Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-at91 / at91sam9263.c
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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>
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17#include <asm/mach/arch.h>
18#include <asm/mach/map.h>
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19#include <mach/at91sam9263.h>
20#include <mach/at91_pmc.h>
21#include <mach/at91_rstc.h>
22#include <mach/at91_shdwc.h>
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23
24#include "generic.h"
25#include "clock.h"
26
27static 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 */
53static struct clk pioA_clk = {
54 .name = "pioA_clk",
55 .pmc_mask = 1 << AT91SAM9263_ID_PIOA,
56 .type = CLK_TYPE_PERIPHERAL,
57};
58static struct clk pioB_clk = {
59 .name = "pioB_clk",
60 .pmc_mask = 1 << AT91SAM9263_ID_PIOB,
61 .type = CLK_TYPE_PERIPHERAL,
62};
63static struct clk pioCDE_clk = {
64 .name = "pioCDE_clk",
65 .pmc_mask = 1 << AT91SAM9263_ID_PIOCDE,
66 .type = CLK_TYPE_PERIPHERAL,
67};
68static struct clk usart0_clk = {
69 .name = "usart0_clk",
70 .pmc_mask = 1 << AT91SAM9263_ID_US0,
71 .type = CLK_TYPE_PERIPHERAL,
72};
73static struct clk usart1_clk = {
74 .name = "usart1_clk",
75 .pmc_mask = 1 << AT91SAM9263_ID_US1,
76 .type = CLK_TYPE_PERIPHERAL,
77};
78static struct clk usart2_clk = {
79 .name = "usart2_clk",
80 .pmc_mask = 1 << AT91SAM9263_ID_US2,
81 .type = CLK_TYPE_PERIPHERAL,
82};
83static struct clk mmc0_clk = {
84 .name = "mci0_clk",
85 .pmc_mask = 1 << AT91SAM9263_ID_MCI0,
86 .type = CLK_TYPE_PERIPHERAL,
87};
88static struct clk mmc1_clk = {
89 .name = "mci1_clk",
90 .pmc_mask = 1 << AT91SAM9263_ID_MCI1,
91 .type = CLK_TYPE_PERIPHERAL,
92};
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93static struct clk can_clk = {
94 .name = "can_clk",
95 .pmc_mask = 1 << AT91SAM9263_ID_CAN,
96 .type = CLK_TYPE_PERIPHERAL,
97};
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98static struct clk twi_clk = {
99 .name = "twi_clk",
100 .pmc_mask = 1 << AT91SAM9263_ID_TWI,
101 .type = CLK_TYPE_PERIPHERAL,
102};
103static struct clk spi0_clk = {
104 .name = "spi0_clk",
105 .pmc_mask = 1 << AT91SAM9263_ID_SPI0,
106 .type = CLK_TYPE_PERIPHERAL,
107};
108static struct clk spi1_clk = {
109 .name = "spi1_clk",
110 .pmc_mask = 1 << AT91SAM9263_ID_SPI1,
111 .type = CLK_TYPE_PERIPHERAL,
112};
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113static struct clk ssc0_clk = {
114 .name = "ssc0_clk",
115 .pmc_mask = 1 << AT91SAM9263_ID_SSC0,
116 .type = CLK_TYPE_PERIPHERAL,
117};
118static struct clk ssc1_clk = {
119 .name = "ssc1_clk",
120 .pmc_mask = 1 << AT91SAM9263_ID_SSC1,
121 .type = CLK_TYPE_PERIPHERAL,
122};
123static struct clk ac97_clk = {
124 .name = "ac97_clk",
125 .pmc_mask = 1 << AT91SAM9263_ID_AC97C,
126 .type = CLK_TYPE_PERIPHERAL,
127};
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128static struct clk tcb_clk = {
129 .name = "tcb_clk",
130 .pmc_mask = 1 << AT91SAM9263_ID_TCB,
131 .type = CLK_TYPE_PERIPHERAL,
132};
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133static struct clk pwm_clk = {
134 .name = "pwm_clk",
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135 .pmc_mask = 1 << AT91SAM9263_ID_PWMC,
136 .type = CLK_TYPE_PERIPHERAL,
137};
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138static struct clk macb_clk = {
139 .name = "macb_clk",
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140 .pmc_mask = 1 << AT91SAM9263_ID_EMAC,
141 .type = CLK_TYPE_PERIPHERAL,
142};
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143static struct clk dma_clk = {
144 .name = "dma_clk",
145 .pmc_mask = 1 << AT91SAM9263_ID_DMA,
146 .type = CLK_TYPE_PERIPHERAL,
147};
148static struct clk twodge_clk = {
149 .name = "2dge_clk",
150 .pmc_mask = 1 << AT91SAM9263_ID_2DGE,
151 .type = CLK_TYPE_PERIPHERAL,
152};
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153static struct clk udc_clk = {
154 .name = "udc_clk",
155 .pmc_mask = 1 << AT91SAM9263_ID_UDP,
156 .type = CLK_TYPE_PERIPHERAL,
157};
158static struct clk isi_clk = {
159 .name = "isi_clk",
160 .pmc_mask = 1 << AT91SAM9263_ID_ISI,
161 .type = CLK_TYPE_PERIPHERAL,
162};
163static struct clk lcdc_clk = {
164 .name = "lcdc_clk",
7f6e2d99 165 .pmc_mask = 1 << AT91SAM9263_ID_LCDC,
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166 .type = CLK_TYPE_PERIPHERAL,
167};
168static struct clk ohci_clk = {
169 .name = "ohci_clk",
170 .pmc_mask = 1 << AT91SAM9263_ID_UHP,
171 .type = CLK_TYPE_PERIPHERAL,
172};
173
174static 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,
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184 &twi_clk,
185 &spi0_clk,
186 &spi1_clk,
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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,
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194 &udc_clk,
195 &isi_clk,
196 &lcdc_clk,
e8788bab 197 &dma_clk,
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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 */
206static struct clk pck0 = {
207 .name = "pck0",
208 .pmc_mask = AT91_PMC_PCK0,
209 .type = CLK_TYPE_PROGRAMMABLE,
210 .id = 0,
211};
212static struct clk pck1 = {
213 .name = "pck1",
214 .pmc_mask = AT91_PMC_PCK1,
215 .type = CLK_TYPE_PROGRAMMABLE,
216 .id = 1,
217};
218static struct clk pck2 = {
219 .name = "pck2",
220 .pmc_mask = AT91_PMC_PCK2,
221 .type = CLK_TYPE_PROGRAMMABLE,
222 .id = 2,
223};
224static struct clk pck3 = {
225 .name = "pck3",
226 .pmc_mask = AT91_PMC_PCK3,
227 .type = CLK_TYPE_PROGRAMMABLE,
228 .id = 3,
229};
230
231static 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
248static 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
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272static void at91sam9263_poweroff(void)
273{
274 at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
275}
276
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277
278/* --------------------------------------------------------------------
279 * AT91SAM9263 processor initialization
280 * -------------------------------------------------------------------- */
281
282void __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;
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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 */
308static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
309 7, /* Advanced Interrupt Controller (FIQ) */
310 7, /* System Peripherals */
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311 1, /* Parallel IO Controller A */
312 1, /* Parallel IO Controller B */
313 1, /* Parallel IO Controller C, D and E */
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314 0,
315 0,
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316 5, /* USART 0 */
317 5, /* USART 1 */
318 5, /* USART 2 */
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319 0, /* Multimedia Card Interface 0 */
320 0, /* Multimedia Card Interface 1 */
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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 */
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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 */
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334 0, /* Image Sensor Interface */
335 3, /* LDC Controller */
336 0, /* DMA Controller */
337 0,
7cbed2b5 338 2, /* USB Host port */
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339 0, /* Advanced Interrupt Controller (IRQ0) */
340 0, /* Advanced Interrupt Controller (IRQ1) */
341};
342
343void __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}