1 /* linux/arch/arm/mach-s3c2410/mach-anubis.c
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Ben Dooks <ben@simtec.co.uk>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 * 02-May-2005 BJD Copied from mach-bast.c
17 #include <linux/kernel.h>
18 #include <linux/types.h>
19 #include <linux/interrupt.h>
20 #include <linux/list.h>
21 #include <linux/timer.h>
22 #include <linux/init.h>
23 #include <linux/device.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/irq.h>
29 #include <asm/arch/anubis-map.h>
30 #include <asm/arch/anubis-irq.h>
31 #include <asm/arch/anubis-cpld.h>
33 #include <asm/hardware.h>
36 #include <asm/mach-types.h>
38 #include <asm/arch/regs-serial.h>
39 #include <asm/arch/regs-gpio.h>
40 #include <asm/arch/regs-mem.h>
41 #include <asm/arch/regs-lcd.h>
42 #include <asm/arch/nand.h>
44 #include <linux/mtd/mtd.h>
45 #include <linux/mtd/nand.h>
46 #include <linux/mtd/nand_ecc.h>
47 #include <linux/mtd/partitions.h>
53 #define COPYRIGHT ", (c) 2005 Simtec Electronics"
55 static struct map_desc anubis_iodesc[] __initdata = {
58 { (u32)S3C24XX_VA_ISA_BYTE, 0x0, SZ_16M, MT_DEVICE },
59 { (u32)S3C24XX_VA_ISA_WORD, 0x0, SZ_16M, MT_DEVICE },
61 /* we could possibly compress the next set down into a set of smaller tables
62 * pagetables, but that would mean using an L2 section, and it still means
63 * we cannot actually feed the same register to an LDR due to 16K spacing
66 /* CPLD control registers */
68 { (u32)ANUBIS_VA_CTRL1, ANUBIS_PA_CTRL1, SZ_4K, MT_DEVICE },
69 { (u32)ANUBIS_VA_CTRL2, ANUBIS_PA_CTRL2, SZ_4K, MT_DEVICE },
73 { (u32)ANUBIS_IDEPRI, S3C2410_CS3, SZ_1M, MT_DEVICE },
74 { (u32)ANUBIS_IDEPRIAUX, S3C2410_CS3+(1<<26), SZ_1M, MT_DEVICE },
76 { (u32)ANUBIS_IDESEC, S3C2410_CS4, SZ_1M, MT_DEVICE },
77 { (u32)ANUBIS_IDESECAUX, S3C2410_CS4+(1<<26), SZ_1M, MT_DEVICE },
80 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
81 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
82 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
84 static struct s3c24xx_uart_clksrc anubis_serial_clocks[] = {
100 static struct s3c2410_uartcfg anubis_uartcfgs[] = {
107 .clocks = anubis_serial_clocks,
108 .clocks_size = ARRAY_SIZE(anubis_serial_clocks)
116 .clocks = anubis_serial_clocks,
117 .clocks_size = ARRAY_SIZE(anubis_serial_clocks)
121 /* NAND Flash on Anubis board */
123 static int external_map[] = { 2 };
124 static int chip0_map[] = { 0 };
125 static int chip1_map[] = { 1 };
127 struct mtd_partition anubis_default_nand_part[] = {
129 .name = "Boot Agent",
135 .size = SZ_4M - SZ_16K,
141 .size = SZ_32M - SZ_4M,
146 .size = MTDPART_SIZ_FULL,
150 /* the Anubis has 3 selectable slots for nand-flash, the two
151 * on-board chip areas, as well as the external slot.
153 * Note, there is no current hot-plug support for the External
157 static struct s3c2410_nand_set anubis_nand_sets[] = {
161 .nr_map = external_map,
162 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
163 .partitions = anubis_default_nand_part
169 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
170 .partitions = anubis_default_nand_part
176 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
177 .partitions = anubis_default_nand_part
181 static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
185 slot = set->nr_map[slot] & 3;
187 pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
188 slot, set, set->nr_map);
190 tmp = __raw_readb(ANUBIS_VA_CTRL1);
191 tmp &= ~ANUBIS_CTRL1_NANDSEL;
194 pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
196 __raw_writeb(tmp, ANUBIS_VA_CTRL1);
199 static struct s3c2410_platform_nand anubis_nand_info = {
203 .nr_sets = ARRAY_SIZE(anubis_nand_sets),
204 .sets = anubis_nand_sets,
205 .select_chip = anubis_nand_select,
209 /* Standard Anubis devices */
211 static struct platform_device *anubis_devices[] __initdata = {
220 static struct clk *anubis_clocks[] = {
228 static struct s3c24xx_board anubis_board __initdata = {
229 .devices = anubis_devices,
230 .devices_count = ARRAY_SIZE(anubis_devices),
231 .clocks = anubis_clocks,
232 .clocks_count = ARRAY_SIZE(anubis_clocks)
235 void __init anubis_map_io(void)
237 /* initialise the clocks */
239 s3c24xx_dclk0.parent = NULL;
240 s3c24xx_dclk0.rate = 12*1000*1000;
242 s3c24xx_dclk1.parent = NULL;
243 s3c24xx_dclk1.rate = 24*1000*1000;
245 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
246 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
248 s3c24xx_uclk.parent = &s3c24xx_clkout1;
250 s3c_device_nand.dev.platform_data = &anubis_nand_info;
252 s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
253 s3c24xx_init_clocks(0);
254 s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
255 s3c24xx_set_board(&anubis_board);
257 /* ensure that the GPIO is setup */
258 s3c2410_gpio_setpin(S3C2410_GPA0, 1);
261 MACHINE_START(ANUBIS, "Simtec-Anubis")
262 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
263 .phys_ram = S3C2410_SDRAM_PA,
264 .phys_io = S3C2410_PA_UART,
265 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
266 .boot_params = S3C2410_SDRAM_PA + 0x100,
267 .map_io = anubis_map_io,
268 .init_irq = s3c24xx_init_irq,
269 .timer = &s3c24xx_timer,