uart.c

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/*
 * arch/arm/mach-iop33x/uart.c
 *
 * Author: Dave Jiang ([email protected])
 * Copyright (C) 2004 Intel Corporation.
 *
 * This program 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/mm.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/mach/map.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <mach/hardware.h>
#include <asm/hardware/iop3xx.h>
#include <asm/mach/arch.h>

#define IOP33X_UART_XTAL 33334000

static struct plat_serial8250_port iop33x_uart0_data[] = {
    {
        .membase    = (char *)IOP33X_UART0_VIRT,
        .mapbase    = IOP33X_UART0_PHYS,
        .irq        = IRQ_IOP33X_UART0,
        .uartclk    = IOP33X_UART_XTAL,
        .regshift   = 2,
        .iotype     = UPIO_MEM,
        .flags      = UPF_SKIP_TEST,
    },
    { },
};

static struct resource iop33x_uart0_resources[] = {
    [0] = {
        .start  = IOP33X_UART0_PHYS,
        .end    = IOP33X_UART0_PHYS + 0x3f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = IRQ_IOP33X_UART0,
        .end    = IRQ_IOP33X_UART0,
        .flags  = IORESOURCE_IRQ,
    },
};

struct platform_device iop33x_uart0_device = {
    .name       = "serial8250",
    .id     = PLAT8250_DEV_PLATFORM,
    .dev        = {
        .platform_data      = iop33x_uart0_data,
    },
    .num_resources  = 2,
    .resource   = iop33x_uart0_resources,
};


static struct resource iop33x_uart1_resources[] = {
    [0] = {
        .start  = IOP33X_UART1_PHYS,
        .end    = IOP33X_UART1_PHYS + 0x3f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = IRQ_IOP33X_UART1,
        .end    = IRQ_IOP33X_UART1,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct plat_serial8250_port iop33x_uart1_data[] = {
    {
        .membase    = (char *)IOP33X_UART1_VIRT,
        .mapbase    = IOP33X_UART1_PHYS,
        .irq        = IRQ_IOP33X_UART1,
        .uartclk    = IOP33X_UART_XTAL,
        .regshift   = 2,
        .iotype     = UPIO_MEM,
        .flags      = UPF_SKIP_TEST,
    },
    { },
};

struct platform_device iop33x_uart1_device = {
    .name       = "serial8250",
    .id     = PLAT8250_DEV_PLATFORM1,
    .dev        = {
        .platform_data      = iop33x_uart1_data,
    },
    .num_resources  = 2,
    .resource   = iop33x_uart1_resources,
};