Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
[linux-2.6] / arch / arm / mach-pxa / em-x270.c
1 /*
2  * Support for CompuLab EM-X270 platform
3  *
4  * Copyright (C) 2007, 2008 CompuLab, Ltd.
5  * Author: Mike Rapoport <mike@compulab.co.il>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11
12 #include <linux/irq.h>
13 #include <linux/platform_device.h>
14
15 #include <linux/dm9000.h>
16 #include <linux/rtc-v3020.h>
17 #include <linux/mtd/nand.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/input.h>
20 #include <linux/gpio_keys.h>
21 #include <linux/gpio.h>
22
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25
26 #include <mach/mfp-pxa27x.h>
27 #include <mach/pxa-regs.h>
28 #include <mach/pxa27x-udc.h>
29 #include <mach/audio.h>
30 #include <mach/pxafb.h>
31 #include <mach/ohci.h>
32 #include <mach/mmc.h>
33 #include <mach/pxa27x_keypad.h>
34
35 #include "generic.h"
36
37 /* GPIO IRQ usage */
38 #define GPIO41_ETHIRQ           (41)
39 #define GPIO13_MMC_CD           (13)
40 #define EM_X270_ETHIRQ          IRQ_GPIO(GPIO41_ETHIRQ)
41 #define EM_X270_MMC_CD          IRQ_GPIO(GPIO13_MMC_CD)
42
43 /* NAND control GPIOs */
44 #define GPIO11_NAND_CS  (11)
45 #define GPIO56_NAND_RB  (56)
46
47 static unsigned long em_x270_pin_config[] = {
48         /* AC'97 */
49         GPIO28_AC97_BITCLK,
50         GPIO29_AC97_SDATA_IN_0,
51         GPIO30_AC97_SDATA_OUT,
52         GPIO31_AC97_SYNC,
53         GPIO98_AC97_SYSCLK,
54         GPIO113_AC97_nRESET,
55
56         /* BTUART */
57         GPIO42_BTUART_RXD,
58         GPIO43_BTUART_TXD,
59         GPIO44_BTUART_CTS,
60         GPIO45_BTUART_RTS,
61
62         /* STUART */
63         GPIO46_STUART_RXD,
64         GPIO47_STUART_TXD,
65
66         /* MCI controller */
67         GPIO32_MMC_CLK,
68         GPIO112_MMC_CMD,
69         GPIO92_MMC_DAT_0,
70         GPIO109_MMC_DAT_1,
71         GPIO110_MMC_DAT_2,
72         GPIO111_MMC_DAT_3,
73
74         /* LCD */
75         GPIO58_LCD_LDD_0,
76         GPIO59_LCD_LDD_1,
77         GPIO60_LCD_LDD_2,
78         GPIO61_LCD_LDD_3,
79         GPIO62_LCD_LDD_4,
80         GPIO63_LCD_LDD_5,
81         GPIO64_LCD_LDD_6,
82         GPIO65_LCD_LDD_7,
83         GPIO66_LCD_LDD_8,
84         GPIO67_LCD_LDD_9,
85         GPIO68_LCD_LDD_10,
86         GPIO69_LCD_LDD_11,
87         GPIO70_LCD_LDD_12,
88         GPIO71_LCD_LDD_13,
89         GPIO72_LCD_LDD_14,
90         GPIO73_LCD_LDD_15,
91         GPIO74_LCD_FCLK,
92         GPIO75_LCD_LCLK,
93         GPIO76_LCD_PCLK,
94         GPIO77_LCD_BIAS,
95
96         /* QCI */
97         GPIO84_CIF_FV,
98         GPIO25_CIF_LV,
99         GPIO53_CIF_MCLK,
100         GPIO54_CIF_PCLK,
101         GPIO81_CIF_DD_0,
102         GPIO55_CIF_DD_1,
103         GPIO51_CIF_DD_2,
104         GPIO50_CIF_DD_3,
105         GPIO52_CIF_DD_4,
106         GPIO48_CIF_DD_5,
107         GPIO17_CIF_DD_6,
108         GPIO12_CIF_DD_7,
109
110         /* I2C */
111         GPIO117_I2C_SCL,
112         GPIO118_I2C_SDA,
113
114         /* Keypad */
115         GPIO100_KP_MKIN_0       | WAKEUP_ON_LEVEL_HIGH,
116         GPIO101_KP_MKIN_1       | WAKEUP_ON_LEVEL_HIGH,
117         GPIO102_KP_MKIN_2       | WAKEUP_ON_LEVEL_HIGH,
118         GPIO34_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
119         GPIO39_KP_MKIN_4        | WAKEUP_ON_LEVEL_HIGH,
120         GPIO99_KP_MKIN_5        | WAKEUP_ON_LEVEL_HIGH,
121         GPIO91_KP_MKIN_6        | WAKEUP_ON_LEVEL_HIGH,
122         GPIO36_KP_MKIN_7        | WAKEUP_ON_LEVEL_HIGH,
123         GPIO103_KP_MKOUT_0,
124         GPIO104_KP_MKOUT_1,
125         GPIO105_KP_MKOUT_2,
126         GPIO106_KP_MKOUT_3,
127         GPIO107_KP_MKOUT_4,
128         GPIO108_KP_MKOUT_5,
129         GPIO96_KP_MKOUT_6,
130         GPIO22_KP_MKOUT_7,
131
132         /* SSP1 */
133         GPIO26_SSP1_RXD,
134         GPIO23_SSP1_SCLK,
135         GPIO24_SSP1_SFRM,
136         GPIO57_SSP1_TXD,
137
138         /* SSP2 */
139         GPIO19_SSP2_SCLK,
140         GPIO14_SSP2_SFRM,
141         GPIO89_SSP2_TXD,
142         GPIO88_SSP2_RXD,
143
144         /* SDRAM and local bus */
145         GPIO15_nCS_1,
146         GPIO78_nCS_2,
147         GPIO79_nCS_3,
148         GPIO80_nCS_4,
149         GPIO49_nPWE,
150         GPIO18_RDY,
151
152         /* GPIO */
153         GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
154
155         /* power controls */
156         GPIO20_GPIO     | MFP_LPM_DRIVE_LOW,    /* GPRS_PWEN */
157         GPIO115_GPIO    | MFP_LPM_DRIVE_LOW,    /* WLAN_PWEN */
158
159         /* NAND controls */
160         GPIO11_GPIO     | MFP_LPM_DRIVE_HIGH,   /* NAND CE# */
161         GPIO56_GPIO,                            /* NAND Ready/Busy */
162
163         /* interrupts */
164         GPIO13_GPIO,    /* MMC card detect */
165         GPIO41_GPIO,    /* DM9000 interrupt */
166 };
167
168 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
169 static struct resource em_x270_dm9000_resource[] = {
170         [0] = {
171                 .start = PXA_CS2_PHYS,
172                 .end   = PXA_CS2_PHYS + 3,
173                 .flags = IORESOURCE_MEM,
174         },
175         [1] = {
176                 .start = PXA_CS2_PHYS + 8,
177                 .end   = PXA_CS2_PHYS + 8 + 0x3f,
178                 .flags = IORESOURCE_MEM,
179         },
180         [2] = {
181                 .start = EM_X270_ETHIRQ,
182                 .end   = EM_X270_ETHIRQ,
183                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
184         }
185 };
186
187 static struct dm9000_plat_data em_x270_dm9000_platdata = {
188         .flags          = DM9000_PLATF_32BITONLY,
189 };
190
191 static struct platform_device em_x270_dm9000 = {
192         .name           = "dm9000",
193         .id             = 0,
194         .num_resources  = ARRAY_SIZE(em_x270_dm9000_resource),
195         .resource       = em_x270_dm9000_resource,
196         .dev            = {
197                 .platform_data = &em_x270_dm9000_platdata,
198         }
199 };
200
201 static void __init em_x270_init_dm9000(void)
202 {
203         platform_device_register(&em_x270_dm9000);
204 }
205 #else
206 static inline void em_x270_init_dm9000(void) {}
207 #endif
208
209 /* V3020 RTC */
210 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
211 static struct resource em_x270_v3020_resource[] = {
212         [0] = {
213                 .start = PXA_CS4_PHYS,
214                 .end   = PXA_CS4_PHYS + 3,
215                 .flags = IORESOURCE_MEM,
216         },
217 };
218
219 static struct v3020_platform_data em_x270_v3020_platdata = {
220         .leftshift = 0,
221 };
222
223 static struct platform_device em_x270_rtc = {
224         .name           = "v3020",
225         .num_resources  = ARRAY_SIZE(em_x270_v3020_resource),
226         .resource       = em_x270_v3020_resource,
227         .id             = -1,
228         .dev            = {
229                 .platform_data = &em_x270_v3020_platdata,
230         }
231 };
232
233 static void __init em_x270_init_rtc(void)
234 {
235         platform_device_register(&em_x270_rtc);
236 }
237 #else
238 static inline void em_x270_init_rtc(void) {}
239 #endif
240
241 /* NAND flash */
242 #if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
243 static inline void nand_cs_on(void)
244 {
245         gpio_set_value(GPIO11_NAND_CS, 0);
246 }
247
248 static void nand_cs_off(void)
249 {
250         dsb();
251
252         gpio_set_value(GPIO11_NAND_CS, 1);
253 }
254
255 /* hardware specific access to control-lines */
256 static void em_x270_nand_cmd_ctl(struct mtd_info *mtd, int dat,
257                                  unsigned int ctrl)
258 {
259         struct nand_chip *this = mtd->priv;
260         unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
261
262         dsb();
263
264         if (ctrl & NAND_CTRL_CHANGE) {
265                 if (ctrl & NAND_ALE)
266                         nandaddr |=  (1 << 3);
267                 else
268                         nandaddr &= ~(1 << 3);
269                 if (ctrl & NAND_CLE)
270                         nandaddr |=  (1 << 2);
271                 else
272                         nandaddr &= ~(1 << 2);
273                 if (ctrl & NAND_NCE)
274                         nand_cs_on();
275                 else
276                         nand_cs_off();
277         }
278
279         dsb();
280         this->IO_ADDR_W = (void __iomem *)nandaddr;
281         if (dat != NAND_CMD_NONE)
282                 writel(dat, this->IO_ADDR_W);
283
284         dsb();
285 }
286
287 /* read device ready pin */
288 static int em_x270_nand_device_ready(struct mtd_info *mtd)
289 {
290         dsb();
291
292         return gpio_get_value(GPIO56_NAND_RB);
293 }
294
295 static struct mtd_partition em_x270_partition_info[] = {
296         [0] = {
297                 .name   = "em_x270-0",
298                 .offset = 0,
299                 .size   = SZ_4M,
300         },
301         [1] = {
302                 .name   = "em_x270-1",
303                 .offset = MTDPART_OFS_APPEND,
304                 .size   = MTDPART_SIZ_FULL
305         },
306 };
307
308 static const char *em_x270_part_probes[] = { "cmdlinepart", NULL };
309
310 struct platform_nand_data em_x270_nand_platdata = {
311         .chip = {
312                 .nr_chips = 1,
313                 .chip_offset = 0,
314                 .nr_partitions = ARRAY_SIZE(em_x270_partition_info),
315                 .partitions = em_x270_partition_info,
316                 .chip_delay = 20,
317                 .part_probe_types = em_x270_part_probes,
318         },
319         .ctrl = {
320                 .hwcontrol = 0,
321                 .dev_ready = em_x270_nand_device_ready,
322                 .select_chip = 0,
323                 .cmd_ctrl = em_x270_nand_cmd_ctl,
324         },
325 };
326
327 static struct resource em_x270_nand_resource[] = {
328         [0] = {
329                 .start = PXA_CS1_PHYS,
330                 .end   = PXA_CS1_PHYS + 12,
331                 .flags = IORESOURCE_MEM,
332         },
333 };
334
335 static struct platform_device em_x270_nand = {
336         .name           = "gen_nand",
337         .num_resources  = ARRAY_SIZE(em_x270_nand_resource),
338         .resource       = em_x270_nand_resource,
339         .id             = -1,
340         .dev            = {
341                 .platform_data = &em_x270_nand_platdata,
342         }
343 };
344
345 static void __init em_x270_init_nand(void)
346 {
347         int err;
348
349         err = gpio_request(GPIO11_NAND_CS, "NAND CS");
350         if (err) {
351                 pr_warning("EM-X270: failed to request NAND CS gpio\n");
352                 return;
353         }
354
355         gpio_direction_output(GPIO11_NAND_CS, 1);
356
357         err = gpio_request(GPIO56_NAND_RB, "NAND R/B");
358         if (err) {
359                 pr_warning("EM-X270: failed to request NAND R/B gpio\n");
360                 gpio_free(GPIO11_NAND_CS);
361                 return;
362         }
363
364         gpio_direction_input(GPIO56_NAND_RB);
365
366         platform_device_register(&em_x270_nand);
367 }
368 #else
369 static inline void em_x270_init_nand(void) {}
370 #endif
371
372 /* PXA27x OHCI controller setup */
373 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
374 static int em_x270_ohci_init(struct device *dev)
375 {
376         /* enable port 2 transiever */
377         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE;
378
379         return 0;
380 }
381
382 static struct pxaohci_platform_data em_x270_ohci_platform_data = {
383         .port_mode      = PMM_PERPORT_MODE,
384         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
385         .init           = em_x270_ohci_init,
386 };
387
388 static void __init em_x270_init_ohci(void)
389 {
390         pxa_set_ohci_info(&em_x270_ohci_platform_data);
391 }
392 #else
393 static inline void em_x270_init_ohci(void) {}
394 #endif
395
396 /* MCI controller setup */
397 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
398 static int em_x270_mci_init(struct device *dev,
399                             irq_handler_t em_x270_detect_int,
400                             void *data)
401 {
402         int err = request_irq(EM_X270_MMC_CD, em_x270_detect_int,
403                               IRQF_DISABLED | IRQF_TRIGGER_FALLING,
404                               "MMC card detect", data);
405         if (err) {
406                 printk(KERN_ERR "%s: can't request MMC card detect IRQ: %d\n",
407                        __func__, err);
408                 return err;
409         }
410
411         return 0;
412 }
413
414 static void em_x270_mci_setpower(struct device *dev, unsigned int vdd)
415 {
416         /*
417            FIXME: current hardware implementation does not allow to
418            enable/disable MMC power. This will be fixed in next HW releases,
419            and we'll need to add implmentation here.
420         */
421         return;
422 }
423
424 static void em_x270_mci_exit(struct device *dev, void *data)
425 {
426         int irq = gpio_to_irq(GPIO13_MMC_CD);
427         free_irq(irq, data);
428 }
429
430 static struct pxamci_platform_data em_x270_mci_platform_data = {
431         .ocr_mask       = MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31,
432         .init           = em_x270_mci_init,
433         .setpower       = em_x270_mci_setpower,
434         .exit           = em_x270_mci_exit,
435 };
436
437 static void __init em_x270_init_mmc(void)
438 {
439         pxa_set_mci_info(&em_x270_mci_platform_data);
440 }
441 #else
442 static inline void em_x270_init_mmc(void) {}
443 #endif
444
445 /* LCD 480x640 */
446 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
447 static struct pxafb_mode_info em_x270_lcd_mode = {
448         .pixclock       = 50000,
449         .bpp            = 16,
450         .xres           = 480,
451         .yres           = 640,
452         .hsync_len      = 8,
453         .vsync_len      = 2,
454         .left_margin    = 8,
455         .upper_margin   = 0,
456         .right_margin   = 24,
457         .lower_margin   = 4,
458         .cmap_greyscale = 0,
459 };
460
461 static struct pxafb_mach_info em_x270_lcd = {
462         .modes          = &em_x270_lcd_mode,
463         .num_modes      = 1,
464         .lcd_conn       = LCD_COLOR_TFT_16BPP,
465 };
466 static void __init em_x270_init_lcd(void)
467 {
468         set_pxa_fb_info(&em_x270_lcd);
469 }
470 #else
471 static inline void em_x270_init_lcd(void) {}
472 #endif
473
474 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
475 static void __init em_x270_init_ac97(void)
476 {
477         pxa_set_ac97_info(NULL);
478 }
479 #else
480 static inline void em_x270_init_ac97(void) {}
481 #endif
482
483 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
484 static unsigned int em_x270_matrix_keys[] = {
485         KEY(0, 0, KEY_A), KEY(1, 0, KEY_UP), KEY(2, 1, KEY_B),
486         KEY(0, 2, KEY_LEFT), KEY(1, 1, KEY_ENTER), KEY(2, 0, KEY_RIGHT),
487         KEY(0, 1, KEY_C), KEY(1, 2, KEY_DOWN), KEY(2, 2, KEY_D),
488 };
489
490 struct pxa27x_keypad_platform_data em_x270_keypad_info = {
491         /* code map for the matrix keys */
492         .matrix_key_rows        = 3,
493         .matrix_key_cols        = 3,
494         .matrix_key_map         = em_x270_matrix_keys,
495         .matrix_key_map_size    = ARRAY_SIZE(em_x270_matrix_keys),
496 };
497
498 static void __init em_x270_init_keypad(void)
499 {
500         pxa_set_keypad_info(&em_x270_keypad_info);
501 }
502 #else
503 static inline void em_x270_init_keypad(void) {}
504 #endif
505
506 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
507 static struct gpio_keys_button gpio_keys_button[] = {
508         [0] = {
509                 .desc   = "sleep/wakeup",
510                 .code   = KEY_SUSPEND,
511                 .type   = EV_PWR,
512                 .gpio   = 1,
513                 .wakeup = 1,
514         },
515 };
516
517 static struct gpio_keys_platform_data em_x270_gpio_keys_data = {
518         .buttons        = gpio_keys_button,
519         .nbuttons       = 1,
520 };
521
522 static struct platform_device em_x270_gpio_keys = {
523         .name           = "gpio-keys",
524         .id             = -1,
525         .dev            = {
526                 .platform_data  = &em_x270_gpio_keys_data,
527         },
528 };
529
530 static void __init em_x270_init_gpio_keys(void)
531 {
532         platform_device_register(&em_x270_gpio_keys);
533 }
534 #else
535 static inline void em_x270_init_gpio_keys(void) {}
536 #endif
537
538 static void __init em_x270_init(void)
539 {
540         pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_pin_config));
541
542         em_x270_init_dm9000();
543         em_x270_init_rtc();
544         em_x270_init_nand();
545         em_x270_init_lcd();
546         em_x270_init_mmc();
547         em_x270_init_ohci();
548         em_x270_init_keypad();
549         em_x270_init_gpio_keys();
550         em_x270_init_ac97();
551 }
552
553 MACHINE_START(EM_X270, "Compulab EM-X270")
554         .boot_params    = 0xa0000100,
555         .phys_io        = 0x40000000,
556         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
557         .map_io         = pxa_map_io,
558         .init_irq       = pxa27x_init_irq,
559         .timer          = &pxa_timer,
560         .init_machine   = em_x270_init,
561 MACHINE_END