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cpu-db5500.c

/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
 * License terms: GNU General Public License (GPL) version 2
 */

#include <linux/platform_device.h>
#include <linux/amba/bus.h>
#include <linux/io.h>
#include <linux/irq.h>

#include <asm/mach/map.h>

#include <plat/gpio.h>

#include <mach/hardware.h>
#include <mach/devices.h>
#include <mach/setup.h>
#include <mach/irqs.h>

#include "devices-db5500.h"

static struct map_desc u5500_uart_io_desc[] __initdata = {
      __IO_DEV_DESC(U5500_UART0_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_UART2_BASE, SZ_4K),
};

static struct map_desc u5500_io_desc[] __initdata = {
      __IO_DEV_DESC(U5500_GIC_CPU_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_TWD_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_SCU_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K),

      __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
      __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
};

static struct resource mbox0_resources[] = {
      {
            .name = "mbox_peer",
            .start = U5500_MBOX0_PEER_START,
            .end = U5500_MBOX0_PEER_END,
            .flags = IORESOURCE_MEM,
      },
      {
            .name = "mbox_local",
            .start = U5500_MBOX0_LOCAL_START,
            .end = U5500_MBOX0_LOCAL_END,
            .flags = IORESOURCE_MEM,
      },
      {
            .name = "mbox_irq",
            .start = MBOX_PAIR0_VIRT_IRQ,
            .end = MBOX_PAIR0_VIRT_IRQ,
            .flags = IORESOURCE_IRQ,
      }
};

static struct resource mbox1_resources[] = {
      {
            .name = "mbox_peer",
            .start = U5500_MBOX1_PEER_START,
            .end = U5500_MBOX1_PEER_END,
            .flags = IORESOURCE_MEM,
      },
      {
            .name = "mbox_local",
            .start = U5500_MBOX1_LOCAL_START,
            .end = U5500_MBOX1_LOCAL_END,
            .flags = IORESOURCE_MEM,
      },
      {
            .name = "mbox_irq",
            .start = MBOX_PAIR1_VIRT_IRQ,
            .end = MBOX_PAIR1_VIRT_IRQ,
            .flags = IORESOURCE_IRQ,
      }
};

static struct resource mbox2_resources[] = {
      {
            .name = "mbox_peer",
            .start = U5500_MBOX2_PEER_START,
            .end = U5500_MBOX2_PEER_END,
            .flags = IORESOURCE_MEM,
      },
      {
            .name = "mbox_local",
            .start = U5500_MBOX2_LOCAL_START,
            .end = U5500_MBOX2_LOCAL_END,
            .flags = IORESOURCE_MEM,
      },
      {
            .name = "mbox_irq",
            .start = MBOX_PAIR2_VIRT_IRQ,
            .end = MBOX_PAIR2_VIRT_IRQ,
            .flags = IORESOURCE_IRQ,
      }
};

static struct platform_device mbox0_device = {
      .id = 0,
      .name = "mbox",
      .resource = mbox0_resources,
      .num_resources = ARRAY_SIZE(mbox0_resources),
};

static struct platform_device mbox1_device = {
      .id = 1,
      .name = "mbox",
      .resource = mbox1_resources,
      .num_resources = ARRAY_SIZE(mbox1_resources),
};

static struct platform_device mbox2_device = {
      .id = 2,
      .name = "mbox",
      .resource = mbox2_resources,
      .num_resources = ARRAY_SIZE(mbox2_resources),
};

static struct platform_device *u5500_platform_devs[] __initdata = {
      &mbox0_device,
      &mbox1_device,
      &mbox2_device,
};

static resource_size_t __initdata db5500_gpio_base[] = {
      U5500_GPIOBANK0_BASE,
      U5500_GPIOBANK1_BASE,
      U5500_GPIOBANK2_BASE,
      U5500_GPIOBANK3_BASE,
      U5500_GPIOBANK4_BASE,
      U5500_GPIOBANK5_BASE,
      U5500_GPIOBANK6_BASE,
      U5500_GPIOBANK7_BASE,
};

static void __init db5500_add_gpios(void)
{
      struct nmk_gpio_platform_data pdata = {
            /* No custom data yet */
      };

      dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
                   IRQ_DB5500_GPIO0, &pdata);
}

void __init u5500_map_io(void)
{
      /*
       * Map the UARTs early so that the DEBUG_LL stuff continues to work.
       */
      iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc));

      ux500_map_io();

      iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
}

void __init u5500_init_devices(void)
{
      db5500_add_gpios();
      db5500_dma_init();
      db5500_add_rtc();

      platform_add_devices(u5500_platform_devs,
                       ARRAY_SIZE(u5500_platform_devs));
}

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