1 /* linux/arch/arm/mach-s3c2440/mach-anubis.c
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Ben Dooks <ben@simtec.co.uk>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/kernel.h>
13 #include <linux/types.h>
14 #include <linux/interrupt.h>
15 #include <linux/list.h>
16 #include <linux/timer.h>
17 #include <linux/init.h>
18 #include <linux/serial_core.h>
19 #include <linux/platform_device.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach/map.h>
23 #include <asm/mach/irq.h>
25 #include <asm/arch/anubis-map.h>
26 #include <asm/arch/anubis-irq.h>
27 #include <asm/arch/anubis-cpld.h>
29 #include <asm/hardware.h>
32 #include <asm/mach-types.h>
34 #include <asm/arch/regs-serial.h>
35 #include <asm/arch/regs-gpio.h>
36 #include <asm/arch/regs-mem.h>
37 #include <asm/arch/regs-lcd.h>
38 #include <asm/arch/nand.h>
40 #include <linux/mtd/mtd.h>
41 #include <linux/mtd/nand.h>
42 #include <linux/mtd/nand_ecc.h>
43 #include <linux/mtd/partitions.h>
45 #include <asm/plat-s3c24xx/clock.h>
46 #include <asm/plat-s3c24xx/devs.h>
47 #include <asm/plat-s3c24xx/cpu.h>
49 #define COPYRIGHT ", (c) 2005 Simtec Electronics"
51 static struct map_desc anubis_iodesc[] __initdata = {
55 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
56 .pfn = __phys_to_pfn(0x0),
60 .virtual = (u32)S3C24XX_VA_ISA_WORD,
61 .pfn = __phys_to_pfn(0x0),
66 /* we could possibly compress the next set down into a set of smaller tables
67 * pagetables, but that would mean using an L2 section, and it still means
68 * we cannot actually feed the same register to an LDR due to 16K spacing
71 /* CPLD control registers */
74 .virtual = (u32)ANUBIS_VA_CTRL1,
75 .pfn = __phys_to_pfn(ANUBIS_PA_CTRL1),
79 .virtual = (u32)ANUBIS_VA_CTRL2,
80 .pfn = __phys_to_pfn(ANUBIS_PA_CTRL2),
86 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
87 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
88 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
90 static struct s3c24xx_uart_clksrc anubis_serial_clocks[] = {
106 static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
113 .clocks = anubis_serial_clocks,
114 .clocks_size = ARRAY_SIZE(anubis_serial_clocks),
122 .clocks = anubis_serial_clocks,
123 .clocks_size = ARRAY_SIZE(anubis_serial_clocks),
127 /* NAND Flash on Anubis board */
129 static int external_map[] = { 2 };
130 static int chip0_map[] = { 0 };
131 static int chip1_map[] = { 1 };
133 static struct mtd_partition anubis_default_nand_part[] = {
135 .name = "Boot Agent",
141 .size = SZ_4M - SZ_16K,
147 .size = SZ_32M - SZ_4M,
152 .size = MTDPART_SIZ_FULL,
156 /* the Anubis has 3 selectable slots for nand-flash, the two
157 * on-board chip areas, as well as the external slot.
159 * Note, there is no current hot-plug support for the External
163 static struct s3c2410_nand_set anubis_nand_sets[] = {
167 .nr_map = external_map,
168 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
169 .partitions = anubis_default_nand_part,
175 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
176 .partitions = anubis_default_nand_part,
182 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
183 .partitions = anubis_default_nand_part,
187 static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
191 slot = set->nr_map[slot] & 3;
193 pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
194 slot, set, set->nr_map);
196 tmp = __raw_readb(ANUBIS_VA_CTRL1);
197 tmp &= ~ANUBIS_CTRL1_NANDSEL;
200 pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
202 __raw_writeb(tmp, ANUBIS_VA_CTRL1);
205 static struct s3c2410_platform_nand anubis_nand_info = {
209 .nr_sets = ARRAY_SIZE(anubis_nand_sets),
210 .sets = anubis_nand_sets,
211 .select_chip = anubis_nand_select,
216 static struct resource anubis_ide0_resource[] = {
218 .start = S3C2410_CS3,
219 .end = S3C2410_CS3 + (8*32) - 1,
220 .flags = IORESOURCE_MEM,
222 .start = S3C2410_CS3 + (1<<26),
223 .end = S3C2410_CS3 + (1<<26) + (8*32) - 1,
224 .flags = IORESOURCE_MEM,
228 .flags = IORESOURCE_IRQ,
232 static struct platform_device anubis_device_ide0 = {
233 .name = "simtec-ide",
235 .num_resources = ARRAY_SIZE(anubis_ide0_resource),
236 .resource = anubis_ide0_resource,
239 static struct resource anubis_ide1_resource[] = {
241 .start = S3C2410_CS4,
242 .end = S3C2410_CS4 + (8*32) - 1,
243 .flags = IORESOURCE_MEM,
245 .start = S3C2410_CS4 + (1<<26),
246 .end = S3C2410_CS4 + (1<<26) + (8*32) - 1,
247 .flags = IORESOURCE_MEM,
251 .flags = IORESOURCE_IRQ,
256 static struct platform_device anubis_device_ide1 = {
257 .name = "simtec-ide",
259 .num_resources = ARRAY_SIZE(anubis_ide1_resource),
260 .resource = anubis_ide1_resource,
263 /* Standard Anubis devices */
265 static struct platform_device *anubis_devices[] __initdata = {
276 static struct clk *anubis_clocks[] = {
284 static void __init anubis_map_io(void)
286 /* initialise the clocks */
288 s3c24xx_dclk0.parent = NULL;
289 s3c24xx_dclk0.rate = 12*1000*1000;
291 s3c24xx_dclk1.parent = NULL;
292 s3c24xx_dclk1.rate = 24*1000*1000;
294 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
295 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
297 s3c24xx_uclk.parent = &s3c24xx_clkout1;
299 s3c24xx_register_clocks(anubis_clocks, ARRAY_SIZE(anubis_clocks));
301 s3c_device_nand.dev.platform_data = &anubis_nand_info;
303 s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
304 s3c24xx_init_clocks(0);
305 s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
307 /* ensure that the GPIO is setup */
308 s3c2410_gpio_setpin(S3C2410_GPA0, 1);
311 static void __init anubis_init(void)
313 platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
317 MACHINE_START(ANUBIS, "Simtec-Anubis")
318 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
319 .phys_io = S3C2410_PA_UART,
320 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
321 .boot_params = S3C2410_SDRAM_PA + 0x100,
322 .map_io = anubis_map_io,
323 .init_machine = anubis_init,
324 .init_irq = s3c24xx_init_irq,
325 .timer = &s3c24xx_timer,