17198f2d68
Add W90P910 UART0 support,the W90P910 UART0 is 8250 series. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/*
|
|
* linux/arch/arm/mach-w90x900/w90p910.c
|
|
*
|
|
* Based on linux/arch/arm/plat-s3c24xx/s3c244x.c by Ben Dooks
|
|
*
|
|
* Copyright (c) 2008 Nuvoton technology corporation
|
|
* All rights reserved.
|
|
*
|
|
* Wan ZongShun <mcuos.com@gmail.com>
|
|
*
|
|
* W90P910 cpu support
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/list.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/serial_8250.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/irq.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/regs-serial.h>
|
|
|
|
#include "cpu.h"
|
|
|
|
/* Initial IO mappings */
|
|
|
|
static struct map_desc w90p910_iodesc[] __initdata = {
|
|
IODESC_ENT(IRQ),
|
|
IODESC_ENT(GCR),
|
|
IODESC_ENT(UART),
|
|
IODESC_ENT(TIMER),
|
|
IODESC_ENT(EBI),
|
|
/*IODESC_ENT(LCD),*/
|
|
};
|
|
|
|
/* Initial serial platform data */
|
|
|
|
struct plat_serial8250_port w90p910_uart_data[] = {
|
|
W90X900_8250PORT(UART0),
|
|
};
|
|
|
|
struct platform_device w90p910_serial_device = {
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM,
|
|
.dev = {
|
|
.platform_data = w90p910_uart_data,
|
|
},
|
|
};
|
|
|
|
/*Init W90P910 evb io*/
|
|
|
|
void __init w90p910_map_io(struct map_desc *mach_desc, int mach_size)
|
|
{
|
|
unsigned long idcode = 0x0;
|
|
|
|
iotable_init(w90p910_iodesc, ARRAY_SIZE(w90p910_iodesc));
|
|
|
|
idcode = __raw_readl(W90X900PDID);
|
|
if (idcode != W90P910_CPUID)
|
|
printk(KERN_ERR "CPU type 0x%08lx is not W90P910\n", idcode);
|
|
}
|
|
|
|
/*Init W90P910 clock*/
|
|
|
|
void __init w90p910_init_clocks(int xtal)
|
|
{
|
|
}
|
|
|
|
static int __init w90p910_init_cpu(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int __init w90x900_arch_init(void)
|
|
{
|
|
return w90p910_init_cpu();
|
|
}
|
|
arch_initcall(w90x900_arch_init);
|