
114         .num_resources  = 1,
115         .resource       = &osk_flash_resource,
116 };
117
118 static struct resource osk5912_smc91x_resources[] = {
119         [0] = {
120                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
121                 .end    = OMAP_OSK_ETHR_START + 0xf,
122                 .flags  = IORESOURCE_MEM,
123         },
124         [1] = {
125                 .start  = OMAP_GPIO_IRQ(0),
126                 .end    = OMAP_GPIO_IRQ(0),
127                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
128         },
129 };
130
131 static struct platform_device osk5912_smc91x_device = {
132         .name           = "smc91x",
133         .id             = -1,
134         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
135         .resource       = osk5912_smc91x_resources,
136 };
137
138 static struct resource osk5912_cf_resources[] = {
139         [0] = {
140                 .start  = OMAP_GPIO_IRQ(62),
141                 .end    = OMAP_GPIO_IRQ(62),
142                 .flags  = IORESOURCE_IRQ,
143         },
144 };
145
146 static struct platform_device osk5912_cf_device = {
147         .name           = "omap_cf",
148         .id             = -1,
149         .dev = {
150                 .platform_data  = (void *) 2 /* CS2 */,
151         },
152         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
153         .resource       = osk5912_cf_resources,
154 };
155
156 static struct platform_device *osk5912_devices[] __initdata = {
157         &osk5912_flash_device,
158         &osk5912_smc91x_device,
159         &osk5912_cf_device,
160 };
161
162 static struct gpio_led tps_leds[] = {
163         /* NOTE:  D9 and D2 have hardware blink support.
164          * Also, D9 requires non-battery power.
165          */
166         { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
167                         .default_trigger = "ide-disk", },
168         { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
169         { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
170                         .default_trigger = "heartbeat", },
171 };
172
173 static struct gpio_led_platform_data tps_leds_data = {
174         .num_leds       = 3,
175         .leds           = tps_leds,
176 };
177
178 static struct platform_device osk5912_tps_leds = {
179         .name                   = "leds-gpio",
180         .id                     = 0,
181         .dev.platform_data      = &tps_leds_data,
182 };
183
184 static int osk_tps_setup(struct i2c_client *client, void *context)
185 {
186         /* Set GPIO 1 HIGH to disable VBUS power supply;
187          * OHCI driver powers it up/down as needed.
188          */
189         gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
190         gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
191
192         /* Set GPIO 2 high so LED D3 is off by default */
193         tps65010_set_gpio_out_value(GPIO2, HIGH);
194
195         /* Set GPIO 3 low to take ethernet out of reset */
196         gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
197         gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
198
199         /* GPIO4 is VDD_DSP */
200         gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
201         gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
202         /* REVISIT if DSP support isn't configured, power it off ... */
203
204         /* Let LED1 (D9) blink; leds-gpio may override it */
205         tps65010_set_led(LED1, BLINK);
206
207         /* Set LED2 off by default */
208         tps65010_set_led(LED2, OFF);
209
210         /* Enable LOW_PWR handshake */
211         tps65010_set_low_pwr(ON);
212
213         /* Switch VLDO2 to 3.0V for AIC23 */
214         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
215                         | TPS_LDO1_ENABLE);
216
217         /* register these three LEDs */
218         osk5912_tps_leds.dev.parent = &client->dev;
219         platform_device_register(&osk5912_tps_leds);
220
221         return 0;
222 }
223
224 static struct tps65010_board tps_board = {
225         .base           = OSK_TPS_GPIO_BASE,
226         .outmask        = 0x0f,
227         .setup          = osk_tps_setup,
228 };
229
230 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
231         {
232                 I2C_BOARD_INFO("tps65010", 0x48),
233                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
234                 .platform_data  = &tps_board,
235
236         },
237         {
238                 I2C_BOARD_INFO("tlv320aic23", 0x1B),
239         },
240         /* TODO when driver support is ready:
241          *  - optionally on Mistral, ov9640 camera sensor at 0x30
242          */
243 };
244
245 static void __init osk_init_smc91x(void)
246 {
247         u32 l;
248
249         if ((gpio_request(0, "smc_irq")) < 0) {
250                 printk("Error requesting gpio 0 for smc91x irq\n");
251                 return;
252         }
253
254         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
255         l = omap_readl(EMIFS_CCS(1));
256         l |= 0x3;
257         omap_writel(l, EMIFS_CCS(1));
258 }
259
260 static void __init osk_init_cf(void)
261 {
262         omap_cfg_reg(M7_1610_GPIO62);
263         if ((gpio_request(62, "cf_irq")) < 0) {
264                 printk("Error requesting gpio 62 for CF irq\n");
265                 return;
266         }
267         /* the CF I/O IRQ is really active-low */
268         set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
269 }
270
271 static void __init osk_init_irq(void)
272 {
273         omap1_init_common_hw();
274         omap_init_irq();
275         omap_gpio_init();
276         osk_init_smc91x();
277         osk_init_cf();
278 }
279
280 static struct omap_usb_config osk_usb_config __initdata = {
281         /* has usb host connector (A) ... for development it can also
282          * be used, with a NONSTANDARD gender-bending cable/dongle, as
283          * a peripheral.
284          */
285 #ifdef  CONFIG_USB_GADGET_OMAP
286         .register_dev   = 1,
287         .hmc_mode       = 0,
288 #else
289         .register_host  = 1,
290         .hmc_mode       = 16,
291         .rwc            = 1,
292 #endif
293         .pins[0]        = 2,
294 };
295
296 static struct omap_uart_config osk_uart_config __initdata = {
297         .enabled_uarts = (1 << 0),
298 };
299
300 #ifdef  CONFIG_OMAP_OSK_MISTRAL
301 static struct omap_lcd_config osk_lcd_config __initdata = {
302         .ctrl_name      = "internal",
303 };
304 #endif
305
306 static struct omap_board_config_kernel osk_config[] __initdata = {
307         { OMAP_TAG_UART,                &osk_uart_config },
308 #ifdef  CONFIG_OMAP_OSK_MISTRAL
309         { OMAP_TAG_LCD,                 &osk_lcd_config },
310 #endif
311 };
312
313 #ifdef  CONFIG_OMAP_OSK_MISTRAL
314
315 #include <linux/input.h>
316 #include <linux/i2c/at24.h>
317 #include <linux/spi/spi.h>
318 #include <linux/spi/ads7846.h>
319
320 #include <mach/keypad.h>
321
322 static struct at24_platform_data at24c04 = {
323         .byte_len       = SZ_4K / 8,
324         .page_size      = 16,
325 };
326
327 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
328         {
329                 /* NOTE:  powered from LCD supply */
330                 I2C_BOARD_INFO("24c04", 0x50),
331                 .platform_data  = &at24c04,
332         },
333         /* TODO when driver support is ready:
334          *  - optionally ov9640 camera sensor at 0x30
335          */
336 };
337
338 static const int osk_keymap[] = {
339         /* KEY(col, row, code) */
340         KEY(0, 0, KEY_F1),              /* SW4 */
341         KEY(0, 3, KEY_UP),              /* (sw2/up) */
342         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
343         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
344         KEY(2, 0, KEY_SPACE),           /* SW3 */
345         KEY(2, 1, KEY_ESC),             /* SW6 */
346         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
347         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
348         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
349         0
350 };
351
352 static struct omap_kp_platform_data osk_kp_data = {
353         .rows           = 8,
354         .cols           = 8,
355         .keymap         = (int *) osk_keymap,
356         .keymapsize     = ARRAY_SIZE(osk_keymap),
357         .delay          = 9,
358 };
359
360 static struct resource osk5912_kp_resources[] = {
361         [0] = {
362                 .start  = INT_KEYBOARD,
363                 .end    = INT_KEYBOARD,
364                 .flags  = IORESOURCE_IRQ,
365         },
366 };
367
368 static struct platform_device osk5912_kp_device = {
369         .name           = "omap-keypad",
370         .id             = -1,
371         .dev            = {
372                 .platform_data = &osk_kp_data,
373         },
374         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
375         .resource       = osk5912_kp_resources,
376 };
377
378 static struct omap_backlight_config mistral_bl_data = {
379         .default_intensity      = 0xa0,
380 };
381
382 static struct platform_device mistral_bl_device = {
383         .name           = "omap-bl",
384         .id             = -1,
385         .dev            = {
386                 .platform_data = &mistral_bl_data,
387         },
388 };
389
390 static struct platform_device osk5912_lcd_device = {
391         .name           = "lcd_osk",
392         .id             = -1,
393 };
394
395 static struct platform_device *mistral_devices[] __initdata = {
396         &osk5912_kp_device,
397         &mistral_bl_device,
398         &osk5912_lcd_device,
399 };
400
401 static int mistral_get_pendown_state(void)
402 {
403         return !gpio_get_value(4);
404 }
405
406 static const struct ads7846_platform_data mistral_ts_info = {
407         .model                  = 7846,
408         .vref_delay_usecs       = 100,  /* internal, no capacitor */
409         .x_plate_ohms           = 419,
410         .y_plate_ohms           = 486,
411         .get_pendown_state      = mistral_get_pendown_state,
412 };
413
414 static struct spi_board_info __initdata mistral_boardinfo[] = { {
415         /* MicroWire (bus 2) CS0 has an ads7846e */
416         .modalias               = "ads7846",
417         .platform_data          = &mistral_ts_info,
418         .irq                    = OMAP_GPIO_IRQ(4),
419         .max_speed_hz           = 120000 /* max sample rate at 3V */
420                                         * 26 /* command + data + overhead */,
421         .bus_num                = 2,
422         .chip_select            = 0,
423 } };
424
425 #ifdef  CONFIG_PM
426 static irqreturn_t
427 osk_mistral_wake_interrupt(int irq, void *ignored)
428 {
429         return IRQ_HANDLED;
430 }
431 #endif
432
433 static void __init osk_mistral_init(void)
434 {
435         /* NOTE:  we could actually tell if there's a Mistral board
436          * attached, e.g. by trying to read something from the ads7846.
437          * But this arch_init() code is too early for that, since we
438          * can't talk to the ads or even the i2c eeprom.
439          */
440
441         /* parallel camera interface */
442         omap_cfg_reg(J15_1610_CAM_LCLK);
443         omap_cfg_reg(J18_1610_CAM_D7);
444         omap_cfg_reg(J19_1610_CAM_D6);
445         omap_cfg_reg(J14_1610_CAM_D5);
446         omap_cfg_reg(K18_1610_CAM_D4);
447         omap_cfg_reg(K19_1610_CAM_D3);
448         omap_cfg_reg(K15_1610_CAM_D2);
449         omap_cfg_reg(K14_1610_CAM_D1);
450         omap_cfg_reg(L19_1610_CAM_D0);
451         omap_cfg_reg(L18_1610_CAM_VS);
452         omap_cfg_reg(L15_1610_CAM_HS);
453         omap_cfg_reg(M19_1610_CAM_RSTZ);
454         omap_cfg_reg(Y15_1610_CAM_OUTCLK);
455
456         /* serial camera interface */
457         omap_cfg_reg(H19_1610_CAM_EXCLK);
458         omap_cfg_reg(W13_1610_CCP_CLKM);
459         omap_cfg_reg(Y12_1610_CCP_CLKP);
460         /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
461         /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
462         omap_cfg_reg(W14_1610_CCP_DATAP);
463
464         /* CAM_PWDN */
465         if (gpio_request(11, "cam_pwdn") == 0) {
466                 omap_cfg_reg(N20_1610_GPIO11);
467                 gpio_direction_output(11, 0);
468         } else
469                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
470
471
472         /* omap_cfg_reg(P19_1610_GPIO6); */     /* BUSY */
473         gpio_request(6, "ts_busy");
474         gpio_direction_input(6);
475
476         omap_cfg_reg(P20_1610_GPIO4);   /* PENIRQ */
477         gpio_request(4, "ts_int");
478         gpio_direction_input(4);
479         set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
480
481         spi_register_board_info(mistral_boardinfo,
482                         ARRAY_SIZE(mistral_boardinfo));
483
484         /* the sideways button (SW1) is for use as a "wakeup" button
485          *
486          * NOTE:  The Mistral board has the wakeup button (SW1) wired
487          * to the LCD 3.3V rail, which is powered down during suspend.
488          * To allow this button to wake up the omap, work around this
489          * HW bug by rewiring SW1 to use the main 3.3V rail.
490          */
491         omap_cfg_reg(N15_1610_MPUIO2);
492         if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
493                 int ret = 0;
494                 int irq = gpio_to_irq(OMAP_MPUIO(2));
495
496                 gpio_direction_input(OMAP_MPUIO(2));
497                 set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
498 #ifdef  CONFIG_PM
499                 /* share the IRQ in case someone wants to use the
500                  * button for more than wakeup from system sleep.
501                  */
502                 ret = request_irq(irq,
503                                 &osk_mistral_wake_interrupt,
504                                 IRQF_SHARED, "mistral_wakeup",
505                                 &osk_mistral_wake_interrupt);
506                 if (ret != 0) {
507                         gpio_free(OMAP_MPUIO(2));
508                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
509                                 ret);
510                 } else
511                         enable_irq_wake(irq);
512 #endif
513         } else
514                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
515
516         /* LCD:  backlight, and power; power controls other devices on the
517          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
518          */
519         omap_cfg_reg(PWL);
520         if (gpio_request(2, "lcd_pwr") == 0)
521                 gpio_direction_output(2, 1);
522
523         i2c_register_board_info(1, mistral_i2c_board_info,
524                         ARRAY_SIZE(mistral_i2c_board_info));
525
526         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
527 }
528 #else
529 static void __init osk_mistral_init(void) { }
530 #endif
531
532 #define EMIFS_CS3_VAL   (0x88013141)
533
534 static void __init osk_init(void)
535 {
536         u32 l;
537
538         /* Workaround for wrong CS3 (NOR flash) timing
539          * There are some U-Boot versions out there which configure
540          * wrong CS3 memory timings. This mainly leads to CRC
541          * or similar errors if you use NOR flash (e.g. with JFFS2)
542          */
543         l = omap_readl(EMIFS_CCS(3));
544         if (l != EMIFS_CS3_VAL)
545                 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
546
547         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
548         osk_flash_resource.end += SZ_32M - 1;
549         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
550         omap_board_config = osk_config;
551         omap_board_config_size = ARRAY_SIZE(osk_config);
552
553         l = omap_readl(USB_TRANSCEIVER_CTRL);
554         l |= (3 << 1);
555         omap_writel(l, USB_TRANSCEIVER_CTRL);
556
557         omap_usb_init(&osk_usb_config);
558
559         /* irq for tps65010 chip */
560         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
561         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
562                 gpio_direction_input(OMAP_MPUIO(1));
563
564         omap_serial_init();
565         omap_register_i2c_bus(1, 400, osk_i2c_board_info,
566                               ARRAY_SIZE(osk_i2c_board_info));
567         osk_mistral_init();
568 }
569
570 static void __init osk_map_io(void)
571 {
572         omap1_map_common_io();
573 }
574
575 MACHINE_START(OMAP_OSK, "TI-OSK")
576         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
577         .phys_io        = 0xfff00000,
578         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
579         .boot_params    = 0x10000100,
580         .map_io         = osk_map_io,
581         .init_irq       = osk_init_irq,
582         .init_machine   = osk_init,
583         .timer          = &omap_timer,
584 MACHINE_END