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[PATCH] ARM: 2818/1: BAST - Use platform device for SuperIO 16550s

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Patch from Ben Dooks

Use platform device for the 16500 UARTs in the onboard
SuperIO controller.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2005-07-18 10:24:32 +01:00 committed by Russell King
parent f60f700876
commit 65cc3370ef
6 changed files with 37 additions and 90 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
arch/arm/configs/bast_defconfig
View file

@ -561,7 +561,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
#
CONFIG_SERIAL_S3C2410=y
CONFIG_SERIAL_S3C2410_CONSOLE=y
CONFIG_SERIAL_BAST_SIO=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y

1
arch/arm/configs/s3c2410_defconfig
View file

@ -570,7 +570,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
#
CONFIG_SERIAL_S3C2410=y
CONFIG_SERIAL_S3C2410_CONSOLE=y
CONFIG_SERIAL_BAST_SIO=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y

37
arch/arm/mach-s3c2410/mach-bast.c
View file

@ -28,6 +28,7 @@
* 14-Mar-2006 BJD Updated for __iomem changes
* 22-Jun-2006 BJD Added DM9000 platform information
* 28-Jun-2006 BJD Moved pm functionality out to common code
* 17-Jul-2006 BJD Changed to platform device for SuperIO 16550s
*/
#include <linux/kernel.h>
@ -64,6 +65,8 @@
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/serial_8250.h>
#include "clock.h"
#include "devs.h"
#include "cpu.h"
@ -351,6 +354,39 @@ static struct platform_device bast_device_dm9k = {
}
};
/* serial devices */
#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
#define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
#define SERIAL_CLK (1843200)
static struct plat_serial8250_port bast_sio_data[] = {
[0] = {
.mapbase = SERIAL_BASE + 0x2f8,
.irq = IRQ_PCSERIAL1,
.flags = SERIAL_FLAGS,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = SERIAL_CLK,
},
[1] = {
.mapbase = SERIAL_BASE + 0x3f8,
.irq = IRQ_PCSERIAL2,
.flags = SERIAL_FLAGS,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = SERIAL_CLK,
},
{ }
};
static struct platform_device bast_sio = {
.name = "serial8250",
.id = 0,
.dev = {
.platform_data = &bast_sio_data,
},
};
/* Standard BAST devices */
@ -364,6 +400,7 @@ static struct platform_device *bast_devices[] __initdata = {
&s3c_device_nand,
&bast_device_nor,
&bast_device_dm9k,
&bast_sio,
};
static struct clk *bast_clocks[] = {

7
drivers/serial/Kconfig
View file

@ -306,13 +306,6 @@ config SERIAL_S3C2410_CONSOLE
your boot loader about how to pass options to the kernel at
boot time.)
config SERIAL_BAST_SIO
bool "Support for BAST SuperIO serial ports"
depends on ARCH_BAST && SERIAL_8250=y
help
Support for registerin the SuperIO chip on BAST board with
the 8250/16550 uart code.
config SERIAL_DZ
bool "DECstation DZ serial driver"
depends on MACH_DECSTATION && MIPS32

1
drivers/serial/Makefile
View file

@ -44,7 +44,6 @@ obj-$(CONFIG_SERIAL_LH7A40X) += serial_lh7a40x.o
obj-$(CONFIG_SERIAL_AU1X00) += au1x00_uart.o
obj-$(CONFIG_SERIAL_DZ) += dz.o
obj-$(CONFIG_SERIAL_SH_SCI) += sh-sci.o
obj-$(CONFIG_SERIAL_BAST_SIO) += bast_sio.o
obj-$(CONFIG_SERIAL_SGI_L1_CONSOLE) += sn_console.o
obj-$(CONFIG_SERIAL_CPM) += cpm_uart/
obj-$(CONFIG_SERIAL_IMX) += imx.o

80
drivers/serial/bast_sio.c
View file

@ -1,80 +0,0 @@
/* linux/drivers/serial/bast_sio.c
*
* Copyright (c) 2004 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* http://www.simtec.co.uk/products/EB2410ITX/
*
* 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.
*
* Modifications:
* 23-Sep-2004 BJD Added copyright header
* 23-Sep-2004 BJD Added serial port remove code
*/
#include <linux/module.h>
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/serial.h>
#include <asm/mach-types.h>
#include <asm/arch/map.h>
#include <asm/arch/irqs.h>
#include <asm/arch/bast-map.h>
#include <asm/arch/bast-irq.h>
static int __init serial_bast_register(unsigned long port, unsigned int irq)
{
struct serial_struct serial_req;
serial_req.flags = UPF_AUTOPROBE | UPF_SHARE_IRQ;
serial_req.baud_base = BASE_BAUD;
serial_req.irq = irq;
serial_req.io_type = UPIO_MEM;
serial_req.iomap_base = port;
serial_req.iomem_base = ioremap(port, 0x10);
serial_req.iomem_reg_shift = 0;
return register_serial(&serial_req);
}
#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
static int port[2] = { -1, -1 };
static int __init serial_bast_init(void)
{
if (machine_is_bast()) {
port[0] = serial_bast_register(SERIAL_BASE + 0x2f8, IRQ_PCSERIAL1);
port[1] = serial_bast_register(SERIAL_BASE + 0x3f8, IRQ_PCSERIAL2);
}
return 0;
}
static void __exit serial_bast_exit(void)
{
if (port[0] != -1)
unregister_serial(port[0]);
if (port[1] != -1)
unregister_serial(port[1]);
}
module_init(serial_bast_init);
module_exit(serial_bast_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ben Dooks, ben@simtec.co.uk");
MODULE_DESCRIPTION("BAST Onboard Serial setup");