ARM: H1940: Correct name of the local platform devices for LED and Bluetooth
[deliverable/linux.git] / arch / arm / mach-s3c2440 / mach-osiris.c
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a21765a7 1/* linux/arch/arm/mach-s3c2440/mach-osiris.c
110d322b 2 *
f3374221 3 * Copyright (c) 2005,2008 Simtec Electronics
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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>
ec976d6e 18#include <linux/gpio.h>
110d322b 19#include <linux/device.h>
5698bd28 20#include <linux/sysdev.h>
b6d1f542 21#include <linux/serial_core.h>
d96a9804 22#include <linux/clk.h>
f3374221 23#include <linux/i2c.h>
fced80c7 24#include <linux/io.h>
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25
26#include <asm/mach/arch.h>
27#include <asm/mach/map.h>
28#include <asm/mach/irq.h>
29
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30#include <mach/osiris-map.h>
31#include <mach/osiris-cpld.h>
110d322b 32
a09e64fb 33#include <mach/hardware.h>
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34#include <asm/irq.h>
35#include <asm/mach-types.h>
36
baf6b281 37#include <plat/cpu-freq.h>
a2b7ba9c 38#include <plat/regs-serial.h>
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39#include <mach/regs-gpio.h>
40#include <mach/regs-mem.h>
41#include <mach/regs-lcd.h>
7926b5a3 42#include <plat/nand.h>
3e1b776c 43#include <plat/iic.h>
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44
45#include <linux/mtd/mtd.h>
46#include <linux/mtd/nand.h>
47#include <linux/mtd/nand_ecc.h>
48#include <linux/mtd/partitions.h>
49
d5120ae7 50#include <plat/clock.h>
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51#include <plat/devs.h>
52#include <plat/cpu.h>
110d322b 53
6cbdc8c5 54/* onboard perihperal map */
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55
56static struct map_desc osiris_iodesc[] __initdata = {
57 /* ISA IO areas (may be over-written later) */
58
59 {
60 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
61 .pfn = __phys_to_pfn(S3C2410_CS5),
62 .length = SZ_16M,
63 .type = MT_DEVICE,
64 }, {
65 .virtual = (u32)S3C24XX_VA_ISA_WORD,
66 .pfn = __phys_to_pfn(S3C2410_CS5),
67 .length = SZ_16M,
68 .type = MT_DEVICE,
69 },
70
71 /* CPLD control registers */
72
73 {
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74 .virtual = (u32)OSIRIS_VA_CTRL0,
75 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL0),
76 .length = SZ_16K,
77 .type = MT_DEVICE,
78 }, {
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79 .virtual = (u32)OSIRIS_VA_CTRL1,
80 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL1),
81 .length = SZ_16K,
705630db 82 .type = MT_DEVICE,
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83 }, {
84 .virtual = (u32)OSIRIS_VA_CTRL2,
85 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL2),
86 .length = SZ_16K,
705630db 87 .type = MT_DEVICE,
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88 }, {
89 .virtual = (u32)OSIRIS_VA_IDREG,
90 .pfn = __phys_to_pfn(OSIRIS_PA_IDREG),
91 .length = SZ_16K,
92 .type = MT_DEVICE,
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93 },
94};
95
96#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
97#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
98#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
99
100static struct s3c24xx_uart_clksrc osiris_serial_clocks[] = {
101 [0] = {
102 .name = "uclk",
103 .divisor = 1,
104 .min_baud = 0,
105 .max_baud = 0,
106 },
107 [1] = {
108 .name = "pclk",
109 .divisor = 1,
110 .min_baud = 0,
705630db 111 .max_baud = 0,
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112 }
113};
114
66a9b49a 115static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
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116 [0] = {
117 .hwport = 0,
118 .flags = 0,
119 .ucon = UCON,
120 .ulcon = ULCON,
121 .ufcon = UFCON,
122 .clocks = osiris_serial_clocks,
705630db 123 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
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124 },
125 [1] = {
e2e5810f 126 .hwport = 1,
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127 .flags = 0,
128 .ucon = UCON,
129 .ulcon = ULCON,
130 .ufcon = UFCON,
131 .clocks = osiris_serial_clocks,
705630db 132 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
110d322b 133 },
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134 [2] = {
135 .hwport = 2,
136 .flags = 0,
137 .ucon = UCON,
138 .ulcon = ULCON,
139 .ufcon = UFCON,
140 .clocks = osiris_serial_clocks,
141 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
142 }
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143};
144
145/* NAND Flash on Osiris board */
146
147static int external_map[] = { 2 };
148static int chip0_map[] = { 0 };
149static int chip1_map[] = { 1 };
150
da956fd6 151static struct mtd_partition osiris_default_nand_part[] = {
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152 [0] = {
153 .name = "Boot Agent",
154 .size = SZ_16K,
705630db 155 .offset = 0,
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156 },
157 [1] = {
158 .name = "/boot",
159 .size = SZ_4M - SZ_16K,
160 .offset = SZ_16K,
161 },
162 [2] = {
163 .name = "user1",
164 .offset = SZ_4M,
165 .size = SZ_32M - SZ_4M,
166 },
167 [3] = {
168 .name = "user2",
169 .offset = SZ_32M,
170 .size = MTDPART_SIZ_FULL,
171 }
172};
173
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174static struct mtd_partition osiris_default_nand_part_large[] = {
175 [0] = {
176 .name = "Boot Agent",
177 .size = SZ_128K,
178 .offset = 0,
179 },
180 [1] = {
181 .name = "/boot",
182 .size = SZ_4M - SZ_128K,
183 .offset = SZ_128K,
184 },
185 [2] = {
186 .name = "user1",
187 .offset = SZ_4M,
188 .size = SZ_32M - SZ_4M,
189 },
190 [3] = {
191 .name = "user2",
192 .offset = SZ_32M,
193 .size = MTDPART_SIZ_FULL,
194 }
195};
196
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197/* the Osiris has 3 selectable slots for nand-flash, the two
198 * on-board chip areas, as well as the external slot.
199 *
200 * Note, there is no current hot-plug support for the External
201 * socket.
202*/
203
204static struct s3c2410_nand_set osiris_nand_sets[] = {
205 [1] = {
206 .name = "External",
207 .nr_chips = 1,
208 .nr_map = external_map,
209 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
705630db 210 .partitions = osiris_default_nand_part,
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211 },
212 [0] = {
213 .name = "chip0",
214 .nr_chips = 1,
215 .nr_map = chip0_map,
216 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
705630db 217 .partitions = osiris_default_nand_part,
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218 },
219 [2] = {
220 .name = "chip1",
221 .nr_chips = 1,
222 .nr_map = chip1_map,
223 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
705630db 224 .partitions = osiris_default_nand_part,
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225 },
226};
227
228static void osiris_nand_select(struct s3c2410_nand_set *set, int slot)
229{
230 unsigned int tmp;
231
232 slot = set->nr_map[slot] & 3;
233
234 pr_debug("osiris_nand: selecting slot %d (set %p,%p)\n",
235 slot, set, set->nr_map);
236
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237 tmp = __raw_readb(OSIRIS_VA_CTRL0);
238 tmp &= ~OSIRIS_CTRL0_NANDSEL;
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239 tmp |= slot;
240
c362aecd 241 pr_debug("osiris_nand: ctrl0 now %02x\n", tmp);
110d322b 242
c362aecd 243 __raw_writeb(tmp, OSIRIS_VA_CTRL0);
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244}
245
246static struct s3c2410_platform_nand osiris_nand_info = {
247 .tacls = 25,
248 .twrph0 = 60,
249 .twrph1 = 60,
250 .nr_sets = ARRAY_SIZE(osiris_nand_sets),
251 .sets = osiris_nand_sets,
252 .select_chip = osiris_nand_select,
253};
254
255/* PCMCIA control and configuration */
256
257static struct resource osiris_pcmcia_resource[] = {
258 [0] = {
259 .start = 0x0f000000,
260 .end = 0x0f100000,
261 .flags = IORESOURCE_MEM,
262 },
263 [1] = {
264 .start = 0x0c000000,
265 .end = 0x0c100000,
266 .flags = IORESOURCE_MEM,
267 }
268};
269
270static struct platform_device osiris_pcmcia = {
271 .name = "osiris-pcmcia",
272 .id = -1,
273 .num_resources = ARRAY_SIZE(osiris_pcmcia_resource),
274 .resource = osiris_pcmcia_resource,
275};
276
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277/* Osiris power management device */
278
279#ifdef CONFIG_PM
280static unsigned char pm_osiris_ctrl0;
281
282static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state)
283{
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284 unsigned int tmp;
285
5698bd28 286 pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0);
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287 tmp = pm_osiris_ctrl0 & ~OSIRIS_CTRL0_NANDSEL;
288
289 /* ensure correct NAND slot is selected on resume */
290 if ((pm_osiris_ctrl0 & OSIRIS_CTRL0_BOOT_INT) == 0)
291 tmp |= 2;
292
293 __raw_writeb(tmp, OSIRIS_VA_CTRL0);
294
4afcddae 295 /* ensure that an nRESET is not generated on resume. */
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296 s3c2410_gpio_setpin(S3C2410_GPA(21), 1);
297 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPIO_OUTPUT);
4afcddae 298
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299 return 0;
300}
301
302static int osiris_pm_resume(struct sys_device *sd)
303{
304 if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8)
305 __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1);
306
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307 __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0);
308
070276d5 309 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
4afcddae 310
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311 return 0;
312}
313
314#else
315#define osiris_pm_suspend NULL
316#define osiris_pm_resume NULL
317#endif
318
319static struct sysdev_class osiris_pm_sysclass = {
af5ca3f4 320 .name = "mach-osiris",
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321 .suspend = osiris_pm_suspend,
322 .resume = osiris_pm_resume,
323};
324
325static struct sys_device osiris_pm_sysdev = {
326 .cls = &osiris_pm_sysclass,
327};
328
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329/* I2C devices fitted. */
330
331static struct i2c_board_info osiris_i2c_devs[] __initdata = {
332 {
333 I2C_BOARD_INFO("tps65011", 0x48),
334 .irq = IRQ_EINT20,
335 },
336};
337
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338/* Standard Osiris devices */
339
340static struct platform_device *osiris_devices[] __initdata = {
3e1b776c 341 &s3c_device_i2c0,
55ba86bc 342 &s3c_device_wdt,
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343 &s3c_device_nand,
344 &osiris_pcmcia,
345};
346
2bc7509f 347static struct clk *osiris_clocks[] __initdata = {
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348 &s3c24xx_dclk0,
349 &s3c24xx_dclk1,
350 &s3c24xx_clkout0,
351 &s3c24xx_clkout1,
352 &s3c24xx_uclk,
353};
354
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355static struct s3c_cpufreq_board __initdata osiris_cpufreq = {
356 .refresh = 7800, /* refresh period is 7.8usec */
357 .auto_io = 1,
358 .need_io = 1,
359};
360
da956fd6 361static void __init osiris_map_io(void)
110d322b 362{
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363 unsigned long flags;
364
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365 /* initialise the clocks */
366
d96a9804 367 s3c24xx_dclk0.parent = &clk_upll;
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368 s3c24xx_dclk0.rate = 12*1000*1000;
369
d96a9804 370 s3c24xx_dclk1.parent = &clk_upll;
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371 s3c24xx_dclk1.rate = 24*1000*1000;
372
373 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
374 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
375
376 s3c24xx_uclk.parent = &s3c24xx_clkout1;
377
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378 s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks));
379
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380 s3c_device_nand.dev.platform_data = &osiris_nand_info;
381
382 s3c24xx_init_io(osiris_iodesc, ARRAY_SIZE(osiris_iodesc));
383 s3c24xx_init_clocks(0);
384 s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs));
110d322b 385
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386 /* check for the newer revision boards with large page nand */
387
388 if ((__raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK) >= 4) {
389 printk(KERN_INFO "OSIRIS-B detected (revision %d)\n",
390 __raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK);
391 osiris_nand_sets[0].partitions = osiris_default_nand_part_large;
392 osiris_nand_sets[0].nr_partitions = ARRAY_SIZE(osiris_default_nand_part_large);
393 } else {
394 /* write-protect line to the NAND */
070276d5 395 s3c2410_gpio_setpin(S3C2410_GPA(0), 1);
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396 }
397
110d322b 398 /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */
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399
400 local_irq_save(flags);
110d322b 401 __raw_writel(__raw_readl(S3C2410_BWSCON) | S3C2410_BWSCON_ST1 | S3C2410_BWSCON_ST2 | S3C2410_BWSCON_ST3 | S3C2410_BWSCON_ST4 | S3C2410_BWSCON_ST5, S3C2410_BWSCON);
da956fd6 402 local_irq_restore(flags);
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403}
404
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405static void __init osiris_init(void)
406{
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407 sysdev_class_register(&osiris_pm_sysclass);
408 sysdev_register(&osiris_pm_sysdev);
409
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410 s3c_i2c0_set_platdata(NULL);
411
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412 s3c_cpufreq_setboard(&osiris_cpufreq);
413
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414 i2c_register_board_info(0, osiris_i2c_devs,
415 ARRAY_SIZE(osiris_i2c_devs));
416
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417 platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices));
418};
419
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420MACHINE_START(OSIRIS, "Simtec-OSIRIS")
421 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
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422 .phys_io = S3C2410_PA_UART,
423 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
424 .boot_params = S3C2410_SDRAM_PA + 0x100,
425 .map_io = osiris_map_io,
426 .init_irq = s3c24xx_init_irq,
5698bd28 427 .init_machine = osiris_init,
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428 .timer = &s3c24xx_timer,
429MACHINE_END
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