2 * arch/arm/mach-at91/at91cap9.c
4 * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
5 * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
6 * Copyright (C) 2007 Atmel Corporation.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
15 #include <linux/module.h>
19 #include <asm/mach/arch.h>
20 #include <asm/mach/map.h>
23 #include <mach/at91cap9.h>
24 #include <mach/at91_pmc.h>
25 #include <mach/at91_rstc.h>
26 #include <mach/at91_shdwc.h>
31 static struct map_desc at91cap9_io_desc[] __initdata = {
33 .virtual = AT91_VA_BASE_SYS,
34 .pfn = __phys_to_pfn(AT91_BASE_SYS),
38 .virtual = AT91_IO_VIRT_BASE - AT91CAP9_SRAM_SIZE,
39 .pfn = __phys_to_pfn(AT91CAP9_SRAM_BASE),
40 .length = AT91CAP9_SRAM_SIZE,
45 /* --------------------------------------------------------------------
47 * -------------------------------------------------------------------- */
50 * The peripheral clocks.
52 static struct clk pioABCD_clk = {
53 .name = "pioABCD_clk",
54 .pmc_mask = 1 << AT91CAP9_ID_PIOABCD,
55 .type = CLK_TYPE_PERIPHERAL,
57 static struct clk mpb0_clk = {
59 .pmc_mask = 1 << AT91CAP9_ID_MPB0,
60 .type = CLK_TYPE_PERIPHERAL,
62 static struct clk mpb1_clk = {
64 .pmc_mask = 1 << AT91CAP9_ID_MPB1,
65 .type = CLK_TYPE_PERIPHERAL,
67 static struct clk mpb2_clk = {
69 .pmc_mask = 1 << AT91CAP9_ID_MPB2,
70 .type = CLK_TYPE_PERIPHERAL,
72 static struct clk mpb3_clk = {
74 .pmc_mask = 1 << AT91CAP9_ID_MPB3,
75 .type = CLK_TYPE_PERIPHERAL,
77 static struct clk mpb4_clk = {
79 .pmc_mask = 1 << AT91CAP9_ID_MPB4,
80 .type = CLK_TYPE_PERIPHERAL,
82 static struct clk usart0_clk = {
84 .pmc_mask = 1 << AT91CAP9_ID_US0,
85 .type = CLK_TYPE_PERIPHERAL,
87 static struct clk usart1_clk = {
89 .pmc_mask = 1 << AT91CAP9_ID_US1,
90 .type = CLK_TYPE_PERIPHERAL,
92 static struct clk usart2_clk = {
94 .pmc_mask = 1 << AT91CAP9_ID_US2,
95 .type = CLK_TYPE_PERIPHERAL,
97 static struct clk mmc0_clk = {
99 .pmc_mask = 1 << AT91CAP9_ID_MCI0,
100 .type = CLK_TYPE_PERIPHERAL,
102 static struct clk mmc1_clk = {
104 .pmc_mask = 1 << AT91CAP9_ID_MCI1,
105 .type = CLK_TYPE_PERIPHERAL,
107 static struct clk can_clk = {
109 .pmc_mask = 1 << AT91CAP9_ID_CAN,
110 .type = CLK_TYPE_PERIPHERAL,
112 static struct clk twi_clk = {
114 .pmc_mask = 1 << AT91CAP9_ID_TWI,
115 .type = CLK_TYPE_PERIPHERAL,
117 static struct clk spi0_clk = {
119 .pmc_mask = 1 << AT91CAP9_ID_SPI0,
120 .type = CLK_TYPE_PERIPHERAL,
122 static struct clk spi1_clk = {
124 .pmc_mask = 1 << AT91CAP9_ID_SPI1,
125 .type = CLK_TYPE_PERIPHERAL,
127 static struct clk ssc0_clk = {
129 .pmc_mask = 1 << AT91CAP9_ID_SSC0,
130 .type = CLK_TYPE_PERIPHERAL,
132 static struct clk ssc1_clk = {
134 .pmc_mask = 1 << AT91CAP9_ID_SSC1,
135 .type = CLK_TYPE_PERIPHERAL,
137 static struct clk ac97_clk = {
139 .pmc_mask = 1 << AT91CAP9_ID_AC97C,
140 .type = CLK_TYPE_PERIPHERAL,
142 static struct clk tcb_clk = {
144 .pmc_mask = 1 << AT91CAP9_ID_TCB,
145 .type = CLK_TYPE_PERIPHERAL,
147 static struct clk pwm_clk = {
149 .pmc_mask = 1 << AT91CAP9_ID_PWMC,
150 .type = CLK_TYPE_PERIPHERAL,
152 static struct clk macb_clk = {
154 .pmc_mask = 1 << AT91CAP9_ID_EMAC,
155 .type = CLK_TYPE_PERIPHERAL,
157 static struct clk aestdes_clk = {
158 .name = "aestdes_clk",
159 .pmc_mask = 1 << AT91CAP9_ID_AESTDES,
160 .type = CLK_TYPE_PERIPHERAL,
162 static struct clk adc_clk = {
164 .pmc_mask = 1 << AT91CAP9_ID_ADC,
165 .type = CLK_TYPE_PERIPHERAL,
167 static struct clk isi_clk = {
169 .pmc_mask = 1 << AT91CAP9_ID_ISI,
170 .type = CLK_TYPE_PERIPHERAL,
172 static struct clk lcdc_clk = {
174 .pmc_mask = 1 << AT91CAP9_ID_LCDC,
175 .type = CLK_TYPE_PERIPHERAL,
177 static struct clk dma_clk = {
179 .pmc_mask = 1 << AT91CAP9_ID_DMA,
180 .type = CLK_TYPE_PERIPHERAL,
182 static struct clk udphs_clk = {
184 .pmc_mask = 1 << AT91CAP9_ID_UDPHS,
185 .type = CLK_TYPE_PERIPHERAL,
187 static struct clk ohci_clk = {
189 .pmc_mask = 1 << AT91CAP9_ID_UHP,
190 .type = CLK_TYPE_PERIPHERAL,
193 static struct clk *periph_clocks[] __initdata = {
226 * The four programmable clocks.
227 * You must configure pin multiplexing to bring these signals out.
229 static struct clk pck0 = {
231 .pmc_mask = AT91_PMC_PCK0,
232 .type = CLK_TYPE_PROGRAMMABLE,
235 static struct clk pck1 = {
237 .pmc_mask = AT91_PMC_PCK1,
238 .type = CLK_TYPE_PROGRAMMABLE,
241 static struct clk pck2 = {
243 .pmc_mask = AT91_PMC_PCK2,
244 .type = CLK_TYPE_PROGRAMMABLE,
247 static struct clk pck3 = {
249 .pmc_mask = AT91_PMC_PCK3,
250 .type = CLK_TYPE_PROGRAMMABLE,
254 static void __init at91cap9_register_clocks(void)
258 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
259 clk_register(periph_clocks[i]);
267 /* --------------------------------------------------------------------
269 * -------------------------------------------------------------------- */
271 static struct at91_gpio_bank at91cap9_gpio[] = {
273 .id = AT91CAP9_ID_PIOABCD,
275 .clock = &pioABCD_clk,
277 .id = AT91CAP9_ID_PIOABCD,
279 .clock = &pioABCD_clk,
281 .id = AT91CAP9_ID_PIOABCD,
283 .clock = &pioABCD_clk,
285 .id = AT91CAP9_ID_PIOABCD,
287 .clock = &pioABCD_clk,
291 static void at91cap9_reset(void)
293 at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
296 static void at91cap9_poweroff(void)
298 at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
302 /* --------------------------------------------------------------------
303 * AT91CAP9 processor initialization
304 * -------------------------------------------------------------------- */
306 void __init at91cap9_initialize(unsigned long main_clock)
308 /* Map peripherals */
309 iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc));
311 at91_arch_reset = at91cap9_reset;
312 pm_power_off = at91cap9_poweroff;
313 at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
315 /* Init clock subsystem */
316 at91_clock_init(main_clock);
318 /* Register the processor-specific clocks */
319 at91cap9_register_clocks();
321 /* Register GPIO subsystem */
322 at91_gpio_init(at91cap9_gpio, 4);
324 /* Remember the silicon revision */
325 if (cpu_is_at91cap9_revB())
327 else if (cpu_is_at91cap9_revC())
331 /* --------------------------------------------------------------------
332 * Interrupt initialization
333 * -------------------------------------------------------------------- */
336 * The default interrupt priority levels (0 = lowest, 7 = highest).
338 static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = {
339 7, /* Advanced Interrupt Controller (FIQ) */
340 7, /* System Peripherals */
341 1, /* Parallel IO Controller A, B, C and D */
342 0, /* MP Block Peripheral 0 */
343 0, /* MP Block Peripheral 1 */
344 0, /* MP Block Peripheral 2 */
345 0, /* MP Block Peripheral 3 */
346 0, /* MP Block Peripheral 4 */
350 0, /* Multimedia Card Interface 0 */
351 0, /* Multimedia Card Interface 1 */
353 6, /* Two-Wire Interface */
354 5, /* Serial Peripheral Interface 0 */
355 5, /* Serial Peripheral Interface 1 */
356 4, /* Serial Synchronous Controller 0 */
357 4, /* Serial Synchronous Controller 1 */
358 5, /* AC97 Controller */
359 0, /* Timer Counter 0, 1 and 2 */
360 0, /* Pulse Width Modulation Controller */
362 0, /* Advanced Encryption Standard, Triple DES*/
363 0, /* Analog-to-Digital Converter */
364 0, /* Image Sensor Interface */
365 3, /* LCD Controller */
366 0, /* DMA Controller */
367 2, /* USB Device Port */
368 2, /* USB Host port */
369 0, /* Advanced Interrupt Controller (IRQ0) */
370 0, /* Advanced Interrupt Controller (IRQ1) */
373 void __init at91cap9_init_interrupts(unsigned int priority[NR_AIC_IRQS])
376 priority = at91cap9_default_irq_priority;
378 /* Initialize the AIC interrupt controller */
379 at91_aic_init(priority);
381 /* Enable GPIO interrupts */
382 at91_gpio_irq_setup();