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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> |
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34 | #include <asm/irq.h> |
35 | #include <asm/mach-types.h> | |
36 | ||
a2b7ba9c | 37 | #include <plat/regs-serial.h> |
a09e64fb RK |
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> |
a2b7ba9c BD |
50 | #include <plat/devs.h> |
51 | #include <plat/cpu.h> | |
110d322b | 52 | |
6cbdc8c5 | 53 | /* onboard perihperal map */ |
110d322b BD |
54 | |
55 | static 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 | { | |
c362aecd BD |
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, |
c362aecd BD |
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 | ||
99 | static 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, |
110d322b BD |
111 | } |
112 | }; | |
113 | ||
66a9b49a | 114 | static 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 | }, |
ca7aa4de BD |
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 | ||
146 | static int external_map[] = { 2 }; | |
147 | static int chip0_map[] = { 0 }; | |
148 | static int chip1_map[] = { 1 }; | |
149 | ||
da956fd6 | 150 | static 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 | ||
3c3e69cd BD |
173 | static 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 | ||
110d322b BD |
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 | ||
203 | static 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 | ||
227 | static 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 | ||
c362aecd BD |
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); |
110d322b BD |
243 | } |
244 | ||
245 | static 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 | ||
256 | static 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 | ||
269 | static 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 | ||
5698bd28 BD |
276 | /* Osiris power management device */ |
277 | ||
278 | #ifdef CONFIG_PM | |
279 | static unsigned char pm_osiris_ctrl0; | |
280 | ||
281 | static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state) | |
282 | { | |
28047ece BD |
283 | unsigned int tmp; |
284 | ||
5698bd28 | 285 | pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0); |
28047ece BD |
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. */ |
070276d5 BD |
295 | s3c2410_gpio_setpin(S3C2410_GPA(21), 1); |
296 | s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPIO_OUTPUT); | |
4afcddae | 297 | |
5698bd28 BD |
298 | return 0; |
299 | } | |
300 | ||
301 | static 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 | ||
28047ece BD |
306 | __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0); |
307 | ||
070276d5 | 308 | s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT); |
4afcddae | 309 | |
5698bd28 BD |
310 | return 0; |
311 | } | |
312 | ||
313 | #else | |
314 | #define osiris_pm_suspend NULL | |
315 | #define osiris_pm_resume NULL | |
316 | #endif | |
317 | ||
318 | static struct sysdev_class osiris_pm_sysclass = { | |
af5ca3f4 | 319 | .name = "mach-osiris", |
5698bd28 BD |
320 | .suspend = osiris_pm_suspend, |
321 | .resume = osiris_pm_resume, | |
322 | }; | |
323 | ||
324 | static struct sys_device osiris_pm_sysdev = { | |
325 | .cls = &osiris_pm_sysclass, | |
326 | }; | |
327 | ||
f3374221 BD |
328 | /* I2C devices fitted. */ |
329 | ||
330 | static struct i2c_board_info osiris_i2c_devs[] __initdata = { | |
331 | { | |
332 | I2C_BOARD_INFO("tps65011", 0x48), | |
333 | .irq = IRQ_EINT20, | |
334 | }, | |
335 | }; | |
336 | ||
110d322b BD |
337 | /* Standard Osiris devices */ |
338 | ||
339 | static struct platform_device *osiris_devices[] __initdata = { | |
3e1b776c | 340 | &s3c_device_i2c0, |
55ba86bc | 341 | &s3c_device_wdt, |
110d322b BD |
342 | &s3c_device_nand, |
343 | &osiris_pcmcia, | |
344 | }; | |
345 | ||
2bc7509f | 346 | static 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 | 354 | static void __init osiris_map_io(void) |
110d322b | 355 | { |
da956fd6 BD |
356 | unsigned long flags; |
357 | ||
110d322b BD |
358 | /* initialise the clocks */ |
359 | ||
d96a9804 | 360 | s3c24xx_dclk0.parent = &clk_upll; |
110d322b BD |
361 | s3c24xx_dclk0.rate = 12*1000*1000; |
362 | ||
d96a9804 | 363 | s3c24xx_dclk1.parent = &clk_upll; |
110d322b BD |
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 | ||
ce89c206 BD |
371 | s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks)); |
372 | ||
110d322b BD |
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 | |
3c3e69cd BD |
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); |
3c3e69cd BD |
389 | } |
390 | ||
110d322b | 391 | /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */ |
da956fd6 BD |
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); |
110d322b BD |
396 | } |
397 | ||
57e5171c BD |
398 | static void __init osiris_init(void) |
399 | { | |
5698bd28 BD |
400 | sysdev_class_register(&osiris_pm_sysclass); |
401 | sysdev_register(&osiris_pm_sysdev); | |
402 | ||
3e1b776c BD |
403 | s3c_i2c0_set_platdata(NULL); |
404 | ||
f3374221 BD |
405 | i2c_register_board_info(0, osiris_i2c_devs, |
406 | ARRAY_SIZE(osiris_i2c_devs)); | |
407 | ||
57e5171c BD |
408 | platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices)); |
409 | }; | |
410 | ||
110d322b BD |
411 | MACHINE_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, |
110d322b BD |
419 | .timer = &s3c24xx_timer, |
420 | MACHINE_END |