dev-uart.c

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2008 Maxime Bizon <[email protected]>
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <bcm63xx_cpu.h>

static struct resource uart0_resources[] = {
    {
        /* start & end filled at runtime */
        .flags      = IORESOURCE_MEM,
    },
    {
        /* start filled at runtime */
        .flags      = IORESOURCE_IRQ,
    },
};

static struct resource uart1_resources[] = {
    {
        /* start & end filled at runtime */
        .flags      = IORESOURCE_MEM,
    },
    {
        /* start filled at runtime */
        .flags      = IORESOURCE_IRQ,
    },
};

static struct platform_device bcm63xx_uart_devices[] = {
    {
        .name       = "bcm63xx_uart",
        .id     = 0,
        .num_resources  = ARRAY_SIZE(uart0_resources),
        .resource   = uart0_resources,
    },

    {
        .name       = "bcm63xx_uart",
        .id     = 1,
        .num_resources  = ARRAY_SIZE(uart1_resources),
        .resource   = uart1_resources,
    }
};

int __init bcm63xx_uart_register(unsigned int id)
{
    if (id >= ARRAY_SIZE(bcm63xx_uart_devices))
        return -ENODEV;

    if (id == 1 && (!BCMCPU_IS_6358() && !BCMCPU_IS_6368()))
        return -ENODEV;

    if (id == 0) {
        uart0_resources[0].start = bcm63xx_regset_address(RSET_UART0);
        uart0_resources[0].end = uart0_resources[0].start +
            RSET_UART_SIZE - 1;
        uart0_resources[1].start = bcm63xx_get_irq_number(IRQ_UART0);
    }

    if (id == 1) {
        uart1_resources[0].start = bcm63xx_regset_address(RSET_UART1);
        uart1_resources[0].end = uart1_resources[0].start +
            RSET_UART_SIZE - 1;
        uart1_resources[1].start = bcm63xx_get_irq_number(IRQ_UART1);
    }

    return platform_device_register(&bcm63xx_uart_devices[id]);
}