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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/wrppmc/serial.c
10820 views
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/*

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 *  Registration of WRPPMC UART platform device.

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 *

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 *  Copyright (C) 2007  Yoichi Yuasa <[email protected]>

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 *

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 *  This program is free software; you can redistribute it and/or modify

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 *  it under the terms of the GNU General Public License as published by

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 *  the Free Software Foundation; either version 2 of the License, or

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 *  (at your option) any later version.

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 *

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 *  This program is distributed in the hope that it will be useful,

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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 *  GNU General Public License for more details.

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 *

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 *  You should have received a copy of the GNU General Public License

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 *  along with this program; if not, write to the Free Software

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 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

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 */

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#include <linux/errno.h>

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#include <linux/init.h>

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#include <linux/ioport.h>

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#include <linux/platform_device.h>

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#include <linux/serial_8250.h>

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#include <asm/gt64120.h>

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static struct resource wrppmc_uart_resource[] __initdata = {

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	{

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		.start	= WRPPMC_UART16550_BASE,

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		.end	= WRPPMC_UART16550_BASE + 7,

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		.flags	= IORESOURCE_MEM,

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	},

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	{

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		.start	= WRPPMC_UART16550_IRQ,

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		.end	= WRPPMC_UART16550_IRQ,

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		.flags	= IORESOURCE_IRQ,

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	},

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};

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static struct plat_serial8250_port wrppmc_serial8250_port[] = {

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	{

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		.irq		= WRPPMC_UART16550_IRQ,

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		.uartclk	= WRPPMC_UART16550_CLOCK,

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		.iotype		= UPIO_MEM,

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		.flags		= UPF_IOREMAP | UPF_SKIP_TEST,

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		.mapbase	= WRPPMC_UART16550_BASE,

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	},

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	{},

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};

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static __init int wrppmc_uart_add(void)

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{

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	struct platform_device *pdev;

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	int retval;

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	pdev = platform_device_alloc("serial8250", -1);

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	if (!pdev)

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		return -ENOMEM;

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	pdev->id = PLAT8250_DEV_PLATFORM;

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	pdev->dev.platform_data = wrppmc_serial8250_port;

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	retval = platform_device_add_resources(pdev, wrppmc_uart_resource,

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					ARRAY_SIZE(wrppmc_uart_resource));

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	if (retval)

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		goto err_free_device;

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	retval = platform_device_add(pdev);

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	if (retval)

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		goto err_free_device;

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	return 0;

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err_free_device:

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	platform_device_put(pdev);

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	return retval;

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}

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device_initcall(wrppmc_uart_add);

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