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-2006 BJD Updated for __iomem changes
29 * 22-Jun-2006 BJD Added DM9000 platform information
30 * 28-Jun-2006 BJD Moved pm functionality out to common code
33 #include <linux/kernel.h>
34 #include <linux/types.h>
35 #include <linux/interrupt.h>
36 #include <linux/list.h>
37 #include <linux/timer.h>
38 #include <linux/init.h>
39 #include <linux/device.h>
40 #include <linux/dm9000.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
46 #include <asm/arch/bast-map.h>
47 #include <asm/arch/bast-irq.h>
48 #include <asm/arch/bast-cpld.h>
50 #include <asm/hardware.h>
53 #include <asm/mach-types.h>
55 //#include <asm/debug-ll.h>
56 #include <asm/arch/regs-serial.h>
57 #include <asm/arch/regs-gpio.h>
58 #include <asm/arch/regs-mem.h>
59 #include <asm/arch/regs-lcd.h>
60 #include <asm/arch/nand.h>
62 #include <linux/mtd/mtd.h>
63 #include <linux/mtd/nand.h>
64 #include <linux/mtd/nand_ecc.h>
65 #include <linux/mtd/partitions.h>
70 #include "usb-simtec.h"
72 #define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
74 /* macros for virtual address mods for the io space entries */
75 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
76 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
77 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
78 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
80 /* macros to modify the physical addresses for io space */
82 #define PA_CS2(item) ((item) + S3C2410_CS2)
83 #define PA_CS3(item) ((item) + S3C2410_CS3)
84 #define PA_CS4(item) ((item) + S3C2410_CS4)
85 #define PA_CS5(item) ((item) + S3C2410_CS5)
87 static struct map_desc bast_iodesc[] __initdata = {
90 { (u32)S3C24XX_VA_ISA_BYTE, PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
91 { (u32)S3C24XX_VA_ISA_WORD, PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
93 /* we could possibly compress the next set down into a set of smaller tables
94 * pagetables, but that would mean using an L2 section, and it still means
95 * we cannot actually feed the same register to an LDR due to 16K spacing
98 /* bast CPLD control registers, and external interrupt controls */
99 { (u32)BAST_VA_CTRL1, BAST_PA_CTRL1, SZ_1M, MT_DEVICE },
100 { (u32)BAST_VA_CTRL2, BAST_PA_CTRL2, SZ_1M, MT_DEVICE },
101 { (u32)BAST_VA_CTRL3, BAST_PA_CTRL3, SZ_1M, MT_DEVICE },
102 { (u32)BAST_VA_CTRL4, BAST_PA_CTRL4, SZ_1M, MT_DEVICE },
105 { (u32)BAST_VA_PC104_IRQREQ, BAST_PA_PC104_IRQREQ, SZ_1M, MT_DEVICE },
106 { (u32)BAST_VA_PC104_IRQRAW, BAST_PA_PC104_IRQRAW, SZ_1M, MT_DEVICE },
107 { (u32)BAST_VA_PC104_IRQMASK, BAST_PA_PC104_IRQMASK, SZ_1M, MT_DEVICE },
109 /* peripheral space... one for each of fast/slow/byte/16bit */
110 /* note, ide is only decoded in word space, even though some registers
114 { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
115 { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
116 { VA_C2(BAST_VA_ASIXNET), PA_CS3(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
117 { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
118 { VA_C2(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
119 { VA_C2(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
120 { VA_C2(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
121 { VA_C2(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
124 { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
125 { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
126 { VA_C3(BAST_VA_ASIXNET), PA_CS3(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
127 { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
128 { VA_C3(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
129 { VA_C3(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
130 { VA_C3(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
131 { VA_C3(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
134 { VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
135 { VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
136 { VA_C4(BAST_VA_ASIXNET), PA_CS5(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
137 { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
138 { VA_C4(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
139 { VA_C4(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
140 { VA_C4(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
141 { VA_C4(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
144 { VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
145 { VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
146 { VA_C5(BAST_VA_ASIXNET), PA_CS5(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
147 { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
148 { VA_C5(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
149 { VA_C5(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
150 { VA_C5(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
151 { VA_C5(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
154 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
155 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
156 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
158 static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
174 static struct s3c2410_uartcfg bast_uartcfgs[] = {
181 .clocks = bast_serial_clocks,
182 .clocks_size = ARRAY_SIZE(bast_serial_clocks)
190 .clocks = bast_serial_clocks,
191 .clocks_size = ARRAY_SIZE(bast_serial_clocks)
193 /* port 2 is not actually used */
200 .clocks = bast_serial_clocks,
201 .clocks_size = ARRAY_SIZE(bast_serial_clocks)
205 /* NOR Flash on BAST board */
207 static struct resource bast_nor_resource[] = {
209 .start = S3C2410_CS1 + 0x4000000,
210 .end = S3C2410_CS1 + 0x4000000 + (32*1024*1024) - 1,
211 .flags = IORESOURCE_MEM,
215 static struct platform_device bast_device_nor = {
218 .num_resources = ARRAY_SIZE(bast_nor_resource),
219 .resource = bast_nor_resource,
222 /* NAND Flash on BAST board */
225 static int smartmedia_map[] = { 0 };
226 static int chip0_map[] = { 1 };
227 static int chip1_map[] = { 2 };
228 static int chip2_map[] = { 3 };
230 struct mtd_partition bast_default_nand_part[] = {
232 .name = "Boot Agent",
238 .size = SZ_4M - SZ_16K,
244 .size = MTDPART_SIZ_FULL,
248 /* the bast has 4 selectable slots for nand-flash, the three
249 * on-board chip areas, as well as the external SmartMedia
252 * Note, there is no current hot-plug support for the SmartMedia
256 static struct s3c2410_nand_set bast_nand_sets[] = {
258 .name = "SmartMedia",
260 .nr_map = smartmedia_map,
261 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
262 .partitions = bast_default_nand_part
268 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
269 .partitions = bast_default_nand_part
275 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
276 .partitions = bast_default_nand_part
282 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
283 .partitions = bast_default_nand_part
287 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
291 slot = set->nr_map[slot] & 3;
293 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
294 slot, set, set->nr_map);
296 tmp = __raw_readb(BAST_VA_CTRL2);
297 tmp &= BAST_CPLD_CTLR2_IDERST;
299 tmp |= BAST_CPLD_CTRL2_WNAND;
301 pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
303 __raw_writeb(tmp, BAST_VA_CTRL2);
306 static struct s3c2410_platform_nand bast_nand_info = {
310 .nr_sets = ARRAY_SIZE(bast_nand_sets),
311 .sets = bast_nand_sets,
312 .select_chip = bast_nand_select,
317 static struct resource bast_dm9k_resource[] = {
319 .start = S3C2410_CS5 + BAST_PA_DM9000,
320 .end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
321 .flags = IORESOURCE_MEM
324 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
325 .end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
326 .flags = IORESOURCE_MEM
331 .flags = IORESOURCE_IRQ
336 /* for the moment we limit ourselves to 16bit IO until some
337 * better IO routines can be written and tested
340 struct dm9000_plat_data bast_dm9k_platdata = {
341 .flags = DM9000_PLATF_16BITONLY
344 static struct platform_device bast_device_dm9k = {
347 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
348 .resource = bast_dm9k_resource,
350 .platform_data = &bast_dm9k_platdata,
355 /* Standard BAST devices */
357 static struct platform_device *bast_devices[] __initdata = {
369 static struct clk *bast_clocks[] = {
377 static struct s3c24xx_board bast_board __initdata = {
378 .devices = bast_devices,
379 .devices_count = ARRAY_SIZE(bast_devices),
380 .clocks = bast_clocks,
381 .clocks_count = ARRAY_SIZE(bast_clocks)
384 void __init bast_map_io(void)
386 /* initialise the clocks */
388 s3c24xx_dclk0.parent = NULL;
389 s3c24xx_dclk0.rate = 12*1000*1000;
391 s3c24xx_dclk1.parent = NULL;
392 s3c24xx_dclk1.rate = 24*1000*1000;
394 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
395 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
397 s3c24xx_uclk.parent = &s3c24xx_clkout1;
399 s3c_device_nand.dev.platform_data = &bast_nand_info;
401 s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
402 s3c24xx_init_clocks(0);
403 s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
404 s3c24xx_set_board(&bast_board);
409 MACHINE_START(BAST, "Simtec-BAST")
410 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
411 .phys_ram = S3C2410_SDRAM_PA,
412 .phys_io = S3C2410_PA_UART,
413 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
414 .boot_params = S3C2410_SDRAM_PA + 0x100,
415 .map_io = bast_map_io,
416 .init_irq = s3c24xx_init_irq,
417 .timer = &s3c24xx_timer,