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[ARM] 2889/1: S3C2410 - Add machine Anubis
[deliverable/linux.git] / arch / arm / mach-s3c2410 / mach-anubis.c
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BD		 1/* linux/arch/arm/mach-s3c2410/mach-anubis.c
2 *
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Ben Dooks <ben@simtec.co.uk>
6 *
7 *
8 *
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.
12 *
13 * Modifications:
14 * 02-May-2005 BJD Copied from mach-bast.c
15*/
16
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>
24
25#include <asm/mach/arch.h>
26#include <asm/mach/map.h>
27#include <asm/mach/irq.h>
28
29#include <asm/arch/anubis-map.h>
30#include <asm/arch/anubis-irq.h>
31#include <asm/arch/anubis-cpld.h>
32
33#include <asm/hardware.h>
34#include <asm/io.h>
35#include <asm/irq.h>
36#include <asm/mach-types.h>
37
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>
43
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>
48
49#include "clock.h"
50#include "devs.h"
51#include "cpu.h"
52
53#define COPYRIGHT ", (c) 2005 Simtec Electronics"
54
55static struct map_desc anubis_iodesc[] __initdata = {
56 /* ISA IO areas */
57
58 { (u32)S3C24XX_VA_ISA_BYTE, 0x0, SZ_16M, MT_DEVICE },
59 { (u32)S3C24XX_VA_ISA_WORD, 0x0, SZ_16M, MT_DEVICE },
60
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
64 */
65
66 /* CPLD control registers */
67
68 { (u32)ANUBIS_VA_CTRL1, ANUBIS_PA_CTRL1, SZ_4K, MT_DEVICE },
69 { (u32)ANUBIS_VA_CTRL2, ANUBIS_PA_CTRL2, SZ_4K, MT_DEVICE },
70
71 /* IDE drives */
72
73 { (u32)ANUBIS_IDEPRI, S3C2410_CS3, SZ_1M, MT_DEVICE },
74 { (u32)ANUBIS_IDEPRIAUX, S3C2410_CS3+(1<<26), SZ_1M, MT_DEVICE },
75
76 { (u32)ANUBIS_IDESEC, S3C2410_CS4, SZ_1M, MT_DEVICE },
77 { (u32)ANUBIS_IDESECAUX, S3C2410_CS4+(1<<26), SZ_1M, MT_DEVICE },
78};
79
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
83
84static struct s3c24xx_uart_clksrc anubis_serial_clocks[] = {
85 [0] = {
86 .name = "uclk",
87 .divisor = 1,
88 .min_baud = 0,
89 .max_baud = 0,
90 },
91 [1] = {
92 .name = "pclk",
93 .divisor = 1,
94 .min_baud = 0,
95 .max_baud = 0.
96 }
97};
98
99
100static struct s3c2410_uartcfg anubis_uartcfgs[] = {
101 [0] = {
102 .hwport = 0,
103 .flags = 0,
104 .ucon = UCON,
105 .ulcon = ULCON,
106 .ufcon = UFCON,
107 .clocks = anubis_serial_clocks,
108 .clocks_size = ARRAY_SIZE(anubis_serial_clocks)
109 },
110 [1] = {
111 .hwport = 2,
112 .flags = 0,
113 .ucon = UCON,
114 .ulcon = ULCON,
115 .ufcon = UFCON,
116 .clocks = anubis_serial_clocks,
117 .clocks_size = ARRAY_SIZE(anubis_serial_clocks)
118 },
119};
120
121/* NAND Flash on Anubis board */
122
123static int external_map[] = { 2 };
124static int chip0_map[] = { 0 };
125static int chip1_map[] = { 1 };
126
127struct mtd_partition anubis_default_nand_part[] = {
128 [0] = {
129 .name = "Boot Agent",
130 .size = SZ_16K,
131 .offset = 0
132 },
133 [1] = {
134 .name = "/boot",
135 .size = SZ_4M - SZ_16K,
136 .offset = SZ_16K,
137 },
138 [2] = {
139 .name = "user1",
140 .offset = SZ_4M,
141 .size = SZ_32M - SZ_4M,
142 },
143 [3] = {
144 .name = "user2",
145 .offset = SZ_32M,
146 .size = MTDPART_SIZ_FULL,
147 }
148};
149
150/* the Anubis has 3 selectable slots for nand-flash, the two
151 * on-board chip areas, as well as the external slot.
152 *
153 * Note, there is no current hot-plug support for the External
154 * socket.
155*/
156
157static struct s3c2410_nand_set anubis_nand_sets[] = {
158 [1] = {
159 .name = "External",
160 .nr_chips = 1,
161 .nr_map = external_map,
162 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
163 .partitions = anubis_default_nand_part
164 },
165 [0] = {
166 .name = "chip0",
167 .nr_chips = 1,
168 .nr_map = chip0_map,
169 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
170 .partitions = anubis_default_nand_part
171 },
172 [2] = {
173 .name = "chip1",
174 .nr_chips = 1,
175 .nr_map = chip1_map,
176 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
177 .partitions = anubis_default_nand_part
178 },
179};
180
181static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
182{
183 unsigned int tmp;
184
185 slot = set->nr_map[slot] & 3;
186
187 pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
188 slot, set, set->nr_map);
189
190 tmp = __raw_readb(ANUBIS_VA_CTRL1);
191 tmp &= ~ANUBIS_CTRL1_NANDSEL;
192 tmp |= slot;
193
194 pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
195
196 __raw_writeb(tmp, ANUBIS_VA_CTRL1);
197}
198
199static struct s3c2410_platform_nand anubis_nand_info = {
200 .tacls = 25,
201 .twrph0 = 80,
202 .twrph1 = 80,
203 .nr_sets = ARRAY_SIZE(anubis_nand_sets),
204 .sets = anubis_nand_sets,
205 .select_chip = anubis_nand_select,
206};
207
208
209/* Standard Anubis devices */
210
211static struct platform_device *anubis_devices[] __initdata = {
212 &s3c_device_usb,
213 &s3c_device_wdt,
214 &s3c_device_adc,
215 &s3c_device_i2c,
216 &s3c_device_rtc,
217 &s3c_device_nand,
218};
219
220static struct clk *anubis_clocks[] = {
221 &s3c24xx_dclk0,
222 &s3c24xx_dclk1,
223 &s3c24xx_clkout0,
224 &s3c24xx_clkout1,
225 &s3c24xx_uclk,
226};
227
228static 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)
233};
234
235void __init anubis_map_io(void)
236{
237 /* initialise the clocks */
238
239 s3c24xx_dclk0.parent = NULL;
240 s3c24xx_dclk0.rate = 12*1000*1000;
241
242 s3c24xx_dclk1.parent = NULL;
243 s3c24xx_dclk1.rate = 24*1000*1000;
244
245 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
246 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
247
248 s3c24xx_uclk.parent = &s3c24xx_clkout1;
249
250 s3c_device_nand.dev.platform_data = &anubis_nand_info;
251
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);
256
257 /* ensure that the GPIO is setup */
258 s3c2410_gpio_setpin(S3C2410_GPA0, 1);
259}
260
261MACHINE_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,
270MACHINE_END
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