[ARM] S3C24XX: GPIO: Change to macros for GPIO numbering
[deliverable/linux.git] / arch / arm / mach-s3c2440 / mach-osiris.c
CommitLineData
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
a2b7ba9c 37#include <plat/regs-serial.h>
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38#include <mach/regs-gpio.h>
39#include <mach/regs-mem.h>
40#include <mach/regs-lcd.h>
7926b5a3 41#include <plat/nand.h>
3e1b776c 42#include <plat/iic.h>
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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
d5120ae7 49#include <plat/clock.h>
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50#include <plat/devs.h>
51#include <plat/cpu.h>
110d322b 52
6cbdc8c5 53/* onboard perihperal map */
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54
55static struct map_desc osiris_iodesc[] __initdata = {
56 /* ISA IO areas (may be over-written later) */
57
58 {
59 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
60 .pfn = __phys_to_pfn(S3C2410_CS5),
61 .length = SZ_16M,
62 .type = MT_DEVICE,
63 }, {
64 .virtual = (u32)S3C24XX_VA_ISA_WORD,
65 .pfn = __phys_to_pfn(S3C2410_CS5),
66 .length = SZ_16M,
67 .type = MT_DEVICE,
68 },
69
70 /* CPLD control registers */
71
72 {
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73 .virtual = (u32)OSIRIS_VA_CTRL0,
74 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL0),
75 .length = SZ_16K,
76 .type = MT_DEVICE,
77 }, {
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78 .virtual = (u32)OSIRIS_VA_CTRL1,
79 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL1),
80 .length = SZ_16K,
705630db 81 .type = MT_DEVICE,
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82 }, {
83 .virtual = (u32)OSIRIS_VA_CTRL2,
84 .pfn = __phys_to_pfn(OSIRIS_PA_CTRL2),
85 .length = SZ_16K,
705630db 86 .type = MT_DEVICE,
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87 }, {
88 .virtual = (u32)OSIRIS_VA_IDREG,
89 .pfn = __phys_to_pfn(OSIRIS_PA_IDREG),
90 .length = SZ_16K,
91 .type = MT_DEVICE,
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92 },
93};
94
95#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
96#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
97#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
98
99static struct s3c24xx_uart_clksrc osiris_serial_clocks[] = {
100 [0] = {
101 .name = "uclk",
102 .divisor = 1,
103 .min_baud = 0,
104 .max_baud = 0,
105 },
106 [1] = {
107 .name = "pclk",
108 .divisor = 1,
109 .min_baud = 0,
705630db 110 .max_baud = 0,
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111 }
112};
113
66a9b49a 114static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
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115 [0] = {
116 .hwport = 0,
117 .flags = 0,
118 .ucon = UCON,
119 .ulcon = ULCON,
120 .ufcon = UFCON,
121 .clocks = osiris_serial_clocks,
705630db 122 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
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123 },
124 [1] = {
e2e5810f 125 .hwport = 1,
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126 .flags = 0,
127 .ucon = UCON,
128 .ulcon = ULCON,
129 .ufcon = UFCON,
130 .clocks = osiris_serial_clocks,
705630db 131 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
110d322b 132 },
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133 [2] = {
134 .hwport = 2,
135 .flags = 0,
136 .ucon = UCON,
137 .ulcon = ULCON,
138 .ufcon = UFCON,
139 .clocks = osiris_serial_clocks,
140 .clocks_size = ARRAY_SIZE(osiris_serial_clocks),
141 }
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142};
143
144/* NAND Flash on Osiris board */
145
146static int external_map[] = { 2 };
147static int chip0_map[] = { 0 };
148static int chip1_map[] = { 1 };
149
da956fd6 150static struct mtd_partition osiris_default_nand_part[] = {
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151 [0] = {
152 .name = "Boot Agent",
153 .size = SZ_16K,
705630db 154 .offset = 0,
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155 },
156 [1] = {
157 .name = "/boot",
158 .size = SZ_4M - SZ_16K,
159 .offset = SZ_16K,
160 },
161 [2] = {
162 .name = "user1",
163 .offset = SZ_4M,
164 .size = SZ_32M - SZ_4M,
165 },
166 [3] = {
167 .name = "user2",
168 .offset = SZ_32M,
169 .size = MTDPART_SIZ_FULL,
170 }
171};
172
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173static struct mtd_partition osiris_default_nand_part_large[] = {
174 [0] = {
175 .name = "Boot Agent",
176 .size = SZ_128K,
177 .offset = 0,
178 },
179 [1] = {
180 .name = "/boot",
181 .size = SZ_4M - SZ_128K,
182 .offset = SZ_128K,
183 },
184 [2] = {
185 .name = "user1",
186 .offset = SZ_4M,
187 .size = SZ_32M - SZ_4M,
188 },
189 [3] = {
190 .name = "user2",
191 .offset = SZ_32M,
192 .size = MTDPART_SIZ_FULL,
193 }
194};
195
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196/* the Osiris has 3 selectable slots for nand-flash, the two
197 * on-board chip areas, as well as the external slot.
198 *
199 * Note, there is no current hot-plug support for the External
200 * socket.
201*/
202
203static struct s3c2410_nand_set osiris_nand_sets[] = {
204 [1] = {
205 .name = "External",
206 .nr_chips = 1,
207 .nr_map = external_map,
208 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
705630db 209 .partitions = osiris_default_nand_part,
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210 },
211 [0] = {
212 .name = "chip0",
213 .nr_chips = 1,
214 .nr_map = chip0_map,
215 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
705630db 216 .partitions = osiris_default_nand_part,
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217 },
218 [2] = {
219 .name = "chip1",
220 .nr_chips = 1,
221 .nr_map = chip1_map,
222 .nr_partitions = ARRAY_SIZE(osiris_default_nand_part),
705630db 223 .partitions = osiris_default_nand_part,
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224 },
225};
226
227static void osiris_nand_select(struct s3c2410_nand_set *set, int slot)
228{
229 unsigned int tmp;
230
231 slot = set->nr_map[slot] & 3;
232
233 pr_debug("osiris_nand: selecting slot %d (set %p,%p)\n",
234 slot, set, set->nr_map);
235
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236 tmp = __raw_readb(OSIRIS_VA_CTRL0);
237 tmp &= ~OSIRIS_CTRL0_NANDSEL;
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238 tmp |= slot;
239
c362aecd 240 pr_debug("osiris_nand: ctrl0 now %02x\n", tmp);
110d322b 241
c362aecd 242 __raw_writeb(tmp, OSIRIS_VA_CTRL0);
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243}
244
245static struct s3c2410_platform_nand osiris_nand_info = {
246 .tacls = 25,
247 .twrph0 = 60,
248 .twrph1 = 60,
249 .nr_sets = ARRAY_SIZE(osiris_nand_sets),
250 .sets = osiris_nand_sets,
251 .select_chip = osiris_nand_select,
252};
253
254/* PCMCIA control and configuration */
255
256static struct resource osiris_pcmcia_resource[] = {
257 [0] = {
258 .start = 0x0f000000,
259 .end = 0x0f100000,
260 .flags = IORESOURCE_MEM,
261 },
262 [1] = {
263 .start = 0x0c000000,
264 .end = 0x0c100000,
265 .flags = IORESOURCE_MEM,
266 }
267};
268
269static struct platform_device osiris_pcmcia = {
270 .name = "osiris-pcmcia",
271 .id = -1,
272 .num_resources = ARRAY_SIZE(osiris_pcmcia_resource),
273 .resource = osiris_pcmcia_resource,
274};
275
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276/* Osiris power management device */
277
278#ifdef CONFIG_PM
279static unsigned char pm_osiris_ctrl0;
280
281static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state)
282{
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283 unsigned int tmp;
284
5698bd28 285 pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0);
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286 tmp = pm_osiris_ctrl0 & ~OSIRIS_CTRL0_NANDSEL;
287
288 /* ensure correct NAND slot is selected on resume */
289 if ((pm_osiris_ctrl0 & OSIRIS_CTRL0_BOOT_INT) == 0)
290 tmp |= 2;
291
292 __raw_writeb(tmp, OSIRIS_VA_CTRL0);
293
4afcddae 294 /* ensure that an nRESET is not generated on resume. */
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295 s3c2410_gpio_setpin(S3C2410_GPA(21), 1);
296 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPIO_OUTPUT);
4afcddae 297
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298 return 0;
299}
300
301static int osiris_pm_resume(struct sys_device *sd)
302{
303 if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8)
304 __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1);
305
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306 __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0);
307
070276d5 308 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
4afcddae 309
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310 return 0;
311}
312
313#else
314#define osiris_pm_suspend NULL
315#define osiris_pm_resume NULL
316#endif
317
318static struct sysdev_class osiris_pm_sysclass = {
af5ca3f4 319 .name = "mach-osiris",
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320 .suspend = osiris_pm_suspend,
321 .resume = osiris_pm_resume,
322};
323
324static struct sys_device osiris_pm_sysdev = {
325 .cls = &osiris_pm_sysclass,
326};
327
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328/* I2C devices fitted. */
329
330static struct i2c_board_info osiris_i2c_devs[] __initdata = {
331 {
332 I2C_BOARD_INFO("tps65011", 0x48),
333 .irq = IRQ_EINT20,
334 },
335};
336
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337/* Standard Osiris devices */
338
339static struct platform_device *osiris_devices[] __initdata = {
3e1b776c 340 &s3c_device_i2c0,
55ba86bc 341 &s3c_device_wdt,
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342 &s3c_device_nand,
343 &osiris_pcmcia,
344};
345
2bc7509f 346static struct clk *osiris_clocks[] __initdata = {
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347 &s3c24xx_dclk0,
348 &s3c24xx_dclk1,
349 &s3c24xx_clkout0,
350 &s3c24xx_clkout1,
351 &s3c24xx_uclk,
352};
353
da956fd6 354static void __init osiris_map_io(void)
110d322b 355{
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356 unsigned long flags;
357
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358 /* initialise the clocks */
359
d96a9804 360 s3c24xx_dclk0.parent = &clk_upll;
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361 s3c24xx_dclk0.rate = 12*1000*1000;
362
d96a9804 363 s3c24xx_dclk1.parent = &clk_upll;
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364 s3c24xx_dclk1.rate = 24*1000*1000;
365
366 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
367 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
368
369 s3c24xx_uclk.parent = &s3c24xx_clkout1;
370
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371 s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks));
372
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373 s3c_device_nand.dev.platform_data = &osiris_nand_info;
374
375 s3c24xx_init_io(osiris_iodesc, ARRAY_SIZE(osiris_iodesc));
376 s3c24xx_init_clocks(0);
377 s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs));
110d322b 378
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379 /* check for the newer revision boards with large page nand */
380
381 if ((__raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK) >= 4) {
382 printk(KERN_INFO "OSIRIS-B detected (revision %d)\n",
383 __raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK);
384 osiris_nand_sets[0].partitions = osiris_default_nand_part_large;
385 osiris_nand_sets[0].nr_partitions = ARRAY_SIZE(osiris_default_nand_part_large);
386 } else {
387 /* write-protect line to the NAND */
070276d5 388 s3c2410_gpio_setpin(S3C2410_GPA(0), 1);
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389 }
390
110d322b 391 /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */
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392
393 local_irq_save(flags);
110d322b 394 __raw_writel(__raw_readl(S3C2410_BWSCON) | S3C2410_BWSCON_ST1 | S3C2410_BWSCON_ST2 | S3C2410_BWSCON_ST3 | S3C2410_BWSCON_ST4 | S3C2410_BWSCON_ST5, S3C2410_BWSCON);
da956fd6 395 local_irq_restore(flags);
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396}
397
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398static void __init osiris_init(void)
399{
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400 sysdev_class_register(&osiris_pm_sysclass);
401 sysdev_register(&osiris_pm_sysdev);
402
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403 s3c_i2c0_set_platdata(NULL);
404
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405 i2c_register_board_info(0, osiris_i2c_devs,
406 ARRAY_SIZE(osiris_i2c_devs));
407
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408 platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices));
409};
410
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411MACHINE_START(OSIRIS, "Simtec-OSIRIS")
412 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
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413 .phys_io = S3C2410_PA_UART,
414 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
415 .boot_params = S3C2410_SDRAM_PA + 0x100,
416 .map_io = osiris_map_io,
417 .init_irq = s3c24xx_init_irq,
5698bd28 418 .init_machine = osiris_init,
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419 .timer = &s3c24xx_timer,
420MACHINE_END
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