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a21765a7 | 1 | /* linux/arch/arm/mach-s3c2440/mach-osiris.c |
110d322b | 2 | * |
f3374221 | 3 | * Copyright (c) 2005,2008 Simtec Electronics |
110d322b BD |
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> |
110d322b BD |
25 | |
26 | #include <asm/mach/arch.h> | |
27 | #include <asm/mach/map.h> | |
28 | #include <asm/mach/irq.h> | |
29 | ||
a09e64fb RK |
30 | #include <mach/osiris-map.h> |
31 | #include <mach/osiris-cpld.h> | |
110d322b | 32 | |
a09e64fb | 33 | #include <mach/hardware.h> |
110d322b BD |
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> |
a09e64fb RK |
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> |
110d322b BD |
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> |
a2b7ba9c BD |
51 | #include <plat/devs.h> |
52 | #include <plat/cpu.h> | |
110d322b | 53 | |
6cbdc8c5 | 54 | /* onboard perihperal map */ |
110d322b BD |
55 | |
56 | static 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 | { | |
c362aecd BD |
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, |
110d322b BD |
83 | }, { |
84 | .virtual = (u32)OSIRIS_VA_CTRL2, | |
85 | .pfn = __phys_to_pfn(OSIRIS_PA_CTRL2), | |
86 | .length = SZ_16K, | |
705630db | 87 | .type = MT_DEVICE, |
c362aecd BD |
88 | }, { |
89 | .virtual = (u32)OSIRIS_VA_IDREG, | |
90 | .pfn = __phys_to_pfn(OSIRIS_PA_IDREG), | |
91 | .length = SZ_16K, | |
92 | .type = MT_DEVICE, | |
110d322b BD |
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 | ||
100 | static 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, |
110d322b BD |
112 | } |
113 | }; | |
114 | ||
66a9b49a | 115 | static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = { |
110d322b BD |
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 | }, |
ca7aa4de BD |
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 | ||
147 | static int external_map[] = { 2 }; | |
148 | static int chip0_map[] = { 0 }; | |
149 | static int chip1_map[] = { 1 }; | |
150 | ||
da956fd6 | 151 | static struct mtd_partition osiris_default_nand_part[] = { |
110d322b BD |
152 | [0] = { |
153 | .name = "Boot Agent", | |
154 | .size = SZ_16K, | |
705630db | 155 | .offset = 0, |
110d322b BD |
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 | ||
3c3e69cd BD |
174 | static 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 | ||
110d322b BD |
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 | ||
204 | static 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, |
110d322b BD |
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, |
110d322b BD |
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, |
110d322b BD |
225 | }, |
226 | }; | |
227 | ||
228 | static 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 | ||
c362aecd BD |
237 | tmp = __raw_readb(OSIRIS_VA_CTRL0); |
238 | tmp &= ~OSIRIS_CTRL0_NANDSEL; | |
110d322b BD |
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); |
110d322b BD |
244 | } |
245 | ||
246 | static 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 | ||
257 | static 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 | ||
270 | static 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 | ||
5698bd28 BD |
277 | /* Osiris power management device */ |
278 | ||
279 | #ifdef CONFIG_PM | |
280 | static unsigned char pm_osiris_ctrl0; | |
281 | ||
282 | static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state) | |
283 | { | |
28047ece BD |
284 | unsigned int tmp; |
285 | ||
5698bd28 | 286 | pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0); |
28047ece BD |
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. */ |
070276d5 BD |
296 | s3c2410_gpio_setpin(S3C2410_GPA(21), 1); |
297 | s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPIO_OUTPUT); | |
4afcddae | 298 | |
5698bd28 BD |
299 | return 0; |
300 | } | |
301 | ||
302 | static 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 | ||
28047ece BD |
307 | __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0); |
308 | ||
070276d5 | 309 | s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT); |
4afcddae | 310 | |
5698bd28 BD |
311 | return 0; |
312 | } | |
313 | ||
314 | #else | |
315 | #define osiris_pm_suspend NULL | |
316 | #define osiris_pm_resume NULL | |
317 | #endif | |
318 | ||
319 | static struct sysdev_class osiris_pm_sysclass = { | |
af5ca3f4 | 320 | .name = "mach-osiris", |
5698bd28 BD |
321 | .suspend = osiris_pm_suspend, |
322 | .resume = osiris_pm_resume, | |
323 | }; | |
324 | ||
325 | static struct sys_device osiris_pm_sysdev = { | |
326 | .cls = &osiris_pm_sysclass, | |
327 | }; | |
328 | ||
f3374221 BD |
329 | /* I2C devices fitted. */ |
330 | ||
331 | static struct i2c_board_info osiris_i2c_devs[] __initdata = { | |
332 | { | |
333 | I2C_BOARD_INFO("tps65011", 0x48), | |
334 | .irq = IRQ_EINT20, | |
335 | }, | |
336 | }; | |
337 | ||
110d322b BD |
338 | /* Standard Osiris devices */ |
339 | ||
340 | static struct platform_device *osiris_devices[] __initdata = { | |
3e1b776c | 341 | &s3c_device_i2c0, |
55ba86bc | 342 | &s3c_device_wdt, |
110d322b BD |
343 | &s3c_device_nand, |
344 | &osiris_pcmcia, | |
345 | }; | |
346 | ||
2bc7509f | 347 | static struct clk *osiris_clocks[] __initdata = { |
110d322b BD |
348 | &s3c24xx_dclk0, |
349 | &s3c24xx_dclk1, | |
350 | &s3c24xx_clkout0, | |
351 | &s3c24xx_clkout1, | |
352 | &s3c24xx_uclk, | |
353 | }; | |
354 | ||
baf6b281 BD |
355 | static 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 | 361 | static void __init osiris_map_io(void) |
110d322b | 362 | { |
da956fd6 BD |
363 | unsigned long flags; |
364 | ||
110d322b BD |
365 | /* initialise the clocks */ |
366 | ||
d96a9804 | 367 | s3c24xx_dclk0.parent = &clk_upll; |
110d322b BD |
368 | s3c24xx_dclk0.rate = 12*1000*1000; |
369 | ||
d96a9804 | 370 | s3c24xx_dclk1.parent = &clk_upll; |
110d322b BD |
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 | ||
ce89c206 BD |
378 | s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks)); |
379 | ||
110d322b BD |
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 | |
3c3e69cd BD |
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); |
3c3e69cd BD |
396 | } |
397 | ||
110d322b | 398 | /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */ |
da956fd6 BD |
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); |
110d322b BD |
403 | } |
404 | ||
57e5171c BD |
405 | static void __init osiris_init(void) |
406 | { | |
5698bd28 BD |
407 | sysdev_class_register(&osiris_pm_sysclass); |
408 | sysdev_register(&osiris_pm_sysdev); | |
409 | ||
3e1b776c BD |
410 | s3c_i2c0_set_platdata(NULL); |
411 | ||
baf6b281 BD |
412 | s3c_cpufreq_setboard(&osiris_cpufreq); |
413 | ||
f3374221 BD |
414 | i2c_register_board_info(0, osiris_i2c_devs, |
415 | ARRAY_SIZE(osiris_i2c_devs)); | |
416 | ||
57e5171c BD |
417 | platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices)); |
418 | }; | |
419 | ||
110d322b BD |
420 | MACHINE_START(OSIRIS, "Simtec-OSIRIS") |
421 | /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ | |
110d322b BD |
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, |
110d322b BD |
428 | .timer = &s3c24xx_timer, |
429 | MACHINE_END |