Pileus Git - ~andy/linux/blob - arch/arm/mach-at91/board-dt.c

   1 /*
   2  *  Setup code for AT91SAM Evaluation Kits with Device Tree support
   3  *
   4  *  Covers: * AT91SAM9G45-EKES  board
   5  *          * AT91SAM9M10-EKES  board
   6  *          * AT91SAM9M10G45-EK board
   7  *
   8  *  Copyright (C) 2011 Atmel,
   9  *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>
  10  *
  11  * Licensed under GPLv2 or later.
  12  */
  13
  14 #include <linux/types.h>
  15 #include <linux/init.h>
  16 #include <linux/module.h>
  17 #include <linux/gpio.h>
  18 #include <linux/of.h>
  19 #include <linux/of_irq.h>
  20 #include <linux/of_platform.h>
  21
  22 #include <mach/board.h>
  23
  24 #include <asm/setup.h>
  25 #include <asm/irq.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/map.h>
  28 #include <asm/mach/irq.h>
  29
  30 #include "generic.h"
  31
  32
  33 static void __init ek_init_early(void)
  34 {
  35         /* Initialize processor: 12.000 MHz crystal */
  36         at91_initialize(12000000);
  37 }
  38
  39 static const struct of_device_id irq_of_match[] __initconst = {
  40
  41         { .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
  42         { .compatible = "atmel,at91rm9200-gpio", .data = at91_gpio_of_irq_setup },
  43         { .compatible = "atmel,at91sam9x5-gpio", .data = at91_gpio_of_irq_setup },
  44         { /*sentinel*/ }
  45 };
  46
  47 static void __init at91_dt_init_irq(void)
  48 {
  49         of_irq_init(irq_of_match);
  50 }
  51
  52 static void __init at91_dt_device_init(void)
  53 {
  54         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  55 }
  56
  57 static const char *at91_dt_board_compat[] __initdata = {
  58         "atmel,at91sam9m10g45ek",
  59         "atmel,at91sam9x5ek",
  60         "calao,usb-a9g20",
  61         NULL
  62 };
  63
  64 DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
  65         /* Maintainer: Atmel */
  66         .timer          = &at91sam926x_timer,
  67         .map_io         = at91_map_io,
  68         .init_early     = ek_init_early,
  69         .init_irq       = at91_dt_init_irq,
  70         .init_machine   = at91_dt_device_init,
  71         .dt_compat      = at91_dt_board_compat,
  72 MACHINE_END