arch/arm/mach-at91/board-dt.c

   1 /*
   2  *  Setup code for AT91SAM Evaluation Kits with Device Tree support
   3  *
   4  *  Copyright (C) 2011 Atmel,
   5  *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>
   6  *
   7  * Licensed under GPLv2 or later.
   8  */
   9
  10 #include <linux/types.h>
  11 #include <linux/init.h>
  12 #include <linux/module.h>
  13 #include <linux/gpio.h>
  14 #include <linux/of.h>
  15 #include <linux/of_irq.h>
  16 #include <linux/of_platform.h>
  17
  18 #include <mach/at91_aic.h>
  19
  20 #include <asm/setup.h>
  21 #include <asm/irq.h>
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/map.h>
  24 #include <asm/mach/irq.h>
  25
  26 #include "board.h"
  27 #include "generic.h"
  28
  29
  30 static const struct of_device_id irq_of_match[] __initconst = {
  31
  32         { .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
  33         { .compatible = "atmel,at91rm9200-gpio", .data = at91_gpio_of_irq_setup },
  34         { .compatible = "atmel,at91sam9x5-gpio", .data = at91_gpio_of_irq_setup },
  35         { /*sentinel*/ }
  36 };
  37
  38 static void __init at91_dt_init_irq(void)
  39 {
  40         of_irq_init(irq_of_match);
  41 }
  42
  43 static void __init at91_dt_device_init(void)
  44 {
  45         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  46 }
  47
  48 static const char *at91_dt_board_compat[] __initdata = {
  49         "atmel,at91sam9",
  50         NULL
  51 };
  52
  53 DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
  54         /* Maintainer: Atmel */
  55         .timer          = &at91sam926x_timer,
  56         .map_io         = at91_map_io,
  57         .handle_irq     = at91_aic_handle_irq,
  58         .init_early     = at91_dt_initialize,
  59         .init_irq       = at91_dt_init_irq,
  60         .init_machine   = at91_dt_device_init,
  61         .dt_compat      = at91_dt_board_compat,
  62 MACHINE_END