1 /* linux/arch/arm/mach-s3c2440/mach-osiris.c
3 * Copyright (c) 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/device.h>
19 #include <linux/sysdev.h>
20 #include <linux/serial_core.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/map.h>
24 #include <asm/mach/irq.h>
26 #include <asm/arch/osiris-map.h>
27 #include <asm/arch/osiris-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 /* onboard perihperal map */
51 static struct map_desc osiris_iodesc[] __initdata = {
52 /* ISA IO areas (may be over-written later) */
55 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
56 .pfn = __phys_to_pfn(S3C2410_CS5),
60 .virtual = (u32)S3C24XX_VA_ISA_WORD,
61 .pfn = __phys_to_pfn(S3C2410_CS5),
66 /* CPLD control registers */
69 .virtual = (u32)OSIRIS_VA_CTRL0,
70 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL0),
74 .virtual = (u32)OSIRIS_VA_CTRL1,
75 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL1),
79 .virtual = (u32)OSIRIS_VA_CTRL2,
80 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL2),
84 .virtual = (u32)OSIRIS_VA_IDREG,
85 .pfn = __phys_to_pfn(OSIRIS_PA_IDREG),
91 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
92 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
93 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
95 static struct s3c24xx_uart_clksrc osiris_serial_clocks[] = {
110 static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
117 .clocks = osiris_serial_clocks,
118 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
126 .clocks = osiris_serial_clocks,
127 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
135 .clocks = osiris_serial_clocks,
136 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
140 /* NAND Flash on Osiris board */
142 static int external_map[] = { 2 };
143 static int chip0_map[] = { 0 };
144 static int chip1_map[] = { 1 };
146 static struct mtd_partition osiris_default_nand_part[] = {
148 .name = "Boot Agent",
154 .size = SZ_4M - SZ_16K,
160 .size = SZ_32M - SZ_4M,
165 .size = MTDPART_SIZ_FULL,
169 /* the Osiris has 3 selectable slots for nand-flash, the two
170 * on-board chip areas, as well as the external slot.
172 * Note, there is no current hot-plug support for the External
176 static struct s3c2410_nand_set osiris_nand_sets[] = {
180 .nr_map = external_map,
181 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
182 .partitions = osiris_default_nand_part,
188 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
189 .partitions = osiris_default_nand_part,
195 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
196 .partitions = osiris_default_nand_part,
200 static void osiris_nand_select(struct s3c2410_nand_set *set, int slot)
204 slot = set->nr_map[slot] & 3;
206 pr_debug("osiris_nand: selecting slot %d (set %p,%p)\n",
207 slot, set, set->nr_map);
209 tmp = __raw_readb(OSIRIS_VA_CTRL0);
210 tmp &= ~OSIRIS_CTRL0_NANDSEL;
213 pr_debug("osiris_nand: ctrl0 now %02x\n", tmp);
215 __raw_writeb(tmp, OSIRIS_VA_CTRL0);
218 static struct s3c2410_platform_nand osiris_nand_info = {
222 .nr_sets = ARRAY_SIZE(osiris_nand_sets),
223 .sets = osiris_nand_sets,
224 .select_chip = osiris_nand_select,
227 /* PCMCIA control and configuration */
229 static struct resource osiris_pcmcia_resource[] = {
233 .flags = IORESOURCE_MEM,
238 .flags = IORESOURCE_MEM,
242 static struct platform_device osiris_pcmcia = {
243 .name = "osiris-pcmcia",
245 .num_resources = ARRAY_SIZE(osiris_pcmcia_resource),
246 .resource = osiris_pcmcia_resource,
249 /* Osiris power management device */
252 static unsigned char pm_osiris_ctrl0;
254 static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state)
256 pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0);
260 static int osiris_pm_resume(struct sys_device *sd)
262 if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8)
263 __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1);
269 #define osiris_pm_suspend NULL
270 #define osiris_pm_resume NULL
273 static struct sysdev_class osiris_pm_sysclass = {
274 set_kset_name("mach-osiris"),
275 .suspend = osiris_pm_suspend,
276 .resume = osiris_pm_resume,
279 static struct sys_device osiris_pm_sysdev = {
280 .cls = &osiris_pm_sysclass,
283 /* Standard Osiris devices */
285 static struct platform_device *osiris_devices[] __initdata = {
292 static struct clk *osiris_clocks[] = {
300 static void __init osiris_map_io(void)
304 /* initialise the clocks */
306 s3c24xx_dclk0.parent = NULL;
307 s3c24xx_dclk0.rate = 12*1000*1000;
309 s3c24xx_dclk1.parent = NULL;
310 s3c24xx_dclk1.rate = 24*1000*1000;
312 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
313 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
315 s3c24xx_uclk.parent = &s3c24xx_clkout1;
317 s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks));
319 s3c_device_nand.dev.platform_data = &osiris_nand_info;
321 s3c24xx_init_io(osiris_iodesc, ARRAY_SIZE(osiris_iodesc));
322 s3c24xx_init_clocks(0);
323 s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs));
325 /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */
327 local_irq_save(flags);
328 __raw_writel(__raw_readl(S3C2410_BWSCON) | S3C2410_BWSCON_ST1 | S3C2410_BWSCON_ST2 | S3C2410_BWSCON_ST3 | S3C2410_BWSCON_ST4 | S3C2410_BWSCON_ST5, S3C2410_BWSCON);
329 local_irq_restore(flags);
331 /* write-protect line to the NAND */
332 s3c2410_gpio_setpin(S3C2410_GPA0, 1);
335 static void __init osiris_init(void)
337 sysdev_class_register(&osiris_pm_sysclass);
338 sysdev_register(&osiris_pm_sysdev);
340 platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices));
343 MACHINE_START(OSIRIS, "Simtec-OSIRIS")
344 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
345 .phys_io = S3C2410_PA_UART,
346 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
347 .boot_params = S3C2410_SDRAM_PA + 0x100,
348 .map_io = osiris_map_io,
349 .init_machine = osiris_init,
350 .init_irq = s3c24xx_init_irq,
351 .init_machine = osiris_init,
352 .timer = &s3c24xx_timer,