1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
3 * Copyright (c) 2003-2005 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/platform_device.h>
20 #include <linux/dm9000.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/map.h>
24 #include <asm/mach/irq.h>
26 #include <asm/arch/bast-map.h>
27 #include <asm/arch/bast-irq.h>
28 #include <asm/arch/bast-cpld.h>
30 #include <asm/hardware.h>
33 #include <asm/mach-types.h>
35 //#include <asm/debug-ll.h>
36 #include <asm/arch/regs-serial.h>
37 #include <asm/arch/regs-gpio.h>
38 #include <asm/arch/regs-mem.h>
39 #include <asm/arch/regs-lcd.h>
41 #include <asm/arch/nand.h>
42 #include <asm/arch/iic.h>
43 #include <asm/arch/fb.h>
45 #include <linux/mtd/mtd.h>
46 #include <linux/mtd/nand.h>
47 #include <linux/mtd/nand_ecc.h>
48 #include <linux/mtd/partitions.h>
50 #include <linux/serial_8250.h>
55 #include "usb-simtec.h"
57 #define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
59 /* macros for virtual address mods for the io space entries */
60 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
61 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
62 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
63 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
65 /* macros to modify the physical addresses for io space */
67 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
68 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
69 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
70 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
72 static struct map_desc bast_iodesc[] __initdata = {
75 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
76 .pfn = PA_CS2(BAST_PA_ISAIO),
80 .virtual = (u32)S3C24XX_VA_ISA_WORD,
81 .pfn = PA_CS3(BAST_PA_ISAIO),
85 /* bast CPLD control registers, and external interrupt controls */
87 .virtual = (u32)BAST_VA_CTRL1,
88 .pfn = __phys_to_pfn(BAST_PA_CTRL1),
92 .virtual = (u32)BAST_VA_CTRL2,
93 .pfn = __phys_to_pfn(BAST_PA_CTRL2),
97 .virtual = (u32)BAST_VA_CTRL3,
98 .pfn = __phys_to_pfn(BAST_PA_CTRL3),
102 .virtual = (u32)BAST_VA_CTRL4,
103 .pfn = __phys_to_pfn(BAST_PA_CTRL4),
109 .virtual = (u32)BAST_VA_PC104_IRQREQ,
110 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
114 .virtual = (u32)BAST_VA_PC104_IRQRAW,
115 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
119 .virtual = (u32)BAST_VA_PC104_IRQMASK,
120 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
125 /* peripheral space... one for each of fast/slow/byte/16bit */
126 /* note, ide is only decoded in word space, even though some registers
130 { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
131 { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
132 { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
133 { VA_C2(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
134 { VA_C2(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
135 { VA_C2(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
136 { VA_C2(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
139 { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
140 { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
141 { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
142 { VA_C3(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
143 { VA_C3(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
144 { VA_C3(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
145 { VA_C3(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
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 { VA_C4(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
152 { VA_C4(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
153 { VA_C4(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
154 { VA_C4(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
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 },
160 { VA_C5(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
161 { VA_C5(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
162 { VA_C5(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
163 { VA_C5(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
166 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
167 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
168 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
170 static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
186 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
193 .clocks = bast_serial_clocks,
194 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
202 .clocks = bast_serial_clocks,
203 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
205 /* port 2 is not actually used */
212 .clocks = bast_serial_clocks,
213 .clocks_size = ARRAY_SIZE(bast_serial_clocks),
217 /* NOR Flash on BAST board */
219 static struct resource bast_nor_resource[] = {
221 .start = S3C2410_CS1 + 0x4000000,
222 .end = S3C2410_CS1 + 0x4000000 + (32*1024*1024) - 1,
223 .flags = IORESOURCE_MEM,
227 static struct platform_device bast_device_nor = {
230 .num_resources = ARRAY_SIZE(bast_nor_resource),
231 .resource = bast_nor_resource,
234 /* NAND Flash on BAST board */
237 static int smartmedia_map[] = { 0 };
238 static int chip0_map[] = { 1 };
239 static int chip1_map[] = { 2 };
240 static int chip2_map[] = { 3 };
242 static struct mtd_partition bast_default_nand_part[] = {
244 .name = "Boot Agent",
250 .size = SZ_4M - SZ_16K,
256 .size = MTDPART_SIZ_FULL,
260 /* the bast has 4 selectable slots for nand-flash, the three
261 * on-board chip areas, as well as the external SmartMedia
264 * Note, there is no current hot-plug support for the SmartMedia
268 static struct s3c2410_nand_set bast_nand_sets[] = {
270 .name = "SmartMedia",
272 .nr_map = smartmedia_map,
273 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
274 .partitions = bast_default_nand_part,
280 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
281 .partitions = bast_default_nand_part,
287 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
288 .partitions = bast_default_nand_part,
294 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
295 .partitions = bast_default_nand_part,
299 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
303 slot = set->nr_map[slot] & 3;
305 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
306 slot, set, set->nr_map);
308 tmp = __raw_readb(BAST_VA_CTRL2);
309 tmp &= BAST_CPLD_CTLR2_IDERST;
311 tmp |= BAST_CPLD_CTRL2_WNAND;
313 pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
315 __raw_writeb(tmp, BAST_VA_CTRL2);
318 static struct s3c2410_platform_nand bast_nand_info = {
322 .nr_sets = ARRAY_SIZE(bast_nand_sets),
323 .sets = bast_nand_sets,
324 .select_chip = bast_nand_select,
329 static struct resource bast_dm9k_resource[] = {
331 .start = S3C2410_CS5 + BAST_PA_DM9000,
332 .end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
333 .flags = IORESOURCE_MEM,
336 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
337 .end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
338 .flags = IORESOURCE_MEM,
343 .flags = IORESOURCE_IRQ,
348 /* for the moment we limit ourselves to 16bit IO until some
349 * better IO routines can be written and tested
352 static struct dm9000_plat_data bast_dm9k_platdata = {
353 .flags = DM9000_PLATF_16BITONLY,
356 static struct platform_device bast_device_dm9k = {
359 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
360 .resource = bast_dm9k_resource,
362 .platform_data = &bast_dm9k_platdata,
368 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
369 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
370 #define SERIAL_CLK (1843200)
372 static struct plat_serial8250_port bast_sio_data[] = {
374 .mapbase = SERIAL_BASE + 0x2f8,
375 .irq = IRQ_PCSERIAL1,
376 .flags = SERIAL_FLAGS,
379 .uartclk = SERIAL_CLK,
382 .mapbase = SERIAL_BASE + 0x3f8,
383 .irq = IRQ_PCSERIAL2,
384 .flags = SERIAL_FLAGS,
387 .uartclk = SERIAL_CLK,
392 static struct platform_device bast_sio = {
393 .name = "serial8250",
394 .id = PLAT8250_DEV_PLATFORM,
396 .platform_data = &bast_sio_data,
400 /* we have devices on the bus which cannot work much over the
401 * standard 100KHz i2c bus frequency
404 static struct s3c2410_platform_i2c bast_i2c_info = {
407 .bus_freq = 100*1000,
408 .max_freq = 130*1000,
412 static struct s3c2410fb_mach_info __initdata bast_lcd_info = {
435 .lcdcon1 = 0x00000176,
436 .lcdcon2 = 0x1d77c7c2,
437 .lcdcon3 = 0x013a7f13,
438 .lcdcon4 = 0x00000057,
439 .lcdcon5 = 0x00014b02,
443 /* Standard BAST devices */
445 static struct platform_device *bast_devices[] __initdata = {
458 static struct clk *bast_clocks[] = {
466 static struct s3c24xx_board bast_board __initdata = {
467 .devices = bast_devices,
468 .devices_count = ARRAY_SIZE(bast_devices),
469 .clocks = bast_clocks,
470 .clocks_count = ARRAY_SIZE(bast_clocks),
473 static void __init bast_map_io(void)
475 /* initialise the clocks */
477 s3c24xx_dclk0.parent = NULL;
478 s3c24xx_dclk0.rate = 12*1000*1000;
480 s3c24xx_dclk1.parent = NULL;
481 s3c24xx_dclk1.rate = 24*1000*1000;
483 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
484 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
486 s3c24xx_uclk.parent = &s3c24xx_clkout1;
488 s3c_device_nand.dev.platform_data = &bast_nand_info;
489 s3c_device_i2c.dev.platform_data = &bast_i2c_info;
491 s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
492 s3c24xx_init_clocks(0);
493 s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
494 s3c24xx_set_board(&bast_board);
498 static void __init bast_init(void)
500 s3c24xx_fb_set_platdata(&bast_lcd_info);
503 MACHINE_START(BAST, "Simtec-BAST")
504 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
505 .phys_io = S3C2410_PA_UART,
506 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
507 .boot_params = S3C2410_SDRAM_PA + 0x100,
508 .map_io = bast_map_io,
509 .init_irq = s3c24xx_init_irq,
510 .init_machine = bast_init,
511 .timer = &s3c24xx_timer,