Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 1 | /* linux/arch/arm/mach-s3c2440/mach-osiris.c |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 2 | * |
| 3 | * Copyright (c) 2005 Simtec Electronics |
| 4 | * http://armlinux.simtec.co.uk/ |
| 5 | * Ben Dooks <ben@simtec.co.uk> |
| 6 | * |
| 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. |
| 10 | */ |
| 11 | |
| 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> |
Ben Dooks | 5698bd2 | 2007-06-06 10:36:09 +0100 | [diff] [blame^] | 19 | #include <linux/sysdev.h> |
Ben Dooks | b6d1f54 | 2006-12-17 23:22:26 +0100 | [diff] [blame] | 20 | #include <linux/serial_core.h> |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 21 | |
| 22 | #include <asm/mach/arch.h> |
| 23 | #include <asm/mach/map.h> |
| 24 | #include <asm/mach/irq.h> |
| 25 | |
| 26 | #include <asm/arch/osiris-map.h> |
| 27 | #include <asm/arch/osiris-cpld.h> |
| 28 | |
| 29 | #include <asm/hardware.h> |
| 30 | #include <asm/io.h> |
| 31 | #include <asm/irq.h> |
| 32 | #include <asm/mach-types.h> |
| 33 | |
| 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> |
| 39 | |
| 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> |
| 44 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 45 | #include <asm/plat-s3c24xx/clock.h> |
| 46 | #include <asm/plat-s3c24xx/devs.h> |
| 47 | #include <asm/plat-s3c24xx/cpu.h> |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 48 | |
Simon Arlott | 6cbdc8c | 2007-05-11 20:40:30 +0100 | [diff] [blame] | 49 | /* onboard perihperal map */ |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 50 | |
| 51 | static struct map_desc osiris_iodesc[] __initdata = { |
| 52 | /* ISA IO areas (may be over-written later) */ |
| 53 | |
| 54 | { |
| 55 | .virtual = (u32)S3C24XX_VA_ISA_BYTE, |
| 56 | .pfn = __phys_to_pfn(S3C2410_CS5), |
| 57 | .length = SZ_16M, |
| 58 | .type = MT_DEVICE, |
| 59 | }, { |
| 60 | .virtual = (u32)S3C24XX_VA_ISA_WORD, |
| 61 | .pfn = __phys_to_pfn(S3C2410_CS5), |
| 62 | .length = SZ_16M, |
| 63 | .type = MT_DEVICE, |
| 64 | }, |
| 65 | |
| 66 | /* CPLD control registers */ |
| 67 | |
| 68 | { |
Ben Dooks | c362aec | 2007-06-06 09:51:51 +0100 | [diff] [blame] | 69 | .virtual = (u32)OSIRIS_VA_CTRL0, |
| 70 | .pfn = __phys_to_pfn(OSIRIS_PA_CTRL0), |
| 71 | .length = SZ_16K, |
| 72 | .type = MT_DEVICE, |
| 73 | }, { |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 74 | .virtual = (u32)OSIRIS_VA_CTRL1, |
| 75 | .pfn = __phys_to_pfn(OSIRIS_PA_CTRL1), |
| 76 | .length = SZ_16K, |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 77 | .type = MT_DEVICE, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 78 | }, { |
| 79 | .virtual = (u32)OSIRIS_VA_CTRL2, |
| 80 | .pfn = __phys_to_pfn(OSIRIS_PA_CTRL2), |
| 81 | .length = SZ_16K, |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 82 | .type = MT_DEVICE, |
Ben Dooks | c362aec | 2007-06-06 09:51:51 +0100 | [diff] [blame] | 83 | }, { |
| 84 | .virtual = (u32)OSIRIS_VA_IDREG, |
| 85 | .pfn = __phys_to_pfn(OSIRIS_PA_IDREG), |
| 86 | .length = SZ_16K, |
| 87 | .type = MT_DEVICE, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 88 | }, |
| 89 | }; |
| 90 | |
| 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 |
| 94 | |
| 95 | static struct s3c24xx_uart_clksrc osiris_serial_clocks[] = { |
| 96 | [0] = { |
| 97 | .name = "uclk", |
| 98 | .divisor = 1, |
| 99 | .min_baud = 0, |
| 100 | .max_baud = 0, |
| 101 | }, |
| 102 | [1] = { |
| 103 | .name = "pclk", |
| 104 | .divisor = 1, |
| 105 | .min_baud = 0, |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 106 | .max_baud = 0, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 107 | } |
| 108 | }; |
| 109 | |
Ben Dooks | 66a9b49 | 2006-06-18 23:04:05 +0100 | [diff] [blame] | 110 | static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = { |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 111 | [0] = { |
| 112 | .hwport = 0, |
| 113 | .flags = 0, |
| 114 | .ucon = UCON, |
| 115 | .ulcon = ULCON, |
| 116 | .ufcon = UFCON, |
| 117 | .clocks = osiris_serial_clocks, |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 118 | .clocks_size = ARRAY_SIZE(osiris_serial_clocks), |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 119 | }, |
| 120 | [1] = { |
Ben Dooks | e2e5810 | 2006-06-18 16:21:50 +0100 | [diff] [blame] | 121 | .hwport = 1, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 122 | .flags = 0, |
| 123 | .ucon = UCON, |
| 124 | .ulcon = ULCON, |
| 125 | .ufcon = UFCON, |
| 126 | .clocks = osiris_serial_clocks, |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 127 | .clocks_size = ARRAY_SIZE(osiris_serial_clocks), |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 128 | }, |
Ben Dooks | ca7aa4d | 2006-12-07 20:49:01 +0100 | [diff] [blame] | 129 | [2] = { |
| 130 | .hwport = 2, |
| 131 | .flags = 0, |
| 132 | .ucon = UCON, |
| 133 | .ulcon = ULCON, |
| 134 | .ufcon = UFCON, |
| 135 | .clocks = osiris_serial_clocks, |
| 136 | .clocks_size = ARRAY_SIZE(osiris_serial_clocks), |
| 137 | } |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 138 | }; |
| 139 | |
| 140 | /* NAND Flash on Osiris board */ |
| 141 | |
| 142 | static int external_map[] = { 2 }; |
| 143 | static int chip0_map[] = { 0 }; |
| 144 | static int chip1_map[] = { 1 }; |
| 145 | |
Ben Dooks | da956fd | 2006-03-20 21:02:39 +0000 | [diff] [blame] | 146 | static struct mtd_partition osiris_default_nand_part[] = { |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 147 | [0] = { |
| 148 | .name = "Boot Agent", |
| 149 | .size = SZ_16K, |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 150 | .offset = 0, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 151 | }, |
| 152 | [1] = { |
| 153 | .name = "/boot", |
| 154 | .size = SZ_4M - SZ_16K, |
| 155 | .offset = SZ_16K, |
| 156 | }, |
| 157 | [2] = { |
| 158 | .name = "user1", |
| 159 | .offset = SZ_4M, |
| 160 | .size = SZ_32M - SZ_4M, |
| 161 | }, |
| 162 | [3] = { |
| 163 | .name = "user2", |
| 164 | .offset = SZ_32M, |
| 165 | .size = MTDPART_SIZ_FULL, |
| 166 | } |
| 167 | }; |
| 168 | |
| 169 | /* the Osiris has 3 selectable slots for nand-flash, the two |
| 170 | * on-board chip areas, as well as the external slot. |
| 171 | * |
| 172 | * Note, there is no current hot-plug support for the External |
| 173 | * socket. |
| 174 | */ |
| 175 | |
| 176 | static struct s3c2410_nand_set osiris_nand_sets[] = { |
| 177 | [1] = { |
| 178 | .name = "External", |
| 179 | .nr_chips = 1, |
| 180 | .nr_map = external_map, |
| 181 | .nr_partitions = ARRAY_SIZE(osiris_default_nand_part), |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 182 | .partitions = osiris_default_nand_part, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 183 | }, |
| 184 | [0] = { |
| 185 | .name = "chip0", |
| 186 | .nr_chips = 1, |
| 187 | .nr_map = chip0_map, |
| 188 | .nr_partitions = ARRAY_SIZE(osiris_default_nand_part), |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 189 | .partitions = osiris_default_nand_part, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 190 | }, |
| 191 | [2] = { |
| 192 | .name = "chip1", |
| 193 | .nr_chips = 1, |
| 194 | .nr_map = chip1_map, |
| 195 | .nr_partitions = ARRAY_SIZE(osiris_default_nand_part), |
Ben Dooks | 705630d | 2006-07-26 20:16:39 +0100 | [diff] [blame] | 196 | .partitions = osiris_default_nand_part, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 197 | }, |
| 198 | }; |
| 199 | |
| 200 | static void osiris_nand_select(struct s3c2410_nand_set *set, int slot) |
| 201 | { |
| 202 | unsigned int tmp; |
| 203 | |
| 204 | slot = set->nr_map[slot] & 3; |
| 205 | |
| 206 | pr_debug("osiris_nand: selecting slot %d (set %p,%p)\n", |
| 207 | slot, set, set->nr_map); |
| 208 | |
Ben Dooks | c362aec | 2007-06-06 09:51:51 +0100 | [diff] [blame] | 209 | tmp = __raw_readb(OSIRIS_VA_CTRL0); |
| 210 | tmp &= ~OSIRIS_CTRL0_NANDSEL; |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 211 | tmp |= slot; |
| 212 | |
Ben Dooks | c362aec | 2007-06-06 09:51:51 +0100 | [diff] [blame] | 213 | pr_debug("osiris_nand: ctrl0 now %02x\n", tmp); |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 214 | |
Ben Dooks | c362aec | 2007-06-06 09:51:51 +0100 | [diff] [blame] | 215 | __raw_writeb(tmp, OSIRIS_VA_CTRL0); |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | static struct s3c2410_platform_nand osiris_nand_info = { |
| 219 | .tacls = 25, |
| 220 | .twrph0 = 60, |
| 221 | .twrph1 = 60, |
| 222 | .nr_sets = ARRAY_SIZE(osiris_nand_sets), |
| 223 | .sets = osiris_nand_sets, |
| 224 | .select_chip = osiris_nand_select, |
| 225 | }; |
| 226 | |
| 227 | /* PCMCIA control and configuration */ |
| 228 | |
| 229 | static struct resource osiris_pcmcia_resource[] = { |
| 230 | [0] = { |
| 231 | .start = 0x0f000000, |
| 232 | .end = 0x0f100000, |
| 233 | .flags = IORESOURCE_MEM, |
| 234 | }, |
| 235 | [1] = { |
| 236 | .start = 0x0c000000, |
| 237 | .end = 0x0c100000, |
| 238 | .flags = IORESOURCE_MEM, |
| 239 | } |
| 240 | }; |
| 241 | |
| 242 | static struct platform_device osiris_pcmcia = { |
| 243 | .name = "osiris-pcmcia", |
| 244 | .id = -1, |
| 245 | .num_resources = ARRAY_SIZE(osiris_pcmcia_resource), |
| 246 | .resource = osiris_pcmcia_resource, |
| 247 | }; |
| 248 | |
Ben Dooks | 5698bd2 | 2007-06-06 10:36:09 +0100 | [diff] [blame^] | 249 | /* Osiris power management device */ |
| 250 | |
| 251 | #ifdef CONFIG_PM |
| 252 | static unsigned char pm_osiris_ctrl0; |
| 253 | |
| 254 | static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state) |
| 255 | { |
| 256 | pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0); |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static int osiris_pm_resume(struct sys_device *sd) |
| 261 | { |
| 262 | if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8) |
| 263 | __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1); |
| 264 | |
| 265 | return 0; |
| 266 | } |
| 267 | |
| 268 | #else |
| 269 | #define osiris_pm_suspend NULL |
| 270 | #define osiris_pm_resume NULL |
| 271 | #endif |
| 272 | |
| 273 | static struct sysdev_class osiris_pm_sysclass = { |
| 274 | set_kset_name("mach-osiris"), |
| 275 | .suspend = osiris_pm_suspend, |
| 276 | .resume = osiris_pm_resume, |
| 277 | }; |
| 278 | |
| 279 | static struct sys_device osiris_pm_sysdev = { |
| 280 | .cls = &osiris_pm_sysclass, |
| 281 | }; |
| 282 | |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 283 | /* Standard Osiris devices */ |
| 284 | |
| 285 | static struct platform_device *osiris_devices[] __initdata = { |
| 286 | &s3c_device_i2c, |
Ben Dooks | 55ba86b | 2007-06-06 09:53:00 +0100 | [diff] [blame] | 287 | &s3c_device_wdt, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 288 | &s3c_device_nand, |
| 289 | &osiris_pcmcia, |
| 290 | }; |
| 291 | |
| 292 | static struct clk *osiris_clocks[] = { |
| 293 | &s3c24xx_dclk0, |
| 294 | &s3c24xx_dclk1, |
| 295 | &s3c24xx_clkout0, |
| 296 | &s3c24xx_clkout1, |
| 297 | &s3c24xx_uclk, |
| 298 | }; |
| 299 | |
Ben Dooks | da956fd | 2006-03-20 21:02:39 +0000 | [diff] [blame] | 300 | static void __init osiris_map_io(void) |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 301 | { |
Ben Dooks | da956fd | 2006-03-20 21:02:39 +0000 | [diff] [blame] | 302 | unsigned long flags; |
| 303 | |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 304 | /* initialise the clocks */ |
| 305 | |
| 306 | s3c24xx_dclk0.parent = NULL; |
| 307 | s3c24xx_dclk0.rate = 12*1000*1000; |
| 308 | |
| 309 | s3c24xx_dclk1.parent = NULL; |
| 310 | s3c24xx_dclk1.rate = 24*1000*1000; |
| 311 | |
| 312 | s3c24xx_clkout0.parent = &s3c24xx_dclk0; |
| 313 | s3c24xx_clkout1.parent = &s3c24xx_dclk1; |
| 314 | |
| 315 | s3c24xx_uclk.parent = &s3c24xx_clkout1; |
| 316 | |
Ben Dooks | ce89c20 | 2007-04-20 11:15:27 +0100 | [diff] [blame] | 317 | s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks)); |
| 318 | |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 319 | s3c_device_nand.dev.platform_data = &osiris_nand_info; |
| 320 | |
| 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)); |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 324 | |
| 325 | /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */ |
Ben Dooks | da956fd | 2006-03-20 21:02:39 +0000 | [diff] [blame] | 326 | |
| 327 | local_irq_save(flags); |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 328 | __raw_writel(__raw_readl(S3C2410_BWSCON) | S3C2410_BWSCON_ST1 | S3C2410_BWSCON_ST2 | S3C2410_BWSCON_ST3 | S3C2410_BWSCON_ST4 | S3C2410_BWSCON_ST5, S3C2410_BWSCON); |
Ben Dooks | da956fd | 2006-03-20 21:02:39 +0000 | [diff] [blame] | 329 | local_irq_restore(flags); |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 330 | |
| 331 | /* write-protect line to the NAND */ |
| 332 | s3c2410_gpio_setpin(S3C2410_GPA0, 1); |
| 333 | } |
| 334 | |
Ben Dooks | 57e5171 | 2007-04-20 11:19:16 +0100 | [diff] [blame] | 335 | static void __init osiris_init(void) |
| 336 | { |
Ben Dooks | 5698bd2 | 2007-06-06 10:36:09 +0100 | [diff] [blame^] | 337 | sysdev_class_register(&osiris_pm_sysclass); |
| 338 | sysdev_register(&osiris_pm_sysdev); |
| 339 | |
Ben Dooks | 57e5171 | 2007-04-20 11:19:16 +0100 | [diff] [blame] | 340 | platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices)); |
| 341 | }; |
| 342 | |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 343 | MACHINE_START(OSIRIS, "Simtec-OSIRIS") |
| 344 | /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 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, |
Ben Dooks | 57e5171 | 2007-04-20 11:19:16 +0100 | [diff] [blame] | 349 | .init_machine = osiris_init, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 350 | .init_irq = s3c24xx_init_irq, |
Ben Dooks | 5698bd2 | 2007-06-06 10:36:09 +0100 | [diff] [blame^] | 351 | .init_machine = osiris_init, |
Ben Dooks | 110d322 | 2006-03-20 17:10:02 +0000 | [diff] [blame] | 352 | .timer = &s3c24xx_timer, |
| 353 | MACHINE_END |