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vulcan-setup.c

/*
 * arch/arm/mach-ixp4xx/vulcan-setup.c
 *
 * Arcom/Eurotech Vulcan board-setup
 *
 * Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
 *
 * based on fsg-setup.c:
 *    Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
 */

#include <linux/if_ether.h>
#include <linux/irq.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/io.h>
#include <linux/w1-gpio.h>
#include <linux/mtd/plat-ram.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>

static struct flash_platform_data vulcan_flash_data = {
      .map_name   = "cfi_probe",
      .width            = 2,
};

static struct resource vulcan_flash_resource = {
      .flags                  = IORESOURCE_MEM,
};

static struct platform_device vulcan_flash = {
      .name             = "IXP4XX-Flash",
      .id               = 0,
      .dev = {
            .platform_data    = &vulcan_flash_data,
      },
      .resource         = &vulcan_flash_resource,
      .num_resources          = 1,
};

static struct platdata_mtd_ram vulcan_sram_data = {
      .mapname    = "Vulcan SRAM",
      .bankwidth  = 1,
};

static struct resource vulcan_sram_resource = {
      .flags                  = IORESOURCE_MEM,
};

static struct platform_device vulcan_sram = {
      .name             = "mtd-ram",
      .id               = 0,
      .dev = {
            .platform_data    = &vulcan_sram_data,
      },
      .resource         = &vulcan_sram_resource,
      .num_resources          = 1,
};

static struct resource vulcan_uart_resources[] = {
      [0] = {
            .start            = IXP4XX_UART1_BASE_PHYS,
            .end        = IXP4XX_UART1_BASE_PHYS + 0x0fff,
            .flags            = IORESOURCE_MEM,
      },
      [1] = {
            .start            = IXP4XX_UART2_BASE_PHYS,
            .end        = IXP4XX_UART2_BASE_PHYS + 0x0fff,
            .flags            = IORESOURCE_MEM,
      },
      [2] = {
            .flags            = IORESOURCE_MEM,
      },
};

static struct plat_serial8250_port vulcan_uart_data[] = {
      [0] = {
            .mapbase    = IXP4XX_UART1_BASE_PHYS,
            .membase    = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
            .irq        = IRQ_IXP4XX_UART1,
            .flags            = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
            .iotype           = UPIO_MEM,
            .regshift   = 2,
            .uartclk    = IXP4XX_UART_XTAL,
      },
      [1] = {
            .mapbase    = IXP4XX_UART2_BASE_PHYS,
            .membase    = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
            .irq        = IRQ_IXP4XX_UART2,
            .flags            = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
            .iotype           = UPIO_MEM,
            .regshift   = 2,
            .uartclk    = IXP4XX_UART_XTAL,
      },
      [2] = {
            .irq        = IXP4XX_GPIO_IRQ(4),
            .irqflags   = IRQF_TRIGGER_LOW,
            .flags            = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
            .iotype           = UPIO_MEM,
            .uartclk    = 1843200,
      },
      [3] = {
            .irq        = IXP4XX_GPIO_IRQ(4),
            .irqflags   = IRQF_TRIGGER_LOW,
            .flags            = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
            .iotype           = UPIO_MEM,
            .uartclk    = 1843200,
      },
      { }
};

static struct platform_device vulcan_uart = {
      .name             = "serial8250",
      .id               = PLAT8250_DEV_PLATFORM,
      .dev = {
            .platform_data    = vulcan_uart_data,
      },
      .resource         = vulcan_uart_resources,
      .num_resources          = ARRAY_SIZE(vulcan_uart_resources),
};

static struct eth_plat_info vulcan_plat_eth[] = {
      [0] = {
            .phy        = 0,
            .rxq        = 3,
            .txreadyq   = 20,
      },
      [1] = {
            .phy        = 1,
            .rxq        = 4,
            .txreadyq   = 21,
      },
};

static struct platform_device vulcan_eth[] = {
      [0] = {
            .name             = "ixp4xx_eth",
            .id               = IXP4XX_ETH_NPEB,
            .dev = {
                  .platform_data    = &vulcan_plat_eth[0],
            },
      },
      [1] = {
            .name             = "ixp4xx_eth",
            .id               = IXP4XX_ETH_NPEC,
            .dev = {
                  .platform_data    = &vulcan_plat_eth[1],
            },
      },
};

static struct resource vulcan_max6369_resource = {
      .flags                  = IORESOURCE_MEM,
};

static struct platform_device vulcan_max6369 = {
      .name             = "max6369_wdt",
      .id               = -1,
      .resource         = &vulcan_max6369_resource,
      .num_resources          = 1,
};

static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
      .pin              = 14,
};

static struct platform_device vulcan_w1_gpio = {
      .name             = "w1-gpio",
      .id               = 0,
      .dev              = {
            .platform_data    = &vulcan_w1_gpio_pdata,
      },
};

static struct platform_device *vulcan_devices[] __initdata = {
      &vulcan_uart,
      &vulcan_flash,
      &vulcan_sram,
      &vulcan_max6369,
      &vulcan_eth[0],
      &vulcan_eth[1],
      &vulcan_w1_gpio,
};

static void __init vulcan_init(void)
{
      ixp4xx_sys_init();

      /* Flash is spread over both CS0 and CS1 */
      vulcan_flash_resource.start    = IXP4XX_EXP_BUS_BASE(0);
      vulcan_flash_resource.end      = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
      *IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN          |
                    IXP4XX_EXP_BUS_STROBE_T(3)  |
                    IXP4XX_EXP_BUS_SIZE(0xF)    |
                    IXP4XX_EXP_BUS_BYTE_RD16    |
                    IXP4XX_EXP_BUS_WR_EN;
      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;

      /* SRAM on CS2, (256kB, 8bit, writable) */
      vulcan_sram_resource.start    = IXP4XX_EXP_BUS_BASE(2);
      vulcan_sram_resource.end      = IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1;
      *IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN          |
                    IXP4XX_EXP_BUS_STROBE_T(1)  |
                    IXP4XX_EXP_BUS_HOLD_T(2)    |
                    IXP4XX_EXP_BUS_SIZE(9)      |
                    IXP4XX_EXP_BUS_SPLT_EN      |
                    IXP4XX_EXP_BUS_WR_EN        |
                    IXP4XX_EXP_BUS_BYTE_EN;

      /* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */
      vulcan_uart_resources[2].start      = IXP4XX_EXP_BUS_BASE(3);
      vulcan_uart_resources[2].end  = IXP4XX_EXP_BUS_BASE(3) + 16 - 1;
      vulcan_uart_data[2].mapbase   = vulcan_uart_resources[2].start;
      vulcan_uart_data[3].mapbase   = vulcan_uart_data[2].mapbase + 8;
      *IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN          |
                    IXP4XX_EXP_BUS_STROBE_T(3)  |
                    IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)|
                    IXP4XX_EXP_BUS_WR_EN        |
                    IXP4XX_EXP_BUS_BYTE_EN;

      /* GPIOS on CS4 (512 bytes, 8bits, writable) */
      *IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN          |
                    IXP4XX_EXP_BUS_WR_EN        |
                    IXP4XX_EXP_BUS_BYTE_EN;

      /* max6369 on CS5 (512 bytes, 8bits, writable) */
      vulcan_max6369_resource.start = IXP4XX_EXP_BUS_BASE(5);
      vulcan_max6369_resource.end   = IXP4XX_EXP_BUS_BASE(5);
      *IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN          |
                    IXP4XX_EXP_BUS_WR_EN        |
                    IXP4XX_EXP_BUS_BYTE_EN;

      platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices));
}

MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
      /* Maintainer: Marc Zyngier <maz@misterjones.org> */
      .map_io           = ixp4xx_map_io,
      .init_irq   = ixp4xx_init_irq,
      .timer            = &ixp4xx_timer,
      .boot_params      = 0x0100,
      .init_machine     = vulcan_init,
MACHINE_END

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