diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-19 16:18:39 -0500 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-19 16:18:39 -0500 |
commit | 59b8175c771040afcd4ad67022b0cc80c216b866 (patch) | |
tree | 4ef5935bee1e342716d49b9d4b99e3fa835526e6 /arch/arm/mach-at91/at91sam9260.c | |
parent | 920841d8d1d61bc12b43f95a579a5374f6d98f81 (diff) | |
parent | 3b0eb4a195a124567cd0dd6f700f8388def542c6 (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (117 commits)
[ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports
[ARM] 4140/1: AACI stability add ac97 timeout and retries
[ARM] 4139/1: AACI record support
[ARM] 4138/1: AACI: multiple channel support for IRQ handling
[ARM] 4211/1: Provide a defconfig for ns9xxx
[ARM] 4210/1: base for new machine type "NetSilicon NS9360"
[ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM
[ARM] 4221/1: S3C2443: DMA support
[ARM] 4220/1: S3C24XX: DMA system initialised from sysdev
[ARM] 4219/1: S3C2443: DMA source definitions
[ARM] 4218/1: S3C2412: fix CONFIG_CPU_S3C2412_ONLY wrt to S3C2443
[ARM] 4217/1: S3C24XX: remove the dma channel show at startup
[ARM] 4090/2: avoid clash between PXA and SA1111 defines
[ARM] 4216/1: add .gitignore entries for ARM specific files
[ARM] 4214/2: S3C2410: Add Armzone QT2410
[ARM] 4215/1: s3c2410 usb device: per-platform vbus_draw
[ARM] 4213/1: S3C2410 - Update definition of ADCTSC_XY_PST
[ARM] 4098/1: ARM: rtc_lock only used with rtc_cmos
[ARM] 4137/1: Add kexec support
[ARM] 4201/1: SMP barriers pair needed for the secondary boot process
...
Fix up conflict due to typedef removal in sound/arm/aaci.h
Diffstat (limited to 'arch/arm/mach-at91/at91sam9260.c')
-rw-r--r-- | arch/arm/mach-at91/at91sam9260.c | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c new file mode 100644 index 000000000000..6ea41d8266cb --- /dev/null +++ b/arch/arm/mach-at91/at91sam9260.c | |||
@@ -0,0 +1,367 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-at91/at91sam9260.c | ||
3 | * | ||
4 | * Copyright (C) 2006 SAN People | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | */ | ||
12 | |||
13 | #include <linux/module.h> | ||
14 | |||
15 | #include <asm/mach/arch.h> | ||
16 | #include <asm/mach/map.h> | ||
17 | #include <asm/arch/cpu.h> | ||
18 | #include <asm/arch/at91sam9260.h> | ||
19 | #include <asm/arch/at91_pmc.h> | ||
20 | #include <asm/arch/at91_rstc.h> | ||
21 | |||
22 | #include "generic.h" | ||
23 | #include "clock.h" | ||
24 | |||
25 | static struct map_desc at91sam9260_io_desc[] __initdata = { | ||
26 | { | ||
27 | .virtual = AT91_VA_BASE_SYS, | ||
28 | .pfn = __phys_to_pfn(AT91_BASE_SYS), | ||
29 | .length = SZ_16K, | ||
30 | .type = MT_DEVICE, | ||
31 | } | ||
32 | }; | ||
33 | |||
34 | static struct map_desc at91sam9260_sram_desc[] __initdata = { | ||
35 | { | ||
36 | .virtual = AT91_IO_VIRT_BASE - AT91SAM9260_SRAM0_SIZE, | ||
37 | .pfn = __phys_to_pfn(AT91SAM9260_SRAM0_BASE), | ||
38 | .length = AT91SAM9260_SRAM0_SIZE, | ||
39 | .type = MT_DEVICE, | ||
40 | }, { | ||
41 | .virtual = AT91_IO_VIRT_BASE - AT91SAM9260_SRAM0_SIZE - AT91SAM9260_SRAM1_SIZE, | ||
42 | .pfn = __phys_to_pfn(AT91SAM9260_SRAM1_BASE), | ||
43 | .length = AT91SAM9260_SRAM1_SIZE, | ||
44 | .type = MT_DEVICE, | ||
45 | } | ||
46 | }; | ||
47 | |||
48 | static struct map_desc at91sam9xe_sram_desc[] __initdata = { | ||
49 | { | ||
50 | .pfn = __phys_to_pfn(AT91SAM9XE_SRAM_BASE), | ||
51 | .type = MT_DEVICE, | ||
52 | } | ||
53 | }; | ||
54 | |||
55 | /* -------------------------------------------------------------------- | ||
56 | * Clocks | ||
57 | * -------------------------------------------------------------------- */ | ||
58 | |||
59 | /* | ||
60 | * The peripheral clocks. | ||
61 | */ | ||
62 | static struct clk pioA_clk = { | ||
63 | .name = "pioA_clk", | ||
64 | .pmc_mask = 1 << AT91SAM9260_ID_PIOA, | ||
65 | .type = CLK_TYPE_PERIPHERAL, | ||
66 | }; | ||
67 | static struct clk pioB_clk = { | ||
68 | .name = "pioB_clk", | ||
69 | .pmc_mask = 1 << AT91SAM9260_ID_PIOB, | ||
70 | .type = CLK_TYPE_PERIPHERAL, | ||
71 | }; | ||
72 | static struct clk pioC_clk = { | ||
73 | .name = "pioC_clk", | ||
74 | .pmc_mask = 1 << AT91SAM9260_ID_PIOC, | ||
75 | .type = CLK_TYPE_PERIPHERAL, | ||
76 | }; | ||
77 | static struct clk adc_clk = { | ||
78 | .name = "adc_clk", | ||
79 | .pmc_mask = 1 << AT91SAM9260_ID_ADC, | ||
80 | .type = CLK_TYPE_PERIPHERAL, | ||
81 | }; | ||
82 | static struct clk usart0_clk = { | ||
83 | .name = "usart0_clk", | ||
84 | .pmc_mask = 1 << AT91SAM9260_ID_US0, | ||
85 | .type = CLK_TYPE_PERIPHERAL, | ||
86 | }; | ||
87 | static struct clk usart1_clk = { | ||
88 | .name = "usart1_clk", | ||
89 | .pmc_mask = 1 << AT91SAM9260_ID_US1, | ||
90 | .type = CLK_TYPE_PERIPHERAL, | ||
91 | }; | ||
92 | static struct clk usart2_clk = { | ||
93 | .name = "usart2_clk", | ||
94 | .pmc_mask = 1 << AT91SAM9260_ID_US2, | ||
95 | .type = CLK_TYPE_PERIPHERAL, | ||
96 | }; | ||
97 | static struct clk mmc_clk = { | ||
98 | .name = "mci_clk", | ||
99 | .pmc_mask = 1 << AT91SAM9260_ID_MCI, | ||
100 | .type = CLK_TYPE_PERIPHERAL, | ||
101 | }; | ||
102 | static struct clk udc_clk = { | ||
103 | .name = "udc_clk", | ||
104 | .pmc_mask = 1 << AT91SAM9260_ID_UDP, | ||
105 | .type = CLK_TYPE_PERIPHERAL, | ||
106 | }; | ||
107 | static struct clk twi_clk = { | ||
108 | .name = "twi_clk", | ||
109 | .pmc_mask = 1 << AT91SAM9260_ID_TWI, | ||
110 | .type = CLK_TYPE_PERIPHERAL, | ||
111 | }; | ||
112 | static struct clk spi0_clk = { | ||
113 | .name = "spi0_clk", | ||
114 | .pmc_mask = 1 << AT91SAM9260_ID_SPI0, | ||
115 | .type = CLK_TYPE_PERIPHERAL, | ||
116 | }; | ||
117 | static struct clk spi1_clk = { | ||
118 | .name = "spi1_clk", | ||
119 | .pmc_mask = 1 << AT91SAM9260_ID_SPI1, | ||
120 | .type = CLK_TYPE_PERIPHERAL, | ||
121 | }; | ||
122 | static struct clk tc0_clk = { | ||
123 | .name = "tc0_clk", | ||
124 | .pmc_mask = 1 << AT91SAM9260_ID_TC0, | ||
125 | .type = CLK_TYPE_PERIPHERAL, | ||
126 | }; | ||
127 | static struct clk tc1_clk = { | ||
128 | .name = "tc1_clk", | ||
129 | .pmc_mask = 1 << AT91SAM9260_ID_TC1, | ||
130 | .type = CLK_TYPE_PERIPHERAL, | ||
131 | }; | ||
132 | static struct clk tc2_clk = { | ||
133 | .name = "tc2_clk", | ||
134 | .pmc_mask = 1 << AT91SAM9260_ID_TC2, | ||
135 | .type = CLK_TYPE_PERIPHERAL, | ||
136 | }; | ||
137 | static struct clk ohci_clk = { | ||
138 | .name = "ohci_clk", | ||
139 | .pmc_mask = 1 << AT91SAM9260_ID_UHP, | ||
140 | .type = CLK_TYPE_PERIPHERAL, | ||
141 | }; | ||
142 | static struct clk macb_clk = { | ||
143 | .name = "macb_clk", | ||
144 | .pmc_mask = 1 << AT91SAM9260_ID_EMAC, | ||
145 | .type = CLK_TYPE_PERIPHERAL, | ||
146 | }; | ||
147 | static struct clk isi_clk = { | ||
148 | .name = "isi_clk", | ||
149 | .pmc_mask = 1 << AT91SAM9260_ID_ISI, | ||
150 | .type = CLK_TYPE_PERIPHERAL, | ||
151 | }; | ||
152 | static struct clk usart3_clk = { | ||
153 | .name = "usart3_clk", | ||
154 | .pmc_mask = 1 << AT91SAM9260_ID_US3, | ||
155 | .type = CLK_TYPE_PERIPHERAL, | ||
156 | }; | ||
157 | static struct clk usart4_clk = { | ||
158 | .name = "usart4_clk", | ||
159 | .pmc_mask = 1 << AT91SAM9260_ID_US4, | ||
160 | .type = CLK_TYPE_PERIPHERAL, | ||
161 | }; | ||
162 | static struct clk usart5_clk = { | ||
163 | .name = "usart5_clk", | ||
164 | .pmc_mask = 1 << AT91SAM9260_ID_US5, | ||
165 | .type = CLK_TYPE_PERIPHERAL, | ||
166 | }; | ||
167 | static struct clk tc3_clk = { | ||
168 | .name = "tc3_clk", | ||
169 | .pmc_mask = 1 << AT91SAM9260_ID_TC3, | ||
170 | .type = CLK_TYPE_PERIPHERAL, | ||
171 | }; | ||
172 | static struct clk tc4_clk = { | ||
173 | .name = "tc4_clk", | ||
174 | .pmc_mask = 1 << AT91SAM9260_ID_TC4, | ||
175 | .type = CLK_TYPE_PERIPHERAL, | ||
176 | }; | ||
177 | static struct clk tc5_clk = { | ||
178 | .name = "tc5_clk", | ||
179 | .pmc_mask = 1 << AT91SAM9260_ID_TC5, | ||
180 | .type = CLK_TYPE_PERIPHERAL, | ||
181 | }; | ||
182 | |||
183 | static struct clk *periph_clocks[] __initdata = { | ||
184 | &pioA_clk, | ||
185 | &pioB_clk, | ||
186 | &pioC_clk, | ||
187 | &adc_clk, | ||
188 | &usart0_clk, | ||
189 | &usart1_clk, | ||
190 | &usart2_clk, | ||
191 | &mmc_clk, | ||
192 | &udc_clk, | ||
193 | &twi_clk, | ||
194 | &spi0_clk, | ||
195 | &spi1_clk, | ||
196 | // ssc | ||
197 | &tc0_clk, | ||
198 | &tc1_clk, | ||
199 | &tc2_clk, | ||
200 | &ohci_clk, | ||
201 | &macb_clk, | ||
202 | &isi_clk, | ||
203 | &usart3_clk, | ||
204 | &usart4_clk, | ||
205 | &usart5_clk, | ||
206 | &tc3_clk, | ||
207 | &tc4_clk, | ||
208 | &tc5_clk, | ||
209 | // irq0 .. irq2 | ||
210 | }; | ||
211 | |||
212 | /* | ||
213 | * The two programmable clocks. | ||
214 | * You must configure pin multiplexing to bring these signals out. | ||
215 | */ | ||
216 | static struct clk pck0 = { | ||
217 | .name = "pck0", | ||
218 | .pmc_mask = AT91_PMC_PCK0, | ||
219 | .type = CLK_TYPE_PROGRAMMABLE, | ||
220 | .id = 0, | ||
221 | }; | ||
222 | static struct clk pck1 = { | ||
223 | .name = "pck1", | ||
224 | .pmc_mask = AT91_PMC_PCK1, | ||
225 | .type = CLK_TYPE_PROGRAMMABLE, | ||
226 | .id = 1, | ||
227 | }; | ||
228 | |||
229 | static void __init at91sam9260_register_clocks(void) | ||
230 | { | ||
231 | int i; | ||
232 | |||
233 | for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) | ||
234 | clk_register(periph_clocks[i]); | ||
235 | |||
236 | clk_register(&pck0); | ||
237 | clk_register(&pck1); | ||
238 | } | ||
239 | |||
240 | /* -------------------------------------------------------------------- | ||
241 | * GPIO | ||
242 | * -------------------------------------------------------------------- */ | ||
243 | |||
244 | static struct at91_gpio_bank at91sam9260_gpio[] = { | ||
245 | { | ||
246 | .id = AT91SAM9260_ID_PIOA, | ||
247 | .offset = AT91_PIOA, | ||
248 | .clock = &pioA_clk, | ||
249 | }, { | ||
250 | .id = AT91SAM9260_ID_PIOB, | ||
251 | .offset = AT91_PIOB, | ||
252 | .clock = &pioB_clk, | ||
253 | }, { | ||
254 | .id = AT91SAM9260_ID_PIOC, | ||
255 | .offset = AT91_PIOC, | ||
256 | .clock = &pioC_clk, | ||
257 | } | ||
258 | }; | ||
259 | |||
260 | static void at91sam9260_reset(void) | ||
261 | { | ||
262 | at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST); | ||
263 | } | ||
264 | |||
265 | |||
266 | /* -------------------------------------------------------------------- | ||
267 | * AT91SAM9260 processor initialization | ||
268 | * -------------------------------------------------------------------- */ | ||
269 | |||
270 | static void __init at91sam9xe_initialize(void) | ||
271 | { | ||
272 | unsigned long cidr, sram_size; | ||
273 | |||
274 | cidr = at91_sys_read(AT91_DBGU_CIDR); | ||
275 | |||
276 | switch (cidr & AT91_CIDR_SRAMSIZ) { | ||
277 | case AT91_CIDR_SRAMSIZ_32K: | ||
278 | sram_size = 2 * SZ_16K; | ||
279 | break; | ||
280 | case AT91_CIDR_SRAMSIZ_16K: | ||
281 | default: | ||
282 | sram_size = SZ_16K; | ||
283 | } | ||
284 | |||
285 | at91sam9xe_sram_desc->virtual = AT91_IO_VIRT_BASE - sram_size; | ||
286 | at91sam9xe_sram_desc->length = sram_size; | ||
287 | |||
288 | iotable_init(at91sam9xe_sram_desc, ARRAY_SIZE(at91sam9xe_sram_desc)); | ||
289 | } | ||
290 | |||
291 | void __init at91sam9260_initialize(unsigned long main_clock) | ||
292 | { | ||
293 | /* Map peripherals */ | ||
294 | iotable_init(at91sam9260_io_desc, ARRAY_SIZE(at91sam9260_io_desc)); | ||
295 | |||
296 | if (cpu_is_at91sam9xe()) | ||
297 | at91sam9xe_initialize(); | ||
298 | else | ||
299 | iotable_init(at91sam9260_sram_desc, ARRAY_SIZE(at91sam9260_sram_desc)); | ||
300 | |||
301 | at91_arch_reset = at91sam9260_reset; | ||
302 | at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1) | ||
303 | | (1 << AT91SAM9260_ID_IRQ2); | ||
304 | |||
305 | /* Init clock subsystem */ | ||
306 | at91_clock_init(main_clock); | ||
307 | |||
308 | /* Register the processor-specific clocks */ | ||
309 | at91sam9260_register_clocks(); | ||
310 | |||
311 | /* Register GPIO subsystem */ | ||
312 | at91_gpio_init(at91sam9260_gpio, 3); | ||
313 | } | ||
314 | |||
315 | /* -------------------------------------------------------------------- | ||
316 | * Interrupt initialization | ||
317 | * -------------------------------------------------------------------- */ | ||
318 | |||
319 | /* | ||
320 | * The default interrupt priority levels (0 = lowest, 7 = highest). | ||
321 | */ | ||
322 | static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = { | ||
323 | 7, /* Advanced Interrupt Controller */ | ||
324 | 7, /* System Peripherals */ | ||
325 | 0, /* Parallel IO Controller A */ | ||
326 | 0, /* Parallel IO Controller B */ | ||
327 | 0, /* Parallel IO Controller C */ | ||
328 | 0, /* Analog-to-Digital Converter */ | ||
329 | 6, /* USART 0 */ | ||
330 | 6, /* USART 1 */ | ||
331 | 6, /* USART 2 */ | ||
332 | 0, /* Multimedia Card Interface */ | ||
333 | 4, /* USB Device Port */ | ||
334 | 0, /* Two-Wire Interface */ | ||
335 | 6, /* Serial Peripheral Interface 0 */ | ||
336 | 6, /* Serial Peripheral Interface 1 */ | ||
337 | 5, /* Serial Synchronous Controller */ | ||
338 | 0, | ||
339 | 0, | ||
340 | 0, /* Timer Counter 0 */ | ||
341 | 0, /* Timer Counter 1 */ | ||
342 | 0, /* Timer Counter 2 */ | ||
343 | 3, /* USB Host port */ | ||
344 | 3, /* Ethernet */ | ||
345 | 0, /* Image Sensor Interface */ | ||
346 | 6, /* USART 3 */ | ||
347 | 6, /* USART 4 */ | ||
348 | 6, /* USART 5 */ | ||
349 | 0, /* Timer Counter 3 */ | ||
350 | 0, /* Timer Counter 4 */ | ||
351 | 0, /* Timer Counter 5 */ | ||
352 | 0, /* Advanced Interrupt Controller */ | ||
353 | 0, /* Advanced Interrupt Controller */ | ||
354 | 0, /* Advanced Interrupt Controller */ | ||
355 | }; | ||
356 | |||
357 | void __init at91sam9260_init_interrupts(unsigned int priority[NR_AIC_IRQS]) | ||
358 | { | ||
359 | if (!priority) | ||
360 | priority = at91sam9260_default_irq_priority; | ||
361 | |||
362 | /* Initialize the AIC interrupt controller */ | ||
363 | at91_aic_init(priority); | ||
364 | |||
365 | /* Enable GPIO interrupts */ | ||
366 | at91_gpio_irq_setup(); | ||
367 | } | ||