Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
[linux-2.6] / arch / arm / mach-s3c2410 / mach-bast.c
1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
2  *
3  * Copyright (c) 2003-2005 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/serial_core.h>
20 #include <linux/platform_device.h>
21 #include <linux/dm9000.h>
22
23 #include <net/ax88796.h>
24
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/irq.h>
28
29 #include <asm/arch/bast-map.h>
30 #include <asm/arch/bast-irq.h>
31 #include <asm/arch/bast-cpld.h>
32
33 #include <asm/hardware.h>
34 #include <asm/io.h>
35 #include <asm/irq.h>
36 #include <asm/mach-types.h>
37
38 //#include <asm/debug-ll.h>
39 #include <asm/arch/regs-serial.h>
40 #include <asm/arch/regs-gpio.h>
41 #include <asm/arch/regs-mem.h>
42 #include <asm/arch/regs-lcd.h>
43
44 #include <asm/arch/nand.h>
45 #include <asm/arch/iic.h>
46 #include <asm/arch/fb.h>
47
48 #include <linux/mtd/mtd.h>
49 #include <linux/mtd/nand.h>
50 #include <linux/mtd/nand_ecc.h>
51 #include <linux/mtd/partitions.h>
52
53 #include <linux/serial_8250.h>
54
55 #include <asm/plat-s3c24xx/clock.h>
56 #include <asm/plat-s3c24xx/devs.h>
57 #include <asm/plat-s3c24xx/cpu.h>
58 #include "usb-simtec.h"
59
60 #define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
61
62 /* macros for virtual address mods for the io space entries */
63 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
64 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
65 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
66 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
67
68 /* macros to modify the physical addresses for io space */
69
70 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
71 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
72 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
73 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
74
75 static struct map_desc bast_iodesc[] __initdata = {
76   /* ISA IO areas */
77   {
78           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
79           .pfn          = PA_CS2(BAST_PA_ISAIO),
80           .length       = SZ_16M,
81           .type         = MT_DEVICE,
82   }, {
83           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
84           .pfn          = PA_CS3(BAST_PA_ISAIO),
85           .length       = SZ_16M,
86           .type         = MT_DEVICE,
87   },
88   /* bast CPLD control registers, and external interrupt controls */
89   {
90           .virtual      = (u32)BAST_VA_CTRL1,
91           .pfn          = __phys_to_pfn(BAST_PA_CTRL1),
92           .length       = SZ_1M,
93           .type         = MT_DEVICE,
94   }, {
95           .virtual      = (u32)BAST_VA_CTRL2,
96           .pfn          = __phys_to_pfn(BAST_PA_CTRL2),
97           .length       = SZ_1M,
98           .type         = MT_DEVICE,
99   }, {
100           .virtual      = (u32)BAST_VA_CTRL3,
101           .pfn          = __phys_to_pfn(BAST_PA_CTRL3),
102           .length       = SZ_1M,
103           .type         = MT_DEVICE,
104   }, {
105           .virtual      = (u32)BAST_VA_CTRL4,
106           .pfn          = __phys_to_pfn(BAST_PA_CTRL4),
107           .length       = SZ_1M,
108           .type         = MT_DEVICE,
109   },
110   /* PC104 IRQ mux */
111   {
112           .virtual      = (u32)BAST_VA_PC104_IRQREQ,
113           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
114           .length       = SZ_1M,
115           .type         = MT_DEVICE,
116   }, {
117           .virtual      = (u32)BAST_VA_PC104_IRQRAW,
118           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
119           .length       = SZ_1M,
120           .type         = MT_DEVICE,
121   }, {
122           .virtual      = (u32)BAST_VA_PC104_IRQMASK,
123           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
124           .length       = SZ_1M,
125           .type         = MT_DEVICE,
126   },
127
128   /* peripheral space... one for each of fast/slow/byte/16bit */
129   /* note, ide is only decoded in word space, even though some registers
130    * are only 8bit */
131
132   /* slow, byte */
133   { VA_C2(BAST_VA_ISAIO),   PA_CS2(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
134   { VA_C2(BAST_VA_ISAMEM),  PA_CS2(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
135   { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
136   { VA_C2(BAST_VA_IDEPRI),  PA_CS3(BAST_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
137   { VA_C2(BAST_VA_IDESEC),  PA_CS3(BAST_PA_IDESEC),   SZ_1M,  MT_DEVICE },
138   { VA_C2(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
139   { VA_C2(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
140
141   /* slow, word */
142   { VA_C3(BAST_VA_ISAIO),   PA_CS3(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
143   { VA_C3(BAST_VA_ISAMEM),  PA_CS3(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
144   { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
145   { VA_C3(BAST_VA_IDEPRI),  PA_CS3(BAST_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
146   { VA_C3(BAST_VA_IDESEC),  PA_CS3(BAST_PA_IDESEC),   SZ_1M,  MT_DEVICE },
147   { VA_C3(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
148   { VA_C3(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
149
150   /* fast, byte */
151   { VA_C4(BAST_VA_ISAIO),   PA_CS4(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
152   { VA_C4(BAST_VA_ISAMEM),  PA_CS4(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
153   { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
154   { VA_C4(BAST_VA_IDEPRI),  PA_CS5(BAST_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
155   { VA_C4(BAST_VA_IDESEC),  PA_CS5(BAST_PA_IDESEC),   SZ_1M,  MT_DEVICE },
156   { VA_C4(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
157   { VA_C4(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
158
159   /* fast, word */
160   { VA_C5(BAST_VA_ISAIO),   PA_CS5(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
161   { VA_C5(BAST_VA_ISAMEM),  PA_CS5(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
162   { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
163   { VA_C5(BAST_VA_IDEPRI),  PA_CS5(BAST_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
164   { VA_C5(BAST_VA_IDESEC),  PA_CS5(BAST_PA_IDESEC),   SZ_1M,  MT_DEVICE },
165   { VA_C5(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
166   { VA_C5(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
167 };
168
169 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
170 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
171 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
172
173 static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
174         [0] = {
175                 .name           = "uclk",
176                 .divisor        = 1,
177                 .min_baud       = 0,
178                 .max_baud       = 0,
179         },
180         [1] = {
181                 .name           = "pclk",
182                 .divisor        = 1,
183                 .min_baud       = 0,
184                 .max_baud       = 0,
185         }
186 };
187
188
189 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
190         [0] = {
191                 .hwport      = 0,
192                 .flags       = 0,
193                 .ucon        = UCON,
194                 .ulcon       = ULCON,
195                 .ufcon       = UFCON,
196                 .clocks      = bast_serial_clocks,
197                 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
198         },
199         [1] = {
200                 .hwport      = 1,
201                 .flags       = 0,
202                 .ucon        = UCON,
203                 .ulcon       = ULCON,
204                 .ufcon       = UFCON,
205                 .clocks      = bast_serial_clocks,
206                 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
207         },
208         /* port 2 is not actually used */
209         [2] = {
210                 .hwport      = 2,
211                 .flags       = 0,
212                 .ucon        = UCON,
213                 .ulcon       = ULCON,
214                 .ufcon       = UFCON,
215                 .clocks      = bast_serial_clocks,
216                 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
217         }
218 };
219
220 /* NOR Flash on BAST board */
221
222 static struct resource bast_nor_resource[] = {
223         [0] = {
224                 .start = S3C2410_CS1 + 0x4000000,
225                 .end   = S3C2410_CS1 + 0x4000000 + (32*1024*1024) - 1,
226                 .flags = IORESOURCE_MEM,
227         }
228 };
229
230 static struct platform_device bast_device_nor = {
231         .name           = "bast-nor",
232         .id             = -1,
233         .num_resources  = ARRAY_SIZE(bast_nor_resource),
234         .resource       = bast_nor_resource,
235 };
236
237 /* NAND Flash on BAST board */
238
239
240 static int smartmedia_map[] = { 0 };
241 static int chip0_map[] = { 1 };
242 static int chip1_map[] = { 2 };
243 static int chip2_map[] = { 3 };
244
245 static struct mtd_partition bast_default_nand_part[] = {
246         [0] = {
247                 .name   = "Boot Agent",
248                 .size   = SZ_16K,
249                 .offset = 0,
250         },
251         [1] = {
252                 .name   = "/boot",
253                 .size   = SZ_4M - SZ_16K,
254                 .offset = SZ_16K,
255         },
256         [2] = {
257                 .name   = "user",
258                 .offset = SZ_4M,
259                 .size   = MTDPART_SIZ_FULL,
260         }
261 };
262
263 /* the bast has 4 selectable slots for nand-flash, the three
264  * on-board chip areas, as well as the external SmartMedia
265  * slot.
266  *
267  * Note, there is no current hot-plug support for the SmartMedia
268  * socket.
269 */
270
271 static struct s3c2410_nand_set bast_nand_sets[] = {
272         [0] = {
273                 .name           = "SmartMedia",
274                 .nr_chips       = 1,
275                 .nr_map         = smartmedia_map,
276                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
277                 .partitions     = bast_default_nand_part,
278         },
279         [1] = {
280                 .name           = "chip0",
281                 .nr_chips       = 1,
282                 .nr_map         = chip0_map,
283                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
284                 .partitions     = bast_default_nand_part,
285         },
286         [2] = {
287                 .name           = "chip1",
288                 .nr_chips       = 1,
289                 .nr_map         = chip1_map,
290                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
291                 .partitions     = bast_default_nand_part,
292         },
293         [3] = {
294                 .name           = "chip2",
295                 .nr_chips       = 1,
296                 .nr_map         = chip2_map,
297                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
298                 .partitions     = bast_default_nand_part,
299         }
300 };
301
302 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
303 {
304         unsigned int tmp;
305
306         slot = set->nr_map[slot] & 3;
307
308         pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
309                  slot, set, set->nr_map);
310
311         tmp = __raw_readb(BAST_VA_CTRL2);
312         tmp &= BAST_CPLD_CTLR2_IDERST;
313         tmp |= slot;
314         tmp |= BAST_CPLD_CTRL2_WNAND;
315
316         pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
317
318         __raw_writeb(tmp, BAST_VA_CTRL2);
319 }
320
321 static struct s3c2410_platform_nand bast_nand_info = {
322         .tacls          = 30,
323         .twrph0         = 60,
324         .twrph1         = 60,
325         .nr_sets        = ARRAY_SIZE(bast_nand_sets),
326         .sets           = bast_nand_sets,
327         .select_chip    = bast_nand_select,
328 };
329
330 /* DM9000 */
331
332 static struct resource bast_dm9k_resource[] = {
333         [0] = {
334                 .start = S3C2410_CS5 + BAST_PA_DM9000,
335                 .end   = S3C2410_CS5 + BAST_PA_DM9000 + 3,
336                 .flags = IORESOURCE_MEM,
337         },
338         [1] = {
339                 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
340                 .end   = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
341                 .flags = IORESOURCE_MEM,
342         },
343         [2] = {
344                 .start = IRQ_DM9000,
345                 .end   = IRQ_DM9000,
346                 .flags = IORESOURCE_IRQ,
347         }
348
349 };
350
351 /* for the moment we limit ourselves to 16bit IO until some
352  * better IO routines can be written and tested
353 */
354
355 static struct dm9000_plat_data bast_dm9k_platdata = {
356         .flags          = DM9000_PLATF_16BITONLY,
357 };
358
359 static struct platform_device bast_device_dm9k = {
360         .name           = "dm9000",
361         .id             = 0,
362         .num_resources  = ARRAY_SIZE(bast_dm9k_resource),
363         .resource       = bast_dm9k_resource,
364         .dev            = {
365                 .platform_data = &bast_dm9k_platdata,
366         }
367 };
368
369 /* serial devices */
370
371 #define SERIAL_BASE  (S3C2410_CS2 + BAST_PA_SUPERIO)
372 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
373 #define SERIAL_CLK   (1843200)
374
375 static struct plat_serial8250_port bast_sio_data[] = {
376         [0] = {
377                 .mapbase        = SERIAL_BASE + 0x2f8,
378                 .irq            = IRQ_PCSERIAL1,
379                 .flags          = SERIAL_FLAGS,
380                 .iotype         = UPIO_MEM,
381                 .regshift       = 0,
382                 .uartclk        = SERIAL_CLK,
383         },
384         [1] = {
385                 .mapbase        = SERIAL_BASE + 0x3f8,
386                 .irq            = IRQ_PCSERIAL2,
387                 .flags          = SERIAL_FLAGS,
388                 .iotype         = UPIO_MEM,
389                 .regshift       = 0,
390                 .uartclk        = SERIAL_CLK,
391         },
392         { }
393 };
394
395 static struct platform_device bast_sio = {
396         .name                   = "serial8250",
397         .id                     = PLAT8250_DEV_PLATFORM,
398         .dev                    = {
399                 .platform_data  = &bast_sio_data,
400         },
401 };
402
403 /* we have devices on the bus which cannot work much over the
404  * standard 100KHz i2c bus frequency
405 */
406
407 static struct s3c2410_platform_i2c bast_i2c_info = {
408         .flags          = 0,
409         .slave_addr     = 0x10,
410         .bus_freq       = 100*1000,
411         .max_freq       = 130*1000,
412 };
413
414 /* Asix AX88796 10/100 ethernet controller */
415
416 static struct ax_plat_data bast_asix_platdata = {
417         .flags          = AXFLG_MAC_FROMDEV,
418         .wordlength     = 2,
419         .dcr_val        = 0x48,
420         .rcr_val        = 0x40,
421 };
422
423 static struct resource bast_asix_resource[] = {
424         [0] = {
425                 .start = S3C2410_CS5 + BAST_PA_ASIXNET,
426                 .end   = S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20) - 1,
427                 .flags = IORESOURCE_MEM,
428         },
429         [1] = {
430                 .start = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20),
431                 .end   = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20),
432                 .flags = IORESOURCE_MEM,
433         },
434         [2] = {
435                 .start = IRQ_ASIX,
436                 .end   = IRQ_ASIX,
437                 .flags = IORESOURCE_IRQ
438         }
439 };
440
441 static struct platform_device bast_device_asix = {
442         .name           = "ax88796",
443         .id             = 0,
444         .num_resources  = ARRAY_SIZE(bast_asix_resource),
445         .resource       = bast_asix_resource,
446         .dev            = {
447                 .platform_data = &bast_asix_platdata
448         }
449 };
450
451 /* Asix AX88796 10/100 ethernet controller parallel port */
452
453 static struct resource bast_asixpp_resource[] = {
454         [0] = {
455                 .start = S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20),
456                 .end   = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1b * 0x20) - 1,
457                 .flags = IORESOURCE_MEM,
458         }
459 };
460
461 static struct platform_device bast_device_axpp = {
462         .name           = "ax88796-pp",
463         .id             = 0,
464         .num_resources  = ARRAY_SIZE(bast_asixpp_resource),
465         .resource       = bast_asixpp_resource,
466 };
467
468 /* LCD/VGA controller */
469
470 static struct s3c2410fb_mach_info __initdata bast_lcd_info = {
471         .width          = 640,
472         .height         = 480,
473
474         .xres           = {
475                 .min            = 320,
476                 .max            = 1024,
477                 .defval         = 640,
478         },
479
480         .yres           = {
481                 .min            = 240,
482                 .max            = 600,
483                 .defval         = 480,
484         },
485
486         .bpp            = {
487                 .min            = 4,
488                 .max            = 16,
489                 .defval         = 8,
490         },
491
492         .regs           = {
493                 .lcdcon1        = 0x00000176,
494                 .lcdcon2        = 0x1d77c7c2,
495                 .lcdcon3        = 0x013a7f13,
496                 .lcdcon4        = 0x00000057,
497                 .lcdcon5        = 0x00014b02,
498         }
499 };
500
501 /* Standard BAST devices */
502
503 static struct platform_device *bast_devices[] __initdata = {
504         &s3c_device_usb,
505         &s3c_device_lcd,
506         &s3c_device_wdt,
507         &s3c_device_i2c,
508         &s3c_device_iis,
509         &s3c_device_rtc,
510         &s3c_device_nand,
511         &bast_device_nor,
512         &bast_device_dm9k,
513         &bast_device_asix,
514         &bast_device_axpp,
515         &bast_sio,
516 };
517
518 static struct clk *bast_clocks[] = {
519         &s3c24xx_dclk0,
520         &s3c24xx_dclk1,
521         &s3c24xx_clkout0,
522         &s3c24xx_clkout1,
523         &s3c24xx_uclk,
524 };
525
526 static void __init bast_map_io(void)
527 {
528         /* initialise the clocks */
529
530         s3c24xx_dclk0.parent = NULL;
531         s3c24xx_dclk0.rate   = 12*1000*1000;
532
533         s3c24xx_dclk1.parent = NULL;
534         s3c24xx_dclk1.rate   = 24*1000*1000;
535
536         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
537         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
538
539         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
540
541         s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks));
542
543         s3c_device_nand.dev.platform_data = &bast_nand_info;
544         s3c_device_i2c.dev.platform_data = &bast_i2c_info;
545
546         s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
547         s3c24xx_init_clocks(0);
548         s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
549
550         usb_simtec_init();
551 }
552
553 static void __init bast_init(void)
554 {
555         s3c24xx_fb_set_platdata(&bast_lcd_info);
556         platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
557 }
558
559 MACHINE_START(BAST, "Simtec-BAST")
560         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
561         .phys_io        = S3C2410_PA_UART,
562         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
563         .boot_params    = S3C2410_SDRAM_PA + 0x100,
564         .map_io         = bast_map_io,
565         .init_irq       = s3c24xx_init_irq,
566         .init_machine   = bast_init,
567         .timer          = &s3c24xx_timer,
568 MACHINE_END