arch/arm/mach-ux500/cpu-db5500.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
   5  * License terms: GNU General Public License (GPL) version 2
   6  */
   7
   8 #include <linux/platform_device.h>
   9 #include <linux/amba/bus.h>
  10 #include <linux/io.h>
  11 #include <linux/irq.h>
  12
  13 #include <asm/mach/map.h>
  14
  15 #include <plat/gpio.h>
  16
  17 #include <mach/hardware.h>
  18 #include <mach/devices.h>
  19 #include <mach/setup.h>
  20 #include <mach/irqs.h>
  21
  22 #include "devices-db5500.h"
  23
  24 static struct map_desc u5500_io_desc[] __initdata = {
  25         __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
  26         __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
  27         __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
  28         __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
  29         __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
  30         __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
  31 };
  32
  33 static struct resource mbox0_resources[] = {
  34         {
  35                 .name = "mbox_peer",
  36                 .start = U5500_MBOX0_PEER_START,
  37                 .end = U5500_MBOX0_PEER_END,
  38                 .flags = IORESOURCE_MEM,
  39         },
  40         {
  41                 .name = "mbox_local",
  42                 .start = U5500_MBOX0_LOCAL_START,
  43                 .end = U5500_MBOX0_LOCAL_END,
  44                 .flags = IORESOURCE_MEM,
  45         },
  46         {
  47                 .name = "mbox_irq",
  48                 .start = MBOX_PAIR0_VIRT_IRQ,
  49                 .end = MBOX_PAIR0_VIRT_IRQ,
  50                 .flags = IORESOURCE_IRQ,
  51         }
  52 };
  53
  54 static struct resource mbox1_resources[] = {
  55         {
  56                 .name = "mbox_peer",
  57                 .start = U5500_MBOX1_PEER_START,
  58                 .end = U5500_MBOX1_PEER_END,
  59                 .flags = IORESOURCE_MEM,
  60         },
  61         {
  62                 .name = "mbox_local",
  63                 .start = U5500_MBOX1_LOCAL_START,
  64                 .end = U5500_MBOX1_LOCAL_END,
  65                 .flags = IORESOURCE_MEM,
  66         },
  67         {
  68                 .name = "mbox_irq",
  69                 .start = MBOX_PAIR1_VIRT_IRQ,
  70                 .end = MBOX_PAIR1_VIRT_IRQ,
  71                 .flags = IORESOURCE_IRQ,
  72         }
  73 };
  74
  75 static struct resource mbox2_resources[] = {
  76         {
  77                 .name = "mbox_peer",
  78                 .start = U5500_MBOX2_PEER_START,
  79                 .end = U5500_MBOX2_PEER_END,
  80                 .flags = IORESOURCE_MEM,
  81         },
  82         {
  83                 .name = "mbox_local",
  84                 .start = U5500_MBOX2_LOCAL_START,
  85                 .end = U5500_MBOX2_LOCAL_END,
  86                 .flags = IORESOURCE_MEM,
  87         },
  88         {
  89                 .name = "mbox_irq",
  90                 .start = MBOX_PAIR2_VIRT_IRQ,
  91                 .end = MBOX_PAIR2_VIRT_IRQ,
  92                 .flags = IORESOURCE_IRQ,
  93         }
  94 };
  95
  96 static struct platform_device mbox0_device = {
  97         .id = 0,
  98         .name = "mbox",
  99         .resource = mbox0_resources,
 100         .num_resources = ARRAY_SIZE(mbox0_resources),
 101 };
 102
 103 static struct platform_device mbox1_device = {
 104         .id = 1,
 105         .name = "mbox",
 106         .resource = mbox1_resources,
 107         .num_resources = ARRAY_SIZE(mbox1_resources),
 108 };
 109
 110 static struct platform_device mbox2_device = {
 111         .id = 2,
 112         .name = "mbox",
 113         .resource = mbox2_resources,
 114         .num_resources = ARRAY_SIZE(mbox2_resources),
 115 };
 116
 117 static struct platform_device *u5500_platform_devs[] __initdata = {
 118         &mbox0_device,
 119         &mbox1_device,
 120         &mbox2_device,
 121 };
 122
 123 static resource_size_t __initdata db5500_gpio_base[] = {
 124         U5500_GPIOBANK0_BASE,
 125         U5500_GPIOBANK1_BASE,
 126         U5500_GPIOBANK2_BASE,
 127         U5500_GPIOBANK3_BASE,
 128         U5500_GPIOBANK4_BASE,
 129         U5500_GPIOBANK5_BASE,
 130         U5500_GPIOBANK6_BASE,
 131         U5500_GPIOBANK7_BASE,
 132 };
 133
 134 static void __init db5500_add_gpios(void)
 135 {
 136         struct nmk_gpio_platform_data pdata = {
 137                 /* No custom data yet */
 138         };
 139
 140         dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
 141                          IRQ_DB5500_GPIO0, &pdata);
 142 }
 143
 144 void __init u5500_map_io(void)
 145 {
 146         ux500_map_io();
 147
 148         iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
 149 }
 150
 151 void __init u5500_init_devices(void)
 152 {
 153         db5500_add_gpios();
 154         db5500_dma_init();
 155         db5500_add_rtc();
 156
 157         platform_add_devices(u5500_platform_devs,
 158                              ARRAY_SIZE(u5500_platform_devs));
 159 }