/*
 * 8250 UART probe driver for the BCM47XX platforms
 * Author: Aurelien Jarno
 *
 * 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) 2007 Aurelien Jarno <aurelien@aurel32.net>
 */

#include <linux/init.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/ssb/ssb.h>
#include <bcm47xx.h>

static struct plat_serial8250_port uart8250_data[5];

static struct platform_device uart8250_device = {
        .name                   = "serial8250",
        .id                     = PLAT8250_DEV_PLATFORM,
        .dev                    = {
                .platform_data  = uart8250_data,
        },
};

#ifdef CONFIG_BCM47XX_SSB
static int __init uart8250_init_ssb(void)
{
        int i;
        struct ssb_mipscore *mcore = &(bcm47xx_bus.ssb.mipscore);

        memset(&uart8250_data, 0,  sizeof(uart8250_data));

        for (i = 0; i < mcore->nr_serial_ports &&
                    i < ARRAY_SIZE(uart8250_data) - 1; i++) {
                struct plat_serial8250_port *p = &(uart8250_data[i]);
                struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]);

                p->mapbase = (unsigned int)ssb_port->regs;
                p->membase = (void *)ssb_port->regs;
                p->irq = ssb_port->irq + 2;
                p->uartclk = ssb_port->baud_base;
                p->regshift = ssb_port->reg_shift;
                p->iotype = UPIO_MEM;
                p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
        }
        return platform_device_register(&uart8250_device);
}
#endif

#ifdef CONFIG_BCM47XX_BCMA
static int __init uart8250_init_bcma(void)
{
        int i;
        struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc);

        memset(&uart8250_data, 0,  sizeof(uart8250_data));

        for (i = 0; i < cc->nr_serial_ports &&
                    i < ARRAY_SIZE(uart8250_data) - 1; i++) {
                struct plat_serial8250_port *p = &(uart8250_data[i]);
                struct bcma_serial_port *bcma_port;
                bcma_port = &(cc->serial_ports[i]);

                p->mapbase = (unsigned int)bcma_port->regs;
                p->membase = (void *)bcma_port->regs;
                p->irq = bcma_port->irq;
                p->uartclk = bcma_port->baud_base;
                p->regshift = bcma_port->reg_shift;
                p->iotype = UPIO_MEM;
                p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
        }
        return platform_device_register(&uart8250_device);
}
#endif

static int __init uart8250_init(void)
{
        switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
        case BCM47XX_BUS_TYPE_SSB:
                return uart8250_init_ssb();
#endif
#ifdef CONFIG_BCM47XX_BCMA
        case BCM47XX_BUS_TYPE_BCMA:
                return uart8250_init_bcma();
#endif
        }
        return -EINVAL;
}
device_initcall(uart8250_init);