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/*
* arch/arm/mach-ns9xxx/plat-serial8250.c
*
* Copyright (C) 2008 by Digi International Inc.
* All rights reserved.
*
* 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/platform_device.h>
#include <linux/serial_8250.h>
#include <asm/arch/regs-board-a9m9750dev.h>
#include <asm/arch/board.h>
#define DRIVER_NAME "serial8250"
static int __init ns9xxx_plat_serial8250_init(void)
{
struct plat_serial8250_port *pdata;
struct platform_device *pdev;
int ret = -ENOMEM;
int i;
if (!board_is_a9m9750dev())
return -ENODEV;
pdev = platform_device_alloc(DRIVER_NAME, 0);
if (!pdev)
goto err;
pdata = kzalloc(5 * sizeof(*pdata), GFP_KERNEL);
if (!pdata)
goto err;
pdev->dev.platform_data = pdata;
pdata[0].iobase = FPGA_UARTA_BASE;
pdata[1].iobase = FPGA_UARTB_BASE;
pdata[2].iobase = FPGA_UARTC_BASE;
pdata[3].iobase = FPGA_UARTD_BASE;
for (i = 0; i < 4; ++i) {
pdata[i].membase = (void __iomem *)pdata[i].iobase;
pdata[i].mapbase = pdata[i].iobase;
pdata[i].iotype = UPIO_MEM;
pdata[i].uartclk = 18432000;
pdata[i].flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
}
pdata[0].irq = IRQ_FPGA_UARTA;
pdata[1].irq = IRQ_FPGA_UARTB;
pdata[2].irq = IRQ_FPGA_UARTC;
pdata[3].irq = IRQ_FPGA_UARTD;
ret = platform_device_add(pdev);
if (ret) {
err:
platform_device_put(pdev);
printk(KERN_WARNING "Could not add %s (errno=%d)\n",
DRIVER_NAME, ret);
}
return 0;
}
arch_initcall(ns9xxx_plat_serial8250_init);
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