ARM: restart: remove s3c24xx restart handler
[deliverable/linux.git] / arch / arm / mach-at91 / at91rm9200.c
CommitLineData
73a59c1c 1/*
9d041268 2 * arch/arm/mach-at91/at91rm9200.c
73a59c1c
SP
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
SP
13#include <linux/module.h>
14
80b02c17 15#include <asm/irq.h>
73a59c1c
SP
16#include <asm/mach/arch.h>
17#include <asm/mach/map.h>
a09e64fb
RK
18#include <mach/at91rm9200.h>
19#include <mach/at91_pmc.h>
20#include <mach/at91_st.h>
e57556e3 21#include <mach/cpu.h>
73a59c1c 22
21d08b9d 23#include "soc.h"
10e8e1fb 24#include "generic.h"
2eeaaa21 25#include "clock.h"
73a59c1c
SP
26
27static struct map_desc at91rm9200_io_desc[] __initdata = {
28 {
73a59c1c 29 .virtual = AT91_VA_BASE_EMAC,
72729910 30 .pfn = __phys_to_pfn(AT91RM9200_BASE_EMAC),
73a59c1c
SP
31 .length = SZ_16K,
32 .type = MT_DEVICE,
73a59c1c
SP
33 },
34};
35
2eeaaa21
AV
36/* --------------------------------------------------------------------
37 * Clocks
38 * -------------------------------------------------------------------- */
39
40/*
41 * The peripheral clocks.
42 */
43static struct clk udc_clk = {
44 .name = "udc_clk",
45 .pmc_mask = 1 << AT91RM9200_ID_UDP,
46 .type = CLK_TYPE_PERIPHERAL,
47};
48static struct clk ohci_clk = {
49 .name = "ohci_clk",
50 .pmc_mask = 1 << AT91RM9200_ID_UHP,
51 .type = CLK_TYPE_PERIPHERAL,
52};
53static struct clk ether_clk = {
54 .name = "ether_clk",
55 .pmc_mask = 1 << AT91RM9200_ID_EMAC,
56 .type = CLK_TYPE_PERIPHERAL,
57};
58static struct clk mmc_clk = {
59 .name = "mci_clk",
60 .pmc_mask = 1 << AT91RM9200_ID_MCI,
61 .type = CLK_TYPE_PERIPHERAL,
62};
63static struct clk twi_clk = {
64 .name = "twi_clk",
65 .pmc_mask = 1 << AT91RM9200_ID_TWI,
66 .type = CLK_TYPE_PERIPHERAL,
67};
68static struct clk usart0_clk = {
69 .name = "usart0_clk",
70 .pmc_mask = 1 << AT91RM9200_ID_US0,
71 .type = CLK_TYPE_PERIPHERAL,
72};
73static struct clk usart1_clk = {
74 .name = "usart1_clk",
75 .pmc_mask = 1 << AT91RM9200_ID_US1,
76 .type = CLK_TYPE_PERIPHERAL,
77};
78static struct clk usart2_clk = {
79 .name = "usart2_clk",
80 .pmc_mask = 1 << AT91RM9200_ID_US2,
81 .type = CLK_TYPE_PERIPHERAL,
82};
83static struct clk usart3_clk = {
84 .name = "usart3_clk",
85 .pmc_mask = 1 << AT91RM9200_ID_US3,
86 .type = CLK_TYPE_PERIPHERAL,
87};
88static struct clk spi_clk = {
89 .name = "spi_clk",
90 .pmc_mask = 1 << AT91RM9200_ID_SPI,
91 .type = CLK_TYPE_PERIPHERAL,
92};
93static struct clk pioA_clk = {
94 .name = "pioA_clk",
95 .pmc_mask = 1 << AT91RM9200_ID_PIOA,
96 .type = CLK_TYPE_PERIPHERAL,
97};
98static struct clk pioB_clk = {
99 .name = "pioB_clk",
100 .pmc_mask = 1 << AT91RM9200_ID_PIOB,
101 .type = CLK_TYPE_PERIPHERAL,
102};
103static struct clk pioC_clk = {
104 .name = "pioC_clk",
105 .pmc_mask = 1 << AT91RM9200_ID_PIOC,
106 .type = CLK_TYPE_PERIPHERAL,
107};
108static struct clk pioD_clk = {
109 .name = "pioD_clk",
110 .pmc_mask = 1 << AT91RM9200_ID_PIOD,
111 .type = CLK_TYPE_PERIPHERAL,
112};
e8788bab
AV
113static struct clk ssc0_clk = {
114 .name = "ssc0_clk",
115 .pmc_mask = 1 << AT91RM9200_ID_SSC0,
116 .type = CLK_TYPE_PERIPHERAL,
117};
118static struct clk ssc1_clk = {
119 .name = "ssc1_clk",
120 .pmc_mask = 1 << AT91RM9200_ID_SSC1,
121 .type = CLK_TYPE_PERIPHERAL,
122};
123static struct clk ssc2_clk = {
124 .name = "ssc2_clk",
125 .pmc_mask = 1 << AT91RM9200_ID_SSC2,
126 .type = CLK_TYPE_PERIPHERAL,
127};
c177a1e7
AV
128static struct clk tc0_clk = {
129 .name = "tc0_clk",
130 .pmc_mask = 1 << AT91RM9200_ID_TC0,
131 .type = CLK_TYPE_PERIPHERAL,
132};
133static struct clk tc1_clk = {
134 .name = "tc1_clk",
135 .pmc_mask = 1 << AT91RM9200_ID_TC1,
136 .type = CLK_TYPE_PERIPHERAL,
137};
138static struct clk tc2_clk = {
139 .name = "tc2_clk",
140 .pmc_mask = 1 << AT91RM9200_ID_TC2,
141 .type = CLK_TYPE_PERIPHERAL,
142};
143static struct clk tc3_clk = {
144 .name = "tc3_clk",
145 .pmc_mask = 1 << AT91RM9200_ID_TC3,
146 .type = CLK_TYPE_PERIPHERAL,
147};
148static struct clk tc4_clk = {
149 .name = "tc4_clk",
150 .pmc_mask = 1 << AT91RM9200_ID_TC4,
151 .type = CLK_TYPE_PERIPHERAL,
152};
153static struct clk tc5_clk = {
154 .name = "tc5_clk",
155 .pmc_mask = 1 << AT91RM9200_ID_TC5,
156 .type = CLK_TYPE_PERIPHERAL,
157};
2eeaaa21
AV
158
159static struct clk *periph_clocks[] __initdata = {
160 &pioA_clk,
161 &pioB_clk,
162 &pioC_clk,
163 &pioD_clk,
164 &usart0_clk,
165 &usart1_clk,
166 &usart2_clk,
167 &usart3_clk,
168 &mmc_clk,
169 &udc_clk,
170 &twi_clk,
171 &spi_clk,
e8788bab
AV
172 &ssc0_clk,
173 &ssc1_clk,
174 &ssc2_clk,
c177a1e7
AV
175 &tc0_clk,
176 &tc1_clk,
177 &tc2_clk,
178 &tc3_clk,
179 &tc4_clk,
180 &tc5_clk,
2eeaaa21
AV
181 &ohci_clk,
182 &ether_clk,
183 // irq0 .. irq6
184};
185
bd602995
JCPV
186static struct clk_lookup periph_clocks_lookups[] = {
187 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
188 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
189 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
190 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),
191 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
192 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
c5efefac
JE
193 CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
194 CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
195 CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
0af4316b
JCPV
196 /* fake hclk clock */
197 CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
bd602995
JCPV
198};
199
200static struct clk_lookup usart_clocks_lookups[] = {
201 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
202 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
203 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
204 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
205 CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
206};
207
2eeaaa21
AV
208/*
209 * The four programmable clocks.
210 * You must configure pin multiplexing to bring these signals out.
211 */
212static struct clk pck0 = {
213 .name = "pck0",
214 .pmc_mask = AT91_PMC_PCK0,
215 .type = CLK_TYPE_PROGRAMMABLE,
216 .id = 0,
217};
218static struct clk pck1 = {
219 .name = "pck1",
220 .pmc_mask = AT91_PMC_PCK1,
221 .type = CLK_TYPE_PROGRAMMABLE,
222 .id = 1,
223};
224static struct clk pck2 = {
225 .name = "pck2",
226 .pmc_mask = AT91_PMC_PCK2,
227 .type = CLK_TYPE_PROGRAMMABLE,
228 .id = 2,
229};
230static struct clk pck3 = {
231 .name = "pck3",
232 .pmc_mask = AT91_PMC_PCK3,
233 .type = CLK_TYPE_PROGRAMMABLE,
234 .id = 3,
235};
236
237static void __init at91rm9200_register_clocks(void)
73a59c1c 238{
2eeaaa21
AV
239 int i;
240
241 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
242 clk_register(periph_clocks[i]);
243
bd602995
JCPV
244 clkdev_add_table(periph_clocks_lookups,
245 ARRAY_SIZE(periph_clocks_lookups));
246 clkdev_add_table(usart_clocks_lookups,
247 ARRAY_SIZE(usart_clocks_lookups));
248
2eeaaa21
AV
249 clk_register(&pck0);
250 clk_register(&pck1);
251 clk_register(&pck2);
252 clk_register(&pck3);
253}
254
bd602995
JCPV
255static struct clk_lookup console_clock_lookup;
256
257void __init at91rm9200_set_console_clock(int id)
258{
259 if (id >= ARRAY_SIZE(usart_clocks_lookups))
260 return;
261
262 console_clock_lookup.con_id = "usart";
263 console_clock_lookup.clk = usart_clocks_lookups[id].clk;
264 clkdev_add(&console_clock_lookup);
265}
266
f2173834
AV
267/* --------------------------------------------------------------------
268 * GPIO
269 * -------------------------------------------------------------------- */
270
271static struct at91_gpio_bank at91rm9200_gpio[] = {
272 {
273 .id = AT91RM9200_ID_PIOA,
274 .offset = AT91_PIOA,
275 .clock = &pioA_clk,
276 }, {
277 .id = AT91RM9200_ID_PIOB,
278 .offset = AT91_PIOB,
279 .clock = &pioB_clk,
280 }, {
281 .id = AT91RM9200_ID_PIOC,
282 .offset = AT91_PIOC,
283 .clock = &pioC_clk,
284 }, {
285 .id = AT91RM9200_ID_PIOD,
286 .offset = AT91_PIOD,
287 .clock = &pioD_clk,
288 }
289};
2eeaaa21 290
1f4fd0a0
AV
291static void at91rm9200_reset(void)
292{
293 /*
294 * Perform a hardware reset with the use of the Watchdog timer.
295 */
296 at91_sys_write(AT91_ST_WDMR, AT91_ST_RSTEN | AT91_ST_EXTEN | 1);
297 at91_sys_write(AT91_ST_CR, AT91_ST_WDRST);
298}
299
2eeaaa21
AV
300/* --------------------------------------------------------------------
301 * AT91RM9200 processor initialization
302 * -------------------------------------------------------------------- */
21d08b9d 303static void __init at91rm9200_map_io(void)
2eeaaa21
AV
304{
305 /* Map peripherals */
f0051d82 306 at91_init_sram(0, AT91RM9200_SRAM_BASE, AT91RM9200_SRAM_SIZE);
73a59c1c 307 iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc));
1b021a3b 308}
2eeaaa21 309
46539374 310static void __init at91rm9200_initialize(void)
1b021a3b 311{
1f4fd0a0
AV
312 at91_arch_reset = at91rm9200_reset;
313 at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1)
314 | (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3)
315 | (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5)
316 | (1 << AT91RM9200_ID_IRQ6);
317
f2173834 318 /* Initialize GPIO subsystem */
e57556e3
JCPV
319 at91_gpio_init(at91rm9200_gpio,
320 cpu_is_at91rm9200_bga() ? AT91RM9200_BGA : AT91RM9200_PQFP);
73a59c1c
SP
321}
322
f2173834
AV
323
324/* --------------------------------------------------------------------
325 * Interrupt initialization
326 * -------------------------------------------------------------------- */
327
ba854e18
AV
328/*
329 * The default interrupt priority levels (0 = lowest, 7 = highest).
330 */
331static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
332 7, /* Advanced Interrupt Controller (FIQ) */
333 7, /* System Peripherals */
7cbed2b5
AV
334 1, /* Parallel IO Controller A */
335 1, /* Parallel IO Controller B */
336 1, /* Parallel IO Controller C */
337 1, /* Parallel IO Controller D */
338 5, /* USART 0 */
339 5, /* USART 1 */
340 5, /* USART 2 */
341 5, /* USART 3 */
ba854e18 342 0, /* Multimedia Card Interface */
7cbed2b5
AV
343 2, /* USB Device Port */
344 6, /* Two-Wire Interface */
345 5, /* Serial Peripheral Interface */
346 4, /* Serial Synchronous Controller 0 */
347 4, /* Serial Synchronous Controller 1 */
348 4, /* Serial Synchronous Controller 2 */
ba854e18
AV
349 0, /* Timer Counter 0 */
350 0, /* Timer Counter 1 */
351 0, /* Timer Counter 2 */
352 0, /* Timer Counter 3 */
353 0, /* Timer Counter 4 */
354 0, /* Timer Counter 5 */
7cbed2b5 355 2, /* USB Host port */
ba854e18
AV
356 3, /* Ethernet MAC */
357 0, /* Advanced Interrupt Controller (IRQ0) */
358 0, /* Advanced Interrupt Controller (IRQ1) */
359 0, /* Advanced Interrupt Controller (IRQ2) */
360 0, /* Advanced Interrupt Controller (IRQ3) */
361 0, /* Advanced Interrupt Controller (IRQ4) */
362 0, /* Advanced Interrupt Controller (IRQ5) */
363 0 /* Advanced Interrupt Controller (IRQ6) */
364};
365
8c3583b6 366struct at91_init_soc __initdata at91rm9200_soc = {
21d08b9d 367 .map_io = at91rm9200_map_io,
92100c12 368 .default_irq_priority = at91rm9200_default_irq_priority,
51ddec76 369 .register_clocks = at91rm9200_register_clocks,
21d08b9d
JCPV
370 .init = at91rm9200_initialize,
371};
This page took 0.518235 seconds and 5 git commands to generate.