Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux.git] / arch / arm / mach-s3c24xx / mach-bast.c
1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
2  *
3  * Copyright 2003-2008 Simtec Electronics
4  *   Ben Dooks <ben@simtec.co.uk>
5  *
6  * http://www.simtec.co.uk/products/EB2410ITX/
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/gpio.h>
20 #include <linux/syscore_ops.h>
21 #include <linux/serial_core.h>
22 #include <linux/serial_s3c.h>
23 #include <linux/platform_device.h>
24 #include <linux/dm9000.h>
25 #include <linux/ata_platform.h>
26 #include <linux/i2c.h>
27 #include <linux/io.h>
28 #include <linux/serial_8250.h>
29
30 #include <linux/mtd/mtd.h>
31 #include <linux/mtd/nand.h>
32 #include <linux/mtd/nand_ecc.h>
33 #include <linux/mtd/partitions.h>
34
35 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
36 #include <linux/platform_data/hwmon-s3c.h>
37 #include <linux/platform_data/i2c-s3c2410.h>
38 #include <linux/platform_data/mtd-nand-s3c2410.h>
39
40 #include <net/ax88796.h>
41
42 #include <asm/irq.h>
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/irq.h>
46 #include <asm/mach-types.h>
47
48 #include <mach/fb.h>
49 #include <mach/hardware.h>
50 #include <mach/regs-gpio.h>
51 #include <mach/regs-lcd.h>
52 #include <mach/gpio-samsung.h>
53
54 #include <plat/clock.h>
55 #include <plat/cpu.h>
56 #include <plat/cpu-freq.h>
57 #include <plat/devs.h>
58 #include <plat/gpio-cfg.h>
59 #include <plat/samsung-time.h>
60
61 #include "bast.h"
62 #include "common.h"
63 #include "simtec.h"
64
65 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
66
67 /* macros for virtual address mods for the io space entries */
68 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
69 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
70 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
71 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
72
73 /* macros to modify the physical addresses for io space */
74
75 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
76 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
77 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
78 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
79
80 static struct map_desc bast_iodesc[] __initdata = {
81   /* ISA IO areas */
82   {
83           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
84           .pfn          = PA_CS2(BAST_PA_ISAIO),
85           .length       = SZ_16M,
86           .type         = MT_DEVICE,
87   }, {
88           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
89           .pfn          = PA_CS3(BAST_PA_ISAIO),
90           .length       = SZ_16M,
91           .type         = MT_DEVICE,
92   },
93   /* bast CPLD control registers, and external interrupt controls */
94   {
95           .virtual      = (u32)BAST_VA_CTRL1,
96           .pfn          = __phys_to_pfn(BAST_PA_CTRL1),
97           .length       = SZ_1M,
98           .type         = MT_DEVICE,
99   }, {
100           .virtual      = (u32)BAST_VA_CTRL2,
101           .pfn          = __phys_to_pfn(BAST_PA_CTRL2),
102           .length       = SZ_1M,
103           .type         = MT_DEVICE,
104   }, {
105           .virtual      = (u32)BAST_VA_CTRL3,
106           .pfn          = __phys_to_pfn(BAST_PA_CTRL3),
107           .length       = SZ_1M,
108           .type         = MT_DEVICE,
109   }, {
110           .virtual      = (u32)BAST_VA_CTRL4,
111           .pfn          = __phys_to_pfn(BAST_PA_CTRL4),
112           .length       = SZ_1M,
113           .type         = MT_DEVICE,
114   },
115   /* PC104 IRQ mux */
116   {
117           .virtual      = (u32)BAST_VA_PC104_IRQREQ,
118           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
119           .length       = SZ_1M,
120           .type         = MT_DEVICE,
121   }, {
122           .virtual      = (u32)BAST_VA_PC104_IRQRAW,
123           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
124           .length       = SZ_1M,
125           .type         = MT_DEVICE,
126   }, {
127           .virtual      = (u32)BAST_VA_PC104_IRQMASK,
128           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
129           .length       = SZ_1M,
130           .type         = MT_DEVICE,
131   },
132
133   /* peripheral space... one for each of fast/slow/byte/16bit */
134   /* note, ide is only decoded in word space, even though some registers
135    * are only 8bit */
136
137   /* slow, byte */
138   { VA_C2(BAST_VA_ISAIO),   PA_CS2(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
139   { VA_C2(BAST_VA_ISAMEM),  PA_CS2(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
140   { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
141
142   /* slow, word */
143   { VA_C3(BAST_VA_ISAIO),   PA_CS3(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
144   { VA_C3(BAST_VA_ISAMEM),  PA_CS3(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
145   { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
146
147   /* fast, byte */
148   { VA_C4(BAST_VA_ISAIO),   PA_CS4(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
149   { VA_C4(BAST_VA_ISAMEM),  PA_CS4(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
150   { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
151
152   /* fast, word */
153   { VA_C5(BAST_VA_ISAIO),   PA_CS5(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
154   { VA_C5(BAST_VA_ISAMEM),  PA_CS5(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
155   { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
156 };
157
158 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
159 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
160 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
161
162 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
163         [0] = {
164                 .hwport      = 0,
165                 .flags       = 0,
166                 .ucon        = UCON,
167                 .ulcon       = ULCON,
168                 .ufcon       = UFCON,
169         },
170         [1] = {
171                 .hwport      = 1,
172                 .flags       = 0,
173                 .ucon        = UCON,
174                 .ulcon       = ULCON,
175                 .ufcon       = UFCON,
176         },
177         /* port 2 is not actually used */
178         [2] = {
179                 .hwport      = 2,
180                 .flags       = 0,
181                 .ucon        = UCON,
182                 .ulcon       = ULCON,
183                 .ufcon       = UFCON,
184         }
185 };
186
187 /* NAND Flash on BAST board */
188
189 #ifdef CONFIG_PM
190 static int bast_pm_suspend(void)
191 {
192         /* ensure that an nRESET is not generated on resume. */
193         gpio_direction_output(S3C2410_GPA(21), 1);
194         return 0;
195 }
196
197 static void bast_pm_resume(void)
198 {
199         s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
200 }
201
202 #else
203 #define bast_pm_suspend NULL
204 #define bast_pm_resume NULL
205 #endif
206
207 static struct syscore_ops bast_pm_syscore_ops = {
208         .suspend        = bast_pm_suspend,
209         .resume         = bast_pm_resume,
210 };
211
212 static int smartmedia_map[] = { 0 };
213 static int chip0_map[] = { 1 };
214 static int chip1_map[] = { 2 };
215 static int chip2_map[] = { 3 };
216
217 static struct mtd_partition __initdata bast_default_nand_part[] = {
218         [0] = {
219                 .name   = "Boot Agent",
220                 .size   = SZ_16K,
221                 .offset = 0,
222         },
223         [1] = {
224                 .name   = "/boot",
225                 .size   = SZ_4M - SZ_16K,
226                 .offset = SZ_16K,
227         },
228         [2] = {
229                 .name   = "user",
230                 .offset = SZ_4M,
231                 .size   = MTDPART_SIZ_FULL,
232         }
233 };
234
235 /* the bast has 4 selectable slots for nand-flash, the three
236  * on-board chip areas, as well as the external SmartMedia
237  * slot.
238  *
239  * Note, there is no current hot-plug support for the SmartMedia
240  * socket.
241 */
242
243 static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
244         [0] = {
245                 .name           = "SmartMedia",
246                 .nr_chips       = 1,
247                 .nr_map         = smartmedia_map,
248                 .options        = NAND_SCAN_SILENT_NODEV,
249                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
250                 .partitions     = bast_default_nand_part,
251         },
252         [1] = {
253                 .name           = "chip0",
254                 .nr_chips       = 1,
255                 .nr_map         = chip0_map,
256                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
257                 .partitions     = bast_default_nand_part,
258         },
259         [2] = {
260                 .name           = "chip1",
261                 .nr_chips       = 1,
262                 .nr_map         = chip1_map,
263                 .options        = NAND_SCAN_SILENT_NODEV,
264                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
265                 .partitions     = bast_default_nand_part,
266         },
267         [3] = {
268                 .name           = "chip2",
269                 .nr_chips       = 1,
270                 .nr_map         = chip2_map,
271                 .options        = NAND_SCAN_SILENT_NODEV,
272                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
273                 .partitions     = bast_default_nand_part,
274         }
275 };
276
277 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
278 {
279         unsigned int tmp;
280
281         slot = set->nr_map[slot] & 3;
282
283         pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
284                  slot, set, set->nr_map);
285
286         tmp = __raw_readb(BAST_VA_CTRL2);
287         tmp &= BAST_CPLD_CTLR2_IDERST;
288         tmp |= slot;
289         tmp |= BAST_CPLD_CTRL2_WNAND;
290
291         pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
292
293         __raw_writeb(tmp, BAST_VA_CTRL2);
294 }
295
296 static struct s3c2410_platform_nand __initdata bast_nand_info = {
297         .tacls          = 30,
298         .twrph0         = 60,
299         .twrph1         = 60,
300         .nr_sets        = ARRAY_SIZE(bast_nand_sets),
301         .sets           = bast_nand_sets,
302         .select_chip    = bast_nand_select,
303 };
304
305 /* DM9000 */
306
307 static struct resource bast_dm9k_resource[] = {
308         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000, 4),
309         [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000 + 0x40, 0x40),
310         [2] = DEFINE_RES_NAMED(BAST_IRQ_DM9000 , 1, NULL, IORESOURCE_IRQ \
311                                         | IORESOURCE_IRQ_HIGHLEVEL),
312 };
313
314 /* for the moment we limit ourselves to 16bit IO until some
315  * better IO routines can be written and tested
316 */
317
318 static struct dm9000_plat_data bast_dm9k_platdata = {
319         .flags          = DM9000_PLATF_16BITONLY,
320 };
321
322 static struct platform_device bast_device_dm9k = {
323         .name           = "dm9000",
324         .id             = 0,
325         .num_resources  = ARRAY_SIZE(bast_dm9k_resource),
326         .resource       = bast_dm9k_resource,
327         .dev            = {
328                 .platform_data = &bast_dm9k_platdata,
329         }
330 };
331
332 /* serial devices */
333
334 #define SERIAL_BASE  (S3C2410_CS2 + BAST_PA_SUPERIO)
335 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
336 #define SERIAL_CLK   (1843200)
337
338 static struct plat_serial8250_port bast_sio_data[] = {
339         [0] = {
340                 .mapbase        = SERIAL_BASE + 0x2f8,
341                 .irq            = BAST_IRQ_PCSERIAL1,
342                 .flags          = SERIAL_FLAGS,
343                 .iotype         = UPIO_MEM,
344                 .regshift       = 0,
345                 .uartclk        = SERIAL_CLK,
346         },
347         [1] = {
348                 .mapbase        = SERIAL_BASE + 0x3f8,
349                 .irq            = BAST_IRQ_PCSERIAL2,
350                 .flags          = SERIAL_FLAGS,
351                 .iotype         = UPIO_MEM,
352                 .regshift       = 0,
353                 .uartclk        = SERIAL_CLK,
354         },
355         { }
356 };
357
358 static struct platform_device bast_sio = {
359         .name                   = "serial8250",
360         .id                     = PLAT8250_DEV_PLATFORM,
361         .dev                    = {
362                 .platform_data  = &bast_sio_data,
363         },
364 };
365
366 /* we have devices on the bus which cannot work much over the
367  * standard 100KHz i2c bus frequency
368 */
369
370 static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
371         .flags          = 0,
372         .slave_addr     = 0x10,
373         .frequency      = 100*1000,
374 };
375
376 /* Asix AX88796 10/100 ethernet controller */
377
378 static struct ax_plat_data bast_asix_platdata = {
379         .flags          = AXFLG_MAC_FROMDEV,
380         .wordlength     = 2,
381         .dcr_val        = 0x48,
382         .rcr_val        = 0x40,
383 };
384
385 static struct resource bast_asix_resource[] = {
386         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET, 0x18 * 0x20),
387         [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20), 1),
388         [2] = DEFINE_RES_IRQ(BAST_IRQ_ASIX),
389 };
390
391 static struct platform_device bast_device_asix = {
392         .name           = "ax88796",
393         .id             = 0,
394         .num_resources  = ARRAY_SIZE(bast_asix_resource),
395         .resource       = bast_asix_resource,
396         .dev            = {
397                 .platform_data = &bast_asix_platdata
398         }
399 };
400
401 /* Asix AX88796 10/100 ethernet controller parallel port */
402
403 static struct resource bast_asixpp_resource[] = {
404         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20), \
405                                         0x30 * 0x20),
406 };
407
408 static struct platform_device bast_device_axpp = {
409         .name           = "ax88796-pp",
410         .id             = 0,
411         .num_resources  = ARRAY_SIZE(bast_asixpp_resource),
412         .resource       = bast_asixpp_resource,
413 };
414
415 /* LCD/VGA controller */
416
417 static struct s3c2410fb_display __initdata bast_lcd_info[] = {
418         {
419                 .type           = S3C2410_LCDCON1_TFT,
420                 .width          = 640,
421                 .height         = 480,
422
423                 .pixclock       = 33333,
424                 .xres           = 640,
425                 .yres           = 480,
426                 .bpp            = 4,
427                 .left_margin    = 40,
428                 .right_margin   = 20,
429                 .hsync_len      = 88,
430                 .upper_margin   = 30,
431                 .lower_margin   = 32,
432                 .vsync_len      = 3,
433
434                 .lcdcon5        = 0x00014b02,
435         },
436         {
437                 .type           = S3C2410_LCDCON1_TFT,
438                 .width          = 640,
439                 .height         = 480,
440
441                 .pixclock       = 33333,
442                 .xres           = 640,
443                 .yres           = 480,
444                 .bpp            = 8,
445                 .left_margin    = 40,
446                 .right_margin   = 20,
447                 .hsync_len      = 88,
448                 .upper_margin   = 30,
449                 .lower_margin   = 32,
450                 .vsync_len      = 3,
451
452                 .lcdcon5        = 0x00014b02,
453         },
454         {
455                 .type           = S3C2410_LCDCON1_TFT,
456                 .width          = 640,
457                 .height         = 480,
458
459                 .pixclock       = 33333,
460                 .xres           = 640,
461                 .yres           = 480,
462                 .bpp            = 16,
463                 .left_margin    = 40,
464                 .right_margin   = 20,
465                 .hsync_len      = 88,
466                 .upper_margin   = 30,
467                 .lower_margin   = 32,
468                 .vsync_len      = 3,
469
470                 .lcdcon5        = 0x00014b02,
471         },
472 };
473
474 /* LCD/VGA controller */
475
476 static struct s3c2410fb_mach_info __initdata bast_fb_info = {
477
478         .displays = bast_lcd_info,
479         .num_displays = ARRAY_SIZE(bast_lcd_info),
480         .default_display = 1,
481 };
482
483 /* I2C devices fitted. */
484
485 static struct i2c_board_info bast_i2c_devs[] __initdata = {
486         {
487                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
488         }, {
489                 I2C_BOARD_INFO("simtec-pmu", 0x6b),
490         }, {
491                 I2C_BOARD_INFO("ch7013", 0x75),
492         },
493 };
494
495 static struct s3c_hwmon_pdata bast_hwmon_info = {
496         /* LCD contrast (0-6.6V) */
497         .in[0] = &(struct s3c_hwmon_chcfg) {
498                 .name           = "lcd-contrast",
499                 .mult           = 3300,
500                 .div            = 512,
501         },
502         /* LED current feedback */
503         .in[1] = &(struct s3c_hwmon_chcfg) {
504                 .name           = "led-feedback",
505                 .mult           = 3300,
506                 .div            = 1024,
507         },
508         /* LCD feedback (0-6.6V) */
509         .in[2] = &(struct s3c_hwmon_chcfg) {
510                 .name           = "lcd-feedback",
511                 .mult           = 3300,
512                 .div            = 512,
513         },
514         /* Vcore (1.8-2.0V), Vref 3.3V  */
515         .in[3] = &(struct s3c_hwmon_chcfg) {
516                 .name           = "vcore",
517                 .mult           = 3300,
518                 .div            = 1024,
519         },
520 };
521
522 /* Standard BAST devices */
523 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
524
525 static struct platform_device *bast_devices[] __initdata = {
526         &s3c_device_ohci,
527         &s3c_device_lcd,
528         &s3c_device_wdt,
529         &s3c_device_i2c0,
530         &s3c_device_rtc,
531         &s3c_device_nand,
532         &s3c_device_adc,
533         &s3c_device_hwmon,
534         &bast_device_dm9k,
535         &bast_device_asix,
536         &bast_device_axpp,
537         &bast_sio,
538 };
539
540 static struct clk *bast_clocks[] __initdata = {
541         &s3c24xx_dclk0,
542         &s3c24xx_dclk1,
543         &s3c24xx_clkout0,
544         &s3c24xx_clkout1,
545         &s3c24xx_uclk,
546 };
547
548 static struct s3c_cpufreq_board __initdata bast_cpufreq = {
549         .refresh        = 7800, /* 7.8usec */
550         .auto_io        = 1,
551         .need_io        = 1,
552 };
553
554 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
555         .have_mic       = 1,
556         .have_lout      = 1,
557 };
558
559 static void __init bast_map_io(void)
560 {
561         /* initialise the clocks */
562
563         s3c24xx_dclk0.parent = &clk_upll;
564         s3c24xx_dclk0.rate   = 12*1000*1000;
565
566         s3c24xx_dclk1.parent = &clk_upll;
567         s3c24xx_dclk1.rate   = 24*1000*1000;
568
569         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
570         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
571
572         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
573
574         s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks));
575
576         s3c_hwmon_set_platdata(&bast_hwmon_info);
577
578         s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
579         s3c24xx_init_clocks(0);
580         s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
581         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
582 }
583
584 static void __init bast_init(void)
585 {
586         register_syscore_ops(&bast_pm_syscore_ops);
587
588         s3c_i2c0_set_platdata(&bast_i2c_info);
589         s3c_nand_set_platdata(&bast_nand_info);
590         s3c24xx_fb_set_platdata(&bast_fb_info);
591         platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
592
593         i2c_register_board_info(0, bast_i2c_devs,
594                                 ARRAY_SIZE(bast_i2c_devs));
595
596         usb_simtec_init();
597         nor_simtec_init();
598         simtec_audio_add(NULL, true, &bast_audio);
599
600         WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
601         
602         s3c_cpufreq_setboard(&bast_cpufreq);
603 }
604
605 MACHINE_START(BAST, "Simtec-BAST")
606         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
607         .atag_offset    = 0x100,
608         .map_io         = bast_map_io,
609         .init_irq       = s3c2410_init_irq,
610         .init_machine   = bast_init,
611         .init_time      = samsung_timer_init,
612         .restart        = s3c2410_restart,
613 MACHINE_END