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 * 14-Sep-2004 BJD USB power control
14 * 20-Aug-2004 BJD Added s3c2410_board struct
15 * 18-Aug-2004 BJD Added platform devices from default set
16 * 16-May-2003 BJD Created initial version
17 * 16-Aug-2003 BJD Fixed header files and copyright, added URL
18 * 05-Sep-2003 BJD Moved to v2.6 kernel
19 * 06-Jan-2003 BJD Updates for <arch/map.h>
20 * 18-Jan-2003 BJD Added serial port configuration
21 * 05-Oct-2004 BJD Power management code
22 * 04-Nov-2004 BJD Updated serial port clocks
23 * 04-Jan-2005 BJD New uart init call
24 * 10-Jan-2005 BJD Removed include of s3c2410.h
25 * 14-Jan-2005 BJD Add support for muitlple NAND devices
26 * 03-Mar-2005 BJD Ensured that bast-cpld.h is included
27 * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
28 * 14-Mar-2005 BJD Updated for __iomem changes
29 * 22-Jun-2005 BJD Added DM9000 platform information
30 * 28-Jun-2005 BJD Moved pm functionality out to common code
31 * 17-Jul-2005 BJD Changed to platform device for SuperIO 16550s
32 * 25-Jul-2005 BJD Removed ASIX static mappings
33 * 27-Jul-2005 BJD Ensure maximum frequency of i2c bus
36 #include <linux/kernel.h>
37 #include <linux/types.h>
38 #include <linux/interrupt.h>
39 #include <linux/list.h>
40 #include <linux/timer.h>
41 #include <linux/init.h>
42 #include <linux/device.h>
43 #include <linux/dm9000.h>
45 #include <asm/mach/arch.h>
46 #include <asm/mach/map.h>
47 #include <asm/mach/irq.h>
49 #include <asm/arch/bast-map.h>
50 #include <asm/arch/bast-irq.h>
51 #include <asm/arch/bast-cpld.h>
53 #include <asm/hardware.h>
56 #include <asm/mach-types.h>
58 //#include <asm/debug-ll.h>
59 #include <asm/arch/regs-serial.h>
60 #include <asm/arch/regs-gpio.h>
61 #include <asm/arch/regs-mem.h>
62 #include <asm/arch/regs-lcd.h>
63 #include <asm/arch/nand.h>
64 #include <asm/arch/iic.h>
66 #include <linux/mtd/mtd.h>
67 #include <linux/mtd/nand.h>
68 #include <linux/mtd/nand_ecc.h>
69 #include <linux/mtd/partitions.h>
71 #include <linux/serial_8250.h>
76 #include "usb-simtec.h"
78 #define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
80 /* macros for virtual address mods for the io space entries */
81 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
82 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
83 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
84 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
86 /* macros to modify the physical addresses for io space */
88 #define PA_CS2(item) ((item) + S3C2410_CS2)
89 #define PA_CS3(item) ((item) + S3C2410_CS3)
90 #define PA_CS4(item) ((item) + S3C2410_CS4)
91 #define PA_CS5(item) ((item) + S3C2410_CS5)
93 static struct map_desc bast_iodesc[] __initdata = {
96 { (u32)S3C24XX_VA_ISA_BYTE, PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
97 { (u32)S3C24XX_VA_ISA_WORD, PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
99 /* we could possibly compress the next set down into a set of smaller tables
100 * pagetables, but that would mean using an L2 section, and it still means
101 * we cannot actually feed the same register to an LDR due to 16K spacing
104 /* bast CPLD control registers, and external interrupt controls */
105 { (u32)BAST_VA_CTRL1, BAST_PA_CTRL1, SZ_1M, MT_DEVICE },
106 { (u32)BAST_VA_CTRL2, BAST_PA_CTRL2, SZ_1M, MT_DEVICE },
107 { (u32)BAST_VA_CTRL3, BAST_PA_CTRL3, SZ_1M, MT_DEVICE },
108 { (u32)BAST_VA_CTRL4, BAST_PA_CTRL4, SZ_1M, MT_DEVICE },
111 { (u32)BAST_VA_PC104_IRQREQ, BAST_PA_PC104_IRQREQ, SZ_1M, MT_DEVICE },
112 { (u32)BAST_VA_PC104_IRQRAW, BAST_PA_PC104_IRQRAW, SZ_1M, MT_DEVICE },
113 { (u32)BAST_VA_PC104_IRQMASK, BAST_PA_PC104_IRQMASK, SZ_1M, MT_DEVICE },
115 /* peripheral space... one for each of fast/slow/byte/16bit */
116 /* note, ide is only decoded in word space, even though some registers
120 { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
121 { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
122 { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
123 { VA_C2(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
124 { VA_C2(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
125 { VA_C2(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
126 { VA_C2(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
129 { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
130 { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
131 { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
132 { VA_C3(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
133 { VA_C3(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
134 { VA_C3(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
135 { VA_C3(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
138 { VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
139 { VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
140 { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
141 { VA_C4(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
142 { VA_C4(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
143 { VA_C4(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
144 { VA_C4(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
147 { VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
148 { VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
149 { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
150 { VA_C5(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
151 { VA_C5(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
152 { VA_C5(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
153 { VA_C5(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
156 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
157 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
158 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
160 static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
176 static struct s3c2410_uartcfg bast_uartcfgs[] = {
183 .clocks = bast_serial_clocks,
184 .clocks_size = ARRAY_SIZE(bast_serial_clocks)
192 .clocks = bast_serial_clocks,
193 .clocks_size = ARRAY_SIZE(bast_serial_clocks)
195 /* port 2 is not actually used */
202 .clocks = bast_serial_clocks,
203 .clocks_size = ARRAY_SIZE(bast_serial_clocks)
207 /* NOR Flash on BAST board */
209 static struct resource bast_nor_resource[] = {
211 .start = S3C2410_CS1 + 0x4000000,
212 .end = S3C2410_CS1 + 0x4000000 + (32*1024*1024) - 1,
213 .flags = IORESOURCE_MEM,
217 static struct platform_device bast_device_nor = {
220 .num_resources = ARRAY_SIZE(bast_nor_resource),
221 .resource = bast_nor_resource,
224 /* NAND Flash on BAST board */
227 static int smartmedia_map[] = { 0 };
228 static int chip0_map[] = { 1 };
229 static int chip1_map[] = { 2 };
230 static int chip2_map[] = { 3 };
232 struct mtd_partition bast_default_nand_part[] = {
234 .name = "Boot Agent",
240 .size = SZ_4M - SZ_16K,
246 .size = MTDPART_SIZ_FULL,
250 /* the bast has 4 selectable slots for nand-flash, the three
251 * on-board chip areas, as well as the external SmartMedia
254 * Note, there is no current hot-plug support for the SmartMedia
258 static struct s3c2410_nand_set bast_nand_sets[] = {
260 .name = "SmartMedia",
262 .nr_map = smartmedia_map,
263 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
264 .partitions = bast_default_nand_part
270 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
271 .partitions = bast_default_nand_part
277 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
278 .partitions = bast_default_nand_part
284 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
285 .partitions = bast_default_nand_part
289 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
293 slot = set->nr_map[slot] & 3;
295 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
296 slot, set, set->nr_map);
298 tmp = __raw_readb(BAST_VA_CTRL2);
299 tmp &= BAST_CPLD_CTLR2_IDERST;
301 tmp |= BAST_CPLD_CTRL2_WNAND;
303 pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
305 __raw_writeb(tmp, BAST_VA_CTRL2);
308 static struct s3c2410_platform_nand bast_nand_info = {
312 .nr_sets = ARRAY_SIZE(bast_nand_sets),
313 .sets = bast_nand_sets,
314 .select_chip = bast_nand_select,
319 static struct resource bast_dm9k_resource[] = {
321 .start = S3C2410_CS5 + BAST_PA_DM9000,
322 .end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
323 .flags = IORESOURCE_MEM
326 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
327 .end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
328 .flags = IORESOURCE_MEM
333 .flags = IORESOURCE_IRQ
338 /* for the moment we limit ourselves to 16bit IO until some
339 * better IO routines can be written and tested
342 struct dm9000_plat_data bast_dm9k_platdata = {
343 .flags = DM9000_PLATF_16BITONLY
346 static struct platform_device bast_device_dm9k = {
349 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
350 .resource = bast_dm9k_resource,
352 .platform_data = &bast_dm9k_platdata,
358 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
359 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
360 #define SERIAL_CLK (1843200)
362 static struct plat_serial8250_port bast_sio_data[] = {
364 .mapbase = SERIAL_BASE + 0x2f8,
365 .irq = IRQ_PCSERIAL1,
366 .flags = SERIAL_FLAGS,
369 .uartclk = SERIAL_CLK,
372 .mapbase = SERIAL_BASE + 0x3f8,
373 .irq = IRQ_PCSERIAL2,
374 .flags = SERIAL_FLAGS,
377 .uartclk = SERIAL_CLK,
382 static struct platform_device bast_sio = {
383 .name = "serial8250",
386 .platform_data = &bast_sio_data,
390 /* we have devices on the bus which cannot work much over the
391 * standard 100KHz i2c bus frequency
394 static struct s3c2410_platform_i2c bast_i2c_info = {
397 .bus_freq = 100*1000,
398 .max_freq = 130*1000,
401 /* Standard BAST devices */
403 static struct platform_device *bast_devices[] __initdata = {
416 static struct clk *bast_clocks[] = {
424 static struct s3c24xx_board bast_board __initdata = {
425 .devices = bast_devices,
426 .devices_count = ARRAY_SIZE(bast_devices),
427 .clocks = bast_clocks,
428 .clocks_count = ARRAY_SIZE(bast_clocks)
431 void __init bast_map_io(void)
433 /* initialise the clocks */
435 s3c24xx_dclk0.parent = NULL;
436 s3c24xx_dclk0.rate = 12*1000*1000;
438 s3c24xx_dclk1.parent = NULL;
439 s3c24xx_dclk1.rate = 24*1000*1000;
441 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
442 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
444 s3c24xx_uclk.parent = &s3c24xx_clkout1;
446 s3c_device_nand.dev.platform_data = &bast_nand_info;
447 s3c_device_i2c.dev.platform_data = &bast_i2c_info;
449 s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
450 s3c24xx_init_clocks(0);
451 s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
452 s3c24xx_set_board(&bast_board);
457 MACHINE_START(BAST, "Simtec-BAST")
458 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
459 .phys_ram = S3C2410_SDRAM_PA,
460 .phys_io = S3C2410_PA_UART,
461 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
462 .boot_params = S3C2410_SDRAM_PA + 0x100,
463 .map_io = bast_map_io,
464 .init_irq = s3c24xx_init_irq,
465 .timer = &s3c24xx_timer,