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[ARM] JIVE: Add SPI bus definitions for LCD controller
[linux-2.6] / arch / arm / mach-s3c2412 / mach-jive.c
1 /* linux/arch/arm/mach-s3c2410/mach-jive.c
2  *
3  * Copyright 2007 Simtec Electronics
4  *      Ben Dooks <ben@simtec.co.uk>
5  *
6  * http://armlinux.simtec.co.uk/
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11 */
12
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/list.h>
17 #include <linux/timer.h>
18 #include <linux/init.h>
19 #include <linux/sysdev.h>
20 #include <linux/serial_core.h>
21 #include <linux/platform_device.h>
22
23 #include <linux/spi/spi.h>
24
25 #include <linux/mtd/mtd.h>
26 #include <linux/mtd/partitions.h>
27
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30 #include <asm/mach/irq.h>
31
32 #include <asm/plat-s3c/regs-serial.h>
33 #include <asm/plat-s3c/nand.h>
34
35 #include <asm/arch/regs-power.h>
36 #include <asm/arch/regs-gpio.h>
37 #include <asm/arch/regs-mem.h>
38 #include <asm/arch/regs-lcd.h>
39 #include <asm/arch/spi-gpio.h>
40 #include <asm/arch/fb.h>
41
42 #include <asm/mach-types.h>
43
44 #include <linux/mtd/mtd.h>
45 #include <linux/mtd/nand.h>
46 #include <linux/mtd/nand_ecc.h>
47 #include <linux/mtd/partitions.h>
48
49 #include <asm/plat-s3c24xx/clock.h>
50 #include <asm/plat-s3c24xx/devs.h>
51 #include <asm/plat-s3c24xx/cpu.h>
52 #include <asm/plat-s3c24xx/pm.h>
53 #include <asm/plat-s3c24xx/udc.h>
54
55 static struct map_desc jive_iodesc[] __initdata = {
56 };
57
58 #define UCON S3C2410_UCON_DEFAULT
59 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE
60 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
61
62 static struct s3c2410_uartcfg jive_uartcfgs[] = {
63         [0] = {
64                 .hwport      = 0,
65                 .flags       = 0,
66                 .ucon        = UCON,
67                 .ulcon       = ULCON,
68                 .ufcon       = UFCON,
69         },
70         [1] = {
71                 .hwport      = 1,
72                 .flags       = 0,
73                 .ucon        = UCON,
74                 .ulcon       = ULCON,
75                 .ufcon       = UFCON,
76         },
77         [2] = {
78                 .hwport      = 2,
79                 .flags       = 0,
80                 .ucon        = UCON,
81                 .ulcon       = ULCON,
82                 .ufcon       = UFCON,
83         }
84 };
85
86 /* Jive flash assignment
87  *
88  * 0x00000000-0x00028000 : uboot
89  * 0x00028000-0x0002c000 : uboot env
90  * 0x0002c000-0x00030000 : spare
91  * 0x00030000-0x00200000 : zimage A
92  * 0x00200000-0x01600000 : cramfs A
93  * 0x01600000-0x017d0000 : zimage B
94  * 0x017d0000-0x02bd0000 : cramfs B
95  * 0x02bd0000-0x03fd0000 : yaffs
96  */
97 static struct mtd_partition jive_imageA_nand_part[] = {
98
99 #ifdef CONFIG_MACH_JIVE_SHOW_BOOTLOADER
100         /* Don't allow access to the bootloader from linux */
101         {
102                 .name           = "uboot",
103                 .offset         = 0,
104                 .size           = (160 * SZ_1K),
105                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
106         },
107
108         /* spare */
109         {
110                 .name           = "spare",
111                 .offset         = (176 * SZ_1K),
112                 .size           = (16 * SZ_1K),
113         },
114 #endif
115
116         /* booted images */
117         {
118                 .name           = "kernel (ro)",
119                 .offset         = (192 * SZ_1K),
120                 .size           = (SZ_2M) - (192 * SZ_1K),
121                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
122         }, {
123                 .name           = "root (ro)",
124                 .offset         = (SZ_2M),
125                 .size           = (20 * SZ_1M),
126                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
127         },
128
129         /* yaffs */
130         {
131                 .name           = "yaffs",
132                 .offset         = (44 * SZ_1M),
133                 .size           = (20 * SZ_1M),
134         },
135
136         /* bootloader environment */
137         {
138                 .name           = "env",
139                 .offset         = (160 * SZ_1K),
140                 .size           = (16 * SZ_1K),
141         },
142
143         /* upgrade images */
144         {
145                 .name           = "zimage",
146                 .offset         = (22 * SZ_1M),
147                 .size           = (2 * SZ_1M) - (192 * SZ_1K),
148         }, {
149                 .name           = "cramfs",
150                 .offset         = (24 * SZ_1M) - (192*SZ_1K),
151                 .size           = (20 * SZ_1M),
152         },
153 };
154
155 static struct mtd_partition jive_imageB_nand_part[] = {
156
157 #ifdef CONFIG_MACH_JIVE_SHOW_BOOTLOADER
158         /* Don't allow access to the bootloader from linux */
159         {
160                 .name           = "uboot",
161                 .offset         = 0,
162                 .size           = (160 * SZ_1K),
163                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
164         },
165
166         /* spare */
167         {
168                 .name           = "spare",
169                 .offset         = (176 * SZ_1K),
170                 .size           = (16 * SZ_1K),
171         },
172 #endif
173
174         /* booted images */
175         {
176                 .name           = "kernel (ro)",
177                 .offset         = (22 * SZ_1M),
178                 .size           = (2 * SZ_1M) - (192 * SZ_1K),
179                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
180         },
181         {
182                 .name           = "root (ro)",
183                 .offset         = (24 * SZ_1M) - (192 * SZ_1K),
184                 .size           = (20 * SZ_1M),
185                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
186         },
187
188         /* yaffs */
189         {
190                 .name           = "yaffs",
191                 .offset         = (44 * SZ_1M),
192                 .size           = (20 * SZ_1M),
193         },
194
195         /* bootloader environment */
196         {
197                 .name           = "env",
198                 .offset         = (160 * SZ_1K),
199                 .size           = (16 * SZ_1K),
200         },
201
202         /* upgrade images */
203         {
204                 .name           = "zimage",
205                 .offset         = (192 * SZ_1K),
206                 .size           = (2 * SZ_1M) - (192 * SZ_1K),
207         }, {
208                 .name           = "cramfs",
209                 .offset         = (2 * SZ_1M),
210                 .size           = (20 * SZ_1M),
211         },
212 };
213
214 static struct s3c2410_nand_set jive_nand_sets[] = {
215         [0] = {
216                 .name           = "flash",
217                 .nr_chips       = 1,
218                 .nr_partitions  = ARRAY_SIZE(jive_imageA_nand_part),
219                 .partitions     = jive_imageA_nand_part,
220         },
221 };
222
223 static struct s3c2410_platform_nand jive_nand_info = {
224         /* set taken from osiris nand timings, possibly still conservative */
225         .tacls          = 30,
226         .twrph0         = 55,
227         .twrph1         = 40,
228         .sets           = jive_nand_sets,
229         .nr_sets        = ARRAY_SIZE(jive_nand_sets),
230 };
231
232 static int __init jive_mtdset(char *options)
233 {
234         struct s3c2410_nand_set *nand = &jive_nand_sets[0];
235         unsigned long set;
236
237         if (options == NULL || options[0] == '\0')
238                 return 0;
239
240         if (strict_strtoul(options, 10, &set)) {
241                 printk(KERN_ERR "failed to parse mtdset=%s\n", options);
242                 return 0;
243         }
244
245         switch (set) {
246         case 1:
247                 nand->nr_partitions = ARRAY_SIZE(jive_imageB_nand_part);
248                 nand->partitions = jive_imageB_nand_part;
249         case 0:
250                 /* this is already setup in the nand info */
251                 break;
252         default:
253                 printk(KERN_ERR "Unknown mtd set %ld specified,"
254                        "using default.", set);
255         }
256
257         return 0;
258 }
259
260 /* parse the mtdset= option given to the kernel command line */
261 __setup("mtdset=", jive_mtdset);
262
263 /* LCD timing and setup */
264
265 #define LCD_XRES         (240)
266 #define LCD_YRES         (320)
267 #define LCD_LEFT_MARGIN  (12)
268 #define LCD_RIGHT_MARGIN (12)
269 #define LCD_LOWER_MARGIN (12)
270 #define LCD_UPPER_MARGIN (12)
271 #define LCD_VSYNC        (2)
272 #define LCD_HSYNC        (2)
273
274 #define LCD_REFRESH      (60)
275
276 #define LCD_HTOT (LCD_HSYNC + LCD_LEFT_MARGIN + LCD_XRES + LCD_RIGHT_MARGIN)
277 #define LCD_VTOT (LCD_VSYNC + LCD_LOWER_MARGIN + LCD_YRES + LCD_UPPER_MARGIN)
278
279 struct s3c2410fb_display jive_vgg2432a4_display[] = {
280         [0] = {
281                 .width          = LCD_XRES,
282                 .height         = LCD_YRES,
283                 .xres           = LCD_XRES,
284                 .yres           = LCD_YRES,
285                 .left_margin    = LCD_LEFT_MARGIN,
286                 .right_margin   = LCD_RIGHT_MARGIN,
287                 .upper_margin   = LCD_UPPER_MARGIN,
288                 .lower_margin   = LCD_LOWER_MARGIN,
289                 .hsync_len      = LCD_HSYNC,
290                 .vsync_len      = LCD_VSYNC,
291
292                 .pixclock       = (1000000000000LL /
293                                    (LCD_REFRESH * LCD_HTOT * LCD_VTOT)),
294
295                 .bpp            = 16,
296                 .type           = (S3C2410_LCDCON1_TFT16BPP |
297                                    S3C2410_LCDCON1_TFT),
298
299                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
300                                    S3C2410_LCDCON5_INVVLINE |
301                                    S3C2410_LCDCON5_INVVFRAME |
302                                    S3C2410_LCDCON5_INVVDEN |
303                                    S3C2410_LCDCON5_PWREN),
304         },
305 };
306
307 /* todo - put into gpio header */
308
309 #define S3C2410_GPCCON_MASK(x)  (3 << ((x) * 2))
310 #define S3C2410_GPDCON_MASK(x)  (3 << ((x) * 2))
311
312 struct s3c2410fb_mach_info jive_lcd_config = {
313         .displays        = jive_vgg2432a4_display,
314         .num_displays    = ARRAY_SIZE(jive_vgg2432a4_display),
315         .default_display = 0,
316
317         /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
318          * and disable the pull down resistors on pins we are using for LCD
319          * data. */
320
321         .gpcup          = (0xf << 1) | (0x3f << 10),
322
323         .gpccon         = (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
324                            S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
325                            S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
326                            S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
327                            S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),
328
329         .gpccon_mask    = (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
330                            S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
331                            S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
332                            S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
333                            S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
334
335         .gpdup          = (0x3f << 2) | (0x3f << 10),
336
337         .gpdcon         = (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
338                            S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
339                            S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
340                            S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
341                            S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
342                            S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
343
344         .gpdcon_mask    = (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
345                            S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
346                            S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
347                            S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
348                            S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
349                            S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
350 };
351
352 /* LCD SPI support */
353
354 static void jive_lcd_spi_chipselect(struct s3c2410_spigpio_info *spi, int cs)
355 {
356         s3c2410_gpio_setpin(S3C2410_GPB7, cs ? 0 : 1);
357 }
358
359 static struct s3c2410_spigpio_info jive_lcd_spi = {
360         .bus_num        = 1,
361         .pin_clk        = S3C2410_GPG8,
362         .pin_mosi       = S3C2410_GPB8,
363         .chip_select    = jive_lcd_spi_chipselect,
364 };
365
366 static struct platform_device jive_device_lcdspi = {
367         .name           = "s3c24xx-spi-gpio",
368         .id             = 1,
369         .num_resources  = 0,
370         .dev.platform_data = &jive_lcd_spi,
371 };
372
373 /* JIVE SPI devices. */
374
375
376 static struct spi_board_info __initdata jive_spi_devs[] = {
377         [0] = {
378                 .modalias       = "VGG2432A4",
379                 .bus_num        = 1,
380                 .chip_select    = 0,
381                 .mode           = SPI_MODE_3,   /* CPOL=1, CPHA=1 */
382                 .max_speed_hz   = 100000,
383         },
384 };
385
386
387 static struct platform_device *jive_devices[] __initdata = {
388         &s3c_device_usb,
389         &s3c_device_rtc,
390         &s3c_device_wdt,
391         &s3c_device_i2c,
392         &s3c_device_lcd,
393         &jive_device_lcdspi,
394         &s3c_device_nand,
395         &s3c_device_usbgadget,
396 };
397
398 static struct s3c2410_udc_mach_info jive_udc_cfg __initdata = {
399         .vbus_pin       = S3C2410_GPG1,         /* detect is on GPG1 */
400 };
401
402 /* Jive power management device */
403
404 #ifdef CONFIG_PM
405 static int jive_pm_suspend(struct sys_device *sd, pm_message_t state)
406 {
407         /* Write the magic value u-boot uses to check for resume into
408          * the INFORM0 register, and ensure INFORM1 is set to the
409          * correct address to resume from. */
410
411         __raw_writel(0x2BED, S3C2412_INFORM0);
412         __raw_writel(virt_to_phys(s3c2410_cpu_resume), S3C2412_INFORM1);
413
414         return 0;
415 }
416
417 static int jive_pm_resume(struct sys_device *sd)
418 {
419         __raw_writel(0x0, S3C2412_INFORM0);
420         return 0;
421 }
422
423 #else
424 #define jive_pm_suspend NULL
425 #define jive_pm_resume NULL
426 #endif
427
428 static struct sysdev_class jive_pm_sysclass = {
429         .name           = "jive-pm",
430         .suspend        = jive_pm_suspend,
431         .resume         = jive_pm_resume,
432 };
433
434 static struct sys_device jive_pm_sysdev = {
435         .cls            = &jive_pm_sysclass,
436 };
437
438 static void __init jive_map_io(void)
439 {
440         s3c24xx_init_io(jive_iodesc, ARRAY_SIZE(jive_iodesc));
441         s3c24xx_init_clocks(12000000);
442         s3c24xx_init_uarts(jive_uartcfgs, ARRAY_SIZE(jive_uartcfgs));
443 }
444
445 static void __init jive_machine_init(void)
446 {
447         /* register system devices for managing low level suspend */
448
449         sysdev_class_register(&jive_pm_sysclass);
450         sysdev_register(&jive_pm_sysdev);
451
452         /* write our sleep configurations for the IO. Pull down all unused
453          * IO, ensure that we have turned off all peripherals we do not
454          * need, and configure the ones we do need. */
455
456         /* Port B sleep */
457
458         __raw_writel(S3C2412_SLPCON_IN(0)   |
459                      S3C2412_SLPCON_PULL(1) |
460                      S3C2412_SLPCON_HIGH(2) |
461                      S3C2412_SLPCON_PULL(3) |
462                      S3C2412_SLPCON_PULL(4) |
463                      S3C2412_SLPCON_PULL(5) |
464                      S3C2412_SLPCON_PULL(6) |
465                      S3C2412_SLPCON_HIGH(7) |
466                      S3C2412_SLPCON_PULL(8) |
467                      S3C2412_SLPCON_PULL(9) |
468                      S3C2412_SLPCON_PULL(10), S3C2412_GPBSLPCON);
469
470         /* Port C sleep */
471
472         __raw_writel(S3C2412_SLPCON_PULL(0) |
473                      S3C2412_SLPCON_PULL(1) |
474                      S3C2412_SLPCON_PULL(2) |
475                      S3C2412_SLPCON_PULL(3) |
476                      S3C2412_SLPCON_PULL(4) |
477                      S3C2412_SLPCON_PULL(5) |
478                      S3C2412_SLPCON_LOW(6)  |
479                      S3C2412_SLPCON_PULL(6) |
480                      S3C2412_SLPCON_PULL(7) |
481                      S3C2412_SLPCON_PULL(8) |
482                      S3C2412_SLPCON_PULL(9) |
483                      S3C2412_SLPCON_PULL(10) |
484                      S3C2412_SLPCON_PULL(11) |
485                      S3C2412_SLPCON_PULL(12) |
486                      S3C2412_SLPCON_PULL(13) |
487                      S3C2412_SLPCON_PULL(14) |
488                      S3C2412_SLPCON_PULL(15), S3C2412_GPCSLPCON);
489
490         /* Port D sleep */
491
492         __raw_writel(S3C2412_SLPCON_ALL_PULL, S3C2412_GPDSLPCON);
493
494         /* Port F sleep */
495
496         __raw_writel(S3C2412_SLPCON_LOW(0)  |
497                      S3C2412_SLPCON_LOW(1)  |
498                      S3C2412_SLPCON_LOW(2)  |
499                      S3C2412_SLPCON_EINT(3) |
500                      S3C2412_SLPCON_EINT(4) |
501                      S3C2412_SLPCON_EINT(5) |
502                      S3C2412_SLPCON_EINT(6) |
503                      S3C2412_SLPCON_EINT(7), S3C2412_GPFSLPCON);
504
505         /* Port G sleep */
506
507         __raw_writel(S3C2412_SLPCON_IN(0)    |
508                      S3C2412_SLPCON_IN(1)    |
509                      S3C2412_SLPCON_IN(2)    |
510                      S3C2412_SLPCON_IN(3)    |
511                      S3C2412_SLPCON_IN(4)    |
512                      S3C2412_SLPCON_IN(5)    |
513                      S3C2412_SLPCON_IN(6)    |
514                      S3C2412_SLPCON_IN(7)    |
515                      S3C2412_SLPCON_PULL(8)  |
516                      S3C2412_SLPCON_PULL(9)  |
517                      S3C2412_SLPCON_IN(10)   |
518                      S3C2412_SLPCON_PULL(11) |
519                      S3C2412_SLPCON_PULL(12) |
520                      S3C2412_SLPCON_PULL(13) |
521                      S3C2412_SLPCON_IN(14)   |
522                      S3C2412_SLPCON_PULL(15), S3C2412_GPGSLPCON);
523
524         /* Port H sleep */
525
526         __raw_writel(S3C2412_SLPCON_PULL(0) |
527                      S3C2412_SLPCON_PULL(1) |
528                      S3C2412_SLPCON_PULL(2) |
529                      S3C2412_SLPCON_PULL(3) |
530                      S3C2412_SLPCON_PULL(4) |
531                      S3C2412_SLPCON_PULL(5) |
532                      S3C2412_SLPCON_PULL(6) |
533                      S3C2412_SLPCON_IN(7)   |
534                      S3C2412_SLPCON_IN(8)   |
535                      S3C2412_SLPCON_PULL(9) |
536                      S3C2412_SLPCON_IN(10), S3C2412_GPHSLPCON);
537
538         /* initialise the power management now we've setup everything. */
539
540         s3c2410_pm_init();
541
542         s3c_device_nand.dev.platform_data = &jive_nand_info;
543
544         /* initialise the spi */
545
546         s3c2410_gpio_setpin(S3C2410_GPG13, 0);
547         s3c2410_gpio_cfgpin(S3C2410_GPG13, S3C2410_GPIO_OUTPUT);
548
549         s3c2410_gpio_setpin(S3C2410_GPB7, 1);
550         s3c2410_gpio_cfgpin(S3C2410_GPB7, S3C2410_GPIO_OUTPUT);
551
552         s3c2410_gpio_setpin(S3C2410_GPB6, 0);
553         s3c2410_gpio_cfgpin(S3C2410_GPB6, S3C2410_GPIO_OUTPUT);
554
555         s3c2410_gpio_setpin(S3C2410_GPG8, 1);
556         s3c2410_gpio_cfgpin(S3C2410_GPG8, S3C2410_GPIO_OUTPUT);
557
558         /* Turn off suspend on both USB ports, and switch the
559          * selectable USB port to USB device mode. */
560
561         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
562                               S3C2410_MISCCR_USBSUSPND0 |
563                               S3C2410_MISCCR_USBSUSPND1, 0x0);
564
565         s3c24xx_udc_set_platdata(&jive_udc_cfg);
566         s3c24xx_fb_set_platdata(&jive_lcd_config);
567
568         spi_register_board_info(jive_spi_devs, ARRAY_SIZE(jive_spi_devs));
569
570         platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
571 }
572
573 MACHINE_START(JIVE, "JIVE")
574         /* Maintainer: Ben Dooks <ben@fluff.org> */
575         .phys_io        = S3C2410_PA_UART,
576         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
577         .boot_params    = S3C2410_SDRAM_PA + 0x100,
578
579         .init_irq       = s3c24xx_init_irq,
580         .map_io         = jive_map_io,
581         .init_machine   = jive_machine_init,
582         .timer          = &s3c24xx_timer,
583 MACHINE_END