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[linux-2.6.34.14-moxart.git] / arch / arm / mach-s3c2410 / mach-bast.c
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1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
3 * Copyright 2003-2008 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://www.simtec.co.uk/products/EB2410ITX/
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.
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/sysdev.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>
28 #include <net/ax88796.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
34 #include <mach/bast-map.h>
35 #include <mach/bast-irq.h>
36 #include <mach/bast-cpld.h>
38 #include <mach/hardware.h>
39 #include <asm/irq.h>
40 #include <asm/mach-types.h>
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>
48 #include <plat/hwmon.h>
49 #include <plat/nand.h>
50 #include <plat/iic.h>
51 #include <mach/fb.h>
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>
58 #include <linux/serial_8250.h>
60 #include <plat/clock.h>
61 #include <plat/devs.h>
62 #include <plat/cpu.h>
63 #include <plat/cpu-freq.h>
64 #include <plat/audio-simtec.h>
66 #include "usb-simtec.h"
67 #include "nor-simtec.h"
69 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
71 /* macros for virtual address mods for the io space entries */
72 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
73 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
74 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
75 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
77 /* macros to modify the physical addresses for io space */
79 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
80 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
81 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
82 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
84 static struct map_desc bast_iodesc[] __initdata = {
85 /* ISA IO areas */
87 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
88 .pfn = PA_CS2(BAST_PA_ISAIO),
89 .length = SZ_16M,
90 .type = MT_DEVICE,
91 }, {
92 .virtual = (u32)S3C24XX_VA_ISA_WORD,
93 .pfn = PA_CS3(BAST_PA_ISAIO),
94 .length = SZ_16M,
95 .type = MT_DEVICE,
97 /* bast CPLD control registers, and external interrupt controls */
99 .virtual = (u32)BAST_VA_CTRL1,
100 .pfn = __phys_to_pfn(BAST_PA_CTRL1),
101 .length = SZ_1M,
102 .type = MT_DEVICE,
103 }, {
104 .virtual = (u32)BAST_VA_CTRL2,
105 .pfn = __phys_to_pfn(BAST_PA_CTRL2),
106 .length = SZ_1M,
107 .type = MT_DEVICE,
108 }, {
109 .virtual = (u32)BAST_VA_CTRL3,
110 .pfn = __phys_to_pfn(BAST_PA_CTRL3),
111 .length = SZ_1M,
112 .type = MT_DEVICE,
113 }, {
114 .virtual = (u32)BAST_VA_CTRL4,
115 .pfn = __phys_to_pfn(BAST_PA_CTRL4),
116 .length = SZ_1M,
117 .type = MT_DEVICE,
119 /* PC104 IRQ mux */
121 .virtual = (u32)BAST_VA_PC104_IRQREQ,
122 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
123 .length = SZ_1M,
124 .type = MT_DEVICE,
125 }, {
126 .virtual = (u32)BAST_VA_PC104_IRQRAW,
127 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
128 .length = SZ_1M,
129 .type = MT_DEVICE,
130 }, {
131 .virtual = (u32)BAST_VA_PC104_IRQMASK,
132 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
133 .length = SZ_1M,
134 .type = MT_DEVICE,
137 /* peripheral space... one for each of fast/slow/byte/16bit */
138 /* note, ide is only decoded in word space, even though some registers
139 * are only 8bit */
141 /* slow, byte */
142 { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
143 { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
144 { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
146 /* slow, word */
147 { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
148 { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
149 { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
151 /* fast, byte */
152 { VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
153 { VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
154 { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
156 /* fast, word */
157 { VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
158 { VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
159 { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
162 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
163 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
164 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
166 static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
167 [0] = {
168 .name = "uclk",
169 .divisor = 1,
170 .min_baud = 0,
171 .max_baud = 0,
173 [1] = {
174 .name = "pclk",
175 .divisor = 1,
176 .min_baud = 0,
177 .max_baud = 0,
182 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
183 [0] = {
184 .hwport = 0,
185 .flags = 0,
186 .ucon = UCON,
187 .ulcon = ULCON,
188 .ufcon = UFCON,
189 .clocks = bast_serial_clocks,
190 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
192 [1] = {
193 .hwport = 1,
194 .flags = 0,
195 .ucon = UCON,
196 .ulcon = ULCON,
197 .ufcon = UFCON,
198 .clocks = bast_serial_clocks,
199 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
201 /* port 2 is not actually used */
202 [2] = {
203 .hwport = 2,
204 .flags = 0,
205 .ucon = UCON,
206 .ulcon = ULCON,
207 .ufcon = UFCON,
208 .clocks = bast_serial_clocks,
209 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
213 /* NAND Flash on BAST board */
215 #ifdef CONFIG_PM
216 static int bast_pm_suspend(struct sys_device *sd, pm_message_t state)
218 /* ensure that an nRESET is not generated on resume. */
219 s3c2410_gpio_setpin(S3C2410_GPA(21), 1);
220 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPIO_OUTPUT);
222 return 0;
225 static int bast_pm_resume(struct sys_device *sd)
227 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
228 return 0;
231 #else
232 #define bast_pm_suspend NULL
233 #define bast_pm_resume NULL
234 #endif
236 static struct sysdev_class bast_pm_sysclass = {
237 .name = "mach-bast",
238 .suspend = bast_pm_suspend,
239 .resume = bast_pm_resume,
242 static struct sys_device bast_pm_sysdev = {
243 .cls = &bast_pm_sysclass,
246 static int smartmedia_map[] = { 0 };
247 static int chip0_map[] = { 1 };
248 static int chip1_map[] = { 2 };
249 static int chip2_map[] = { 3 };
251 static struct mtd_partition __initdata bast_default_nand_part[] = {
252 [0] = {
253 .name = "Boot Agent",
254 .size = SZ_16K,
255 .offset = 0,
257 [1] = {
258 .name = "/boot",
259 .size = SZ_4M - SZ_16K,
260 .offset = SZ_16K,
262 [2] = {
263 .name = "user",
264 .offset = SZ_4M,
265 .size = MTDPART_SIZ_FULL,
269 /* the bast has 4 selectable slots for nand-flash, the three
270 * on-board chip areas, as well as the external SmartMedia
271 * slot.
273 * Note, there is no current hot-plug support for the SmartMedia
274 * socket.
277 static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
278 [0] = {
279 .name = "SmartMedia",
280 .nr_chips = 1,
281 .nr_map = smartmedia_map,
282 .options = NAND_SCAN_SILENT_NODEV,
283 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
284 .partitions = bast_default_nand_part,
286 [1] = {
287 .name = "chip0",
288 .nr_chips = 1,
289 .nr_map = chip0_map,
290 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
291 .partitions = bast_default_nand_part,
293 [2] = {
294 .name = "chip1",
295 .nr_chips = 1,
296 .nr_map = chip1_map,
297 .options = NAND_SCAN_SILENT_NODEV,
298 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
299 .partitions = bast_default_nand_part,
301 [3] = {
302 .name = "chip2",
303 .nr_chips = 1,
304 .nr_map = chip2_map,
305 .options = NAND_SCAN_SILENT_NODEV,
306 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
307 .partitions = bast_default_nand_part,
311 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
313 unsigned int tmp;
315 slot = set->nr_map[slot] & 3;
317 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
318 slot, set, set->nr_map);
320 tmp = __raw_readb(BAST_VA_CTRL2);
321 tmp &= BAST_CPLD_CTLR2_IDERST;
322 tmp |= slot;
323 tmp |= BAST_CPLD_CTRL2_WNAND;
325 pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
327 __raw_writeb(tmp, BAST_VA_CTRL2);
330 static struct s3c2410_platform_nand __initdata bast_nand_info = {
331 .tacls = 30,
332 .twrph0 = 60,
333 .twrph1 = 60,
334 .nr_sets = ARRAY_SIZE(bast_nand_sets),
335 .sets = bast_nand_sets,
336 .select_chip = bast_nand_select,
339 /* DM9000 */
341 static struct resource bast_dm9k_resource[] = {
342 [0] = {
343 .start = S3C2410_CS5 + BAST_PA_DM9000,
344 .end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
345 .flags = IORESOURCE_MEM,
347 [1] = {
348 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
349 .end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
350 .flags = IORESOURCE_MEM,
352 [2] = {
353 .start = IRQ_DM9000,
354 .end = IRQ_DM9000,
355 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
360 /* for the moment we limit ourselves to 16bit IO until some
361 * better IO routines can be written and tested
364 static struct dm9000_plat_data bast_dm9k_platdata = {
365 .flags = DM9000_PLATF_16BITONLY,
368 static struct platform_device bast_device_dm9k = {
369 .name = "dm9000",
370 .id = 0,
371 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
372 .resource = bast_dm9k_resource,
373 .dev = {
374 .platform_data = &bast_dm9k_platdata,
378 /* serial devices */
380 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
381 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
382 #define SERIAL_CLK (1843200)
384 static struct plat_serial8250_port bast_sio_data[] = {
385 [0] = {
386 .mapbase = SERIAL_BASE + 0x2f8,
387 .irq = IRQ_PCSERIAL1,
388 .flags = SERIAL_FLAGS,
389 .iotype = UPIO_MEM,
390 .regshift = 0,
391 .uartclk = SERIAL_CLK,
393 [1] = {
394 .mapbase = SERIAL_BASE + 0x3f8,
395 .irq = IRQ_PCSERIAL2,
396 .flags = SERIAL_FLAGS,
397 .iotype = UPIO_MEM,
398 .regshift = 0,
399 .uartclk = SERIAL_CLK,
404 static struct platform_device bast_sio = {
405 .name = "serial8250",
406 .id = PLAT8250_DEV_PLATFORM,
407 .dev = {
408 .platform_data = &bast_sio_data,
412 /* we have devices on the bus which cannot work much over the
413 * standard 100KHz i2c bus frequency
416 static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
417 .flags = 0,
418 .slave_addr = 0x10,
419 .frequency = 100*1000,
422 /* Asix AX88796 10/100 ethernet controller */
424 static struct ax_plat_data bast_asix_platdata = {
425 .flags = AXFLG_MAC_FROMDEV,
426 .wordlength = 2,
427 .dcr_val = 0x48,
428 .rcr_val = 0x40,
431 static struct resource bast_asix_resource[] = {
432 [0] = {
433 .start = S3C2410_CS5 + BAST_PA_ASIXNET,
434 .end = S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20) - 1,
435 .flags = IORESOURCE_MEM,
437 [1] = {
438 .start = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20),
439 .end = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20),
440 .flags = IORESOURCE_MEM,
442 [2] = {
443 .start = IRQ_ASIX,
444 .end = IRQ_ASIX,
445 .flags = IORESOURCE_IRQ
449 static struct platform_device bast_device_asix = {
450 .name = "ax88796",
451 .id = 0,
452 .num_resources = ARRAY_SIZE(bast_asix_resource),
453 .resource = bast_asix_resource,
454 .dev = {
455 .platform_data = &bast_asix_platdata
459 /* Asix AX88796 10/100 ethernet controller parallel port */
461 static struct resource bast_asixpp_resource[] = {
462 [0] = {
463 .start = S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20),
464 .end = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1b * 0x20) - 1,
465 .flags = IORESOURCE_MEM,
469 static struct platform_device bast_device_axpp = {
470 .name = "ax88796-pp",
471 .id = 0,
472 .num_resources = ARRAY_SIZE(bast_asixpp_resource),
473 .resource = bast_asixpp_resource,
476 /* LCD/VGA controller */
478 static struct s3c2410fb_display __initdata bast_lcd_info[] = {
480 .type = S3C2410_LCDCON1_TFT,
481 .width = 640,
482 .height = 480,
484 .pixclock = 33333,
485 .xres = 640,
486 .yres = 480,
487 .bpp = 4,
488 .left_margin = 40,
489 .right_margin = 20,
490 .hsync_len = 88,
491 .upper_margin = 30,
492 .lower_margin = 32,
493 .vsync_len = 3,
495 .lcdcon5 = 0x00014b02,
498 .type = S3C2410_LCDCON1_TFT,
499 .width = 640,
500 .height = 480,
502 .pixclock = 33333,
503 .xres = 640,
504 .yres = 480,
505 .bpp = 8,
506 .left_margin = 40,
507 .right_margin = 20,
508 .hsync_len = 88,
509 .upper_margin = 30,
510 .lower_margin = 32,
511 .vsync_len = 3,
513 .lcdcon5 = 0x00014b02,
516 .type = S3C2410_LCDCON1_TFT,
517 .width = 640,
518 .height = 480,
520 .pixclock = 33333,
521 .xres = 640,
522 .yres = 480,
523 .bpp = 16,
524 .left_margin = 40,
525 .right_margin = 20,
526 .hsync_len = 88,
527 .upper_margin = 30,
528 .lower_margin = 32,
529 .vsync_len = 3,
531 .lcdcon5 = 0x00014b02,
535 /* LCD/VGA controller */
537 static struct s3c2410fb_mach_info __initdata bast_fb_info = {
539 .displays = bast_lcd_info,
540 .num_displays = ARRAY_SIZE(bast_lcd_info),
541 .default_display = 1,
544 /* I2C devices fitted. */
546 static struct i2c_board_info bast_i2c_devs[] __initdata = {
548 I2C_BOARD_INFO("tlv320aic23", 0x1a),
549 }, {
550 I2C_BOARD_INFO("simtec-pmu", 0x6b),
551 }, {
552 I2C_BOARD_INFO("ch7013", 0x75),
556 static struct s3c_hwmon_pdata bast_hwmon_info = {
557 /* LCD contrast (0-6.6V) */
558 .in[0] = &(struct s3c_hwmon_chcfg) {
559 .name = "lcd-contrast",
560 .mult = 3300,
561 .div = 512,
563 /* LED current feedback */
564 .in[1] = &(struct s3c_hwmon_chcfg) {
565 .name = "led-feedback",
566 .mult = 3300,
567 .div = 1024,
569 /* LCD feedback (0-6.6V) */
570 .in[2] = &(struct s3c_hwmon_chcfg) {
571 .name = "lcd-feedback",
572 .mult = 3300,
573 .div = 512,
575 /* Vcore (1.8-2.0V), Vref 3.3V */
576 .in[3] = &(struct s3c_hwmon_chcfg) {
577 .name = "vcore",
578 .mult = 3300,
579 .div = 1024,
583 /* Standard BAST devices */
584 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
586 static struct platform_device *bast_devices[] __initdata = {
587 &s3c_device_ohci,
588 &s3c_device_lcd,
589 &s3c_device_wdt,
590 &s3c_device_i2c0,
591 &s3c_device_rtc,
592 &s3c_device_nand,
593 &s3c_device_adc,
594 &s3c_device_hwmon,
595 &bast_device_dm9k,
596 &bast_device_asix,
597 &bast_device_axpp,
598 &bast_sio,
601 static struct clk *bast_clocks[] __initdata = {
602 &s3c24xx_dclk0,
603 &s3c24xx_dclk1,
604 &s3c24xx_clkout0,
605 &s3c24xx_clkout1,
606 &s3c24xx_uclk,
609 static struct s3c_cpufreq_board __initdata bast_cpufreq = {
610 .refresh = 7800, /* 7.8usec */
611 .auto_io = 1,
612 .need_io = 1,
615 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
616 .have_mic = 1,
617 .have_lout = 1,
620 static void __init bast_map_io(void)
622 /* initialise the clocks */
624 s3c24xx_dclk0.parent = &clk_upll;
625 s3c24xx_dclk0.rate = 12*1000*1000;
627 s3c24xx_dclk1.parent = &clk_upll;
628 s3c24xx_dclk1.rate = 24*1000*1000;
630 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
631 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
633 s3c24xx_uclk.parent = &s3c24xx_clkout1;
635 s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks));
637 s3c_device_hwmon.dev.platform_data = &bast_hwmon_info;
639 s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
640 s3c24xx_init_clocks(0);
641 s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
644 static void __init bast_init(void)
646 sysdev_class_register(&bast_pm_sysclass);
647 sysdev_register(&bast_pm_sysdev);
649 s3c_i2c0_set_platdata(&bast_i2c_info);
650 s3c_nand_set_platdata(&bast_nand_info);
651 s3c24xx_fb_set_platdata(&bast_fb_info);
652 platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
654 i2c_register_board_info(0, bast_i2c_devs,
655 ARRAY_SIZE(bast_i2c_devs));
657 usb_simtec_init();
658 nor_simtec_init();
659 simtec_audio_add(NULL, true, &bast_audio);
661 s3c_cpufreq_setboard(&bast_cpufreq);
664 MACHINE_START(BAST, "Simtec-BAST")
665 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
666 .phys_io = S3C2410_PA_UART,
667 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
668 .boot_params = S3C2410_SDRAM_PA + 0x100,
669 .map_io = bast_map_io,
670 .init_irq = s3c24xx_init_irq,
671 .init_machine = bast_init,
672 .timer = &s3c24xx_timer,
673 MACHINE_END