ARM: mm: introduce present, faulting entries for PAGE_NONE
[deliverable/linux.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>
14
c9dfafba 15#include <asm/proc-fns.h>
80b02c17 16#include <asm/irq.h>
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17#include <asm/mach/arch.h>
18#include <asm/mach/map.h>
9f97da78 19#include <asm/system_misc.h>
a09e64fb 20#include <mach/at91sam9263.h>
8fe82a55 21#include <mach/at91_aic.h>
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22#include <mach/at91_pmc.h>
23#include <mach/at91_rstc.h>
b2c65616 24
21d08b9d 25#include "soc.h"
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26#include "generic.h"
27#include "clock.h"
faee0cc3 28#include "sam9_smc.h"
b2c65616 29
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30/* --------------------------------------------------------------------
31 * Clocks
32 * -------------------------------------------------------------------- */
33
34/*
35 * The peripheral clocks.
36 */
37static struct clk pioA_clk = {
38 .name = "pioA_clk",
39 .pmc_mask = 1 << AT91SAM9263_ID_PIOA,
40 .type = CLK_TYPE_PERIPHERAL,
41};
42static struct clk pioB_clk = {
43 .name = "pioB_clk",
44 .pmc_mask = 1 << AT91SAM9263_ID_PIOB,
45 .type = CLK_TYPE_PERIPHERAL,
46};
47static struct clk pioCDE_clk = {
48 .name = "pioCDE_clk",
49 .pmc_mask = 1 << AT91SAM9263_ID_PIOCDE,
50 .type = CLK_TYPE_PERIPHERAL,
51};
52static struct clk usart0_clk = {
53 .name = "usart0_clk",
54 .pmc_mask = 1 << AT91SAM9263_ID_US0,
55 .type = CLK_TYPE_PERIPHERAL,
56};
57static struct clk usart1_clk = {
58 .name = "usart1_clk",
59 .pmc_mask = 1 << AT91SAM9263_ID_US1,
60 .type = CLK_TYPE_PERIPHERAL,
61};
62static struct clk usart2_clk = {
63 .name = "usart2_clk",
64 .pmc_mask = 1 << AT91SAM9263_ID_US2,
65 .type = CLK_TYPE_PERIPHERAL,
66};
67static struct clk mmc0_clk = {
68 .name = "mci0_clk",
69 .pmc_mask = 1 << AT91SAM9263_ID_MCI0,
70 .type = CLK_TYPE_PERIPHERAL,
71};
72static struct clk mmc1_clk = {
73 .name = "mci1_clk",
74 .pmc_mask = 1 << AT91SAM9263_ID_MCI1,
75 .type = CLK_TYPE_PERIPHERAL,
76};
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77static struct clk can_clk = {
78 .name = "can_clk",
79 .pmc_mask = 1 << AT91SAM9263_ID_CAN,
80 .type = CLK_TYPE_PERIPHERAL,
81};
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82static struct clk twi_clk = {
83 .name = "twi_clk",
84 .pmc_mask = 1 << AT91SAM9263_ID_TWI,
85 .type = CLK_TYPE_PERIPHERAL,
86};
87static struct clk spi0_clk = {
88 .name = "spi0_clk",
89 .pmc_mask = 1 << AT91SAM9263_ID_SPI0,
90 .type = CLK_TYPE_PERIPHERAL,
91};
92static struct clk spi1_clk = {
93 .name = "spi1_clk",
94 .pmc_mask = 1 << AT91SAM9263_ID_SPI1,
95 .type = CLK_TYPE_PERIPHERAL,
96};
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97static struct clk ssc0_clk = {
98 .name = "ssc0_clk",
99 .pmc_mask = 1 << AT91SAM9263_ID_SSC0,
100 .type = CLK_TYPE_PERIPHERAL,
101};
102static struct clk ssc1_clk = {
103 .name = "ssc1_clk",
104 .pmc_mask = 1 << AT91SAM9263_ID_SSC1,
105 .type = CLK_TYPE_PERIPHERAL,
106};
107static struct clk ac97_clk = {
108 .name = "ac97_clk",
109 .pmc_mask = 1 << AT91SAM9263_ID_AC97C,
110 .type = CLK_TYPE_PERIPHERAL,
111};
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112static struct clk tcb_clk = {
113 .name = "tcb_clk",
114 .pmc_mask = 1 << AT91SAM9263_ID_TCB,
115 .type = CLK_TYPE_PERIPHERAL,
116};
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117static struct clk pwm_clk = {
118 .name = "pwm_clk",
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119 .pmc_mask = 1 << AT91SAM9263_ID_PWMC,
120 .type = CLK_TYPE_PERIPHERAL,
121};
69b2e99c 122static struct clk macb_clk = {
865d605e 123 .name = "pclk",
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124 .pmc_mask = 1 << AT91SAM9263_ID_EMAC,
125 .type = CLK_TYPE_PERIPHERAL,
126};
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127static struct clk dma_clk = {
128 .name = "dma_clk",
129 .pmc_mask = 1 << AT91SAM9263_ID_DMA,
130 .type = CLK_TYPE_PERIPHERAL,
131};
132static struct clk twodge_clk = {
133 .name = "2dge_clk",
134 .pmc_mask = 1 << AT91SAM9263_ID_2DGE,
135 .type = CLK_TYPE_PERIPHERAL,
136};
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137static struct clk udc_clk = {
138 .name = "udc_clk",
139 .pmc_mask = 1 << AT91SAM9263_ID_UDP,
140 .type = CLK_TYPE_PERIPHERAL,
141};
142static struct clk isi_clk = {
143 .name = "isi_clk",
144 .pmc_mask = 1 << AT91SAM9263_ID_ISI,
145 .type = CLK_TYPE_PERIPHERAL,
146};
147static struct clk lcdc_clk = {
148 .name = "lcdc_clk",
7f6e2d99 149 .pmc_mask = 1 << AT91SAM9263_ID_LCDC,
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150 .type = CLK_TYPE_PERIPHERAL,
151};
152static struct clk ohci_clk = {
153 .name = "ohci_clk",
154 .pmc_mask = 1 << AT91SAM9263_ID_UHP,
155 .type = CLK_TYPE_PERIPHERAL,
156};
157
158static struct clk *periph_clocks[] __initdata = {
159 &pioA_clk,
160 &pioB_clk,
161 &pioCDE_clk,
162 &usart0_clk,
163 &usart1_clk,
164 &usart2_clk,
165 &mmc0_clk,
166 &mmc1_clk,
e8788bab 167 &can_clk,
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168 &twi_clk,
169 &spi0_clk,
170 &spi1_clk,
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171 &ssc0_clk,
172 &ssc1_clk,
173 &ac97_clk,
b2c65616 174 &tcb_clk,
bb1ad68b 175 &pwm_clk,
69b2e99c 176 &macb_clk,
e8788bab 177 &twodge_clk,
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178 &udc_clk,
179 &isi_clk,
180 &lcdc_clk,
e8788bab 181 &dma_clk,
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182 &ohci_clk,
183 // irq0 .. irq1
184};
185
bd602995 186static struct clk_lookup periph_clocks_lookups[] = {
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187 /* One additional fake clock for macb_hclk */
188 CLKDEV_CON_ID("hclk", &macb_clk),
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189 CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
190 CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
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191 CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.0", &mmc0_clk),
192 CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.1", &mmc1_clk),
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193 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
194 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
195 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
302090a6 196 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
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197 /* fake hclk clock */
198 CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
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199 CLKDEV_CON_ID("pioA", &pioA_clk),
200 CLKDEV_CON_ID("pioB", &pioB_clk),
201 CLKDEV_CON_ID("pioC", &pioCDE_clk),
202 CLKDEV_CON_ID("pioD", &pioCDE_clk),
203 CLKDEV_CON_ID("pioE", &pioCDE_clk),
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204 /* more usart lookup table for DT entries */
205 CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck),
206 CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk),
207 CLKDEV_CON_DEV_ID("usart", "fff90000.serial", &usart1_clk),
208 CLKDEV_CON_DEV_ID("usart", "fff94000.serial", &usart2_clk),
209 /* more tc lookup table for DT entries */
210 CLKDEV_CON_DEV_ID("t0_clk", "fff7c000.timer", &tcb_clk),
211 CLKDEV_CON_DEV_ID("hclk", "a00000.ohci", &ohci_clk),
212 CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk),
213 CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk),
f7d19b90 214 CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi_clk),
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215};
216
217static struct clk_lookup usart_clocks_lookups[] = {
218 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
219 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
220 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
221 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
222};
223
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224/*
225 * The four programmable clocks.
226 * You must configure pin multiplexing to bring these signals out.
227 */
228static struct clk pck0 = {
229 .name = "pck0",
230 .pmc_mask = AT91_PMC_PCK0,
231 .type = CLK_TYPE_PROGRAMMABLE,
232 .id = 0,
233};
234static struct clk pck1 = {
235 .name = "pck1",
236 .pmc_mask = AT91_PMC_PCK1,
237 .type = CLK_TYPE_PROGRAMMABLE,
238 .id = 1,
239};
240static struct clk pck2 = {
241 .name = "pck2",
242 .pmc_mask = AT91_PMC_PCK2,
243 .type = CLK_TYPE_PROGRAMMABLE,
244 .id = 2,
245};
246static struct clk pck3 = {
247 .name = "pck3",
248 .pmc_mask = AT91_PMC_PCK3,
249 .type = CLK_TYPE_PROGRAMMABLE,
250 .id = 3,
251};
252
253static void __init at91sam9263_register_clocks(void)
254{
255 int i;
256
257 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
258 clk_register(periph_clocks[i]);
259
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260 clkdev_add_table(periph_clocks_lookups,
261 ARRAY_SIZE(periph_clocks_lookups));
262 clkdev_add_table(usart_clocks_lookups,
263 ARRAY_SIZE(usart_clocks_lookups));
264
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265 clk_register(&pck0);
266 clk_register(&pck1);
267 clk_register(&pck2);
268 clk_register(&pck3);
269}
270
271/* --------------------------------------------------------------------
272 * GPIO
273 * -------------------------------------------------------------------- */
274
1a2d9156 275static struct at91_gpio_bank at91sam9263_gpio[] __initdata = {
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276 {
277 .id = AT91SAM9263_ID_PIOA,
80e91cb8 278 .regbase = AT91SAM9263_BASE_PIOA,
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279 }, {
280 .id = AT91SAM9263_ID_PIOB,
80e91cb8 281 .regbase = AT91SAM9263_BASE_PIOB,
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282 }, {
283 .id = AT91SAM9263_ID_PIOCDE,
80e91cb8 284 .regbase = AT91SAM9263_BASE_PIOC,
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285 }, {
286 .id = AT91SAM9263_ID_PIOCDE,
80e91cb8 287 .regbase = AT91SAM9263_BASE_PIOD,
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288 }, {
289 .id = AT91SAM9263_ID_PIOCDE,
80e91cb8 290 .regbase = AT91SAM9263_BASE_PIOE,
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291 }
292};
293
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294/* --------------------------------------------------------------------
295 * AT91SAM9263 processor initialization
296 * -------------------------------------------------------------------- */
297
21d08b9d 298static void __init at91sam9263_map_io(void)
b2c65616 299{
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300 at91_init_sram(0, AT91SAM9263_SRAM0_BASE, AT91SAM9263_SRAM0_SIZE);
301 at91_init_sram(1, AT91SAM9263_SRAM1_BASE, AT91SAM9263_SRAM1_SIZE);
1b021a3b 302}
b2c65616 303
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304static void __init at91sam9263_ioremap_registers(void)
305{
f22deee5 306 at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC);
e9f68b5c 307 at91_ioremap_rstc(AT91SAM9263_BASE_RSTC);
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308 at91_ioremap_ramc(0, AT91SAM9263_BASE_SDRAMC0, 512);
309 at91_ioremap_ramc(1, AT91SAM9263_BASE_SDRAMC1, 512);
4ab0c599 310 at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT);
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311 at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
312 at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
4342d647 313 at91_ioremap_matrix(AT91SAM9263_BASE_MATRIX);
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314}
315
46539374 316static void __init at91sam9263_initialize(void)
1b021a3b 317{
0d781716 318 arm_pm_idle = at91sam9_idle;
1b2073e7 319 arm_pm_restart = at91sam9_alt_restart;
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320 at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
321
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322 /* Register GPIO subsystem */
323 at91_gpio_init(at91sam9263_gpio, 5);
324}
325
326/* --------------------------------------------------------------------
327 * Interrupt initialization
328 * -------------------------------------------------------------------- */
329
330/*
331 * The default interrupt priority levels (0 = lowest, 7 = highest).
332 */
333static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
334 7, /* Advanced Interrupt Controller (FIQ) */
335 7, /* System Peripherals */
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336 1, /* Parallel IO Controller A */
337 1, /* Parallel IO Controller B */
338 1, /* Parallel IO Controller C, D and E */
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339 0,
340 0,
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341 5, /* USART 0 */
342 5, /* USART 1 */
343 5, /* USART 2 */
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344 0, /* Multimedia Card Interface 0 */
345 0, /* Multimedia Card Interface 1 */
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346 3, /* CAN */
347 6, /* Two-Wire Interface */
348 5, /* Serial Peripheral Interface 0 */
349 5, /* Serial Peripheral Interface 1 */
350 4, /* Serial Synchronous Controller 0 */
351 4, /* Serial Synchronous Controller 1 */
352 5, /* AC97 Controller */
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353 0, /* Timer Counter 0, 1 and 2 */
354 0, /* Pulse Width Modulation Controller */
355 3, /* Ethernet */
356 0,
357 0, /* 2D Graphic Engine */
7cbed2b5 358 2, /* USB Device Port */
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359 0, /* Image Sensor Interface */
360 3, /* LDC Controller */
361 0, /* DMA Controller */
362 0,
7cbed2b5 363 2, /* USB Host port */
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364 0, /* Advanced Interrupt Controller (IRQ0) */
365 0, /* Advanced Interrupt Controller (IRQ1) */
366};
367
8c3583b6 368struct at91_init_soc __initdata at91sam9263_soc = {
21d08b9d 369 .map_io = at91sam9263_map_io,
92100c12 370 .default_irq_priority = at91sam9263_default_irq_priority,
cfa5a1fe 371 .ioremap_registers = at91sam9263_ioremap_registers,
51ddec76 372 .register_clocks = at91sam9263_register_clocks,
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373 .init = at91sam9263_initialize,
374};
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