linux-kernel - Re: [PATCH] Exar quad port serial

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Message-Id: <1161577454.16482.5.camel@rupert>
Date:	Sun, 22 Oct 2006 23:24:13 -0500
From:	Paul B Schroeder <pschroeder@...ogix.com>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Exar quad port serial

Oh yea..  I almost forgot..

Signed-off-by:  Paul B Schroeder <pschroeder@...ogix.com>

On Sun, 2006-10-22 at 15:30 -0500, Paul B Schroeder wrote:
> Okay..  Here it is again with a little more detail:
> 
> ----------------------------------------------------
> diff -urN linux-2.6.19-rc2.orig/drivers/serial/8250_exar_st16c554.c linux-2.6.19-rc2/drivers/serial/8250_exar_st16c554.c
> --- linux-2.6.19-rc2.orig/drivers/serial/8250_exar_st16c554.c	1969-12-31 18:00:00.000000000 -0600
> +++ linux-2.6.19-rc2/drivers/serial/8250_exar_st16c554.c	2006-10-22 14:58:55.000000000 -0500
> @@ -0,0 +1,52 @@
> +/*
> + *  linux/drivers/serial/8250_exar.c
> + *
> + *  Written by Paul B Schroeder < pschroeder "at" uplogix "dot" com >
> + *  Based on 8250_boca.
> + *
> + *  Copyright (C) 2005 Russell King.
> + *  Data taken from include/asm-i386/serial.h
> + *
> + * 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/module.h>
> +#include <linux/init.h>
> +#include <linux/serial_8250.h>
> +
> +#define PORT(_base,_irq)				\
> +	{						\
> +		.iobase		= _base,		\
> +		.irq		= _irq,			\
> +		.uartclk	= 1843200,		\
> +		.iotype		= UPIO_PORT,		\
> +		.flags		= UPF_BOOT_AUTOCONF,	\
> +	}
> +
> +static struct plat_serial8250_port exar_data[] = {
> +	PORT(0x100, 5),
> +	PORT(0x108, 5),
> +	PORT(0x110, 5),
> +	PORT(0x118, 5),
> +	{ },
> +};
> +
> +static struct platform_device exar_device = {
> +	.name			= "serial8250",
> +	.id			= PLAT8250_DEV_EXAR,
> +	.dev			= {
> +		.platform_data	= exar_data,
> +	},
> +};
> +
> +static int __init exar_init(void)
> +{
> +	return platform_device_register(&exar_device);
> +}
> +
> +module_init(exar_init);
> +
> +MODULE_AUTHOR("Paul B Schroeder");
> +MODULE_DESCRIPTION("8250 serial probe module for Exar cards");
> +MODULE_LICENSE("GPL");
> diff -urN linux-2.6.19-rc2.orig/drivers/serial/Kconfig linux-2.6.19-rc2/drivers/serial/Kconfig
> --- linux-2.6.19-rc2.orig/drivers/serial/Kconfig	2006-10-13 11:25:04.000000000 -0500
> +++ linux-2.6.19-rc2/drivers/serial/Kconfig	2006-10-22 15:13:03.000000000 -0500
> @@ -210,6 +210,17 @@
>  	  To compile this driver as a module, choose M here: the module
>  	  will be called 8250_boca.
>  
> +config SERIAL_8250_EXAR_ST16C554
> +	tristate "Support Exar ST16C554/554D Quad UART"
> +	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
> +	help
> +	  The Uplogix Envoy TU301 uses this Exar Quad UART.  If you are
> +	  tinkering with your Envoy TU301, or have a machine with this UART,
> +	  say Y here.
> +
> +	  To compile this driver as a module, choose M here: the module
> +	  will be called 8250_exar_st16c554.
> +
>  config SERIAL_8250_HUB6
>  	tristate "Support Hub6 cards"
>  	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
> diff -urN linux-2.6.19-rc2.orig/drivers/serial/Makefile linux-2.6.19-rc2/drivers/serial/Makefile
> --- linux-2.6.19-rc2.orig/drivers/serial/Makefile	2006-10-13 11:25:04.000000000 -0500
> +++ linux-2.6.19-rc2/drivers/serial/Makefile	2006-10-22 15:14:11.000000000 -0500
> @@ -17,6 +17,7 @@
>  obj-$(CONFIG_SERIAL_8250_FOURPORT) += 8250_fourport.o
>  obj-$(CONFIG_SERIAL_8250_ACCENT) += 8250_accent.o
>  obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o
> +obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o
>  obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o
>  obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o
>  obj-$(CONFIG_SERIAL_8250_AU1X00) += 8250_au1x00.o
> diff -urN linux-2.6.19-rc2.orig/include/linux/serial_8250.h linux-2.6.19-rc2/include/linux/serial_8250.h
> --- linux-2.6.19-rc2.orig/include/linux/serial_8250.h	2006-10-13 11:25:04.000000000 -0500
> +++ linux-2.6.19-rc2/include/linux/serial_8250.h	2006-10-22 15:15:15.000000000 -0500
> @@ -41,6 +41,7 @@
>  	PLAT8250_DEV_FOURPORT,
>  	PLAT8250_DEV_ACCENT,
>  	PLAT8250_DEV_BOCA,
> +	PLAT8250_DEV_EXAR_ST16C554,
>  	PLAT8250_DEV_HUB6,
>  	PLAT8250_DEV_MCA,
>  	PLAT8250_DEV_AU1X00,
> 
> ----------------------------------------------------
> 
> Cheers...Paul...

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