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>
18 #include <asm/mach/arch.h>
19 #include <asm/mach/map.h>
20 #include <mach/at91cap9.h>
21 #include <mach/at91_pmc.h>
22 #include <mach/at91_rstc.h>
23 #include <mach/at91_shdwc.h>
28 static struct map_desc at91cap9_io_desc[] __initdata = {
30 .virtual = AT91_VA_BASE_SYS,
31 .pfn = __phys_to_pfn(AT91_BASE_SYS),
35 .virtual = AT91_IO_VIRT_BASE - AT91CAP9_SRAM_SIZE,
36 .pfn = __phys_to_pfn(AT91CAP9_SRAM_BASE),
37 .length = AT91CAP9_SRAM_SIZE,
42 /* --------------------------------------------------------------------
44 * -------------------------------------------------------------------- */
47 * The peripheral clocks.
49 static struct clk pioABCD_clk = {
50 .name = "pioABCD_clk",
51 .pmc_mask = 1 << AT91CAP9_ID_PIOABCD,
52 .type = CLK_TYPE_PERIPHERAL,
54 static struct clk mpb0_clk = {
56 .pmc_mask = 1 << AT91CAP9_ID_MPB0,
57 .type = CLK_TYPE_PERIPHERAL,
59 static struct clk mpb1_clk = {
61 .pmc_mask = 1 << AT91CAP9_ID_MPB1,
62 .type = CLK_TYPE_PERIPHERAL,
64 static struct clk mpb2_clk = {
66 .pmc_mask = 1 << AT91CAP9_ID_MPB2,
67 .type = CLK_TYPE_PERIPHERAL,
69 static struct clk mpb3_clk = {
71 .pmc_mask = 1 << AT91CAP9_ID_MPB3,
72 .type = CLK_TYPE_PERIPHERAL,
74 static struct clk mpb4_clk = {
76 .pmc_mask = 1 << AT91CAP9_ID_MPB4,
77 .type = CLK_TYPE_PERIPHERAL,
79 static struct clk usart0_clk = {
81 .pmc_mask = 1 << AT91CAP9_ID_US0,
82 .type = CLK_TYPE_PERIPHERAL,
84 static struct clk usart1_clk = {
86 .pmc_mask = 1 << AT91CAP9_ID_US1,
87 .type = CLK_TYPE_PERIPHERAL,
89 static struct clk usart2_clk = {
91 .pmc_mask = 1 << AT91CAP9_ID_US2,
92 .type = CLK_TYPE_PERIPHERAL,
94 static struct clk mmc0_clk = {
96 .pmc_mask = 1 << AT91CAP9_ID_MCI0,
97 .type = CLK_TYPE_PERIPHERAL,
99 static struct clk mmc1_clk = {
101 .pmc_mask = 1 << AT91CAP9_ID_MCI1,
102 .type = CLK_TYPE_PERIPHERAL,
104 static struct clk can_clk = {
106 .pmc_mask = 1 << AT91CAP9_ID_CAN,
107 .type = CLK_TYPE_PERIPHERAL,
109 static struct clk twi_clk = {
111 .pmc_mask = 1 << AT91CAP9_ID_TWI,
112 .type = CLK_TYPE_PERIPHERAL,
114 static struct clk spi0_clk = {
116 .pmc_mask = 1 << AT91CAP9_ID_SPI0,
117 .type = CLK_TYPE_PERIPHERAL,
119 static struct clk spi1_clk = {
121 .pmc_mask = 1 << AT91CAP9_ID_SPI1,
122 .type = CLK_TYPE_PERIPHERAL,
124 static struct clk ssc0_clk = {
126 .pmc_mask = 1 << AT91CAP9_ID_SSC0,
127 .type = CLK_TYPE_PERIPHERAL,
129 static struct clk ssc1_clk = {
131 .pmc_mask = 1 << AT91CAP9_ID_SSC1,
132 .type = CLK_TYPE_PERIPHERAL,
134 static struct clk ac97_clk = {
136 .pmc_mask = 1 << AT91CAP9_ID_AC97C,
137 .type = CLK_TYPE_PERIPHERAL,
139 static struct clk tcb_clk = {
141 .pmc_mask = 1 << AT91CAP9_ID_TCB,
142 .type = CLK_TYPE_PERIPHERAL,
144 static struct clk pwm_clk = {
146 .pmc_mask = 1 << AT91CAP9_ID_PWMC,
147 .type = CLK_TYPE_PERIPHERAL,
149 static struct clk macb_clk = {
151 .pmc_mask = 1 << AT91CAP9_ID_EMAC,
152 .type = CLK_TYPE_PERIPHERAL,
154 static struct clk aestdes_clk = {
155 .name = "aestdes_clk",
156 .pmc_mask = 1 << AT91CAP9_ID_AESTDES,
157 .type = CLK_TYPE_PERIPHERAL,
159 static struct clk adc_clk = {
161 .pmc_mask = 1 << AT91CAP9_ID_ADC,
162 .type = CLK_TYPE_PERIPHERAL,
164 static struct clk isi_clk = {
166 .pmc_mask = 1 << AT91CAP9_ID_ISI,
167 .type = CLK_TYPE_PERIPHERAL,
169 static struct clk lcdc_clk = {
171 .pmc_mask = 1 << AT91CAP9_ID_LCDC,
172 .type = CLK_TYPE_PERIPHERAL,
174 static struct clk dma_clk = {
176 .pmc_mask = 1 << AT91CAP9_ID_DMA,
177 .type = CLK_TYPE_PERIPHERAL,
179 static struct clk udphs_clk = {
181 .pmc_mask = 1 << AT91CAP9_ID_UDPHS,
182 .type = CLK_TYPE_PERIPHERAL,
184 static struct clk ohci_clk = {
186 .pmc_mask = 1 << AT91CAP9_ID_UHP,
187 .type = CLK_TYPE_PERIPHERAL,
190 static struct clk *periph_clocks[] __initdata = {
223 * The four programmable clocks.
224 * You must configure pin multiplexing to bring these signals out.
226 static struct clk pck0 = {
228 .pmc_mask = AT91_PMC_PCK0,
229 .type = CLK_TYPE_PROGRAMMABLE,
232 static struct clk pck1 = {
234 .pmc_mask = AT91_PMC_PCK1,
235 .type = CLK_TYPE_PROGRAMMABLE,
238 static struct clk pck2 = {
240 .pmc_mask = AT91_PMC_PCK2,
241 .type = CLK_TYPE_PROGRAMMABLE,
244 static struct clk pck3 = {
246 .pmc_mask = AT91_PMC_PCK3,
247 .type = CLK_TYPE_PROGRAMMABLE,
251 static void __init at91cap9_register_clocks(void)
255 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
256 clk_register(periph_clocks[i]);
264 /* --------------------------------------------------------------------
266 * -------------------------------------------------------------------- */
268 static struct at91_gpio_bank at91cap9_gpio[] = {
270 .id = AT91CAP9_ID_PIOABCD,
272 .clock = &pioABCD_clk,
274 .id = AT91CAP9_ID_PIOABCD,
276 .clock = &pioABCD_clk,
278 .id = AT91CAP9_ID_PIOABCD,
280 .clock = &pioABCD_clk,
282 .id = AT91CAP9_ID_PIOABCD,
284 .clock = &pioABCD_clk,
288 static void at91cap9_reset(void)
290 at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
293 static void at91cap9_poweroff(void)
295 at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
299 /* --------------------------------------------------------------------
300 * AT91CAP9 processor initialization
301 * -------------------------------------------------------------------- */
303 void __init at91cap9_initialize(unsigned long main_clock)
305 /* Map peripherals */
306 iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc));
308 at91_arch_reset = at91cap9_reset;
309 pm_power_off = at91cap9_poweroff;
310 at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
312 /* Init clock subsystem */
313 at91_clock_init(main_clock);
315 /* Register the processor-specific clocks */
316 at91cap9_register_clocks();
318 /* Register GPIO subsystem */
319 at91_gpio_init(at91cap9_gpio, 4);
322 /* --------------------------------------------------------------------
323 * Interrupt initialization
324 * -------------------------------------------------------------------- */
327 * The default interrupt priority levels (0 = lowest, 7 = highest).
329 static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = {
330 7, /* Advanced Interrupt Controller (FIQ) */
331 7, /* System Peripherals */
332 1, /* Parallel IO Controller A, B, C and D */
333 0, /* MP Block Peripheral 0 */
334 0, /* MP Block Peripheral 1 */
335 0, /* MP Block Peripheral 2 */
336 0, /* MP Block Peripheral 3 */
337 0, /* MP Block Peripheral 4 */
341 0, /* Multimedia Card Interface 0 */
342 0, /* Multimedia Card Interface 1 */
344 6, /* Two-Wire Interface */
345 5, /* Serial Peripheral Interface 0 */
346 5, /* Serial Peripheral Interface 1 */
347 4, /* Serial Synchronous Controller 0 */
348 4, /* Serial Synchronous Controller 1 */
349 5, /* AC97 Controller */
350 0, /* Timer Counter 0, 1 and 2 */
351 0, /* Pulse Width Modulation Controller */
353 0, /* Advanced Encryption Standard, Triple DES*/
354 0, /* Analog-to-Digital Converter */
355 0, /* Image Sensor Interface */
356 3, /* LCD Controller */
357 0, /* DMA Controller */
358 2, /* USB Device Port */
359 2, /* USB Host port */
360 0, /* Advanced Interrupt Controller (IRQ0) */
361 0, /* Advanced Interrupt Controller (IRQ1) */
364 void __init at91cap9_init_interrupts(unsigned int priority[NR_AIC_IRQS])
367 priority = at91cap9_default_irq_priority;
369 /* Initialize the AIC interrupt controller */
370 at91_aic_init(priority);
372 /* Enable GPIO interrupts */
373 at91_gpio_irq_setup();