platform.c

Go to the documentation of this file.

/*
 * Platform device support for NXP PNX8550 SoCs
 *
 * Copyright 2005, Embedded Alley Solutions, Inc
 *
 * Based on arch/mips/au1000/common/platform.c
 * Platform device support for Au1x00 SoCs.
 *
 * Copyright 2004, Matt Porter <[email protected]>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/resource.h>
#include <linux/serial.h>
#include <linux/serial_pnx8xxx.h>
#include <linux/platform_device.h>

#include <int.h>
#include <usb.h>
#include <uart.h>

static struct resource pnx8550_usb_ohci_resources[] = {
    [0] = {
        .start      = PNX8550_USB_OHCI_OP_BASE,
        .end        = PNX8550_USB_OHCI_OP_BASE +
                  PNX8550_USB_OHCI_OP_LEN,
        .flags      = IORESOURCE_MEM,
    },
    [1] = {
        .start      = PNX8550_INT_USB,
        .end        = PNX8550_INT_USB,
        .flags      = IORESOURCE_IRQ,
    },
};

static struct resource pnx8550_uart_resources[] = {
    [0] = {
        .start      = PNX8550_UART_PORT0,
        .end        = PNX8550_UART_PORT0 + 0xfff,
        .flags      = IORESOURCE_MEM,
    },
    [1] = {
        .start      = PNX8550_UART_INT(0),
        .end        = PNX8550_UART_INT(0),
        .flags      = IORESOURCE_IRQ,
    },
    [2] = {
        .start      = PNX8550_UART_PORT1,
        .end        = PNX8550_UART_PORT1 + 0xfff,
        .flags      = IORESOURCE_MEM,
    },
    [3] = {
        .start      = PNX8550_UART_INT(1),
        .end        = PNX8550_UART_INT(1),
        .flags      = IORESOURCE_IRQ,
    },
};

struct pnx8xxx_port pnx8xxx_ports[] = {
    [0] = {
        .port   = {
            .type       = PORT_PNX8XXX,
            .iotype     = UPIO_MEM,
            .membase    = (void __iomem *)PNX8550_UART_PORT0,
            .mapbase    = PNX8550_UART_PORT0,
            .irq        = PNX8550_UART_INT(0),
            .uartclk    = 3692300,
            .fifosize   = 16,
            .flags      = UPF_BOOT_AUTOCONF,
            .line       = 0,
        },
    },
    [1] = {
        .port   = {
            .type       = PORT_PNX8XXX,
            .iotype     = UPIO_MEM,
            .membase    = (void __iomem *)PNX8550_UART_PORT1,
            .mapbase    = PNX8550_UART_PORT1,
            .irq        = PNX8550_UART_INT(1),
            .uartclk    = 3692300,
            .fifosize   = 16,
            .flags      = UPF_BOOT_AUTOCONF,
            .line       = 1,
        },
    },
};

/* The dmamask must be set for OHCI to work */
static u64 ohci_dmamask = DMA_BIT_MASK(32);

static u64 uart_dmamask = DMA_BIT_MASK(32);

static struct platform_device pnx8550_usb_ohci_device = {
    .name       = "pnx8550-ohci",
    .id     = -1,
    .dev = {
        .dma_mask       = &ohci_dmamask,
        .coherent_dma_mask  = DMA_BIT_MASK(32),
    },
    .num_resources  = ARRAY_SIZE(pnx8550_usb_ohci_resources),
    .resource   = pnx8550_usb_ohci_resources,
};

static struct platform_device pnx8550_uart_device = {
    .name       = "pnx8xxx-uart",
    .id     = -1,
    .dev = {
        .dma_mask       = &uart_dmamask,
        .coherent_dma_mask  = DMA_BIT_MASK(32),
        .platform_data = pnx8xxx_ports,
    },
    .num_resources  = ARRAY_SIZE(pnx8550_uart_resources),
    .resource   = pnx8550_uart_resources,
};

static struct platform_device *pnx8550_platform_devices[] __initdata = {
    &pnx8550_usb_ohci_device,
    &pnx8550_uart_device,
};

static int __init pnx8550_platform_init(void)
{
    return platform_add_devices(pnx8550_platform_devices,
                        ARRAY_SIZE(pnx8550_platform_devices));
}

arch_initcall(pnx8550_platform_init);