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_UART0_BASE, SZ_4K),
  26         __IO_DEV_DESC(U5500_UART2_BASE, SZ_4K),
  27         __IO_DEV_DESC(U5500_GIC_CPU_BASE, SZ_4K),
  28         __IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K),
  29         __IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K),
  30         __IO_DEV_DESC(U5500_TWD_BASE, SZ_4K),
  31         __IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K),
  32         __IO_DEV_DESC(U5500_SCU_BASE, SZ_4K),
  33         __IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K),
  34
  35         __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
  36         __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
  37         __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
  38         __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
  39         __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
  40         __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
  41 };
  42
  43 static struct resource mbox0_resources[] = {
  44         {
  45                 .name = "mbox_peer",
  46                 .start = U5500_MBOX0_PEER_START,
  47                 .end = U5500_MBOX0_PEER_END,
  48                 .flags = IORESOURCE_MEM,
  49         },
  50         {
  51                 .name = "mbox_local",
  52                 .start = U5500_MBOX0_LOCAL_START,
  53                 .end = U5500_MBOX0_LOCAL_END,
  54                 .flags = IORESOURCE_MEM,
  55         },
  56         {
  57                 .name = "mbox_irq",
  58                 .start = MBOX_PAIR0_VIRT_IRQ,
  59                 .end = MBOX_PAIR0_VIRT_IRQ,
  60                 .flags = IORESOURCE_IRQ,
  61         }
  62 };
  63
  64 static struct resource mbox1_resources[] = {
  65         {
  66                 .name = "mbox_peer",
  67                 .start = U5500_MBOX1_PEER_START,
  68                 .end = U5500_MBOX1_PEER_END,
  69                 .flags = IORESOURCE_MEM,
  70         },
  71         {
  72                 .name = "mbox_local",
  73                 .start = U5500_MBOX1_LOCAL_START,
  74                 .end = U5500_MBOX1_LOCAL_END,
  75                 .flags = IORESOURCE_MEM,
  76         },
  77         {
  78                 .name = "mbox_irq",
  79                 .start = MBOX_PAIR1_VIRT_IRQ,
  80                 .end = MBOX_PAIR1_VIRT_IRQ,
  81                 .flags = IORESOURCE_IRQ,
  82         }
  83 };
  84
  85 static struct resource mbox2_resources[] = {
  86         {
  87                 .name = "mbox_peer",
  88                 .start = U5500_MBOX2_PEER_START,
  89                 .end = U5500_MBOX2_PEER_END,
  90                 .flags = IORESOURCE_MEM,
  91         },
  92         {
  93                 .name = "mbox_local",
  94                 .start = U5500_MBOX2_LOCAL_START,
  95                 .end = U5500_MBOX2_LOCAL_END,
  96                 .flags = IORESOURCE_MEM,
  97         },
  98         {
  99                 .name = "mbox_irq",
 100                 .start = MBOX_PAIR2_VIRT_IRQ,
 101                 .end = MBOX_PAIR2_VIRT_IRQ,
 102                 .flags = IORESOURCE_IRQ,
 103         }
 104 };
 105
 106 static struct platform_device mbox0_device = {
 107         .id = 0,
 108         .name = "mbox",
 109         .resource = mbox0_resources,
 110         .num_resources = ARRAY_SIZE(mbox0_resources),
 111 };
 112
 113 static struct platform_device mbox1_device = {
 114         .id = 1,
 115         .name = "mbox",
 116         .resource = mbox1_resources,
 117         .num_resources = ARRAY_SIZE(mbox1_resources),
 118 };
 119
 120 static struct platform_device mbox2_device = {
 121         .id = 2,
 122         .name = "mbox",
 123         .resource = mbox2_resources,
 124         .num_resources = ARRAY_SIZE(mbox2_resources),
 125 };
 126
 127 static struct platform_device *u5500_platform_devs[] __initdata = {
 128         &mbox0_device,
 129         &mbox1_device,
 130         &mbox2_device,
 131 };
 132
 133 static resource_size_t __initdata db5500_gpio_base[] = {
 134         U5500_GPIOBANK0_BASE,
 135         U5500_GPIOBANK1_BASE,
 136         U5500_GPIOBANK2_BASE,
 137         U5500_GPIOBANK3_BASE,
 138         U5500_GPIOBANK4_BASE,
 139         U5500_GPIOBANK5_BASE,
 140         U5500_GPIOBANK6_BASE,
 141         U5500_GPIOBANK7_BASE,
 142 };
 143
 144 static void __init db5500_add_gpios(void)
 145 {
 146         struct nmk_gpio_platform_data pdata = {
 147                 /* No custom data yet */
 148         };
 149
 150         dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
 151                          IRQ_DB5500_GPIO0, &pdata);
 152 }
 153
 154 void __init u5500_map_io(void)
 155 {
 156         iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
 157 }
 158
 159 void __init u5500_init_devices(void)
 160 {
 161         db5500_add_gpios();
 162         db5500_dma_init();
 163         db5500_add_rtc();
 164
 165         platform_add_devices(u5500_platform_devs,
 166                              ARRAY_SIZE(u5500_platform_devs));
 167 }