arch/arm/mach-ux500/cpu-db8500.c

   1 /*
   2  * Copyright (C) 2008-2009 ST-Ericsson
   3  *
   4  * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11 #include <linux/types.h>
  12 #include <linux/init.h>
  13 #include <linux/device.h>
  14 #include <linux/amba/bus.h>
  15 #include <linux/irq.h>
  16 #include <linux/gpio.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/io.h>
  19
  20 #include <asm/mach/map.h>
  21 #include <mach/hardware.h>
  22 #include <mach/setup.h>
  23 #include <mach/devices.h>
  24
  25 static struct platform_device *platform_devs[] __initdata = {
  26         &u8500_gpio_devs[0],
  27         &u8500_gpio_devs[1],
  28         &u8500_gpio_devs[2],
  29         &u8500_gpio_devs[3],
  30         &u8500_gpio_devs[4],
  31         &u8500_gpio_devs[5],
  32         &u8500_gpio_devs[6],
  33         &u8500_gpio_devs[7],
  34         &u8500_gpio_devs[8],
  35         &u8500_dma40_device,
  36 };
  37
  38 /* minimum static i/o mapping required to boot U8500 platforms */
  39 static struct map_desc u8500_io_desc[] __initdata = {
  40         __IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
  41         __IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K),
  42         __IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
  43         __IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
  44         __IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
  45 };
  46
  47 static struct map_desc u8500ed_io_desc[] __initdata = {
  48         __IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K),
  49         __IO_DEV_DESC(U8500_CLKRST7_BASE_ED, SZ_8K),
  50 };
  51
  52 static struct map_desc u8500v1_io_desc[] __initdata = {
  53         __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
  54 };
  55
  56 void __init u8500_map_io(void)
  57 {
  58         ux500_map_io();
  59
  60         iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
  61
  62         if (cpu_is_u8500ed())
  63                 iotable_init(u8500ed_io_desc, ARRAY_SIZE(u8500ed_io_desc));
  64         else
  65                 iotable_init(u8500v1_io_desc, ARRAY_SIZE(u8500v1_io_desc));
  66 }
  67
  68 /*
  69  * This function is called from the board init
  70  */
  71 void __init u8500_init_devices(void)
  72 {
  73         ux500_init_devices();
  74
  75         if (cpu_is_u8500ed())
  76                 dma40_u8500ed_fixup();
  77
  78         /* Register the platform devices */
  79         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
  80
  81         return ;
  82 }