Commit | Line | Data |
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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 | |
27 | static 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 | */ | |
43 | static struct clk udc_clk = { | |
44 | .name = "udc_clk", | |
45 | .pmc_mask = 1 << AT91RM9200_ID_UDP, | |
46 | .type = CLK_TYPE_PERIPHERAL, | |
47 | }; | |
48 | static struct clk ohci_clk = { | |
49 | .name = "ohci_clk", | |
50 | .pmc_mask = 1 << AT91RM9200_ID_UHP, | |
51 | .type = CLK_TYPE_PERIPHERAL, | |
52 | }; | |
53 | static struct clk ether_clk = { | |
54 | .name = "ether_clk", | |
55 | .pmc_mask = 1 << AT91RM9200_ID_EMAC, | |
56 | .type = CLK_TYPE_PERIPHERAL, | |
57 | }; | |
58 | static struct clk mmc_clk = { | |
59 | .name = "mci_clk", | |
60 | .pmc_mask = 1 << AT91RM9200_ID_MCI, | |
61 | .type = CLK_TYPE_PERIPHERAL, | |
62 | }; | |
63 | static struct clk twi_clk = { | |
64 | .name = "twi_clk", | |
65 | .pmc_mask = 1 << AT91RM9200_ID_TWI, | |
66 | .type = CLK_TYPE_PERIPHERAL, | |
67 | }; | |
68 | static struct clk usart0_clk = { | |
69 | .name = "usart0_clk", | |
70 | .pmc_mask = 1 << AT91RM9200_ID_US0, | |
71 | .type = CLK_TYPE_PERIPHERAL, | |
72 | }; | |
73 | static struct clk usart1_clk = { | |
74 | .name = "usart1_clk", | |
75 | .pmc_mask = 1 << AT91RM9200_ID_US1, | |
76 | .type = CLK_TYPE_PERIPHERAL, | |
77 | }; | |
78 | static struct clk usart2_clk = { | |
79 | .name = "usart2_clk", | |
80 | .pmc_mask = 1 << AT91RM9200_ID_US2, | |
81 | .type = CLK_TYPE_PERIPHERAL, | |
82 | }; | |
83 | static struct clk usart3_clk = { | |
84 | .name = "usart3_clk", | |
85 | .pmc_mask = 1 << AT91RM9200_ID_US3, | |
86 | .type = CLK_TYPE_PERIPHERAL, | |
87 | }; | |
88 | static struct clk spi_clk = { | |
89 | .name = "spi_clk", | |
90 | .pmc_mask = 1 << AT91RM9200_ID_SPI, | |
91 | .type = CLK_TYPE_PERIPHERAL, | |
92 | }; | |
93 | static struct clk pioA_clk = { | |
94 | .name = "pioA_clk", | |
95 | .pmc_mask = 1 << AT91RM9200_ID_PIOA, | |
96 | .type = CLK_TYPE_PERIPHERAL, | |
97 | }; | |
98 | static struct clk pioB_clk = { | |
99 | .name = "pioB_clk", | |
100 | .pmc_mask = 1 << AT91RM9200_ID_PIOB, | |
101 | .type = CLK_TYPE_PERIPHERAL, | |
102 | }; | |
103 | static struct clk pioC_clk = { | |
104 | .name = "pioC_clk", | |
105 | .pmc_mask = 1 << AT91RM9200_ID_PIOC, | |
106 | .type = CLK_TYPE_PERIPHERAL, | |
107 | }; | |
108 | static struct clk pioD_clk = { | |
109 | .name = "pioD_clk", | |
110 | .pmc_mask = 1 << AT91RM9200_ID_PIOD, | |
111 | .type = CLK_TYPE_PERIPHERAL, | |
112 | }; | |
e8788bab AV |
113 | static struct clk ssc0_clk = { |
114 | .name = "ssc0_clk", | |
115 | .pmc_mask = 1 << AT91RM9200_ID_SSC0, | |
116 | .type = CLK_TYPE_PERIPHERAL, | |
117 | }; | |
118 | static struct clk ssc1_clk = { | |
119 | .name = "ssc1_clk", | |
120 | .pmc_mask = 1 << AT91RM9200_ID_SSC1, | |
121 | .type = CLK_TYPE_PERIPHERAL, | |
122 | }; | |
123 | static struct clk ssc2_clk = { | |
124 | .name = "ssc2_clk", | |
125 | .pmc_mask = 1 << AT91RM9200_ID_SSC2, | |
126 | .type = CLK_TYPE_PERIPHERAL, | |
127 | }; | |
c177a1e7 AV |
128 | static struct clk tc0_clk = { |
129 | .name = "tc0_clk", | |
130 | .pmc_mask = 1 << AT91RM9200_ID_TC0, | |
131 | .type = CLK_TYPE_PERIPHERAL, | |
132 | }; | |
133 | static struct clk tc1_clk = { | |
134 | .name = "tc1_clk", | |
135 | .pmc_mask = 1 << AT91RM9200_ID_TC1, | |
136 | .type = CLK_TYPE_PERIPHERAL, | |
137 | }; | |
138 | static struct clk tc2_clk = { | |
139 | .name = "tc2_clk", | |
140 | .pmc_mask = 1 << AT91RM9200_ID_TC2, | |
141 | .type = CLK_TYPE_PERIPHERAL, | |
142 | }; | |
143 | static struct clk tc3_clk = { | |
144 | .name = "tc3_clk", | |
145 | .pmc_mask = 1 << AT91RM9200_ID_TC3, | |
146 | .type = CLK_TYPE_PERIPHERAL, | |
147 | }; | |
148 | static struct clk tc4_clk = { | |
149 | .name = "tc4_clk", | |
150 | .pmc_mask = 1 << AT91RM9200_ID_TC4, | |
151 | .type = CLK_TYPE_PERIPHERAL, | |
152 | }; | |
153 | static struct clk tc5_clk = { | |
154 | .name = "tc5_clk", | |
155 | .pmc_mask = 1 << AT91RM9200_ID_TC5, | |
156 | .type = CLK_TYPE_PERIPHERAL, | |
157 | }; | |
2eeaaa21 AV |
158 | |
159 | static 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 | ðer_clk, | |
183 | // irq0 .. irq6 | |
184 | }; | |
185 | ||
bd602995 JCPV |
186 | static 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 | ||
200 | static 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 | */ | |
212 | static struct clk pck0 = { | |
213 | .name = "pck0", | |
214 | .pmc_mask = AT91_PMC_PCK0, | |
215 | .type = CLK_TYPE_PROGRAMMABLE, | |
216 | .id = 0, | |
217 | }; | |
218 | static struct clk pck1 = { | |
219 | .name = "pck1", | |
220 | .pmc_mask = AT91_PMC_PCK1, | |
221 | .type = CLK_TYPE_PROGRAMMABLE, | |
222 | .id = 1, | |
223 | }; | |
224 | static struct clk pck2 = { | |
225 | .name = "pck2", | |
226 | .pmc_mask = AT91_PMC_PCK2, | |
227 | .type = CLK_TYPE_PROGRAMMABLE, | |
228 | .id = 2, | |
229 | }; | |
230 | static struct clk pck3 = { | |
231 | .name = "pck3", | |
232 | .pmc_mask = AT91_PMC_PCK3, | |
233 | .type = CLK_TYPE_PROGRAMMABLE, | |
234 | .id = 3, | |
235 | }; | |
236 | ||
237 | static 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 |
255 | static struct clk_lookup console_clock_lookup; |
256 | ||
257 | void __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 | ||
271 | static 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 |
291 | static 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 | 303 | static 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 | 310 | static 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 | */ | |
331 | static 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 | 366 | struct 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 | }; |