Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
[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 <asm/hardware.h>
43 #include <asm/gpio.h>
44
45 #include <asm/mach-types.h>
46 #include <asm/mach/arch.h>
47 #include <asm/mach/map.h>
48 #include <asm/mach/flash.h>
49
50 #include <asm/arch/usb.h>
51 #include <asm/arch/mux.h>
52 #include <asm/arch/tc.h>
53 #include <asm/arch/common.h>
54 #include <asm/arch/mcbsp.h>
55 #include <asm/arch/omap-alsa.h>
56
57 static struct mtd_partition osk_partitions[] = {
58         /* bootloader (U-Boot, etc) in first sector */
59         {
60               .name             = "bootloader",
61               .offset           = 0,
62               .size             = SZ_128K,
63               .mask_flags       = MTD_WRITEABLE, /* force read-only */
64         },
65         /* bootloader params in the next sector */
66         {
67               .name             = "params",
68               .offset           = MTDPART_OFS_APPEND,
69               .size             = SZ_128K,
70               .mask_flags       = 0,
71         }, {
72               .name             = "kernel",
73               .offset           = MTDPART_OFS_APPEND,
74               .size             = SZ_2M,
75               .mask_flags       = 0
76         }, {
77               .name             = "filesystem",
78               .offset           = MTDPART_OFS_APPEND,
79               .size             = MTDPART_SIZ_FULL,
80               .mask_flags       = 0
81         }
82 };
83
84 static struct flash_platform_data osk_flash_data = {
85         .map_name       = "cfi_probe",
86         .width          = 2,
87         .parts          = osk_partitions,
88         .nr_parts       = ARRAY_SIZE(osk_partitions),
89 };
90
91 static struct resource osk_flash_resource = {
92         /* this is on CS3, wherever it's mapped */
93         .flags          = IORESOURCE_MEM,
94 };
95
96 static struct platform_device osk5912_flash_device = {
97         .name           = "omapflash",
98         .id             = 0,
99         .dev            = {
100                 .platform_data  = &osk_flash_data,
101         },
102         .num_resources  = 1,
103         .resource       = &osk_flash_resource,
104 };
105
106 static struct resource osk5912_smc91x_resources[] = {
107         [0] = {
108                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
109                 .end    = OMAP_OSK_ETHR_START + 0xf,
110                 .flags  = IORESOURCE_MEM,
111         },
112         [1] = {
113                 .start  = OMAP_GPIO_IRQ(0),
114                 .end    = OMAP_GPIO_IRQ(0),
115                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
116         },
117 };
118
119 static struct platform_device osk5912_smc91x_device = {
120         .name           = "smc91x",
121         .id             = -1,
122         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
123         .resource       = osk5912_smc91x_resources,
124 };
125
126 static struct resource osk5912_cf_resources[] = {
127         [0] = {
128                 .start  = OMAP_GPIO_IRQ(62),
129                 .end    = OMAP_GPIO_IRQ(62),
130                 .flags  = IORESOURCE_IRQ,
131         },
132 };
133
134 static struct platform_device osk5912_cf_device = {
135         .name           = "omap_cf",
136         .id             = -1,
137         .dev = {
138                 .platform_data  = (void *) 2 /* CS2 */,
139         },
140         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
141         .resource       = osk5912_cf_resources,
142 };
143
144 #define DEFAULT_BITPERSAMPLE 16
145
146 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
147         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
148         .spcr1 = RINTM(3) | RRST,
149         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
150             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
151         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
152         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
153             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
154         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
155         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
156         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
157         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
158         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
159 };
160
161 static struct omap_alsa_codec_config alsa_config = {
162         .name                   = "OSK AIC23",
163         .mcbsp_regs_alsa        = &mcbsp_regs,
164         .codec_configure_dev    = NULL, /* aic23_configure, */
165         .codec_set_samplerate   = NULL, /* aic23_set_samplerate, */
166         .codec_clock_setup      = NULL, /* aic23_clock_setup, */
167         .codec_clock_on         = NULL, /* aic23_clock_on, */
168         .codec_clock_off        = NULL, /* aic23_clock_off, */
169         .get_default_samplerate = NULL, /* aic23_get_default_samplerate, */
170 };
171
172 static struct platform_device osk5912_mcbsp1_device = {
173         .name   = "omap_alsa_mcbsp",
174         .id     = 1,
175         .dev = {
176                 .platform_data  = &alsa_config,
177         },
178 };
179
180 static struct platform_device *osk5912_devices[] __initdata = {
181         &osk5912_flash_device,
182         &osk5912_smc91x_device,
183         &osk5912_cf_device,
184         &osk5912_mcbsp1_device,
185 };
186
187 static struct gpio_led tps_leds[] = {
188         /* NOTE:  D9 and D2 have hardware blink support.
189          * Also, D9 requires non-battery power.
190          */
191         { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", },
192         { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
193         { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
194                         .default_trigger = "heartbeat", },
195 };
196
197 static struct gpio_led_platform_data tps_leds_data = {
198         .num_leds       = 3,
199         .leds           = tps_leds,
200 };
201
202 static struct platform_device osk5912_tps_leds = {
203         .name                   = "leds-gpio",
204         .id                     = 0,
205         .dev.platform_data      = &tps_leds_data,
206 };
207
208 static int osk_tps_setup(struct i2c_client *client, void *context)
209 {
210         /* Set GPIO 1 HIGH to disable VBUS power supply;
211          * OHCI driver powers it up/down as needed.
212          */
213         gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
214         gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
215
216         /* Set GPIO 2 high so LED D3 is off by default */
217         tps65010_set_gpio_out_value(GPIO2, HIGH);
218
219         /* Set GPIO 3 low to take ethernet out of reset */
220         gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
221         gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
222
223         /* GPIO4 is VDD_DSP */
224         gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
225         gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
226         /* REVISIT if DSP support isn't configured, power it off ... */
227
228         /* Let LED1 (D9) blink; leds-gpio may override it */
229         tps65010_set_led(LED1, BLINK);
230
231         /* Set LED2 off by default */
232         tps65010_set_led(LED2, OFF);
233
234         /* Enable LOW_PWR handshake */
235         tps65010_set_low_pwr(ON);
236
237         /* Switch VLDO2 to 3.0V for AIC23 */
238         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
239                         | TPS_LDO1_ENABLE);
240
241         /* register these three LEDs */
242         osk5912_tps_leds.dev.parent = &client->dev;
243         platform_device_register(&osk5912_tps_leds);
244
245         return 0;
246 }
247
248 static struct tps65010_board tps_board = {
249         .base           = OSK_TPS_GPIO_BASE,
250         .outmask        = 0x0f,
251         .setup          = osk_tps_setup,
252 };
253
254 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
255         {
256                 I2C_BOARD_INFO("tps65010", 0x48),
257                 .type           = "tps65010",
258                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
259                 .platform_data  = &tps_board,
260
261         },
262         /* TODO when driver support is ready:
263          *  - aic23 audio chip at 0x1a
264          *  - on Mistral, 24c04 eeprom at 0x50
265          *  - optionally on Mistral, ov9640 camera sensor at 0x30
266          */
267 };
268
269 static void __init osk_init_smc91x(void)
270 {
271         if ((gpio_request(0, "smc_irq")) < 0) {
272                 printk("Error requesting gpio 0 for smc91x irq\n");
273                 return;
274         }
275
276         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
277         EMIFS_CCS(1) |= 0x3;
278 }
279
280 static void __init osk_init_cf(void)
281 {
282         omap_cfg_reg(M7_1610_GPIO62);
283         if ((gpio_request(62, "cf_irq")) < 0) {
284                 printk("Error requesting gpio 62 for CF irq\n");
285                 return;
286         }
287         /* the CF I/O IRQ is really active-low */
288         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
289 }
290
291 static void __init osk_init_irq(void)
292 {
293         omap1_init_common_hw();
294         omap_init_irq();
295         omap_gpio_init();
296         osk_init_smc91x();
297         osk_init_cf();
298 }
299
300 static struct omap_usb_config osk_usb_config __initdata = {
301         /* has usb host connector (A) ... for development it can also
302          * be used, with a NONSTANDARD gender-bending cable/dongle, as
303          * a peripheral.
304          */
305 #ifdef  CONFIG_USB_GADGET_OMAP
306         .register_dev   = 1,
307         .hmc_mode       = 0,
308 #else
309         .register_host  = 1,
310         .hmc_mode       = 16,
311         .rwc            = 1,
312 #endif
313         .pins[0]        = 2,
314 };
315
316 static struct omap_uart_config osk_uart_config __initdata = {
317         .enabled_uarts = (1 << 0),
318 };
319
320 #ifdef  CONFIG_OMAP_OSK_MISTRAL
321 static struct omap_lcd_config osk_lcd_config __initdata = {
322         .ctrl_name      = "internal",
323 };
324 #endif
325
326 static struct omap_board_config_kernel osk_config[] __initdata = {
327         { OMAP_TAG_USB,           &osk_usb_config },
328         { OMAP_TAG_UART,                &osk_uart_config },
329 #ifdef  CONFIG_OMAP_OSK_MISTRAL
330         { OMAP_TAG_LCD,                 &osk_lcd_config },
331 #endif
332 };
333
334 #ifdef  CONFIG_OMAP_OSK_MISTRAL
335
336 #include <linux/input.h>
337 #include <linux/spi/spi.h>
338 #include <linux/spi/ads7846.h>
339
340 #include <asm/arch/keypad.h>
341
342 static const int osk_keymap[] = {
343         /* KEY(col, row, code) */
344         KEY(0, 0, KEY_F1),              /* SW4 */
345         KEY(0, 3, KEY_UP),              /* (sw2/up) */
346         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
347         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
348         KEY(2, 0, KEY_SPACE),           /* SW3 */
349         KEY(2, 1, KEY_ESC),             /* SW6 */
350         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
351         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
352         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
353         0
354 };
355
356 static struct omap_kp_platform_data osk_kp_data = {
357         .rows           = 8,
358         .cols           = 8,
359         .keymap         = (int *) osk_keymap,
360         .keymapsize     = ARRAY_SIZE(osk_keymap),
361         .delay          = 9,
362 };
363
364 static struct resource osk5912_kp_resources[] = {
365         [0] = {
366                 .start  = INT_KEYBOARD,
367                 .end    = INT_KEYBOARD,
368                 .flags  = IORESOURCE_IRQ,
369         },
370 };
371
372 static struct platform_device osk5912_kp_device = {
373         .name           = "omap-keypad",
374         .id             = -1,
375         .dev            = {
376                 .platform_data = &osk_kp_data,
377         },
378         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
379         .resource       = osk5912_kp_resources,
380 };
381
382 static struct omap_backlight_config mistral_bl_data = {
383         .default_intensity      = 0xa0,
384 };
385
386 static struct platform_device mistral_bl_device = {
387         .name           = "omap-bl",
388         .id             = -1,
389         .dev            = {
390                 .platform_data = &mistral_bl_data,
391         },
392 };
393
394 static struct platform_device osk5912_lcd_device = {
395         .name           = "lcd_osk",
396         .id             = -1,
397 };
398
399 static struct platform_device *mistral_devices[] __initdata = {
400         &osk5912_kp_device,
401         &mistral_bl_device,
402         &osk5912_lcd_device,
403 };
404
405 static int mistral_get_pendown_state(void)
406 {
407         return !gpio_get_value(4);
408 }
409
410 static const struct ads7846_platform_data mistral_ts_info = {
411         .model                  = 7846,
412         .vref_delay_usecs       = 100,  /* internal, no capacitor */
413         .x_plate_ohms           = 419,
414         .y_plate_ohms           = 486,
415         .get_pendown_state      = mistral_get_pendown_state,
416 };
417
418 static struct spi_board_info __initdata mistral_boardinfo[] = { {
419         /* MicroWire (bus 2) CS0 has an ads7846e */
420         .modalias               = "ads7846",
421         .platform_data          = &mistral_ts_info,
422         .irq                    = OMAP_GPIO_IRQ(4),
423         .max_speed_hz           = 120000 /* max sample rate at 3V */
424                                         * 26 /* command + data + overhead */,
425         .bus_num                = 2,
426         .chip_select            = 0,
427 } };
428
429 #ifdef  CONFIG_PM
430 static irqreturn_t
431 osk_mistral_wake_interrupt(int irq, void *ignored)
432 {
433         return IRQ_HANDLED;
434 }
435 #endif
436
437 static void __init osk_mistral_init(void)
438 {
439         /* NOTE:  we could actually tell if there's a Mistral board
440          * attached, e.g. by trying to read something from the ads7846.
441          * But this arch_init() code is too early for that, since we
442          * can't talk to the ads or even the i2c eeprom.
443          */
444
445         /* parallel camera interface */
446         omap_cfg_reg(J15_1610_CAM_LCLK);
447         omap_cfg_reg(J18_1610_CAM_D7);
448         omap_cfg_reg(J19_1610_CAM_D6);
449         omap_cfg_reg(J14_1610_CAM_D5);
450         omap_cfg_reg(K18_1610_CAM_D4);
451         omap_cfg_reg(K19_1610_CAM_D3);
452         omap_cfg_reg(K15_1610_CAM_D2);
453         omap_cfg_reg(K14_1610_CAM_D1);
454         omap_cfg_reg(L19_1610_CAM_D0);
455         omap_cfg_reg(L18_1610_CAM_VS);
456         omap_cfg_reg(L15_1610_CAM_HS);
457         omap_cfg_reg(M19_1610_CAM_RSTZ);
458         omap_cfg_reg(Y15_1610_CAM_OUTCLK);
459
460         /* serial camera interface */
461         omap_cfg_reg(H19_1610_CAM_EXCLK);
462         omap_cfg_reg(W13_1610_CCP_CLKM);
463         omap_cfg_reg(Y12_1610_CCP_CLKP);
464         /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
465         /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
466         omap_cfg_reg(W14_1610_CCP_DATAP);
467
468         /* CAM_PWDN */
469         if (gpio_request(11, "cam_pwdn") == 0) {
470                 omap_cfg_reg(N20_1610_GPIO11);
471                 gpio_direction_output(11, 0);
472         } else
473                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
474
475
476         /* omap_cfg_reg(P19_1610_GPIO6); */     /* BUSY */
477         gpio_request(6, "ts_busy");
478         gpio_direction_input(6);
479
480         omap_cfg_reg(P20_1610_GPIO4);   /* PENIRQ */
481         gpio_request(4, "ts_int");
482         gpio_direction_input(4);
483         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
484
485         spi_register_board_info(mistral_boardinfo,
486                         ARRAY_SIZE(mistral_boardinfo));
487
488         /* the sideways button (SW1) is for use as a "wakeup" button */
489         omap_cfg_reg(N15_1610_MPUIO2);
490         if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
491                 int ret = 0;
492
493                 gpio_direction_input(OMAP_MPUIO(2));
494                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
495 #ifdef  CONFIG_PM
496                 /* share the IRQ in case someone wants to use the
497                  * button for more than wakeup from system sleep.
498                  */
499                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
500                                 &osk_mistral_wake_interrupt,
501                                 IRQF_SHARED, "mistral_wakeup",
502                                 &osk_mistral_wake_interrupt);
503                 if (ret != 0) {
504                         gpio_free(OMAP_MPUIO(2));
505                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
506                                 ret);
507                 } else
508                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
509 #endif
510         } else
511                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
512
513         /* LCD:  backlight, and power; power controls other devices on the
514          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
515          */
516         omap_cfg_reg(PWL);
517         if (gpio_request(2, "lcd_pwr") == 0)
518                 gpio_direction_output(2, 1);
519
520         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
521 }
522 #else
523 static void __init osk_mistral_init(void) { }
524 #endif
525
526 #define EMIFS_CS3_VAL   (0x88013141)
527
528 static void __init osk_init(void)
529 {
530         /* Workaround for wrong CS3 (NOR flash) timing
531          * There are some U-Boot versions out there which configure
532          * wrong CS3 memory timings. This mainly leads to CRC
533          * or similar errors if you use NOR flash (e.g. with JFFS2)
534          */
535         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
536                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
537
538         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
539         osk_flash_resource.end += SZ_32M - 1;
540         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
541         omap_board_config = osk_config;
542         omap_board_config_size = ARRAY_SIZE(osk_config);
543         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
544
545         /* irq for tps65010 chip */
546         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
547         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
548                 gpio_direction_input(OMAP_MPUIO(1));
549
550         omap_serial_init();
551         omap_register_i2c_bus(1, 400, osk_i2c_board_info,
552                               ARRAY_SIZE(osk_i2c_board_info));
553         osk_mistral_init();
554 }
555
556 static void __init osk_map_io(void)
557 {
558         omap1_map_common_io();
559 }
560
561 MACHINE_START(OMAP_OSK, "TI-OSK")
562         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
563         .phys_io        = 0xfff00000,
564         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
565         .boot_params    = 0x10000100,
566         .map_io         = osk_map_io,
567         .init_irq       = osk_init_irq,
568         .init_machine   = osk_init,
569         .timer          = &omap_timer,
570 MACHINE_END