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[PATCH] Serial: Split 8250 port table

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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>
This commit is contained in:
Russell King 2005-06-27 11:12:54 +01:00 committed by Russell King
parent addcc4a10f
commit ec9f47cd6a
9 changed files with 357 additions and 32 deletions
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25
drivers/serial/8250.c
View File

@ -77,23 +77,9 @@ static unsigned int share_irqs = SERIAL8250_SHARE_IRQS;
*/
#define is_real_interrupt(irq) ((irq) != 0)
/*
* This converts from our new CONFIG_ symbols to the symbols
* that asm/serial.h expects. You _NEED_ to comment out the
* linux/config.h include contained inside asm/serial.h for
* this to work.
*/
#undef CONFIG_SERIAL_MANY_PORTS
#undef CONFIG_SERIAL_DETECT_IRQ
#undef CONFIG_SERIAL_MULTIPORT
#undef CONFIG_HUB6
#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
#define CONFIG_SERIAL_DETECT_IRQ 1
#endif
#ifdef CONFIG_SERIAL_8250_MULTIPORT
#define CONFIG_SERIAL_MULTIPORT 1
#endif
#ifdef CONFIG_SERIAL_8250_MANY_PORTS
#define CONFIG_SERIAL_MANY_PORTS 1
#endif
@ -2323,10 +2309,11 @@ static int __devinit serial8250_probe(struct device *dev)
{
struct plat_serial8250_port *p = dev->platform_data;
struct uart_port port;
int ret, i;
memset(&port, 0, sizeof(struct uart_port));
for (; p && p->flags != 0; p++) {
for (i = 0; p && p->flags != 0; p++, i++) {
port.iobase = p->iobase;
port.membase = p->membase;
port.irq = p->irq;
@ -2335,10 +2322,16 @@ static int __devinit serial8250_probe(struct device *dev)
port.iotype = p->iotype;
port.flags = p->flags;
port.mapbase = p->mapbase;
port.hub6 = p->hub6;
port.dev = dev;
if (share_irqs)
port.flags |= UPF_SHARE_IRQ;
serial8250_register_port(&port);
ret = serial8250_register_port(&port);
if (ret < 0) {
dev_err(dev, "unable to register port at index %d "
"(IO%lx MEM%lx IRQ%d): %d\n", i,
p->iobase, p->mapbase, p->irq, ret);
}
}
return 0;
}

47
drivers/serial/8250_accent.c Normal file
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@ -0,0 +1,47 @@
/*
* linux/drivers/serial/8250_accent.c
*
* 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 accent_data[] = {
PORT(0x330, 4),
PORT(0x338, 4),
{ },
};
static struct platform_device accent_device = {
.name = "serial8250",
.id = 2,
.dev = {
.platform_data = accent_data,
},
};
static int __init accent_init(void)
{
return platform_device_register(&accent_device);
}
module_init(accent_init);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("8250 serial probe module for Accent Async cards");
MODULE_LICENSE("GPL");

61
drivers/serial/8250_boca.c Normal file
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@ -0,0 +1,61 @@
/*
* linux/drivers/serial/8250_boca.c
*
* 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 boca_data[] = {
PORT(0x100, 12),
PORT(0x108, 12),
PORT(0x110, 12),
PORT(0x118, 12),
PORT(0x120, 12),
PORT(0x128, 12),
PORT(0x130, 12),
PORT(0x138, 12),
PORT(0x140, 12),
PORT(0x148, 12),
PORT(0x150, 12),
PORT(0x158, 12),
PORT(0x160, 12),
PORT(0x168, 12),
PORT(0x170, 12),
PORT(0x178, 12),
{ },
};
static struct platform_device boca_device = {
.name = "serial8250",
.id = 3,
.dev = {
.platform_data = boca_data,
},
};
static int __init boca_init(void)
{
return platform_device_register(&boca_device);
}
module_init(boca_init);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("8250 serial probe module for Boca cards");
MODULE_LICENSE("GPL");

53
drivers/serial/8250_fourport.c Normal file
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@ -0,0 +1,53 @@
/*
* linux/drivers/serial/8250_fourport.c
*
* 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 | UPF_FOURPORT, \
}
static struct plat_serial8250_port fourport_data[] = {
PORT(0x1a0, 9),
PORT(0x1a8, 9),
PORT(0x1b0, 9),
PORT(0x1b8, 9),
PORT(0x2a0, 5),
PORT(0x2a8, 5),
PORT(0x2b0, 5),
PORT(0x2b8, 5),
{ },
};
static struct platform_device fourport_device = {
.name = "serial8250",
.id = 1,
.dev = {
.platform_data = fourport_data,
},
};
static int __init fourport_init(void)
{
return platform_device_register(&fourport_device);
}
module_init(fourport_init);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("8250 serial probe module for AST Fourport cards");
MODULE_LICENSE("GPL");

58
drivers/serial/8250_hub6.c Normal file
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@ -0,0 +1,58 @@
/*
* linux/drivers/serial/8250_hub6.c
*
* 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 HUB6(card,port) \
{ \
.iobase = 0x302, \
.irq = 3, \
.uartclk = 1843200, \
.iotype = UPIO_HUB6, \
.flags = UPF_BOOT_AUTOCONF, \
.hub6 = (card) << 6 | (port) << 3 | 1, \
}
static struct plat_serial8250_port hub6_data[] = {
HUB6(0,0),
HUB6(0,1),
HUB6(0,2),
HUB6(0,3),
HUB6(0,4),
HUB6(0,5),
HUB6(1,0),
HUB6(1,1),
HUB6(1,2),
HUB6(1,3),
HUB6(1,4),
HUB6(1,5),
{ },
};
static struct platform_device hub6_device = {
.name = "serial8250",
.id = 4,
.dev = {
.platform_data = hub6_data,
},
};
static int __init hub6_init(void)
{
return platform_device_register(&hub6_device);
}
module_init(hub6_init);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("8250 serial probe module for Hub6 cards");
MODULE_LICENSE("GPL");

64
drivers/serial/8250_mca.c Normal file
View File

@ -0,0 +1,64 @@
/*
* linux/drivers/serial/8250_mca.c
*
* 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/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mca.h>
#include <linux/serial_8250.h>
/*
* FIXME: Should we be doing AUTO_IRQ here?
*/
#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
#define MCA_FLAGS UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ
#else
#define MCA_FLAGS UPF_BOOT_AUTOCONF | UPF_SKIP_TEST
#endif
#define PORT(_base,_irq) \
{ \
.iobase = _base, \
.irq = _irq, \
.uartclk = 1843200, \
.iotype = UPIO_PORT, \
.flags = MCA_FLAGS, \
}
static struct plat_serial8250_port mca_data[] = {
PORT(0x3220, 3),
PORT(0x3228, 3),
PORT(0x4220, 3),
PORT(0x4228, 3),
PORT(0x5220, 3),
PORT(0x5228, 3),
{ },
};
static struct platform_device mca_device = {
.name = "serial8250",
.id = 5,
.dev = {
.platform_data = mca_data,
},
};
static int __init mca_init(void)
{
if (!MCA_bus)
return -ENODEV;
return platform_device_register(&mca_device);
}
module_init(mca_init);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("8250 serial probe module for MCA ports");
MODULE_LICENSE("GPL");

75
drivers/serial/Kconfig
View File

@ -89,11 +89,11 @@ config SERIAL_8250_NR_UARTS
int "Maximum number of non-legacy 8250/16550 serial ports"
depends on SERIAL_8250
default "4"
---help---
Set this to the number of non-legacy serial ports you want
the driver to support. This includes any ports discovered
via ACPI or PCI enumeration and any ports that may be added
at run-time via hot-plug.
help
Set this to the number of serial ports you want the driver
to support. This includes any ports discovered via ACPI or
PCI enumeration and any ports that may be added at run-time
via hot-plug, or any ISA multi-port serial cards.
config SERIAL_8250_EXTENDED
bool "Extended 8250/16550 serial driver options"
@ -141,31 +141,74 @@ config SERIAL_8250_DETECT_IRQ
If unsure, say N.
config SERIAL_8250_MULTIPORT
bool "Support special multiport boards"
depends on SERIAL_8250_EXTENDED
help
Some multiport serial ports have special ports which are used to
signal when there are any serial ports on the board which need
servicing. Say Y here to enable the serial driver to take advantage
of those special I/O ports.
config SERIAL_8250_RSA
bool "Support RSA serial ports"
depends on SERIAL_8250_EXTENDED
help
::: To be written :::
comment "Non-8250 serial port support"
#
# Multi-port serial cards
#
config SERIAL_8250_FOURPORT
tristate "Support Fourport cards"
depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
help
Say Y here if you have an AST FourPort serial board.
To compile this driver as a module, choose M here: the module
will be called 8250_fourport.
config SERIAL_8250_ACCENT
tristate "Support Accent cards"
depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
help
Say Y here if you have an Accent Async serial board.
To compile this driver as a module, choose M here: the module
will be called 8250_accent.
config SERIAL_8250_BOCA
tristate "Support Boca cards"
depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
help
Say Y here if you have a Boca serial board. Please read the Boca
mini-HOWTO, avaialble from <http://www.tldp.org/docs.html#howto>
To compile this driver as a module, choose M here: the module
will be called 8250_boca.
config SERIAL_8250_HUB6
tristate "Support Hub6 cards"
depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
help
Say Y here if you have a HUB6 serial board.
To compile this driver as a module, choose M here: the module
will be called 8250_hub6.
config SERIAL_8250_MCA
tristate "Support 8250-type ports on MCA buses"
depends on SERIAL_8250 != n && MCA
help
Say Y here if you have a MCA serial ports.
To compile this driver as a module, choose M here: the module
will be called 8250_mca.
config SERIAL_8250_ACORN
tristate "Acorn expansion card serial port support"
depends on ARM && ARCH_ACORN && SERIAL_8250
depends on ARCH_ACORN && SERIAL_8250
help
If you have an Atomwide Serial card or Serial Port card for an Acorn
system, say Y to this option. The driver can handle 1, 2, or 3 port
cards. If unsure, say N.
comment "Non-8250 serial port support"
config SERIAL_AMBA_PL010
tristate "ARM AMBA PL010 serial port support"
depends on ARM_AMBA

5
drivers/serial/Makefile
View File

@ -17,6 +17,11 @@ obj-$(CONFIG_SERIAL_8250) += 8250.o $(serial-8250-y)
obj-$(CONFIG_SERIAL_8250_CS) += serial_cs.o
obj-$(CONFIG_SERIAL_8250_ACORN) += 8250_acorn.o
obj-$(CONFIG_SERIAL_8250_CONSOLE) += 8250_early.o
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_HUB6) += 8250_hub6.o
obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o
obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o

1
include/linux/serial_8250.h
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@ -22,6 +22,7 @@ struct plat_serial8250_port {
unsigned int uartclk; /* UART clock rate */
unsigned char regshift; /* register shift */
unsigned char iotype; /* UPIO_* */
unsigned char hub6;
unsigned int flags; /* UPF_* flags */
};