Merge branch 'for-linville' of git://github.com/kvalo/ath6kl
[cascardo/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/platform_device.h>
23 #include <linux/dm9000.h>
24 #include <linux/ata_platform.h>
25 #include <linux/i2c.h>
26 #include <linux/io.h>
27
28 #include <net/ax88796.h>
29
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
33
34 #include <mach/bast-map.h>
35 #include <mach/bast-irq.h>
36 #include <mach/bast-cpld.h>
37
38 #include <mach/hardware.h>
39 #include <asm/irq.h>
40 #include <asm/mach-types.h>
41
42 //#include <asm/debug-ll.h>
43 #include <plat/regs-serial.h>
44 #include <mach/regs-gpio.h>
45 #include <mach/regs-mem.h>
46 #include <mach/regs-lcd.h>
47
48 #include <linux/platform_data/hwmon-s3c.h>
49 #include <linux/platform_data/mtd-nand-s3c2410.h>
50 #include <linux/platform_data/i2c-s3c2410.h>
51 #include <mach/fb.h>
52
53 #include <linux/mtd/mtd.h>
54 #include <linux/mtd/nand.h>
55 #include <linux/mtd/nand_ecc.h>
56 #include <linux/mtd/partitions.h>
57
58 #include <linux/serial_8250.h>
59
60 #include <plat/clock.h>
61 #include <plat/devs.h>
62 #include <plat/cpu.h>
63 #include <plat/cpu-freq.h>
64 #include <plat/gpio-cfg.h>
65 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
66
67 #include "simtec.h"
68 #include "common.h"
69
70 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
71
72 /* macros for virtual address mods for the io space entries */
73 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
74 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
75 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
76 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
77
78 /* macros to modify the physical addresses for io space */
79
80 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
81 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
82 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
83 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
84
85 static struct map_desc bast_iodesc[] __initdata = {
86   /* ISA IO areas */
87   {
88           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
89           .pfn          = PA_CS2(BAST_PA_ISAIO),
90           .length       = SZ_16M,
91           .type         = MT_DEVICE,
92   }, {
93           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
94           .pfn          = PA_CS3(BAST_PA_ISAIO),
95           .length       = SZ_16M,
96           .type         = MT_DEVICE,
97   },
98   /* bast CPLD control registers, and external interrupt controls */
99   {
100           .virtual      = (u32)BAST_VA_CTRL1,
101           .pfn          = __phys_to_pfn(BAST_PA_CTRL1),
102           .length       = SZ_1M,
103           .type         = MT_DEVICE,
104   }, {
105           .virtual      = (u32)BAST_VA_CTRL2,
106           .pfn          = __phys_to_pfn(BAST_PA_CTRL2),
107           .length       = SZ_1M,
108           .type         = MT_DEVICE,
109   }, {
110           .virtual      = (u32)BAST_VA_CTRL3,
111           .pfn          = __phys_to_pfn(BAST_PA_CTRL3),
112           .length       = SZ_1M,
113           .type         = MT_DEVICE,
114   }, {
115           .virtual      = (u32)BAST_VA_CTRL4,
116           .pfn          = __phys_to_pfn(BAST_PA_CTRL4),
117           .length       = SZ_1M,
118           .type         = MT_DEVICE,
119   },
120   /* PC104 IRQ mux */
121   {
122           .virtual      = (u32)BAST_VA_PC104_IRQREQ,
123           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
124           .length       = SZ_1M,
125           .type         = MT_DEVICE,
126   }, {
127           .virtual      = (u32)BAST_VA_PC104_IRQRAW,
128           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
129           .length       = SZ_1M,
130           .type         = MT_DEVICE,
131   }, {
132           .virtual      = (u32)BAST_VA_PC104_IRQMASK,
133           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
134           .length       = SZ_1M,
135           .type         = MT_DEVICE,
136   },
137
138   /* peripheral space... one for each of fast/slow/byte/16bit */
139   /* note, ide is only decoded in word space, even though some registers
140    * are only 8bit */
141
142   /* slow, byte */
143   { VA_C2(BAST_VA_ISAIO),   PA_CS2(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
144   { VA_C2(BAST_VA_ISAMEM),  PA_CS2(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
145   { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
146
147   /* slow, word */
148   { VA_C3(BAST_VA_ISAIO),   PA_CS3(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
149   { VA_C3(BAST_VA_ISAMEM),  PA_CS3(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
150   { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
151
152   /* fast, byte */
153   { VA_C4(BAST_VA_ISAIO),   PA_CS4(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
154   { VA_C4(BAST_VA_ISAMEM),  PA_CS4(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
155   { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
156
157   /* fast, word */
158   { VA_C5(BAST_VA_ISAIO),   PA_CS5(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
159   { VA_C5(BAST_VA_ISAMEM),  PA_CS5(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
160   { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
161 };
162
163 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
164 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
165 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
166
167 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
168         [0] = {
169                 .hwport      = 0,
170                 .flags       = 0,
171                 .ucon        = UCON,
172                 .ulcon       = ULCON,
173                 .ufcon       = UFCON,
174         },
175         [1] = {
176                 .hwport      = 1,
177                 .flags       = 0,
178                 .ucon        = UCON,
179                 .ulcon       = ULCON,
180                 .ufcon       = UFCON,
181         },
182         /* port 2 is not actually used */
183         [2] = {
184                 .hwport      = 2,
185                 .flags       = 0,
186                 .ucon        = UCON,
187                 .ulcon       = ULCON,
188                 .ufcon       = UFCON,
189         }
190 };
191
192 /* NAND Flash on BAST board */
193
194 #ifdef CONFIG_PM
195 static int bast_pm_suspend(void)
196 {
197         /* ensure that an nRESET is not generated on resume. */
198         gpio_direction_output(S3C2410_GPA(21), 1);
199         return 0;
200 }
201
202 static void bast_pm_resume(void)
203 {
204         s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
205 }
206
207 #else
208 #define bast_pm_suspend NULL
209 #define bast_pm_resume NULL
210 #endif
211
212 static struct syscore_ops bast_pm_syscore_ops = {
213         .suspend        = bast_pm_suspend,
214         .resume         = bast_pm_resume,
215 };
216
217 static int smartmedia_map[] = { 0 };
218 static int chip0_map[] = { 1 };
219 static int chip1_map[] = { 2 };
220 static int chip2_map[] = { 3 };
221
222 static struct mtd_partition __initdata bast_default_nand_part[] = {
223         [0] = {
224                 .name   = "Boot Agent",
225                 .size   = SZ_16K,
226                 .offset = 0,
227         },
228         [1] = {
229                 .name   = "/boot",
230                 .size   = SZ_4M - SZ_16K,
231                 .offset = SZ_16K,
232         },
233         [2] = {
234                 .name   = "user",
235                 .offset = SZ_4M,
236                 .size   = MTDPART_SIZ_FULL,
237         }
238 };
239
240 /* the bast has 4 selectable slots for nand-flash, the three
241  * on-board chip areas, as well as the external SmartMedia
242  * slot.
243  *
244  * Note, there is no current hot-plug support for the SmartMedia
245  * socket.
246 */
247
248 static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
249         [0] = {
250                 .name           = "SmartMedia",
251                 .nr_chips       = 1,
252                 .nr_map         = smartmedia_map,
253                 .options        = NAND_SCAN_SILENT_NODEV,
254                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
255                 .partitions     = bast_default_nand_part,
256         },
257         [1] = {
258                 .name           = "chip0",
259                 .nr_chips       = 1,
260                 .nr_map         = chip0_map,
261                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
262                 .partitions     = bast_default_nand_part,
263         },
264         [2] = {
265                 .name           = "chip1",
266                 .nr_chips       = 1,
267                 .nr_map         = chip1_map,
268                 .options        = NAND_SCAN_SILENT_NODEV,
269                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
270                 .partitions     = bast_default_nand_part,
271         },
272         [3] = {
273                 .name           = "chip2",
274                 .nr_chips       = 1,
275                 .nr_map         = chip2_map,
276                 .options        = NAND_SCAN_SILENT_NODEV,
277                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
278                 .partitions     = bast_default_nand_part,
279         }
280 };
281
282 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
283 {
284         unsigned int tmp;
285
286         slot = set->nr_map[slot] & 3;
287
288         pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
289                  slot, set, set->nr_map);
290
291         tmp = __raw_readb(BAST_VA_CTRL2);
292         tmp &= BAST_CPLD_CTLR2_IDERST;
293         tmp |= slot;
294         tmp |= BAST_CPLD_CTRL2_WNAND;
295
296         pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
297
298         __raw_writeb(tmp, BAST_VA_CTRL2);
299 }
300
301 static struct s3c2410_platform_nand __initdata bast_nand_info = {
302         .tacls          = 30,
303         .twrph0         = 60,
304         .twrph1         = 60,
305         .nr_sets        = ARRAY_SIZE(bast_nand_sets),
306         .sets           = bast_nand_sets,
307         .select_chip    = bast_nand_select,
308 };
309
310 /* DM9000 */
311
312 static struct resource bast_dm9k_resource[] = {
313         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000, 4),
314         [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000 + 0x40, 0x40),
315         [2] = DEFINE_RES_NAMED(IRQ_DM9000 , 1, NULL, IORESOURCE_IRQ \
316                                         | IORESOURCE_IRQ_HIGHLEVEL),
317 };
318
319 /* for the moment we limit ourselves to 16bit IO until some
320  * better IO routines can be written and tested
321 */
322
323 static struct dm9000_plat_data bast_dm9k_platdata = {
324         .flags          = DM9000_PLATF_16BITONLY,
325 };
326
327 static struct platform_device bast_device_dm9k = {
328         .name           = "dm9000",
329         .id             = 0,
330         .num_resources  = ARRAY_SIZE(bast_dm9k_resource),
331         .resource       = bast_dm9k_resource,
332         .dev            = {
333                 .platform_data = &bast_dm9k_platdata,
334         }
335 };
336
337 /* serial devices */
338
339 #define SERIAL_BASE  (S3C2410_CS2 + BAST_PA_SUPERIO)
340 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
341 #define SERIAL_CLK   (1843200)
342
343 static struct plat_serial8250_port bast_sio_data[] = {
344         [0] = {
345                 .mapbase        = SERIAL_BASE + 0x2f8,
346                 .irq            = IRQ_PCSERIAL1,
347                 .flags          = SERIAL_FLAGS,
348                 .iotype         = UPIO_MEM,
349                 .regshift       = 0,
350                 .uartclk        = SERIAL_CLK,
351         },
352         [1] = {
353                 .mapbase        = SERIAL_BASE + 0x3f8,
354                 .irq            = IRQ_PCSERIAL2,
355                 .flags          = SERIAL_FLAGS,
356                 .iotype         = UPIO_MEM,
357                 .regshift       = 0,
358                 .uartclk        = SERIAL_CLK,
359         },
360         { }
361 };
362
363 static struct platform_device bast_sio = {
364         .name                   = "serial8250",
365         .id                     = PLAT8250_DEV_PLATFORM,
366         .dev                    = {
367                 .platform_data  = &bast_sio_data,
368         },
369 };
370
371 /* we have devices on the bus which cannot work much over the
372  * standard 100KHz i2c bus frequency
373 */
374
375 static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
376         .flags          = 0,
377         .slave_addr     = 0x10,
378         .frequency      = 100*1000,
379 };
380
381 /* Asix AX88796 10/100 ethernet controller */
382
383 static struct ax_plat_data bast_asix_platdata = {
384         .flags          = AXFLG_MAC_FROMDEV,
385         .wordlength     = 2,
386         .dcr_val        = 0x48,
387         .rcr_val        = 0x40,
388 };
389
390 static struct resource bast_asix_resource[] = {
391         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET, 0x18 * 0x20),
392         [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20), 1),
393         [2] = DEFINE_RES_IRQ(IRQ_ASIX),
394 };
395
396 static struct platform_device bast_device_asix = {
397         .name           = "ax88796",
398         .id             = 0,
399         .num_resources  = ARRAY_SIZE(bast_asix_resource),
400         .resource       = bast_asix_resource,
401         .dev            = {
402                 .platform_data = &bast_asix_platdata
403         }
404 };
405
406 /* Asix AX88796 10/100 ethernet controller parallel port */
407
408 static struct resource bast_asixpp_resource[] = {
409         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20), \
410                                         0x30 * 0x20),
411 };
412
413 static struct platform_device bast_device_axpp = {
414         .name           = "ax88796-pp",
415         .id             = 0,
416         .num_resources  = ARRAY_SIZE(bast_asixpp_resource),
417         .resource       = bast_asixpp_resource,
418 };
419
420 /* LCD/VGA controller */
421
422 static struct s3c2410fb_display __initdata bast_lcd_info[] = {
423         {
424                 .type           = S3C2410_LCDCON1_TFT,
425                 .width          = 640,
426                 .height         = 480,
427
428                 .pixclock       = 33333,
429                 .xres           = 640,
430                 .yres           = 480,
431                 .bpp            = 4,
432                 .left_margin    = 40,
433                 .right_margin   = 20,
434                 .hsync_len      = 88,
435                 .upper_margin   = 30,
436                 .lower_margin   = 32,
437                 .vsync_len      = 3,
438
439                 .lcdcon5        = 0x00014b02,
440         },
441         {
442                 .type           = S3C2410_LCDCON1_TFT,
443                 .width          = 640,
444                 .height         = 480,
445
446                 .pixclock       = 33333,
447                 .xres           = 640,
448                 .yres           = 480,
449                 .bpp            = 8,
450                 .left_margin    = 40,
451                 .right_margin   = 20,
452                 .hsync_len      = 88,
453                 .upper_margin   = 30,
454                 .lower_margin   = 32,
455                 .vsync_len      = 3,
456
457                 .lcdcon5        = 0x00014b02,
458         },
459         {
460                 .type           = S3C2410_LCDCON1_TFT,
461                 .width          = 640,
462                 .height         = 480,
463
464                 .pixclock       = 33333,
465                 .xres           = 640,
466                 .yres           = 480,
467                 .bpp            = 16,
468                 .left_margin    = 40,
469                 .right_margin   = 20,
470                 .hsync_len      = 88,
471                 .upper_margin   = 30,
472                 .lower_margin   = 32,
473                 .vsync_len      = 3,
474
475                 .lcdcon5        = 0x00014b02,
476         },
477 };
478
479 /* LCD/VGA controller */
480
481 static struct s3c2410fb_mach_info __initdata bast_fb_info = {
482
483         .displays = bast_lcd_info,
484         .num_displays = ARRAY_SIZE(bast_lcd_info),
485         .default_display = 1,
486 };
487
488 /* I2C devices fitted. */
489
490 static struct i2c_board_info bast_i2c_devs[] __initdata = {
491         {
492                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
493         }, {
494                 I2C_BOARD_INFO("simtec-pmu", 0x6b),
495         }, {
496                 I2C_BOARD_INFO("ch7013", 0x75),
497         },
498 };
499
500 static struct s3c_hwmon_pdata bast_hwmon_info = {
501         /* LCD contrast (0-6.6V) */
502         .in[0] = &(struct s3c_hwmon_chcfg) {
503                 .name           = "lcd-contrast",
504                 .mult           = 3300,
505                 .div            = 512,
506         },
507         /* LED current feedback */
508         .in[1] = &(struct s3c_hwmon_chcfg) {
509                 .name           = "led-feedback",
510                 .mult           = 3300,
511                 .div            = 1024,
512         },
513         /* LCD feedback (0-6.6V) */
514         .in[2] = &(struct s3c_hwmon_chcfg) {
515                 .name           = "lcd-feedback",
516                 .mult           = 3300,
517                 .div            = 512,
518         },
519         /* Vcore (1.8-2.0V), Vref 3.3V  */
520         .in[3] = &(struct s3c_hwmon_chcfg) {
521                 .name           = "vcore",
522                 .mult           = 3300,
523                 .div            = 1024,
524         },
525 };
526
527 /* Standard BAST devices */
528 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
529
530 static struct platform_device *bast_devices[] __initdata = {
531         &s3c_device_ohci,
532         &s3c_device_lcd,
533         &s3c_device_wdt,
534         &s3c_device_i2c0,
535         &s3c_device_rtc,
536         &s3c_device_nand,
537         &s3c_device_adc,
538         &s3c_device_hwmon,
539         &bast_device_dm9k,
540         &bast_device_asix,
541         &bast_device_axpp,
542         &bast_sio,
543 };
544
545 static struct clk *bast_clocks[] __initdata = {
546         &s3c24xx_dclk0,
547         &s3c24xx_dclk1,
548         &s3c24xx_clkout0,
549         &s3c24xx_clkout1,
550         &s3c24xx_uclk,
551 };
552
553 static struct s3c_cpufreq_board __initdata bast_cpufreq = {
554         .refresh        = 7800, /* 7.8usec */
555         .auto_io        = 1,
556         .need_io        = 1,
557 };
558
559 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
560         .have_mic       = 1,
561         .have_lout      = 1,
562 };
563
564 static void __init bast_map_io(void)
565 {
566         /* initialise the clocks */
567
568         s3c24xx_dclk0.parent = &clk_upll;
569         s3c24xx_dclk0.rate   = 12*1000*1000;
570
571         s3c24xx_dclk1.parent = &clk_upll;
572         s3c24xx_dclk1.rate   = 24*1000*1000;
573
574         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
575         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
576
577         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
578
579         s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks));
580
581         s3c_hwmon_set_platdata(&bast_hwmon_info);
582
583         s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
584         s3c24xx_init_clocks(0);
585         s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
586 }
587
588 static void __init bast_init(void)
589 {
590         register_syscore_ops(&bast_pm_syscore_ops);
591
592         s3c_i2c0_set_platdata(&bast_i2c_info);
593         s3c_nand_set_platdata(&bast_nand_info);
594         s3c24xx_fb_set_platdata(&bast_fb_info);
595         platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
596
597         i2c_register_board_info(0, bast_i2c_devs,
598                                 ARRAY_SIZE(bast_i2c_devs));
599
600         usb_simtec_init();
601         nor_simtec_init();
602         simtec_audio_add(NULL, true, &bast_audio);
603
604         WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
605         
606         s3c_cpufreq_setboard(&bast_cpufreq);
607 }
608
609 MACHINE_START(BAST, "Simtec-BAST")
610         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
611         .atag_offset    = 0x100,
612         .map_io         = bast_map_io,
613         .init_irq       = s3c24xx_init_irq,
614         .init_machine   = bast_init,
615         .timer          = &s3c24xx_timer,
616         .restart        = s3c2410_restart,
617 MACHINE_END