Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
[pandora-kernel.git] / 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 #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
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
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
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         set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
280 }
281
282 static void __init osk_init_irq(void)
283 {
284         omap1_init_common_hw();
285         omap_init_irq();
286         omap_gpio_init();
287         osk_init_smc91x();
288         osk_init_cf();
289 }
290
291 static struct omap_usb_config osk_usb_config __initdata = {
292         /* has usb host connector (A) ... for development it can also
293          * be used, with a NONSTANDARD gender-bending cable/dongle, as
294          * a peripheral.
295          */
296 #ifdef  CONFIG_USB_GADGET_OMAP
297         .register_dev   = 1,
298         .hmc_mode       = 0,
299 #else
300         .register_host  = 1,
301         .hmc_mode       = 16,
302         .rwc            = 1,
303 #endif
304         .pins[0]        = 2,
305 };
306
307 #ifdef  CONFIG_OMAP_OSK_MISTRAL
308 static struct omap_lcd_config osk_lcd_config __initdata = {
309         .ctrl_name      = "internal",
310 };
311 #endif
312
313 static struct omap_board_config_kernel osk_config[] __initdata = {
314 #ifdef  CONFIG_OMAP_OSK_MISTRAL
315         { OMAP_TAG_LCD,                 &osk_lcd_config },
316 #endif
317 };
318
319 #ifdef  CONFIG_OMAP_OSK_MISTRAL
320
321 #include <linux/input.h>
322 #include <linux/i2c/at24.h>
323 #include <linux/spi/spi.h>
324 #include <linux/spi/ads7846.h>
325
326 #include <plat/keypad.h>
327
328 static struct at24_platform_data at24c04 = {
329         .byte_len       = SZ_4K / 8,
330         .page_size      = 16,
331 };
332
333 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
334         {
335                 /* NOTE:  powered from LCD supply */
336                 I2C_BOARD_INFO("24c04", 0x50),
337                 .platform_data  = &at24c04,
338         },
339         /* TODO when driver support is ready:
340          *  - optionally ov9640 camera sensor at 0x30
341          */
342 };
343
344 static const int osk_keymap[] = {
345         /* KEY(col, row, code) */
346         KEY(0, 0, KEY_F1),              /* SW4 */
347         KEY(0, 3, KEY_UP),              /* (sw2/up) */
348         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
349         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
350         KEY(2, 0, KEY_SPACE),           /* SW3 */
351         KEY(2, 1, KEY_ESC),             /* SW6 */
352         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
353         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
354         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
355         0
356 };
357
358 static struct omap_kp_platform_data osk_kp_data = {
359         .rows           = 8,
360         .cols           = 8,
361         .keymap         = (int *) osk_keymap,
362         .keymapsize     = ARRAY_SIZE(osk_keymap),
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
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
433 osk_mistral_wake_interrupt(int irq, void *ignored)
434 {
435         return IRQ_HANDLED;
436 }
437 #endif
438
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         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                 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
535 static void __init osk_mistral_init(void) { }
536 #endif
537
538 #define EMIFS_CS3_VAL   (0x88013141)
539
540 static void __init osk_init(void)
541 {
542         u32 l;
543
544         /* Workaround for wrong CS3 (NOR flash) timing
545          * There are some U-Boot versions out there which configure
546          * wrong CS3 memory timings. This mainly leads to CRC
547          * or similar errors if you use NOR flash (e.g. with JFFS2)
548          */
549         l = omap_readl(EMIFS_CCS(3));
550         if (l != EMIFS_CS3_VAL)
551                 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
552
553         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
554         osk_flash_resource.end += SZ_32M - 1;
555         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
556         omap_board_config = osk_config;
557         omap_board_config_size = ARRAY_SIZE(osk_config);
558
559         l = omap_readl(USB_TRANSCEIVER_CTRL);
560         l |= (3 << 1);
561         omap_writel(l, USB_TRANSCEIVER_CTRL);
562
563         omap1_usb_init(&osk_usb_config);
564
565         /* irq for tps65010 chip */
566         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
567         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
568                 gpio_direction_input(OMAP_MPUIO(1));
569
570         omap_serial_init();
571         omap_register_i2c_bus(1, 400, osk_i2c_board_info,
572                               ARRAY_SIZE(osk_i2c_board_info));
573         osk_mistral_init();
574 }
575
576 static void __init osk_map_io(void)
577 {
578         omap1_map_common_io();
579 }
580
581 MACHINE_START(OMAP_OSK, "TI-OSK")
582         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
583         .boot_params    = 0x10000100,
584         .map_io         = osk_map_io,
585         .reserve        = omap_reserve,
586         .init_irq       = osk_init_irq,
587         .init_machine   = osk_init,
588         .timer          = &omap_timer,
589 MACHINE_END