2 * arch/arm/mach-at91/at91sam9263.c
4 * Copyright (C) 2007 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>
17 #include <asm/mach/arch.h>
18 #include <asm/mach/map.h>
19 #include <mach/at91sam9263.h>
20 #include <mach/at91_pmc.h>
21 #include <mach/at91_rstc.h>
22 #include <mach/at91_shdwc.h>
28 static struct map_desc at91sam9263_sram_desc[] __initdata = {
30 .virtual = AT91_IO_VIRT_BASE - AT91SAM9263_SRAM0_SIZE,
31 .pfn = __phys_to_pfn(AT91SAM9263_SRAM0_BASE),
32 .length = AT91SAM9263_SRAM0_SIZE,
35 .virtual = AT91_IO_VIRT_BASE - AT91SAM9263_SRAM0_SIZE - AT91SAM9263_SRAM1_SIZE,
36 .pfn = __phys_to_pfn(AT91SAM9263_SRAM1_BASE),
37 .length = AT91SAM9263_SRAM1_SIZE,
42 /* --------------------------------------------------------------------
44 * -------------------------------------------------------------------- */
47 * The peripheral clocks.
49 static struct clk pioA_clk = {
51 .pmc_mask = 1 << AT91SAM9263_ID_PIOA,
52 .type = CLK_TYPE_PERIPHERAL,
54 static struct clk pioB_clk = {
56 .pmc_mask = 1 << AT91SAM9263_ID_PIOB,
57 .type = CLK_TYPE_PERIPHERAL,
59 static struct clk pioCDE_clk = {
61 .pmc_mask = 1 << AT91SAM9263_ID_PIOCDE,
62 .type = CLK_TYPE_PERIPHERAL,
64 static struct clk usart0_clk = {
66 .pmc_mask = 1 << AT91SAM9263_ID_US0,
67 .type = CLK_TYPE_PERIPHERAL,
69 static struct clk usart1_clk = {
71 .pmc_mask = 1 << AT91SAM9263_ID_US1,
72 .type = CLK_TYPE_PERIPHERAL,
74 static struct clk usart2_clk = {
76 .pmc_mask = 1 << AT91SAM9263_ID_US2,
77 .type = CLK_TYPE_PERIPHERAL,
79 static struct clk mmc0_clk = {
81 .pmc_mask = 1 << AT91SAM9263_ID_MCI0,
82 .type = CLK_TYPE_PERIPHERAL,
84 static struct clk mmc1_clk = {
86 .pmc_mask = 1 << AT91SAM9263_ID_MCI1,
87 .type = CLK_TYPE_PERIPHERAL,
89 static struct clk can_clk = {
91 .pmc_mask = 1 << AT91SAM9263_ID_CAN,
92 .type = CLK_TYPE_PERIPHERAL,
94 static struct clk twi_clk = {
96 .pmc_mask = 1 << AT91SAM9263_ID_TWI,
97 .type = CLK_TYPE_PERIPHERAL,
99 static struct clk spi0_clk = {
101 .pmc_mask = 1 << AT91SAM9263_ID_SPI0,
102 .type = CLK_TYPE_PERIPHERAL,
104 static struct clk spi1_clk = {
106 .pmc_mask = 1 << AT91SAM9263_ID_SPI1,
107 .type = CLK_TYPE_PERIPHERAL,
109 static struct clk ssc0_clk = {
111 .pmc_mask = 1 << AT91SAM9263_ID_SSC0,
112 .type = CLK_TYPE_PERIPHERAL,
114 static struct clk ssc1_clk = {
116 .pmc_mask = 1 << AT91SAM9263_ID_SSC1,
117 .type = CLK_TYPE_PERIPHERAL,
119 static struct clk ac97_clk = {
121 .pmc_mask = 1 << AT91SAM9263_ID_AC97C,
122 .type = CLK_TYPE_PERIPHERAL,
124 static struct clk tcb_clk = {
126 .pmc_mask = 1 << AT91SAM9263_ID_TCB,
127 .type = CLK_TYPE_PERIPHERAL,
129 static struct clk pwm_clk = {
131 .pmc_mask = 1 << AT91SAM9263_ID_PWMC,
132 .type = CLK_TYPE_PERIPHERAL,
134 static struct clk macb_clk = {
136 .pmc_mask = 1 << AT91SAM9263_ID_EMAC,
137 .type = CLK_TYPE_PERIPHERAL,
139 static struct clk dma_clk = {
141 .pmc_mask = 1 << AT91SAM9263_ID_DMA,
142 .type = CLK_TYPE_PERIPHERAL,
144 static struct clk twodge_clk = {
146 .pmc_mask = 1 << AT91SAM9263_ID_2DGE,
147 .type = CLK_TYPE_PERIPHERAL,
149 static struct clk udc_clk = {
151 .pmc_mask = 1 << AT91SAM9263_ID_UDP,
152 .type = CLK_TYPE_PERIPHERAL,
154 static struct clk isi_clk = {
156 .pmc_mask = 1 << AT91SAM9263_ID_ISI,
157 .type = CLK_TYPE_PERIPHERAL,
159 static struct clk lcdc_clk = {
161 .pmc_mask = 1 << AT91SAM9263_ID_LCDC,
162 .type = CLK_TYPE_PERIPHERAL,
164 static struct clk ohci_clk = {
166 .pmc_mask = 1 << AT91SAM9263_ID_UHP,
167 .type = CLK_TYPE_PERIPHERAL,
170 static struct clk *periph_clocks[] __initdata = {
198 static struct clk_lookup periph_clocks_lookups[] = {
199 CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
200 CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
201 CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.0", &mmc0_clk),
202 CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.1", &mmc1_clk),
203 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
204 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
205 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
208 static struct clk_lookup usart_clocks_lookups[] = {
209 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
210 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
211 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
212 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
216 * The four programmable clocks.
217 * You must configure pin multiplexing to bring these signals out.
219 static struct clk pck0 = {
221 .pmc_mask = AT91_PMC_PCK0,
222 .type = CLK_TYPE_PROGRAMMABLE,
225 static struct clk pck1 = {
227 .pmc_mask = AT91_PMC_PCK1,
228 .type = CLK_TYPE_PROGRAMMABLE,
231 static struct clk pck2 = {
233 .pmc_mask = AT91_PMC_PCK2,
234 .type = CLK_TYPE_PROGRAMMABLE,
237 static struct clk pck3 = {
239 .pmc_mask = AT91_PMC_PCK3,
240 .type = CLK_TYPE_PROGRAMMABLE,
244 static void __init at91sam9263_register_clocks(void)
248 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
249 clk_register(periph_clocks[i]);
251 clkdev_add_table(periph_clocks_lookups,
252 ARRAY_SIZE(periph_clocks_lookups));
253 clkdev_add_table(usart_clocks_lookups,
254 ARRAY_SIZE(usart_clocks_lookups));
262 static struct clk_lookup console_clock_lookup;
264 void __init at91sam9263_set_console_clock(int id)
266 if (id >= ARRAY_SIZE(usart_clocks_lookups))
269 console_clock_lookup.con_id = "usart";
270 console_clock_lookup.clk = usart_clocks_lookups[id].clk;
271 clkdev_add(&console_clock_lookup);
274 /* --------------------------------------------------------------------
276 * -------------------------------------------------------------------- */
278 static struct at91_gpio_bank at91sam9263_gpio[] = {
280 .id = AT91SAM9263_ID_PIOA,
284 .id = AT91SAM9263_ID_PIOB,
288 .id = AT91SAM9263_ID_PIOCDE,
290 .clock = &pioCDE_clk,
292 .id = AT91SAM9263_ID_PIOCDE,
294 .clock = &pioCDE_clk,
296 .id = AT91SAM9263_ID_PIOCDE,
298 .clock = &pioCDE_clk,
302 static void at91sam9263_poweroff(void)
304 at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
308 /* --------------------------------------------------------------------
309 * AT91SAM9263 processor initialization
310 * -------------------------------------------------------------------- */
312 static void __init at91sam9263_map_io(void)
314 iotable_init(at91sam9263_sram_desc, ARRAY_SIZE(at91sam9263_sram_desc));
317 static void __init at91sam9263_initialize(void)
319 at91_arch_reset = at91sam9_alt_reset;
320 pm_power_off = at91sam9263_poweroff;
321 at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
323 /* Register the processor-specific clocks */
324 at91sam9263_register_clocks();
326 /* Register GPIO subsystem */
327 at91_gpio_init(at91sam9263_gpio, 5);
330 /* --------------------------------------------------------------------
331 * Interrupt initialization
332 * -------------------------------------------------------------------- */
335 * The default interrupt priority levels (0 = lowest, 7 = highest).
337 static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
338 7, /* Advanced Interrupt Controller (FIQ) */
339 7, /* System Peripherals */
340 1, /* Parallel IO Controller A */
341 1, /* Parallel IO Controller B */
342 1, /* Parallel IO Controller C, D and E */
348 0, /* Multimedia Card Interface 0 */
349 0, /* Multimedia Card Interface 1 */
351 6, /* Two-Wire Interface */
352 5, /* Serial Peripheral Interface 0 */
353 5, /* Serial Peripheral Interface 1 */
354 4, /* Serial Synchronous Controller 0 */
355 4, /* Serial Synchronous Controller 1 */
356 5, /* AC97 Controller */
357 0, /* Timer Counter 0, 1 and 2 */
358 0, /* Pulse Width Modulation Controller */
361 0, /* 2D Graphic Engine */
362 2, /* USB Device Port */
363 0, /* Image Sensor Interface */
364 3, /* LDC Controller */
365 0, /* DMA Controller */
367 2, /* USB Host port */
368 0, /* Advanced Interrupt Controller (IRQ0) */
369 0, /* Advanced Interrupt Controller (IRQ1) */
372 struct at91_init_soc __initdata at91sam9263_soc = {
373 .map_io = at91sam9263_map_io,
374 .default_irq_priority = at91sam9263_default_irq_priority,
375 .init = at91sam9263_initialize,