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_uart_io_desc[] __initdata = {
  25         __IO_DEV_DESC(U5500_UART0_BASE, SZ_4K),
  26         __IO_DEV_DESC(U5500_UART2_BASE, SZ_4K),
  27 };
  28
  29 static struct map_desc u5500_io_desc[] __initdata = {
  30         __IO_DEV_DESC(U5500_GIC_CPU_BASE, SZ_4K),
  31         __IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K),
  32         __IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K),
  33         __IO_DEV_DESC(U5500_TWD_BASE, SZ_4K),
  34         __IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K),
  35         __IO_DEV_DESC(U5500_SCU_BASE, SZ_4K),
  36         __IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K),
  37
  38         __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
  39         __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
  40         __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
  41         __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
  42         __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
  43         __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
  44 };
  45
  46 static struct resource mbox0_resources[] = {
  47         {
  48                 .name = "mbox_peer",
  49                 .start = U5500_MBOX0_PEER_START,
  50                 .end = U5500_MBOX0_PEER_END,
  51                 .flags = IORESOURCE_MEM,
  52         },
  53         {
  54                 .name = "mbox_local",
  55                 .start = U5500_MBOX0_LOCAL_START,
  56                 .end = U5500_MBOX0_LOCAL_END,
  57                 .flags = IORESOURCE_MEM,
  58         },
  59         {
  60                 .name = "mbox_irq",
  61                 .start = MBOX_PAIR0_VIRT_IRQ,
  62                 .end = MBOX_PAIR0_VIRT_IRQ,
  63                 .flags = IORESOURCE_IRQ,
  64         }
  65 };
  66
  67 static struct resource mbox1_resources[] = {
  68         {
  69                 .name = "mbox_peer",
  70                 .start = U5500_MBOX1_PEER_START,
  71                 .end = U5500_MBOX1_PEER_END,
  72                 .flags = IORESOURCE_MEM,
  73         },
  74         {
  75                 .name = "mbox_local",
  76                 .start = U5500_MBOX1_LOCAL_START,
  77                 .end = U5500_MBOX1_LOCAL_END,
  78                 .flags = IORESOURCE_MEM,
  79         },
  80         {
  81                 .name = "mbox_irq",
  82                 .start = MBOX_PAIR1_VIRT_IRQ,
  83                 .end = MBOX_PAIR1_VIRT_IRQ,
  84                 .flags = IORESOURCE_IRQ,
  85         }
  86 };
  87
  88 static struct resource mbox2_resources[] = {
  89         {
  90                 .name = "mbox_peer",
  91                 .start = U5500_MBOX2_PEER_START,
  92                 .end = U5500_MBOX2_PEER_END,
  93                 .flags = IORESOURCE_MEM,
  94         },
  95         {
  96                 .name = "mbox_local",
  97                 .start = U5500_MBOX2_LOCAL_START,
  98                 .end = U5500_MBOX2_LOCAL_END,
  99                 .flags = IORESOURCE_MEM,
 100         },
 101         {
 102                 .name = "mbox_irq",
 103                 .start = MBOX_PAIR2_VIRT_IRQ,
 104                 .end = MBOX_PAIR2_VIRT_IRQ,
 105                 .flags = IORESOURCE_IRQ,
 106         }
 107 };
 108
 109 static struct platform_device mbox0_device = {
 110         .id = 0,
 111         .name = "mbox",
 112         .resource = mbox0_resources,
 113         .num_resources = ARRAY_SIZE(mbox0_resources),
 114 };
 115
 116 static struct platform_device mbox1_device = {
 117         .id = 1,
 118         .name = "mbox",
 119         .resource = mbox1_resources,
 120         .num_resources = ARRAY_SIZE(mbox1_resources),
 121 };
 122
 123 static struct platform_device mbox2_device = {
 124         .id = 2,
 125         .name = "mbox",
 126         .resource = mbox2_resources,
 127         .num_resources = ARRAY_SIZE(mbox2_resources),
 128 };
 129
 130 static struct platform_device *u5500_platform_devs[] __initdata = {
 131         &mbox0_device,
 132         &mbox1_device,
 133         &mbox2_device,
 134 };
 135
 136 static resource_size_t __initdata db5500_gpio_base[] = {
 137         U5500_GPIOBANK0_BASE,
 138         U5500_GPIOBANK1_BASE,
 139         U5500_GPIOBANK2_BASE,
 140         U5500_GPIOBANK3_BASE,
 141         U5500_GPIOBANK4_BASE,
 142         U5500_GPIOBANK5_BASE,
 143         U5500_GPIOBANK6_BASE,
 144         U5500_GPIOBANK7_BASE,
 145 };
 146
 147 static void __init db5500_add_gpios(void)
 148 {
 149         struct nmk_gpio_platform_data pdata = {
 150                 /* No custom data yet */
 151         };
 152
 153         dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
 154                          IRQ_DB5500_GPIO0, &pdata);
 155 }
 156
 157 void __init u5500_map_io(void)
 158 {
 159         /*
 160          * Map the UARTs early so that the DEBUG_LL stuff continues to work.
 161          */
 162         iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc));
 163
 164         ux500_map_io();
 165
 166         iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
 167 }
 168
 169 void __init u5500_init_devices(void)
 170 {
 171         db5500_add_gpios();
 172         db5500_dma_init();
 173         db5500_add_rtc();
 174
 175         platform_add_devices(u5500_platform_devs,
 176                              ARRAY_SIZE(u5500_platform_devs));
 177 }