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ec9f47cd6a
Add separate files for the different 8250 ISA-based serial boards. Looking across all the various architectures, it seems reasonable that we can key the availability of the configuration options for these beasts to the bus-related symbols (iow, CONFIG_ISA). We also standardise the base baud/uart clock rate for these boards - I'm sure that isn't architecture specific, but is solely dependent on the crystal fitted on the board (which should be the same no matter what type of machine its fitted into.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
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* linux/drivers/serial/8250_mca.c
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*
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* Copyright (C) 2005 Russell King.
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* Data taken from include/asm-i386/serial.h
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/mca.h>
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#include <linux/serial_8250.h>
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/*
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* FIXME: Should we be doing AUTO_IRQ here?
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*/
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#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
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#define MCA_FLAGS UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ
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#else
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#define MCA_FLAGS UPF_BOOT_AUTOCONF | UPF_SKIP_TEST
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#endif
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#define PORT(_base,_irq) \
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{ \
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.iobase = _base, \
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.irq = _irq, \
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.uartclk = 1843200, \
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.iotype = UPIO_PORT, \
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.flags = MCA_FLAGS, \
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}
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static struct plat_serial8250_port mca_data[] = {
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PORT(0x3220, 3),
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PORT(0x3228, 3),
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PORT(0x4220, 3),
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PORT(0x4228, 3),
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PORT(0x5220, 3),
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PORT(0x5228, 3),
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{ },
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};
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static struct platform_device mca_device = {
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.name = "serial8250",
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.id = 5,
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.dev = {
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.platform_data = mca_data,
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},
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};
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static int __init mca_init(void)
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{
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if (!MCA_bus)
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return -ENODEV;
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return platform_device_register(&mca_device);
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}
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module_init(mca_init);
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MODULE_AUTHOR("Russell King");
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MODULE_DESCRIPTION("8250 serial probe module for MCA ports");
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MODULE_LICENSE("GPL");
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