ARM: at91: atmel-ssc: add platform device id table
[deliverable/linux.git] / arch / arm / mach-at91 / at91rm9200.c
CommitLineData
73a59c1c 1/*
9d041268 2 * arch/arm/mach-at91/at91rm9200.c
73a59c1c
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3 *
4 * Copyright (C) 2005 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
73a59c1c
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13#include <linux/module.h>
14
80b02c17 15#include <asm/irq.h>
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16#include <asm/mach/arch.h>
17#include <asm/mach/map.h>
9f97da78 18#include <asm/system_misc.h>
a09e64fb 19#include <mach/at91rm9200.h>
8fe82a55 20#include <mach/at91_aic.h>
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21#include <mach/at91_pmc.h>
22#include <mach/at91_st.h>
e57556e3 23#include <mach/cpu.h>
73a59c1c 24
21d08b9d 25#include "soc.h"
10e8e1fb 26#include "generic.h"
2eeaaa21 27#include "clock.h"
faee0cc3 28#include "sam9_smc.h"
73a59c1c 29
2eeaaa21
AV
30/* --------------------------------------------------------------------
31 * Clocks
32 * -------------------------------------------------------------------- */
33
34/*
35 * The peripheral clocks.
36 */
37static struct clk udc_clk = {
38 .name = "udc_clk",
39 .pmc_mask = 1 << AT91RM9200_ID_UDP,
40 .type = CLK_TYPE_PERIPHERAL,
41};
42static struct clk ohci_clk = {
43 .name = "ohci_clk",
44 .pmc_mask = 1 << AT91RM9200_ID_UHP,
45 .type = CLK_TYPE_PERIPHERAL,
46};
47static struct clk ether_clk = {
48 .name = "ether_clk",
49 .pmc_mask = 1 << AT91RM9200_ID_EMAC,
50 .type = CLK_TYPE_PERIPHERAL,
51};
52static struct clk mmc_clk = {
53 .name = "mci_clk",
54 .pmc_mask = 1 << AT91RM9200_ID_MCI,
55 .type = CLK_TYPE_PERIPHERAL,
56};
57static struct clk twi_clk = {
58 .name = "twi_clk",
59 .pmc_mask = 1 << AT91RM9200_ID_TWI,
60 .type = CLK_TYPE_PERIPHERAL,
61};
62static struct clk usart0_clk = {
63 .name = "usart0_clk",
64 .pmc_mask = 1 << AT91RM9200_ID_US0,
65 .type = CLK_TYPE_PERIPHERAL,
66};
67static struct clk usart1_clk = {
68 .name = "usart1_clk",
69 .pmc_mask = 1 << AT91RM9200_ID_US1,
70 .type = CLK_TYPE_PERIPHERAL,
71};
72static struct clk usart2_clk = {
73 .name = "usart2_clk",
74 .pmc_mask = 1 << AT91RM9200_ID_US2,
75 .type = CLK_TYPE_PERIPHERAL,
76};
77static struct clk usart3_clk = {
78 .name = "usart3_clk",
79 .pmc_mask = 1 << AT91RM9200_ID_US3,
80 .type = CLK_TYPE_PERIPHERAL,
81};
82static struct clk spi_clk = {
83 .name = "spi_clk",
84 .pmc_mask = 1 << AT91RM9200_ID_SPI,
85 .type = CLK_TYPE_PERIPHERAL,
86};
87static struct clk pioA_clk = {
88 .name = "pioA_clk",
89 .pmc_mask = 1 << AT91RM9200_ID_PIOA,
90 .type = CLK_TYPE_PERIPHERAL,
91};
92static struct clk pioB_clk = {
93 .name = "pioB_clk",
94 .pmc_mask = 1 << AT91RM9200_ID_PIOB,
95 .type = CLK_TYPE_PERIPHERAL,
96};
97static struct clk pioC_clk = {
98 .name = "pioC_clk",
99 .pmc_mask = 1 << AT91RM9200_ID_PIOC,
100 .type = CLK_TYPE_PERIPHERAL,
101};
102static struct clk pioD_clk = {
103 .name = "pioD_clk",
104 .pmc_mask = 1 << AT91RM9200_ID_PIOD,
105 .type = CLK_TYPE_PERIPHERAL,
106};
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107static struct clk ssc0_clk = {
108 .name = "ssc0_clk",
109 .pmc_mask = 1 << AT91RM9200_ID_SSC0,
110 .type = CLK_TYPE_PERIPHERAL,
111};
112static struct clk ssc1_clk = {
113 .name = "ssc1_clk",
114 .pmc_mask = 1 << AT91RM9200_ID_SSC1,
115 .type = CLK_TYPE_PERIPHERAL,
116};
117static struct clk ssc2_clk = {
118 .name = "ssc2_clk",
119 .pmc_mask = 1 << AT91RM9200_ID_SSC2,
120 .type = CLK_TYPE_PERIPHERAL,
121};
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122static struct clk tc0_clk = {
123 .name = "tc0_clk",
124 .pmc_mask = 1 << AT91RM9200_ID_TC0,
125 .type = CLK_TYPE_PERIPHERAL,
126};
127static struct clk tc1_clk = {
128 .name = "tc1_clk",
129 .pmc_mask = 1 << AT91RM9200_ID_TC1,
130 .type = CLK_TYPE_PERIPHERAL,
131};
132static struct clk tc2_clk = {
133 .name = "tc2_clk",
134 .pmc_mask = 1 << AT91RM9200_ID_TC2,
135 .type = CLK_TYPE_PERIPHERAL,
136};
137static struct clk tc3_clk = {
138 .name = "tc3_clk",
139 .pmc_mask = 1 << AT91RM9200_ID_TC3,
140 .type = CLK_TYPE_PERIPHERAL,
141};
142static struct clk tc4_clk = {
143 .name = "tc4_clk",
144 .pmc_mask = 1 << AT91RM9200_ID_TC4,
145 .type = CLK_TYPE_PERIPHERAL,
146};
147static struct clk tc5_clk = {
148 .name = "tc5_clk",
149 .pmc_mask = 1 << AT91RM9200_ID_TC5,
150 .type = CLK_TYPE_PERIPHERAL,
151};
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152
153static struct clk *periph_clocks[] __initdata = {
154 &pioA_clk,
155 &pioB_clk,
156 &pioC_clk,
157 &pioD_clk,
158 &usart0_clk,
159 &usart1_clk,
160 &usart2_clk,
161 &usart3_clk,
162 &mmc_clk,
163 &udc_clk,
164 &twi_clk,
165 &spi_clk,
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166 &ssc0_clk,
167 &ssc1_clk,
168 &ssc2_clk,
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169 &tc0_clk,
170 &tc1_clk,
171 &tc2_clk,
172 &tc3_clk,
173 &tc4_clk,
174 &tc5_clk,
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175 &ohci_clk,
176 &ether_clk,
177 // irq0 .. irq6
178};
179
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180static struct clk_lookup periph_clocks_lookups[] = {
181 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
182 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
183 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
184 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),
185 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
186 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
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187 CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk),
188 CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk),
189 CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.2", &ssc2_clk),
302090a6 190 CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk),
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191 /* fake hclk clock */
192 CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
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193 CLKDEV_CON_ID("pioA", &pioA_clk),
194 CLKDEV_CON_ID("pioB", &pioB_clk),
195 CLKDEV_CON_ID("pioC", &pioC_clk),
196 CLKDEV_CON_ID("pioD", &pioD_clk),
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197};
198
199static struct clk_lookup usart_clocks_lookups[] = {
200 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
201 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
202 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
203 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
204 CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
205};
206
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207/*
208 * The four programmable clocks.
209 * You must configure pin multiplexing to bring these signals out.
210 */
211static struct clk pck0 = {
212 .name = "pck0",
213 .pmc_mask = AT91_PMC_PCK0,
214 .type = CLK_TYPE_PROGRAMMABLE,
215 .id = 0,
216};
217static struct clk pck1 = {
218 .name = "pck1",
219 .pmc_mask = AT91_PMC_PCK1,
220 .type = CLK_TYPE_PROGRAMMABLE,
221 .id = 1,
222};
223static struct clk pck2 = {
224 .name = "pck2",
225 .pmc_mask = AT91_PMC_PCK2,
226 .type = CLK_TYPE_PROGRAMMABLE,
227 .id = 2,
228};
229static struct clk pck3 = {
230 .name = "pck3",
231 .pmc_mask = AT91_PMC_PCK3,
232 .type = CLK_TYPE_PROGRAMMABLE,
233 .id = 3,
234};
235
236static void __init at91rm9200_register_clocks(void)
73a59c1c 237{
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238 int i;
239
240 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
241 clk_register(periph_clocks[i]);
242
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243 clkdev_add_table(periph_clocks_lookups,
244 ARRAY_SIZE(periph_clocks_lookups));
245 clkdev_add_table(usart_clocks_lookups,
246 ARRAY_SIZE(usart_clocks_lookups));
247
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248 clk_register(&pck0);
249 clk_register(&pck1);
250 clk_register(&pck2);
251 clk_register(&pck3);
252}
253
f2173834
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254/* --------------------------------------------------------------------
255 * GPIO
256 * -------------------------------------------------------------------- */
257
1a2d9156 258static struct at91_gpio_bank at91rm9200_gpio[] __initdata = {
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259 {
260 .id = AT91RM9200_ID_PIOA,
80e91cb8 261 .regbase = AT91RM9200_BASE_PIOA,
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262 }, {
263 .id = AT91RM9200_ID_PIOB,
80e91cb8 264 .regbase = AT91RM9200_BASE_PIOB,
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265 }, {
266 .id = AT91RM9200_ID_PIOC,
80e91cb8 267 .regbase = AT91RM9200_BASE_PIOC,
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268 }, {
269 .id = AT91RM9200_ID_PIOD,
80e91cb8 270 .regbase = AT91RM9200_BASE_PIOD,
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271 }
272};
2eeaaa21 273
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274static void at91rm9200_idle(void)
275{
276 /*
277 * Disable the processor clock. The processor will be automatically
278 * re-enabled by an interrupt or by a reset.
279 */
b5514952 280 at91_pmc_write(AT91_PMC_SCDR, AT91_PMC_PCK);
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281}
282
1b2073e7 283static void at91rm9200_restart(char mode, const char *cmd)
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284{
285 /*
286 * Perform a hardware reset with the use of the Watchdog timer.
287 */
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288 at91_st_write(AT91_ST_WDMR, AT91_ST_RSTEN | AT91_ST_EXTEN | 1);
289 at91_st_write(AT91_ST_CR, AT91_ST_WDRST);
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290}
291
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292/* --------------------------------------------------------------------
293 * AT91RM9200 processor initialization
294 * -------------------------------------------------------------------- */
21d08b9d 295static void __init at91rm9200_map_io(void)
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296{
297 /* Map peripherals */
f0051d82 298 at91_init_sram(0, AT91RM9200_SRAM_BASE, AT91RM9200_SRAM_SIZE);
1b021a3b 299}
2eeaaa21 300
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301static void __init at91rm9200_ioremap_registers(void)
302{
5e9cf5e1 303 at91rm9200_ioremap_st(AT91RM9200_BASE_ST);
f363c407 304 at91_ioremap_ramc(0, AT91RM9200_BASE_MC, 256);
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305}
306
46539374 307static void __init at91rm9200_initialize(void)
1b021a3b 308{
c9dfafba 309 arm_pm_idle = at91rm9200_idle;
1b2073e7 310 arm_pm_restart = at91rm9200_restart;
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311 at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1)
312 | (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3)
313 | (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5)
314 | (1 << AT91RM9200_ID_IRQ6);
315
f2173834 316 /* Initialize GPIO subsystem */
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317 at91_gpio_init(at91rm9200_gpio,
318 cpu_is_at91rm9200_bga() ? AT91RM9200_BGA : AT91RM9200_PQFP);
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319}
320
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321
322/* --------------------------------------------------------------------
323 * Interrupt initialization
324 * -------------------------------------------------------------------- */
325
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326/*
327 * The default interrupt priority levels (0 = lowest, 7 = highest).
328 */
329static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
330 7, /* Advanced Interrupt Controller (FIQ) */
331 7, /* System Peripherals */
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AV
332 1, /* Parallel IO Controller A */
333 1, /* Parallel IO Controller B */
334 1, /* Parallel IO Controller C */
335 1, /* Parallel IO Controller D */
336 5, /* USART 0 */
337 5, /* USART 1 */
338 5, /* USART 2 */
339 5, /* USART 3 */
ba854e18 340 0, /* Multimedia Card Interface */
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341 2, /* USB Device Port */
342 6, /* Two-Wire Interface */
343 5, /* Serial Peripheral Interface */
344 4, /* Serial Synchronous Controller 0 */
345 4, /* Serial Synchronous Controller 1 */
346 4, /* Serial Synchronous Controller 2 */
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AV
347 0, /* Timer Counter 0 */
348 0, /* Timer Counter 1 */
349 0, /* Timer Counter 2 */
350 0, /* Timer Counter 3 */
351 0, /* Timer Counter 4 */
352 0, /* Timer Counter 5 */
7cbed2b5 353 2, /* USB Host port */
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AV
354 3, /* Ethernet MAC */
355 0, /* Advanced Interrupt Controller (IRQ0) */
356 0, /* Advanced Interrupt Controller (IRQ1) */
357 0, /* Advanced Interrupt Controller (IRQ2) */
358 0, /* Advanced Interrupt Controller (IRQ3) */
359 0, /* Advanced Interrupt Controller (IRQ4) */
360 0, /* Advanced Interrupt Controller (IRQ5) */
361 0 /* Advanced Interrupt Controller (IRQ6) */
362};
363
8c3583b6 364struct at91_init_soc __initdata at91rm9200_soc = {
21d08b9d 365 .map_io = at91rm9200_map_io,
92100c12 366 .default_irq_priority = at91rm9200_default_irq_priority,
cfa5a1fe 367 .ioremap_registers = at91rm9200_ioremap_registers,
51ddec76 368 .register_clocks = at91rm9200_register_clocks,
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369 .init = at91rm9200_initialize,
370};
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