ARM: at91: Convert the boards to the init_time callback
[deliverable/linux.git] / arch / arm / mach-at91 / at91sam9260.c
CommitLineData
62c1660d 1/*
9d041268 2 * arch/arm/mach-at91/at91sam9260.c
62c1660d
AV
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>
d8dfa2d4 14#include <linux/platform_device.h>
2edb90ae 15#include <linux/clk/at91_pmc.h>
62c1660d 16
c9dfafba 17#include <asm/proc-fns.h>
80b02c17 18#include <asm/irq.h>
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19#include <asm/mach/arch.h>
20#include <asm/mach/map.h>
9f97da78 21#include <asm/system_misc.h>
a09e64fb 22#include <mach/cpu.h>
8c3583b6 23#include <mach/at91_dbgu.h>
a09e64fb 24#include <mach/at91sam9260.h>
ac11a1d4 25#include <mach/hardware.h>
62c1660d 26
a510b9ba 27#include "at91_aic.h"
21d08b9d 28#include "soc.h"
62c1660d 29#include "generic.h"
faee0cc3 30#include "sam9_smc.h"
5ad945ea 31#include "pm.h"
62c1660d 32
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33#if defined(CONFIG_OLD_CLK_AT91)
34#include "clock.h"
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35/* --------------------------------------------------------------------
36 * Clocks
37 * -------------------------------------------------------------------- */
38
39/*
40 * The peripheral clocks.
41 */
42static struct clk pioA_clk = {
43 .name = "pioA_clk",
44 .pmc_mask = 1 << AT91SAM9260_ID_PIOA,
45 .type = CLK_TYPE_PERIPHERAL,
46};
47static struct clk pioB_clk = {
48 .name = "pioB_clk",
49 .pmc_mask = 1 << AT91SAM9260_ID_PIOB,
50 .type = CLK_TYPE_PERIPHERAL,
51};
52static struct clk pioC_clk = {
53 .name = "pioC_clk",
54 .pmc_mask = 1 << AT91SAM9260_ID_PIOC,
55 .type = CLK_TYPE_PERIPHERAL,
56};
57static struct clk adc_clk = {
58 .name = "adc_clk",
59 .pmc_mask = 1 << AT91SAM9260_ID_ADC,
60 .type = CLK_TYPE_PERIPHERAL,
61};
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62
63static struct clk adc_op_clk = {
64 .name = "adc_op_clk",
65 .type = CLK_TYPE_PERIPHERAL,
66 .rate_hz = 5000000,
67};
68
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69static struct clk usart0_clk = {
70 .name = "usart0_clk",
71 .pmc_mask = 1 << AT91SAM9260_ID_US0,
72 .type = CLK_TYPE_PERIPHERAL,
73};
74static struct clk usart1_clk = {
75 .name = "usart1_clk",
76 .pmc_mask = 1 << AT91SAM9260_ID_US1,
77 .type = CLK_TYPE_PERIPHERAL,
78};
79static struct clk usart2_clk = {
80 .name = "usart2_clk",
81 .pmc_mask = 1 << AT91SAM9260_ID_US2,
82 .type = CLK_TYPE_PERIPHERAL,
83};
84static struct clk mmc_clk = {
85 .name = "mci_clk",
86 .pmc_mask = 1 << AT91SAM9260_ID_MCI,
87 .type = CLK_TYPE_PERIPHERAL,
88};
89static struct clk udc_clk = {
90 .name = "udc_clk",
91 .pmc_mask = 1 << AT91SAM9260_ID_UDP,
92 .type = CLK_TYPE_PERIPHERAL,
93};
94static struct clk twi_clk = {
95 .name = "twi_clk",
96 .pmc_mask = 1 << AT91SAM9260_ID_TWI,
97 .type = CLK_TYPE_PERIPHERAL,
98};
99static struct clk spi0_clk = {
100 .name = "spi0_clk",
101 .pmc_mask = 1 << AT91SAM9260_ID_SPI0,
102 .type = CLK_TYPE_PERIPHERAL,
103};
104static struct clk spi1_clk = {
105 .name = "spi1_clk",
106 .pmc_mask = 1 << AT91SAM9260_ID_SPI1,
107 .type = CLK_TYPE_PERIPHERAL,
108};
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AV
109static struct clk ssc_clk = {
110 .name = "ssc_clk",
111 .pmc_mask = 1 << AT91SAM9260_ID_SSC,
112 .type = CLK_TYPE_PERIPHERAL,
113};
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114static struct clk tc0_clk = {
115 .name = "tc0_clk",
116 .pmc_mask = 1 << AT91SAM9260_ID_TC0,
117 .type = CLK_TYPE_PERIPHERAL,
118};
119static struct clk tc1_clk = {
120 .name = "tc1_clk",
121 .pmc_mask = 1 << AT91SAM9260_ID_TC1,
122 .type = CLK_TYPE_PERIPHERAL,
123};
124static struct clk tc2_clk = {
125 .name = "tc2_clk",
126 .pmc_mask = 1 << AT91SAM9260_ID_TC2,
127 .type = CLK_TYPE_PERIPHERAL,
128};
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129static struct clk ohci_clk = {
130 .name = "ohci_clk",
131 .pmc_mask = 1 << AT91SAM9260_ID_UHP,
132 .type = CLK_TYPE_PERIPHERAL,
133};
69b2e99c 134static struct clk macb_clk = {
865d605e 135 .name = "pclk",
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136 .pmc_mask = 1 << AT91SAM9260_ID_EMAC,
137 .type = CLK_TYPE_PERIPHERAL,
138};
139static struct clk isi_clk = {
140 .name = "isi_clk",
141 .pmc_mask = 1 << AT91SAM9260_ID_ISI,
142 .type = CLK_TYPE_PERIPHERAL,
143};
144static struct clk usart3_clk = {
145 .name = "usart3_clk",
146 .pmc_mask = 1 << AT91SAM9260_ID_US3,
147 .type = CLK_TYPE_PERIPHERAL,
148};
149static struct clk usart4_clk = {
150 .name = "usart4_clk",
151 .pmc_mask = 1 << AT91SAM9260_ID_US4,
152 .type = CLK_TYPE_PERIPHERAL,
153};
154static struct clk usart5_clk = {
155 .name = "usart5_clk",
156 .pmc_mask = 1 << AT91SAM9260_ID_US5,
157 .type = CLK_TYPE_PERIPHERAL,
158};
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159static struct clk tc3_clk = {
160 .name = "tc3_clk",
161 .pmc_mask = 1 << AT91SAM9260_ID_TC3,
162 .type = CLK_TYPE_PERIPHERAL,
163};
164static struct clk tc4_clk = {
165 .name = "tc4_clk",
166 .pmc_mask = 1 << AT91SAM9260_ID_TC4,
167 .type = CLK_TYPE_PERIPHERAL,
168};
169static struct clk tc5_clk = {
170 .name = "tc5_clk",
171 .pmc_mask = 1 << AT91SAM9260_ID_TC5,
172 .type = CLK_TYPE_PERIPHERAL,
173};
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174
175static struct clk *periph_clocks[] __initdata = {
176 &pioA_clk,
177 &pioB_clk,
178 &pioC_clk,
179 &adc_clk,
67b5d7b3 180 &adc_op_clk,
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181 &usart0_clk,
182 &usart1_clk,
183 &usart2_clk,
184 &mmc_clk,
185 &udc_clk,
186 &twi_clk,
187 &spi0_clk,
188 &spi1_clk,
e8788bab 189 &ssc_clk,
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190 &tc0_clk,
191 &tc1_clk,
192 &tc2_clk,
62c1660d 193 &ohci_clk,
69b2e99c 194 &macb_clk,
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195 &isi_clk,
196 &usart3_clk,
197 &usart4_clk,
198 &usart5_clk,
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199 &tc3_clk,
200 &tc4_clk,
201 &tc5_clk,
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202 // irq0 .. irq2
203};
204
bd602995 205static struct clk_lookup periph_clocks_lookups[] = {
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206 /* One additional fake clock for macb_hclk */
207 CLKDEV_CON_ID("hclk", &macb_clk),
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208 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
209 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
210 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
211 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
212 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
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213 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),
214 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
215 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
636036d2 216 CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc_clk),
099343c6 217 CLKDEV_CON_DEV_ID("pclk", "fffbc000.ssc", &ssc_clk),
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218 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
219 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi_clk),
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220 /* more usart lookup table for DT entries */
221 CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),
222 CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk),
223 CLKDEV_CON_DEV_ID("usart", "fffb4000.serial", &usart1_clk),
224 CLKDEV_CON_DEV_ID("usart", "fffb8000.serial", &usart2_clk),
225 CLKDEV_CON_DEV_ID("usart", "fffd0000.serial", &usart3_clk),
226 CLKDEV_CON_DEV_ID("usart", "fffd4000.serial", &usart4_clk),
227 CLKDEV_CON_DEV_ID("usart", "fffd8000.serial", &usart5_clk),
f7d19b90 228 CLKDEV_CON_DEV_ID(NULL, "fffac000.i2c", &twi_clk),
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229 /* more tc lookup table for DT entries */
230 CLKDEV_CON_DEV_ID("t0_clk", "fffa0000.timer", &tc0_clk),
231 CLKDEV_CON_DEV_ID("t1_clk", "fffa0000.timer", &tc1_clk),
232 CLKDEV_CON_DEV_ID("t2_clk", "fffa0000.timer", &tc2_clk),
233 CLKDEV_CON_DEV_ID("t0_clk", "fffdc000.timer", &tc3_clk),
234 CLKDEV_CON_DEV_ID("t1_clk", "fffdc000.timer", &tc4_clk),
235 CLKDEV_CON_DEV_ID("t2_clk", "fffdc000.timer", &tc5_clk),
6a062459 236 CLKDEV_CON_DEV_ID("hclk", "500000.ohci", &ohci_clk),
23e3b24f 237 CLKDEV_CON_DEV_ID("mci_clk", "fffa8000.mmc", &mmc_clk),
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238 CLKDEV_CON_DEV_ID("spi_clk", "fffc8000.spi", &spi0_clk),
239 CLKDEV_CON_DEV_ID("spi_clk", "fffcc000.spi", &spi1_clk),
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240 /* fake hclk clock */
241 CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
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242 CLKDEV_CON_ID("pioA", &pioA_clk),
243 CLKDEV_CON_ID("pioB", &pioB_clk),
244 CLKDEV_CON_ID("pioC", &pioC_clk),
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245 CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk),
246 CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk),
247 CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_clk),
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248};
249
250static struct clk_lookup usart_clocks_lookups[] = {
251 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
252 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
253 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
254 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
255 CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
256 CLKDEV_CON_DEV_ID("usart", "atmel_usart.5", &usart4_clk),
257 CLKDEV_CON_DEV_ID("usart", "atmel_usart.6", &usart5_clk),
258};
259
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260/*
261 * The two programmable clocks.
262 * You must configure pin multiplexing to bring these signals out.
263 */
264static struct clk pck0 = {
265 .name = "pck0",
266 .pmc_mask = AT91_PMC_PCK0,
267 .type = CLK_TYPE_PROGRAMMABLE,
268 .id = 0,
269};
270static struct clk pck1 = {
271 .name = "pck1",
272 .pmc_mask = AT91_PMC_PCK1,
273 .type = CLK_TYPE_PROGRAMMABLE,
274 .id = 1,
275};
276
277static void __init at91sam9260_register_clocks(void)
278{
279 int i;
280
281 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
282 clk_register(periph_clocks[i]);
283
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284 clkdev_add_table(periph_clocks_lookups,
285 ARRAY_SIZE(periph_clocks_lookups));
286 clkdev_add_table(usart_clocks_lookups,
287 ARRAY_SIZE(usart_clocks_lookups));
288
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289 clk_register(&pck0);
290 clk_register(&pck1);
291}
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292#else
293#define at91sam9260_register_clocks NULL
294#endif
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295
296/* --------------------------------------------------------------------
297 * GPIO
298 * -------------------------------------------------------------------- */
299
1a2d9156 300static struct at91_gpio_bank at91sam9260_gpio[] __initdata = {
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301 {
302 .id = AT91SAM9260_ID_PIOA,
80e91cb8 303 .regbase = AT91SAM9260_BASE_PIOA,
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304 }, {
305 .id = AT91SAM9260_ID_PIOB,
80e91cb8 306 .regbase = AT91SAM9260_BASE_PIOB,
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307 }, {
308 .id = AT91SAM9260_ID_PIOC,
80e91cb8 309 .regbase = AT91SAM9260_BASE_PIOC,
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310 }
311};
312
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313/* --------------------------------------------------------------------
314 * AT91SAM9260 processor initialization
315 * -------------------------------------------------------------------- */
316
1b021a3b 317static void __init at91sam9xe_map_io(void)
f7eee89b 318{
8c3583b6 319 unsigned long sram_size;
f7eee89b 320
8c3583b6 321 switch (at91_soc_initdata.cidr & AT91_CIDR_SRAMSIZ) {
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AV
322 case AT91_CIDR_SRAMSIZ_32K:
323 sram_size = 2 * SZ_16K;
324 break;
325 case AT91_CIDR_SRAMSIZ_16K:
326 default:
327 sram_size = SZ_16K;
328 }
329
f0051d82 330 at91_init_sram(0, AT91SAM9XE_SRAM_BASE, sram_size);
f7eee89b
AV
331}
332
21d08b9d 333static void __init at91sam9260_map_io(void)
62c1660d 334{
c9b1e3ff 335 if (cpu_is_at91sam9xe())
1b021a3b 336 at91sam9xe_map_io();
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337 else if (cpu_is_at91sam9g20())
338 at91_init_sram(0, AT91SAM9G20_SRAM_BASE, AT91SAM9G20_SRAM_SIZE);
339 else
340 at91_init_sram(0, AT91SAM9260_SRAM_BASE, AT91SAM9260_SRAM_SIZE);
1b021a3b 341}
f7eee89b 342
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343static void __init at91sam9260_ioremap_registers(void)
344{
f363c407 345 at91_ioremap_ramc(0, AT91SAM9260_BASE_SDRAMC, 512);
4ab0c599 346 at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT);
faee0cc3 347 at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
4342d647 348 at91_ioremap_matrix(AT91SAM9260_BASE_MATRIX);
6b625891 349 at91_pm_set_standby(at91sam9_sdram_standby);
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350}
351
46539374 352static void __init at91sam9260_initialize(void)
1b021a3b 353{
0d781716 354 arm_pm_idle = at91sam9_idle;
62c1660d 355
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356 at91_sysirq_mask_rtt(AT91SAM9260_BASE_RTT);
357
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358 /* Register GPIO subsystem */
359 at91_gpio_init(at91sam9260_gpio, 3);
360}
361
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362static struct resource rstc_resources[] = {
363 [0] = {
364 .start = AT91SAM9260_BASE_RSTC,
365 .end = AT91SAM9260_BASE_RSTC + SZ_16 - 1,
366 .flags = IORESOURCE_MEM,
367 },
368 [1] = {
369 .start = AT91SAM9260_BASE_SDRAMC,
370 .end = AT91SAM9260_BASE_SDRAMC + SZ_512 - 1,
371 .flags = IORESOURCE_MEM,
372 },
373};
374
375static struct platform_device rstc_device = {
376 .name = "at91-sam9260-reset",
377 .resource = rstc_resources,
378 .num_resources = ARRAY_SIZE(rstc_resources),
379};
380
75ddf376
MR
381static struct resource shdwc_resources[] = {
382 [0] = {
383 .start = AT91SAM9260_BASE_SHDWC,
384 .end = AT91SAM9260_BASE_SHDWC + SZ_16 - 1,
385 .flags = IORESOURCE_MEM,
386 },
387};
388
389static struct platform_device shdwc_device = {
390 .name = "at91-poweroff",
391 .resource = shdwc_resources,
392 .num_resources = ARRAY_SIZE(shdwc_resources),
393};
394
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395static void __init at91sam9260_register_devices(void)
396{
397 platform_device_register(&rstc_device);
75ddf376 398 platform_device_register(&shdwc_device);
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399}
400
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401/* --------------------------------------------------------------------
402 * Interrupt initialization
403 * -------------------------------------------------------------------- */
404
405/*
406 * The default interrupt priority levels (0 = lowest, 7 = highest).
407 */
408static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = {
409 7, /* Advanced Interrupt Controller */
410 7, /* System Peripherals */
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AV
411 1, /* Parallel IO Controller A */
412 1, /* Parallel IO Controller B */
413 1, /* Parallel IO Controller C */
62c1660d 414 0, /* Analog-to-Digital Converter */
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AV
415 5, /* USART 0 */
416 5, /* USART 1 */
417 5, /* USART 2 */
62c1660d 418 0, /* Multimedia Card Interface */
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AV
419 2, /* USB Device Port */
420 6, /* Two-Wire Interface */
421 5, /* Serial Peripheral Interface 0 */
422 5, /* Serial Peripheral Interface 1 */
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423 5, /* Serial Synchronous Controller */
424 0,
425 0,
426 0, /* Timer Counter 0 */
427 0, /* Timer Counter 1 */
428 0, /* Timer Counter 2 */
7cbed2b5 429 2, /* USB Host port */
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430 3, /* Ethernet */
431 0, /* Image Sensor Interface */
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432 5, /* USART 3 */
433 5, /* USART 4 */
434 5, /* USART 5 */
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435 0, /* Timer Counter 3 */
436 0, /* Timer Counter 4 */
437 0, /* Timer Counter 5 */
438 0, /* Advanced Interrupt Controller */
439 0, /* Advanced Interrupt Controller */
440 0, /* Advanced Interrupt Controller */
441};
442
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443static void __init at91sam9260_init_time(void)
444{
445 at91sam926x_pit_init();
446}
447
84ddb087 448AT91_SOC_START(at91sam9260)
21d08b9d 449 .map_io = at91sam9260_map_io,
92100c12 450 .default_irq_priority = at91sam9260_default_irq_priority,
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451 .extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
452 | (1 << AT91SAM9260_ID_IRQ2),
cfa5a1fe 453 .ioremap_registers = at91sam9260_ioremap_registers,
51ddec76 454 .register_clocks = at91sam9260_register_clocks,
d8dfa2d4 455 .register_devices = at91sam9260_register_devices,
21d08b9d 456 .init = at91sam9260_initialize,
0f391f18 457 .init_time = at91sam9260_init_time,
8d39e0fd 458AT91_SOC_END
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