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b2c65616 AV |
1 | /* |
2 | * arch/arm/mach-at91/at91sam9263.c | |
3 | * | |
4 | * Copyright (C) 2007 Atmel Corporation. | |
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> | |
3ef2fb42 | 14 | #include <linux/pm.h> |
b2c65616 | 15 | |
80b02c17 | 16 | #include <asm/irq.h> |
b2c65616 AV |
17 | #include <asm/mach/arch.h> |
18 | #include <asm/mach/map.h> | |
a09e64fb RK |
19 | #include <mach/at91sam9263.h> |
20 | #include <mach/at91_pmc.h> | |
21 | #include <mach/at91_rstc.h> | |
22 | #include <mach/at91_shdwc.h> | |
b2c65616 AV |
23 | |
24 | #include "generic.h" | |
25 | #include "clock.h" | |
26 | ||
27 | static struct map_desc at91sam9263_io_desc[] __initdata = { | |
28 | { | |
29 | .virtual = AT91_VA_BASE_SYS, | |
30 | .pfn = __phys_to_pfn(AT91_BASE_SYS), | |
31 | .length = SZ_16K, | |
32 | .type = MT_DEVICE, | |
33 | }, { | |
34 | .virtual = AT91_IO_VIRT_BASE - AT91SAM9263_SRAM0_SIZE, | |
35 | .pfn = __phys_to_pfn(AT91SAM9263_SRAM0_BASE), | |
36 | .length = AT91SAM9263_SRAM0_SIZE, | |
37 | .type = MT_DEVICE, | |
38 | }, { | |
39 | .virtual = AT91_IO_VIRT_BASE - AT91SAM9263_SRAM0_SIZE - AT91SAM9263_SRAM1_SIZE, | |
40 | .pfn = __phys_to_pfn(AT91SAM9263_SRAM1_BASE), | |
41 | .length = AT91SAM9263_SRAM1_SIZE, | |
42 | .type = MT_DEVICE, | |
43 | }, | |
44 | }; | |
45 | ||
46 | /* -------------------------------------------------------------------- | |
47 | * Clocks | |
48 | * -------------------------------------------------------------------- */ | |
49 | ||
50 | /* | |
51 | * The peripheral clocks. | |
52 | */ | |
53 | static struct clk pioA_clk = { | |
54 | .name = "pioA_clk", | |
55 | .pmc_mask = 1 << AT91SAM9263_ID_PIOA, | |
56 | .type = CLK_TYPE_PERIPHERAL, | |
57 | }; | |
58 | static struct clk pioB_clk = { | |
59 | .name = "pioB_clk", | |
60 | .pmc_mask = 1 << AT91SAM9263_ID_PIOB, | |
61 | .type = CLK_TYPE_PERIPHERAL, | |
62 | }; | |
63 | static struct clk pioCDE_clk = { | |
64 | .name = "pioCDE_clk", | |
65 | .pmc_mask = 1 << AT91SAM9263_ID_PIOCDE, | |
66 | .type = CLK_TYPE_PERIPHERAL, | |
67 | }; | |
68 | static struct clk usart0_clk = { | |
69 | .name = "usart0_clk", | |
70 | .pmc_mask = 1 << AT91SAM9263_ID_US0, | |
71 | .type = CLK_TYPE_PERIPHERAL, | |
72 | }; | |
73 | static struct clk usart1_clk = { | |
74 | .name = "usart1_clk", | |
75 | .pmc_mask = 1 << AT91SAM9263_ID_US1, | |
76 | .type = CLK_TYPE_PERIPHERAL, | |
77 | }; | |
78 | static struct clk usart2_clk = { | |
79 | .name = "usart2_clk", | |
80 | .pmc_mask = 1 << AT91SAM9263_ID_US2, | |
81 | .type = CLK_TYPE_PERIPHERAL, | |
82 | }; | |
83 | static struct clk mmc0_clk = { | |
84 | .name = "mci0_clk", | |
85 | .pmc_mask = 1 << AT91SAM9263_ID_MCI0, | |
86 | .type = CLK_TYPE_PERIPHERAL, | |
87 | }; | |
88 | static struct clk mmc1_clk = { | |
89 | .name = "mci1_clk", | |
90 | .pmc_mask = 1 << AT91SAM9263_ID_MCI1, | |
91 | .type = CLK_TYPE_PERIPHERAL, | |
92 | }; | |
e8788bab AV |
93 | static struct clk can_clk = { |
94 | .name = "can_clk", | |
95 | .pmc_mask = 1 << AT91SAM9263_ID_CAN, | |
96 | .type = CLK_TYPE_PERIPHERAL, | |
97 | }; | |
b2c65616 AV |
98 | static struct clk twi_clk = { |
99 | .name = "twi_clk", | |
100 | .pmc_mask = 1 << AT91SAM9263_ID_TWI, | |
101 | .type = CLK_TYPE_PERIPHERAL, | |
102 | }; | |
103 | static struct clk spi0_clk = { | |
104 | .name = "spi0_clk", | |
105 | .pmc_mask = 1 << AT91SAM9263_ID_SPI0, | |
106 | .type = CLK_TYPE_PERIPHERAL, | |
107 | }; | |
108 | static struct clk spi1_clk = { | |
109 | .name = "spi1_clk", | |
110 | .pmc_mask = 1 << AT91SAM9263_ID_SPI1, | |
111 | .type = CLK_TYPE_PERIPHERAL, | |
112 | }; | |
e8788bab AV |
113 | static struct clk ssc0_clk = { |
114 | .name = "ssc0_clk", | |
115 | .pmc_mask = 1 << AT91SAM9263_ID_SSC0, | |
116 | .type = CLK_TYPE_PERIPHERAL, | |
117 | }; | |
118 | static struct clk ssc1_clk = { | |
119 | .name = "ssc1_clk", | |
120 | .pmc_mask = 1 << AT91SAM9263_ID_SSC1, | |
121 | .type = CLK_TYPE_PERIPHERAL, | |
122 | }; | |
123 | static struct clk ac97_clk = { | |
124 | .name = "ac97_clk", | |
125 | .pmc_mask = 1 << AT91SAM9263_ID_AC97C, | |
126 | .type = CLK_TYPE_PERIPHERAL, | |
127 | }; | |
b2c65616 AV |
128 | static struct clk tcb_clk = { |
129 | .name = "tcb_clk", | |
130 | .pmc_mask = 1 << AT91SAM9263_ID_TCB, | |
131 | .type = CLK_TYPE_PERIPHERAL, | |
132 | }; | |
bb1ad68b AV |
133 | static struct clk pwm_clk = { |
134 | .name = "pwm_clk", | |
e8788bab AV |
135 | .pmc_mask = 1 << AT91SAM9263_ID_PWMC, |
136 | .type = CLK_TYPE_PERIPHERAL, | |
137 | }; | |
69b2e99c AV |
138 | static struct clk macb_clk = { |
139 | .name = "macb_clk", | |
b2c65616 AV |
140 | .pmc_mask = 1 << AT91SAM9263_ID_EMAC, |
141 | .type = CLK_TYPE_PERIPHERAL, | |
142 | }; | |
e8788bab AV |
143 | static struct clk dma_clk = { |
144 | .name = "dma_clk", | |
145 | .pmc_mask = 1 << AT91SAM9263_ID_DMA, | |
146 | .type = CLK_TYPE_PERIPHERAL, | |
147 | }; | |
148 | static struct clk twodge_clk = { | |
149 | .name = "2dge_clk", | |
150 | .pmc_mask = 1 << AT91SAM9263_ID_2DGE, | |
151 | .type = CLK_TYPE_PERIPHERAL, | |
152 | }; | |
b2c65616 AV |
153 | static struct clk udc_clk = { |
154 | .name = "udc_clk", | |
155 | .pmc_mask = 1 << AT91SAM9263_ID_UDP, | |
156 | .type = CLK_TYPE_PERIPHERAL, | |
157 | }; | |
158 | static struct clk isi_clk = { | |
159 | .name = "isi_clk", | |
160 | .pmc_mask = 1 << AT91SAM9263_ID_ISI, | |
161 | .type = CLK_TYPE_PERIPHERAL, | |
162 | }; | |
163 | static struct clk lcdc_clk = { | |
164 | .name = "lcdc_clk", | |
7f6e2d99 | 165 | .pmc_mask = 1 << AT91SAM9263_ID_LCDC, |
b2c65616 AV |
166 | .type = CLK_TYPE_PERIPHERAL, |
167 | }; | |
168 | static struct clk ohci_clk = { | |
169 | .name = "ohci_clk", | |
170 | .pmc_mask = 1 << AT91SAM9263_ID_UHP, | |
171 | .type = CLK_TYPE_PERIPHERAL, | |
172 | }; | |
173 | ||
174 | static struct clk *periph_clocks[] __initdata = { | |
175 | &pioA_clk, | |
176 | &pioB_clk, | |
177 | &pioCDE_clk, | |
178 | &usart0_clk, | |
179 | &usart1_clk, | |
180 | &usart2_clk, | |
181 | &mmc0_clk, | |
182 | &mmc1_clk, | |
e8788bab | 183 | &can_clk, |
b2c65616 AV |
184 | &twi_clk, |
185 | &spi0_clk, | |
186 | &spi1_clk, | |
e8788bab AV |
187 | &ssc0_clk, |
188 | &ssc1_clk, | |
189 | &ac97_clk, | |
b2c65616 | 190 | &tcb_clk, |
bb1ad68b | 191 | &pwm_clk, |
69b2e99c | 192 | &macb_clk, |
e8788bab | 193 | &twodge_clk, |
b2c65616 AV |
194 | &udc_clk, |
195 | &isi_clk, | |
196 | &lcdc_clk, | |
e8788bab | 197 | &dma_clk, |
b2c65616 AV |
198 | &ohci_clk, |
199 | // irq0 .. irq1 | |
200 | }; | |
201 | ||
202 | /* | |
203 | * The four programmable clocks. | |
204 | * You must configure pin multiplexing to bring these signals out. | |
205 | */ | |
206 | static struct clk pck0 = { | |
207 | .name = "pck0", | |
208 | .pmc_mask = AT91_PMC_PCK0, | |
209 | .type = CLK_TYPE_PROGRAMMABLE, | |
210 | .id = 0, | |
211 | }; | |
212 | static struct clk pck1 = { | |
213 | .name = "pck1", | |
214 | .pmc_mask = AT91_PMC_PCK1, | |
215 | .type = CLK_TYPE_PROGRAMMABLE, | |
216 | .id = 1, | |
217 | }; | |
218 | static struct clk pck2 = { | |
219 | .name = "pck2", | |
220 | .pmc_mask = AT91_PMC_PCK2, | |
221 | .type = CLK_TYPE_PROGRAMMABLE, | |
222 | .id = 2, | |
223 | }; | |
224 | static struct clk pck3 = { | |
225 | .name = "pck3", | |
226 | .pmc_mask = AT91_PMC_PCK3, | |
227 | .type = CLK_TYPE_PROGRAMMABLE, | |
228 | .id = 3, | |
229 | }; | |
230 | ||
231 | static void __init at91sam9263_register_clocks(void) | |
232 | { | |
233 | int i; | |
234 | ||
235 | for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) | |
236 | clk_register(periph_clocks[i]); | |
237 | ||
238 | clk_register(&pck0); | |
239 | clk_register(&pck1); | |
240 | clk_register(&pck2); | |
241 | clk_register(&pck3); | |
242 | } | |
243 | ||
244 | /* -------------------------------------------------------------------- | |
245 | * GPIO | |
246 | * -------------------------------------------------------------------- */ | |
247 | ||
248 | static struct at91_gpio_bank at91sam9263_gpio[] = { | |
249 | { | |
250 | .id = AT91SAM9263_ID_PIOA, | |
251 | .offset = AT91_PIOA, | |
252 | .clock = &pioA_clk, | |
253 | }, { | |
254 | .id = AT91SAM9263_ID_PIOB, | |
255 | .offset = AT91_PIOB, | |
256 | .clock = &pioB_clk, | |
257 | }, { | |
258 | .id = AT91SAM9263_ID_PIOCDE, | |
259 | .offset = AT91_PIOC, | |
260 | .clock = &pioCDE_clk, | |
261 | }, { | |
262 | .id = AT91SAM9263_ID_PIOCDE, | |
263 | .offset = AT91_PIOD, | |
264 | .clock = &pioCDE_clk, | |
265 | }, { | |
266 | .id = AT91SAM9263_ID_PIOCDE, | |
267 | .offset = AT91_PIOE, | |
268 | .clock = &pioCDE_clk, | |
269 | } | |
270 | }; | |
271 | ||
3ef2fb42 AV |
272 | static void at91sam9263_poweroff(void) |
273 | { | |
274 | at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW); | |
275 | } | |
276 | ||
b2c65616 AV |
277 | |
278 | /* -------------------------------------------------------------------- | |
279 | * AT91SAM9263 processor initialization | |
280 | * -------------------------------------------------------------------- */ | |
281 | ||
282 | void __init at91sam9263_initialize(unsigned long main_clock) | |
283 | { | |
284 | /* Map peripherals */ | |
285 | iotable_init(at91sam9263_io_desc, ARRAY_SIZE(at91sam9263_io_desc)); | |
286 | ||
bb413db5 | 287 | at91_arch_reset = at91sam9_alt_reset; |
3ef2fb42 | 288 | pm_power_off = at91sam9263_poweroff; |
b2c65616 AV |
289 | at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1); |
290 | ||
291 | /* Init clock subsystem */ | |
292 | at91_clock_init(main_clock); | |
293 | ||
294 | /* Register the processor-specific clocks */ | |
295 | at91sam9263_register_clocks(); | |
296 | ||
297 | /* Register GPIO subsystem */ | |
298 | at91_gpio_init(at91sam9263_gpio, 5); | |
299 | } | |
300 | ||
301 | /* -------------------------------------------------------------------- | |
302 | * Interrupt initialization | |
303 | * -------------------------------------------------------------------- */ | |
304 | ||
305 | /* | |
306 | * The default interrupt priority levels (0 = lowest, 7 = highest). | |
307 | */ | |
308 | static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = { | |
309 | 7, /* Advanced Interrupt Controller (FIQ) */ | |
310 | 7, /* System Peripherals */ | |
7cbed2b5 AV |
311 | 1, /* Parallel IO Controller A */ |
312 | 1, /* Parallel IO Controller B */ | |
313 | 1, /* Parallel IO Controller C, D and E */ | |
b2c65616 AV |
314 | 0, |
315 | 0, | |
7cbed2b5 AV |
316 | 5, /* USART 0 */ |
317 | 5, /* USART 1 */ | |
318 | 5, /* USART 2 */ | |
b2c65616 AV |
319 | 0, /* Multimedia Card Interface 0 */ |
320 | 0, /* Multimedia Card Interface 1 */ | |
7cbed2b5 AV |
321 | 3, /* CAN */ |
322 | 6, /* Two-Wire Interface */ | |
323 | 5, /* Serial Peripheral Interface 0 */ | |
324 | 5, /* Serial Peripheral Interface 1 */ | |
325 | 4, /* Serial Synchronous Controller 0 */ | |
326 | 4, /* Serial Synchronous Controller 1 */ | |
327 | 5, /* AC97 Controller */ | |
b2c65616 AV |
328 | 0, /* Timer Counter 0, 1 and 2 */ |
329 | 0, /* Pulse Width Modulation Controller */ | |
330 | 3, /* Ethernet */ | |
331 | 0, | |
332 | 0, /* 2D Graphic Engine */ | |
7cbed2b5 | 333 | 2, /* USB Device Port */ |
b2c65616 AV |
334 | 0, /* Image Sensor Interface */ |
335 | 3, /* LDC Controller */ | |
336 | 0, /* DMA Controller */ | |
337 | 0, | |
7cbed2b5 | 338 | 2, /* USB Host port */ |
b2c65616 AV |
339 | 0, /* Advanced Interrupt Controller (IRQ0) */ |
340 | 0, /* Advanced Interrupt Controller (IRQ1) */ | |
341 | }; | |
342 | ||
343 | void __init at91sam9263_init_interrupts(unsigned int priority[NR_AIC_IRQS]) | |
344 | { | |
345 | if (!priority) | |
346 | priority = at91sam9263_default_irq_priority; | |
347 | ||
348 | /* Initialize the AIC interrupt controller */ | |
349 | at91_aic_init(priority); | |
350 | ||
351 | /* Enable GPIO interrupts */ | |
352 | at91_gpio_irq_setup(); | |
353 | } |