x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
[linux/fpc-iii.git] / arch / arm / mach-at91 / at91sam9g45.c
blob9f7a97c84c12444a94b6bc47f61e92a0c6d3dbf9
1 /*
2 * Chip-specific setup code for the AT91SAM9G45 family
4 * Copyright (C) 2009 Atmel Corporation.
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.
13 #include <linux/module.h>
14 #include <linux/dma-mapping.h>
16 #include <asm/irq.h>
17 #include <asm/mach/arch.h>
18 #include <asm/mach/map.h>
19 #include <asm/system_misc.h>
20 #include <mach/at91sam9g45.h>
21 #include <mach/at91_pmc.h>
22 #include <mach/cpu.h>
24 #include "at91_aic.h"
25 #include "soc.h"
26 #include "generic.h"
27 #include "clock.h"
28 #include "sam9_smc.h"
30 /* --------------------------------------------------------------------
31 * Clocks
32 * -------------------------------------------------------------------- */
35 * The peripheral clocks.
37 static struct clk pioA_clk = {
38 .name = "pioA_clk",
39 .pmc_mask = 1 << AT91SAM9G45_ID_PIOA,
40 .type = CLK_TYPE_PERIPHERAL,
42 static struct clk pioB_clk = {
43 .name = "pioB_clk",
44 .pmc_mask = 1 << AT91SAM9G45_ID_PIOB,
45 .type = CLK_TYPE_PERIPHERAL,
47 static struct clk pioC_clk = {
48 .name = "pioC_clk",
49 .pmc_mask = 1 << AT91SAM9G45_ID_PIOC,
50 .type = CLK_TYPE_PERIPHERAL,
52 static struct clk pioDE_clk = {
53 .name = "pioDE_clk",
54 .pmc_mask = 1 << AT91SAM9G45_ID_PIODE,
55 .type = CLK_TYPE_PERIPHERAL,
57 static struct clk trng_clk = {
58 .name = "trng_clk",
59 .pmc_mask = 1 << AT91SAM9G45_ID_TRNG,
60 .type = CLK_TYPE_PERIPHERAL,
62 static struct clk usart0_clk = {
63 .name = "usart0_clk",
64 .pmc_mask = 1 << AT91SAM9G45_ID_US0,
65 .type = CLK_TYPE_PERIPHERAL,
67 static struct clk usart1_clk = {
68 .name = "usart1_clk",
69 .pmc_mask = 1 << AT91SAM9G45_ID_US1,
70 .type = CLK_TYPE_PERIPHERAL,
72 static struct clk usart2_clk = {
73 .name = "usart2_clk",
74 .pmc_mask = 1 << AT91SAM9G45_ID_US2,
75 .type = CLK_TYPE_PERIPHERAL,
77 static struct clk usart3_clk = {
78 .name = "usart3_clk",
79 .pmc_mask = 1 << AT91SAM9G45_ID_US3,
80 .type = CLK_TYPE_PERIPHERAL,
82 static struct clk mmc0_clk = {
83 .name = "mci0_clk",
84 .pmc_mask = 1 << AT91SAM9G45_ID_MCI0,
85 .type = CLK_TYPE_PERIPHERAL,
87 static struct clk twi0_clk = {
88 .name = "twi0_clk",
89 .pmc_mask = 1 << AT91SAM9G45_ID_TWI0,
90 .type = CLK_TYPE_PERIPHERAL,
92 static struct clk twi1_clk = {
93 .name = "twi1_clk",
94 .pmc_mask = 1 << AT91SAM9G45_ID_TWI1,
95 .type = CLK_TYPE_PERIPHERAL,
97 static struct clk spi0_clk = {
98 .name = "spi0_clk",
99 .pmc_mask = 1 << AT91SAM9G45_ID_SPI0,
100 .type = CLK_TYPE_PERIPHERAL,
102 static struct clk spi1_clk = {
103 .name = "spi1_clk",
104 .pmc_mask = 1 << AT91SAM9G45_ID_SPI1,
105 .type = CLK_TYPE_PERIPHERAL,
107 static struct clk ssc0_clk = {
108 .name = "ssc0_clk",
109 .pmc_mask = 1 << AT91SAM9G45_ID_SSC0,
110 .type = CLK_TYPE_PERIPHERAL,
112 static struct clk ssc1_clk = {
113 .name = "ssc1_clk",
114 .pmc_mask = 1 << AT91SAM9G45_ID_SSC1,
115 .type = CLK_TYPE_PERIPHERAL,
117 static struct clk tcb0_clk = {
118 .name = "tcb0_clk",
119 .pmc_mask = 1 << AT91SAM9G45_ID_TCB,
120 .type = CLK_TYPE_PERIPHERAL,
122 static struct clk pwm_clk = {
123 .name = "pwm_clk",
124 .pmc_mask = 1 << AT91SAM9G45_ID_PWMC,
125 .type = CLK_TYPE_PERIPHERAL,
127 static struct clk tsc_clk = {
128 .name = "tsc_clk",
129 .pmc_mask = 1 << AT91SAM9G45_ID_TSC,
130 .type = CLK_TYPE_PERIPHERAL,
132 static struct clk dma_clk = {
133 .name = "dma_clk",
134 .pmc_mask = 1 << AT91SAM9G45_ID_DMA,
135 .type = CLK_TYPE_PERIPHERAL,
137 static struct clk uhphs_clk = {
138 .name = "uhphs_clk",
139 .pmc_mask = 1 << AT91SAM9G45_ID_UHPHS,
140 .type = CLK_TYPE_PERIPHERAL,
142 static struct clk lcdc_clk = {
143 .name = "lcdc_clk",
144 .pmc_mask = 1 << AT91SAM9G45_ID_LCDC,
145 .type = CLK_TYPE_PERIPHERAL,
147 static struct clk ac97_clk = {
148 .name = "ac97_clk",
149 .pmc_mask = 1 << AT91SAM9G45_ID_AC97C,
150 .type = CLK_TYPE_PERIPHERAL,
152 static struct clk macb_clk = {
153 .name = "pclk",
154 .pmc_mask = 1 << AT91SAM9G45_ID_EMAC,
155 .type = CLK_TYPE_PERIPHERAL,
157 static struct clk isi_clk = {
158 .name = "isi_clk",
159 .pmc_mask = 1 << AT91SAM9G45_ID_ISI,
160 .type = CLK_TYPE_PERIPHERAL,
162 static struct clk udphs_clk = {
163 .name = "udphs_clk",
164 .pmc_mask = 1 << AT91SAM9G45_ID_UDPHS,
165 .type = CLK_TYPE_PERIPHERAL,
167 static struct clk mmc1_clk = {
168 .name = "mci1_clk",
169 .pmc_mask = 1 << AT91SAM9G45_ID_MCI1,
170 .type = CLK_TYPE_PERIPHERAL,
173 /* Video decoder clock - Only for sam9m10/sam9m11 */
174 static struct clk vdec_clk = {
175 .name = "vdec_clk",
176 .pmc_mask = 1 << AT91SAM9G45_ID_VDEC,
177 .type = CLK_TYPE_PERIPHERAL,
180 static struct clk adc_op_clk = {
181 .name = "adc_op_clk",
182 .type = CLK_TYPE_PERIPHERAL,
183 .rate_hz = 13200000,
186 /* AES/TDES/SHA clock - Only for sam9m11/sam9g56 */
187 static struct clk aestdessha_clk = {
188 .name = "aestdessha_clk",
189 .pmc_mask = 1 << AT91SAM9G45_ID_AESTDESSHA,
190 .type = CLK_TYPE_PERIPHERAL,
193 static struct clk *periph_clocks[] __initdata = {
194 &pioA_clk,
195 &pioB_clk,
196 &pioC_clk,
197 &pioDE_clk,
198 &trng_clk,
199 &usart0_clk,
200 &usart1_clk,
201 &usart2_clk,
202 &usart3_clk,
203 &mmc0_clk,
204 &twi0_clk,
205 &twi1_clk,
206 &spi0_clk,
207 &spi1_clk,
208 &ssc0_clk,
209 &ssc1_clk,
210 &tcb0_clk,
211 &pwm_clk,
212 &tsc_clk,
213 &dma_clk,
214 &uhphs_clk,
215 &lcdc_clk,
216 &ac97_clk,
217 &macb_clk,
218 &isi_clk,
219 &udphs_clk,
220 &mmc1_clk,
221 &adc_op_clk,
222 &aestdessha_clk,
223 // irq0
226 static struct clk_lookup periph_clocks_lookups[] = {
227 /* One additional fake clock for macb_hclk */
228 CLKDEV_CON_ID("hclk", &macb_clk),
229 /* One additional fake clock for ohci */
230 CLKDEV_CON_ID("ohci_clk", &uhphs_clk),
231 CLKDEV_CON_DEV_ID("hclk", "at91sam9g45-lcdfb.0", &lcdc_clk),
232 CLKDEV_CON_DEV_ID("hclk", "at91sam9g45es-lcdfb.0", &lcdc_clk),
233 CLKDEV_CON_DEV_ID("ehci_clk", "atmel-ehci", &uhphs_clk),
234 CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk),
235 CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk),
236 CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.0", &mmc0_clk),
237 CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.1", &mmc1_clk),
238 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
239 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
240 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb0_clk),
241 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk),
242 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi0_clk),
243 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.1", &twi1_clk),
244 CLKDEV_CON_DEV_ID("pclk", "at91sam9g45_ssc.0", &ssc0_clk),
245 CLKDEV_CON_DEV_ID("pclk", "at91sam9g45_ssc.1", &ssc1_clk),
246 CLKDEV_CON_DEV_ID("pclk", "fff9c000.ssc", &ssc0_clk),
247 CLKDEV_CON_DEV_ID("pclk", "fffa0000.ssc", &ssc1_clk),
248 CLKDEV_CON_DEV_ID(NULL, "atmel-trng", &trng_clk),
249 CLKDEV_CON_DEV_ID(NULL, "atmel_sha", &aestdessha_clk),
250 CLKDEV_CON_DEV_ID(NULL, "atmel_tdes", &aestdessha_clk),
251 CLKDEV_CON_DEV_ID(NULL, "atmel_aes", &aestdessha_clk),
252 /* more usart lookup table for DT entries */
253 CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck),
254 CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk),
255 CLKDEV_CON_DEV_ID("usart", "fff90000.serial", &usart1_clk),
256 CLKDEV_CON_DEV_ID("usart", "fff94000.serial", &usart2_clk),
257 CLKDEV_CON_DEV_ID("usart", "fff98000.serial", &usart3_clk),
258 /* more tc lookup table for DT entries */
259 CLKDEV_CON_DEV_ID("t0_clk", "fff7c000.timer", &tcb0_clk),
260 CLKDEV_CON_DEV_ID("t0_clk", "fffd4000.timer", &tcb0_clk),
261 CLKDEV_CON_DEV_ID("hclk", "700000.ohci", &uhphs_clk),
262 CLKDEV_CON_DEV_ID("ehci_clk", "800000.ehci", &uhphs_clk),
263 CLKDEV_CON_DEV_ID("mci_clk", "fff80000.mmc", &mmc0_clk),
264 CLKDEV_CON_DEV_ID("mci_clk", "fffd0000.mmc", &mmc1_clk),
265 CLKDEV_CON_DEV_ID(NULL, "fff84000.i2c", &twi0_clk),
266 CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi1_clk),
267 CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk),
268 CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk),
269 CLKDEV_CON_DEV_ID("hclk", "600000.gadget", &utmi_clk),
270 CLKDEV_CON_DEV_ID("pclk", "600000.gadget", &udphs_clk),
271 /* fake hclk clock */
272 CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk),
273 CLKDEV_CON_DEV_ID(NULL, "fffff200.gpio", &pioA_clk),
274 CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioB_clk),
275 CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioC_clk),
276 CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioDE_clk),
277 CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioDE_clk),
279 CLKDEV_CON_ID("pioA", &pioA_clk),
280 CLKDEV_CON_ID("pioB", &pioB_clk),
281 CLKDEV_CON_ID("pioC", &pioC_clk),
282 CLKDEV_CON_ID("pioD", &pioDE_clk),
283 CLKDEV_CON_ID("pioE", &pioDE_clk),
284 /* Fake adc clock */
285 CLKDEV_CON_ID("adc_clk", &tsc_clk),
288 static struct clk_lookup usart_clocks_lookups[] = {
289 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
290 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
291 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
292 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
293 CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
297 * The two programmable clocks.
298 * You must configure pin multiplexing to bring these signals out.
300 static struct clk pck0 = {
301 .name = "pck0",
302 .pmc_mask = AT91_PMC_PCK0,
303 .type = CLK_TYPE_PROGRAMMABLE,
304 .id = 0,
306 static struct clk pck1 = {
307 .name = "pck1",
308 .pmc_mask = AT91_PMC_PCK1,
309 .type = CLK_TYPE_PROGRAMMABLE,
310 .id = 1,
313 static void __init at91sam9g45_register_clocks(void)
315 int i;
317 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
318 clk_register(periph_clocks[i]);
320 clkdev_add_table(periph_clocks_lookups,
321 ARRAY_SIZE(periph_clocks_lookups));
322 clkdev_add_table(usart_clocks_lookups,
323 ARRAY_SIZE(usart_clocks_lookups));
325 if (cpu_is_at91sam9m10() || cpu_is_at91sam9m11())
326 clk_register(&vdec_clk);
328 clk_register(&pck0);
329 clk_register(&pck1);
332 /* --------------------------------------------------------------------
333 * GPIO
334 * -------------------------------------------------------------------- */
336 static struct at91_gpio_bank at91sam9g45_gpio[] __initdata = {
338 .id = AT91SAM9G45_ID_PIOA,
339 .regbase = AT91SAM9G45_BASE_PIOA,
340 }, {
341 .id = AT91SAM9G45_ID_PIOB,
342 .regbase = AT91SAM9G45_BASE_PIOB,
343 }, {
344 .id = AT91SAM9G45_ID_PIOC,
345 .regbase = AT91SAM9G45_BASE_PIOC,
346 }, {
347 .id = AT91SAM9G45_ID_PIODE,
348 .regbase = AT91SAM9G45_BASE_PIOD,
349 }, {
350 .id = AT91SAM9G45_ID_PIODE,
351 .regbase = AT91SAM9G45_BASE_PIOE,
355 /* --------------------------------------------------------------------
356 * AT91SAM9G45 processor initialization
357 * -------------------------------------------------------------------- */
359 static void __init at91sam9g45_map_io(void)
361 at91_init_sram(0, AT91SAM9G45_SRAM_BASE, AT91SAM9G45_SRAM_SIZE);
364 static void __init at91sam9g45_ioremap_registers(void)
366 at91_ioremap_shdwc(AT91SAM9G45_BASE_SHDWC);
367 at91_ioremap_rstc(AT91SAM9G45_BASE_RSTC);
368 at91_ioremap_ramc(0, AT91SAM9G45_BASE_DDRSDRC1, 512);
369 at91_ioremap_ramc(1, AT91SAM9G45_BASE_DDRSDRC0, 512);
370 at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT);
371 at91sam9_ioremap_smc(0, AT91SAM9G45_BASE_SMC);
372 at91_ioremap_matrix(AT91SAM9G45_BASE_MATRIX);
375 static void __init at91sam9g45_initialize(void)
377 arm_pm_idle = at91sam9_idle;
378 arm_pm_restart = at91sam9g45_restart;
380 at91_sysirq_mask_rtc(AT91SAM9G45_BASE_RTC);
381 at91_sysirq_mask_rtt(AT91SAM9G45_BASE_RTT);
383 /* Register GPIO subsystem */
384 at91_gpio_init(at91sam9g45_gpio, 5);
387 /* --------------------------------------------------------------------
388 * Interrupt initialization
389 * -------------------------------------------------------------------- */
392 * The default interrupt priority levels (0 = lowest, 7 = highest).
394 static unsigned int at91sam9g45_default_irq_priority[NR_AIC_IRQS] __initdata = {
395 7, /* Advanced Interrupt Controller (FIQ) */
396 7, /* System Peripherals */
397 1, /* Parallel IO Controller A */
398 1, /* Parallel IO Controller B */
399 1, /* Parallel IO Controller C */
400 1, /* Parallel IO Controller D and E */
402 5, /* USART 0 */
403 5, /* USART 1 */
404 5, /* USART 2 */
405 5, /* USART 3 */
406 0, /* Multimedia Card Interface 0 */
407 6, /* Two-Wire Interface 0 */
408 6, /* Two-Wire Interface 1 */
409 5, /* Serial Peripheral Interface 0 */
410 5, /* Serial Peripheral Interface 1 */
411 4, /* Serial Synchronous Controller 0 */
412 4, /* Serial Synchronous Controller 1 */
413 0, /* Timer Counter 0, 1, 2, 3, 4 and 5 */
414 0, /* Pulse Width Modulation Controller */
415 0, /* Touch Screen Controller */
416 0, /* DMA Controller */
417 2, /* USB Host High Speed port */
418 3, /* LDC Controller */
419 5, /* AC97 Controller */
420 3, /* Ethernet */
421 0, /* Image Sensor Interface */
422 2, /* USB Device High speed port */
423 0, /* AESTDESSHA Crypto HW Accelerators */
424 0, /* Multimedia Card Interface 1 */
426 0, /* Advanced Interrupt Controller (IRQ0) */
429 AT91_SOC_START(at91sam9g45)
430 .map_io = at91sam9g45_map_io,
431 .default_irq_priority = at91sam9g45_default_irq_priority,
432 .extern_irq = (1 << AT91SAM9G45_ID_IRQ0),
433 .ioremap_registers = at91sam9g45_ioremap_registers,
434 .register_clocks = at91sam9g45_register_clocks,
435 .init = at91sam9g45_initialize,
436 AT91_SOC_END