提交 fb82a3a7 编写于 作者: Y Yoichi Yuasa 提交者: Ralf Baechle

[MIPS] Use platform_device for Cobalt UART

Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
上级 c3543e25
......@@ -2,7 +2,7 @@
# Makefile for the Cobalt micro systems family specific parts of the kernel
#
obj-y := irq.o reset.o setup.o buttons.o
obj-y := buttons.o irq.o reset.o serial.o setup.o
obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_EARLY_PRINTK) += console.o
......
/*
* Registration of Cobalt UART platform device.
*
* Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <cobalt.h>
static struct resource cobalt_uart_resource[] __initdata = {
{
.start = 0x1c800000,
.end = 0x1c800007,
.flags = IORESOURCE_MEM,
},
{
.start = COBALT_SERIAL_IRQ,
.end = COBALT_SERIAL_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct plat_serial8250_port cobalt_serial8250_port[] = {
{
.irq = COBALT_SERIAL_IRQ,
.uartclk = 18432000,
.iotype = UPIO_MEM,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.mapbase = 0x1c800000,
},
{},
};
static __init int cobalt_uart_add(void)
{
struct platform_device *pdev;
int retval;
/*
* Cobalt Qube1 and RAQ1 have no UART.
*/
if (cobalt_board_id <= COBALT_BRD_ID_RAQ1)
return 0;
pdev = platform_device_alloc("serial8250", -1);
if (!pdev)
return -ENOMEM;
pdev->id = PLAT8250_DEV_PLATFORM;
pdev->dev.platform_data = cobalt_serial8250_port;
retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource));
if (retval)
goto err_free_device;
retval = platform_device_add(pdev);
if (retval)
goto err_free_device;
return 0;
err_free_device:
platform_device_put(pdev);
return retval;
}
device_initcall(cobalt_uart_add);
......@@ -13,8 +13,6 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/pm.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
......@@ -27,7 +25,6 @@
extern void cobalt_machine_restart(char *command);
extern void cobalt_machine_halt(void);
extern void cobalt_machine_power_off(void);
extern void cobalt_early_console(void);
int cobalt_board_id;
......@@ -95,7 +92,6 @@ static struct resource cobalt_reserved_resources[] = {
void __init plat_mem_setup(void)
{
static struct uart_port uart;
unsigned int devfn = PCI_DEVFN(COBALT_PCICONF_VIA, 0);
int i;
......@@ -119,21 +115,6 @@ void __init plat_mem_setup(void)
cobalt_board_id = VIA_COBALT_BRD_REG_to_ID(cobalt_board_id);
printk("Cobalt board ID: %d\n", cobalt_board_id);
if (cobalt_board_id > COBALT_BRD_ID_RAQ1) {
#ifdef CONFIG_SERIAL_8250
uart.line = 0;
uart.type = PORT_UNKNOWN;
uart.uartclk = 18432000;
uart.irq = COBALT_SERIAL_IRQ;
uart.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF |
UPF_SKIP_TEST;
uart.iotype = UPIO_MEM;
uart.mapbase = 0x1c800000;
early_serial_setup(&uart);
#endif
}
}
/*
......
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