cns3420vb.c

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/*
 * Cavium Networks CNS3420 Validation Board
 *
 * Copyright 2000 Deep Blue Solutions Ltd
 * Copyright 2008 ARM Limited
 * Copyright 2008 Cavium Networks
 *        Scott Shu
 * Copyright 2010 MontaVista Software, LLC.
 *        Anton Vorontsov <[email protected]>
 *
 * This file is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, Version 2, as
 * published by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/hardware/gic.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/cns3xxx.h>
#include <mach/irqs.h>
#include "core.h"
#include "devices.h"

/*
 * NOR Flash
 */
static struct mtd_partition cns3420_nor_partitions[] = {
    {
        .name       = "uboot",
        .size       = 0x00040000,
        .offset     = 0,
        .mask_flags = MTD_WRITEABLE,
    }, {
        .name       = "kernel",
        .size       = 0x004C0000,
        .offset     = MTDPART_OFS_APPEND,
    }, {
        .name       = "filesystem",
        .size       = 0x7000000,
        .offset     = MTDPART_OFS_APPEND,
    }, {
        .name       = "filesystem2",
        .size       = 0x0AE0000,
        .offset     = MTDPART_OFS_APPEND,
    }, {
        .name       = "ubootenv",
        .size       = MTDPART_SIZ_FULL,
        .offset     = MTDPART_OFS_APPEND,
    },
};

static struct physmap_flash_data cns3420_nor_pdata = {
    .width = 2,
    .parts = cns3420_nor_partitions,
    .nr_parts = ARRAY_SIZE(cns3420_nor_partitions),
};

static struct resource cns3420_nor_res = {
    .start = CNS3XXX_FLASH_BASE,
    .end = CNS3XXX_FLASH_BASE + SZ_128M - 1,
    .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
};

static struct platform_device cns3420_nor_pdev = {
    .name = "physmap-flash",
    .id = 0,
    .resource = &cns3420_nor_res,
    .num_resources = 1,
    .dev = {
        .platform_data = &cns3420_nor_pdata,
    },
};

/*
 * UART
 */
static void __init cns3420_early_serial_setup(void)
{
#ifdef CONFIG_SERIAL_8250_CONSOLE
    static struct uart_port cns3420_serial_port = {
        .membase        = (void __iomem *)CNS3XXX_UART0_BASE_VIRT,
        .mapbase        = CNS3XXX_UART0_BASE,
        .irq            = IRQ_CNS3XXX_UART0,
        .iotype         = UPIO_MEM,
        .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
        .regshift       = 2,
        .uartclk        = 24000000,
        .line           = 0,
        .type           = PORT_16550A,
        .fifosize       = 16,
    };

    early_serial_setup(&cns3420_serial_port);
#endif
}

/*
 * USB
 */
static struct resource cns3xxx_usb_ehci_resources[] = {
    [0] = {
        .start = CNS3XXX_USB_BASE,
        .end   = CNS3XXX_USB_BASE + SZ_16M - 1,
        .flags = IORESOURCE_MEM,
    },
    [1] = {
        .start = IRQ_CNS3XXX_USB_EHCI,
        .flags = IORESOURCE_IRQ,
    },
};

static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);

static struct platform_device cns3xxx_usb_ehci_device = {
    .name          = "cns3xxx-ehci",
    .num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
    .resource      = cns3xxx_usb_ehci_resources,
    .dev           = {
        .dma_mask          = &cns3xxx_usb_ehci_dma_mask,
        .coherent_dma_mask = DMA_BIT_MASK(32),
    },
};

static struct resource cns3xxx_usb_ohci_resources[] = {
    [0] = {
        .start = CNS3XXX_USB_OHCI_BASE,
        .end   = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1,
        .flags = IORESOURCE_MEM,
    },
    [1] = {
        .start = IRQ_CNS3XXX_USB_OHCI,
        .flags = IORESOURCE_IRQ,
    },
};

static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);

static struct platform_device cns3xxx_usb_ohci_device = {
    .name          = "cns3xxx-ohci",
    .num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
    .resource      = cns3xxx_usb_ohci_resources,
    .dev           = {
        .dma_mask          = &cns3xxx_usb_ohci_dma_mask,
        .coherent_dma_mask = DMA_BIT_MASK(32),
    },
};

/*
 * Initialization
 */
static struct platform_device *cns3420_pdevs[] __initdata = {
    &cns3420_nor_pdev,
    &cns3xxx_usb_ehci_device,
    &cns3xxx_usb_ohci_device,
};

static void __init cns3420_init(void)
{
    cns3xxx_l2x0_init();

    platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));

    cns3xxx_ahci_init();
    cns3xxx_sdhci_init();

    pm_power_off = cns3xxx_power_off;
}

static struct map_desc cns3420_io_desc[] __initdata = {
    {
        .virtual    = CNS3XXX_UART0_BASE_VIRT,
        .pfn        = __phys_to_pfn(CNS3XXX_UART0_BASE),
        .length     = SZ_4K,
        .type       = MT_DEVICE,
    },
};

static void __init cns3420_map_io(void)
{
    cns3xxx_map_io();
    iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));

    cns3420_early_serial_setup();
}

MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
    .atag_offset    = 0x100,
    .map_io     = cns3420_map_io,
    .init_irq   = cns3xxx_init_irq,
    .timer      = &cns3xxx_timer,
    .handle_irq = gic_handle_irq,
    .init_machine   = cns3420_init,
    .restart    = cns3xxx_restart,
MACHINE_END