Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
[sfrench/cifs-2.6.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
41 #include <linux/i2c/tps65010.h>
42
43 #include <mach/hardware.h>
44 #include <asm/gpio.h>
45
46 #include <asm/mach-types.h>
47 #include <asm/mach/arch.h>
48 #include <asm/mach/map.h>
49 #include <asm/mach/flash.h>
50
51 #include <plat/usb.h>
52 #include <plat/mux.h>
53 #include <plat/tc.h>
54 #include <plat/common.h>
55
56 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
57 #define OMAP_OSK_ETHR_START             0x04800300
58
59 /* TPS65010 has four GPIOs.  nPG and LED2 can be treated like GPIOs with
60  * alternate pin configurations for hardware-controlled blinking.
61  */
62 #define OSK_TPS_GPIO_BASE               (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
63 #       define OSK_TPS_GPIO_USB_PWR_EN  (OSK_TPS_GPIO_BASE + 0)
64 #       define OSK_TPS_GPIO_LED_D3      (OSK_TPS_GPIO_BASE + 1)
65 #       define OSK_TPS_GPIO_LAN_RESET   (OSK_TPS_GPIO_BASE + 2)
66 #       define OSK_TPS_GPIO_DSP_PWR_EN  (OSK_TPS_GPIO_BASE + 3)
67 #       define OSK_TPS_GPIO_LED_D9      (OSK_TPS_GPIO_BASE + 4)
68 #       define OSK_TPS_GPIO_LED_D2      (OSK_TPS_GPIO_BASE + 5)
69
70 static struct mtd_partition osk_partitions[] = {
71         /* bootloader (U-Boot, etc) in first sector */
72         {
73               .name             = "bootloader",
74               .offset           = 0,
75               .size             = SZ_128K,
76               .mask_flags       = MTD_WRITEABLE, /* force read-only */
77         },
78         /* bootloader params in the next sector */
79         {
80               .name             = "params",
81               .offset           = MTDPART_OFS_APPEND,
82               .size             = SZ_128K,
83               .mask_flags       = 0,
84         }, {
85               .name             = "kernel",
86               .offset           = MTDPART_OFS_APPEND,
87               .size             = SZ_2M,
88               .mask_flags       = 0
89         }, {
90               .name             = "filesystem",
91               .offset           = MTDPART_OFS_APPEND,
92               .size             = MTDPART_SIZ_FULL,
93               .mask_flags       = 0
94         }
95 };
96
97 static struct flash_platform_data osk_flash_data = {
98         .map_name       = "cfi_probe",
99         .width          = 2,
100         .parts          = osk_partitions,
101         .nr_parts       = ARRAY_SIZE(osk_partitions),
102 };
103
104 static struct resource osk_flash_resource = {
105         /* this is on CS3, wherever it's mapped */
106         .flags          = IORESOURCE_MEM,
107 };
108
109 static struct platform_device osk5912_flash_device = {
110         .name           = "omapflash",
111         .id             = 0,
112         .dev            = {
113                 .platform_data  = &osk_flash_data,
114         },
115         .num_resources  = 1,
116         .resource       = &osk_flash_resource,
117 };
118
119 static struct smc91x_platdata osk5912_smc91x_info = {
120         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
121         .leda   = RPC_LED_100_10,
122         .ledb   = RPC_LED_TX_RX,
123 };
124
125 static struct resource osk5912_smc91x_resources[] = {
126         [0] = {
127                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
128                 .end    = OMAP_OSK_ETHR_START + 0xf,
129                 .flags  = IORESOURCE_MEM,
130         },
131         [1] = {
132                 .start  = OMAP_GPIO_IRQ(0),
133                 .end    = OMAP_GPIO_IRQ(0),
134                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
135         },
136 };
137
138 static 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
148 static struct resource osk5912_cf_resources[] = {
149         [0] = {
150                 .start  = OMAP_GPIO_IRQ(62),
151                 .end    = OMAP_GPIO_IRQ(62),
152                 .flags  = IORESOURCE_IRQ,
153         },
154 };
155
156 static struct platform_device osk5912_cf_device = {
157         .name           = "omap_cf",
158         .id             = -1,
159         .dev = {
160                 .platform_data  = (void *) 2 /* CS2 */,
161         },
162         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
163         .resource       = osk5912_cf_resources,
164 };
165
166 static struct platform_device *osk5912_devices[] __initdata = {
167         &osk5912_flash_device,
168         &osk5912_smc91x_device,
169         &osk5912_cf_device,
170 };
171
172 static struct gpio_led tps_leds[] = {
173         /* NOTE:  D9 and D2 have hardware blink support.
174          * Also, D9 requires non-battery power.
175          */
176         { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
177                         .default_trigger = "ide-disk", },
178         { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
179         { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
180                         .default_trigger = "heartbeat", },
181 };
182
183 static struct gpio_led_platform_data tps_leds_data = {
184         .num_leds       = 3,
185         .leds           = tps_leds,
186 };
187
188 static struct platform_device osk5912_tps_leds = {
189         .name                   = "leds-gpio",
190         .id                     = 0,
191         .dev.platform_data      = &tps_leds_data,
192 };
193
194 static int osk_tps_setup(struct i2c_client *client, void *context)
195 {
196         /* Set GPIO 1 HIGH to disable VBUS power supply;
197          * OHCI driver powers it up/down as needed.
198          */
199         gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
200         gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
201
202         /* Set GPIO 2 high so LED D3 is off by default */
203         tps65010_set_gpio_out_value(GPIO2, HIGH);
204
205         /* Set GPIO 3 low to take ethernet out of reset */
206         gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
207         gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
208
209         /* GPIO4 is VDD_DSP */
210         gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
211         gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
212         /* REVISIT if DSP support isn't configured, power it off ... */
213
214         /* Let LED1 (D9) blink; leds-gpio may override it */
215         tps65010_set_led(LED1, BLINK);
216
217         /* Set LED2 off by default */
218         tps65010_set_led(LED2, OFF);
219
220         /* Enable LOW_PWR handshake */
221         tps65010_set_low_pwr(ON);
222
223         /* Switch VLDO2 to 3.0V for AIC23 */
224         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
225                         | TPS_LDO1_ENABLE);
226
227         /* register these three LEDs */
228         osk5912_tps_leds.dev.parent = &client->dev;
229         platform_device_register(&osk5912_tps_leds);
230
231         return 0;
232 }
233
234 static struct tps65010_board tps_board = {
235         .base           = OSK_TPS_GPIO_BASE,
236         .outmask        = 0x0f,
237         .setup          = osk_tps_setup,
238 };
239
240 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
241         {
242                 I2C_BOARD_INFO("tps65010", 0x48),
243                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
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
255 static 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
270 static 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         set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
279 }
280
281 static void __init osk_init_irq(void)
282 {
283         omap1_init_common_hw();
284         omap_init_irq();
285         omap_gpio_init();
286         osk_init_smc91x();
287         osk_init_cf();
288 }
289
290 static struct omap_usb_config osk_usb_config __initdata = {
291         /* has usb host connector (A) ... for development it can also
292          * be used, with a NONSTANDARD gender-bending cable/dongle, as
293          * a peripheral.
294          */
295 #ifdef  CONFIG_USB_GADGET_OMAP
296         .register_dev   = 1,
297         .hmc_mode       = 0,
298 #else
299         .register_host  = 1,
300         .hmc_mode       = 16,
301         .rwc            = 1,
302 #endif
303         .pins[0]        = 2,
304 };
305
306 #ifdef  CONFIG_OMAP_OSK_MISTRAL
307 static struct omap_lcd_config osk_lcd_config __initdata = {
308         .ctrl_name      = "internal",
309 };
310 #endif
311
312 static struct omap_board_config_kernel osk_config[] __initdata = {
313 #ifdef  CONFIG_OMAP_OSK_MISTRAL
314         { OMAP_TAG_LCD,                 &osk_lcd_config },
315 #endif
316 };
317
318 #ifdef  CONFIG_OMAP_OSK_MISTRAL
319
320 #include <linux/input.h>
321 #include <linux/i2c/at24.h>
322 #include <linux/spi/spi.h>
323 #include <linux/spi/ads7846.h>
324
325 #include <plat/keypad.h>
326
327 static struct at24_platform_data at24c04 = {
328         .byte_len       = SZ_4K / 8,
329         .page_size      = 16,
330 };
331
332 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
333         {
334                 /* NOTE:  powered from LCD supply */
335                 I2C_BOARD_INFO("24c04", 0x50),
336                 .platform_data  = &at24c04,
337         },
338         /* TODO when driver support is ready:
339          *  - optionally ov9640 camera sensor at 0x30
340          */
341 };
342
343 static const int osk_keymap[] = {
344         /* KEY(col, row, code) */
345         KEY(0, 0, KEY_F1),              /* SW4 */
346         KEY(0, 3, KEY_UP),              /* (sw2/up) */
347         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
348         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
349         KEY(2, 0, KEY_SPACE),           /* SW3 */
350         KEY(2, 1, KEY_ESC),             /* SW6 */
351         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
352         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
353         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
354         0
355 };
356
357 static struct omap_kp_platform_data osk_kp_data = {
358         .rows           = 8,
359         .cols           = 8,
360         .keymap         = (int *) osk_keymap,
361         .keymapsize     = ARRAY_SIZE(osk_keymap),
362         .delay          = 9,
363 };
364
365 static struct resource osk5912_kp_resources[] = {
366         [0] = {
367                 .start  = INT_KEYBOARD,
368                 .end    = INT_KEYBOARD,
369                 .flags  = IORESOURCE_IRQ,
370         },
371 };
372
373 static struct platform_device osk5912_kp_device = {
374         .name           = "omap-keypad",
375         .id             = -1,
376         .dev            = {
377                 .platform_data = &osk_kp_data,
378         },
379         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
380         .resource       = osk5912_kp_resources,
381 };
382
383 static struct omap_backlight_config mistral_bl_data = {
384         .default_intensity      = 0xa0,
385 };
386
387 static struct platform_device mistral_bl_device = {
388         .name           = "omap-bl",
389         .id             = -1,
390         .dev            = {
391                 .platform_data = &mistral_bl_data,
392         },
393 };
394
395 static struct platform_device osk5912_lcd_device = {
396         .name           = "lcd_osk",
397         .id             = -1,
398 };
399
400 static struct platform_device *mistral_devices[] __initdata = {
401         &osk5912_kp_device,
402         &mistral_bl_device,
403         &osk5912_lcd_device,
404 };
405
406 static int mistral_get_pendown_state(void)
407 {
408         return !gpio_get_value(4);
409 }
410
411 static const struct ads7846_platform_data mistral_ts_info = {
412         .model                  = 7846,
413         .vref_delay_usecs       = 100,  /* internal, no capacitor */
414         .x_plate_ohms           = 419,
415         .y_plate_ohms           = 486,
416         .get_pendown_state      = mistral_get_pendown_state,
417 };
418
419 static struct spi_board_info __initdata mistral_boardinfo[] = { {
420         /* MicroWire (bus 2) CS0 has an ads7846e */
421         .modalias               = "ads7846",
422         .platform_data          = &mistral_ts_info,
423         .irq                    = OMAP_GPIO_IRQ(4),
424         .max_speed_hz           = 120000 /* max sample rate at 3V */
425                                         * 26 /* command + data + overhead */,
426         .bus_num                = 2,
427         .chip_select            = 0,
428 } };
429
430 #ifdef  CONFIG_PM
431 static irqreturn_t
432 osk_mistral_wake_interrupt(int irq, void *ignored)
433 {
434         return IRQ_HANDLED;
435 }
436 #endif
437
438 static void __init osk_mistral_init(void)
439 {
440         /* NOTE:  we could actually tell if there's a Mistral board
441          * attached, e.g. by trying to read something from the ads7846.
442          * But this arch_init() code is too early for that, since we
443          * can't talk to the ads or even the i2c eeprom.
444          */
445
446         /* parallel camera interface */
447         omap_cfg_reg(J15_1610_CAM_LCLK);
448         omap_cfg_reg(J18_1610_CAM_D7);
449         omap_cfg_reg(J19_1610_CAM_D6);
450         omap_cfg_reg(J14_1610_CAM_D5);
451         omap_cfg_reg(K18_1610_CAM_D4);
452         omap_cfg_reg(K19_1610_CAM_D3);
453         omap_cfg_reg(K15_1610_CAM_D2);
454         omap_cfg_reg(K14_1610_CAM_D1);
455         omap_cfg_reg(L19_1610_CAM_D0);
456         omap_cfg_reg(L18_1610_CAM_VS);
457         omap_cfg_reg(L15_1610_CAM_HS);
458         omap_cfg_reg(M19_1610_CAM_RSTZ);
459         omap_cfg_reg(Y15_1610_CAM_OUTCLK);
460
461         /* serial camera interface */
462         omap_cfg_reg(H19_1610_CAM_EXCLK);
463         omap_cfg_reg(W13_1610_CCP_CLKM);
464         omap_cfg_reg(Y12_1610_CCP_CLKP);
465         /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
466         /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
467         omap_cfg_reg(W14_1610_CCP_DATAP);
468
469         /* CAM_PWDN */
470         if (gpio_request(11, "cam_pwdn") == 0) {
471                 omap_cfg_reg(N20_1610_GPIO11);
472                 gpio_direction_output(11, 0);
473         } else
474                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
475
476
477         /* omap_cfg_reg(P19_1610_GPIO6); */     /* BUSY */
478         gpio_request(6, "ts_busy");
479         gpio_direction_input(6);
480
481         omap_cfg_reg(P20_1610_GPIO4);   /* PENIRQ */
482         gpio_request(4, "ts_int");
483         gpio_direction_input(4);
484         set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
485
486         spi_register_board_info(mistral_boardinfo,
487                         ARRAY_SIZE(mistral_boardinfo));
488
489         /* the sideways button (SW1) is for use as a "wakeup" button
490          *
491          * NOTE:  The Mistral board has the wakeup button (SW1) wired
492          * to the LCD 3.3V rail, which is powered down during suspend.
493          * To allow this button to wake up the omap, work around this
494          * HW bug by rewiring SW1 to use the main 3.3V rail.
495          */
496         omap_cfg_reg(N15_1610_MPUIO2);
497         if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
498                 int ret = 0;
499                 int irq = gpio_to_irq(OMAP_MPUIO(2));
500
501                 gpio_direction_input(OMAP_MPUIO(2));
502                 set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
503 #ifdef  CONFIG_PM
504                 /* share the IRQ in case someone wants to use the
505                  * button for more than wakeup from system sleep.
506                  */
507                 ret = request_irq(irq,
508                                 &osk_mistral_wake_interrupt,
509                                 IRQF_SHARED, "mistral_wakeup",
510                                 &osk_mistral_wake_interrupt);
511                 if (ret != 0) {
512                         gpio_free(OMAP_MPUIO(2));
513                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
514                                 ret);
515                 } else
516                         enable_irq_wake(irq);
517 #endif
518         } else
519                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
520
521         /* LCD:  backlight, and power; power controls other devices on the
522          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
523          */
524         omap_cfg_reg(PWL);
525         if (gpio_request(2, "lcd_pwr") == 0)
526                 gpio_direction_output(2, 1);
527
528         i2c_register_board_info(1, mistral_i2c_board_info,
529                         ARRAY_SIZE(mistral_i2c_board_info));
530
531         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
532 }
533 #else
534 static void __init osk_mistral_init(void) { }
535 #endif
536
537 #define EMIFS_CS3_VAL   (0x88013141)
538
539 static void __init osk_init(void)
540 {
541         u32 l;
542
543         /* Workaround for wrong CS3 (NOR flash) timing
544          * There are some U-Boot versions out there which configure
545          * wrong CS3 memory timings. This mainly leads to CRC
546          * or similar errors if you use NOR flash (e.g. with JFFS2)
547          */
548         l = omap_readl(EMIFS_CCS(3));
549         if (l != EMIFS_CS3_VAL)
550                 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
551
552         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
553         osk_flash_resource.end += SZ_32M - 1;
554         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
555         omap_board_config = osk_config;
556         omap_board_config_size = ARRAY_SIZE(osk_config);
557
558         l = omap_readl(USB_TRANSCEIVER_CTRL);
559         l |= (3 << 1);
560         omap_writel(l, USB_TRANSCEIVER_CTRL);
561
562         omap_usb_init(&osk_usb_config);
563
564         /* irq for tps65010 chip */
565         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
566         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
567                 gpio_direction_input(OMAP_MPUIO(1));
568
569         omap_serial_init();
570         omap_register_i2c_bus(1, 400, osk_i2c_board_info,
571                               ARRAY_SIZE(osk_i2c_board_info));
572         osk_mistral_init();
573 }
574
575 static void __init osk_map_io(void)
576 {
577         omap1_map_common_io();
578 }
579
580 MACHINE_START(OMAP_OSK, "TI-OSK")
581         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
582         .phys_io        = 0xfff00000,
583         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
584         .boot_params    = 0x10000100,
585         .map_io         = osk_map_io,
586         .init_irq       = osk_init_irq,
587         .init_machine   = osk_init,
588         .timer          = &omap_timer,
589 MACHINE_END