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>
93 lines
1.9 KiB
C
93 lines
1.9 KiB
C
/*
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* linux/arch/arm/mach-w90x900/w90p910.c
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*
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* Based on linux/arch/arm/plat-s3c24xx/s3c244x.c by Ben Dooks
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*
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* Copyright (c) 2008 Nuvoton technology corporation
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* All rights reserved.
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*
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* Wan ZongShun <mcuos.com@gmail.com>
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*
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* W90P910 cpu support
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/serial_8250.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/irq.h>
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#include <mach/hardware.h>
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#include <mach/regs-serial.h>
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#include "cpu.h"
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/* Initial IO mappings */
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static struct map_desc w90p910_iodesc[] __initdata = {
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IODESC_ENT(IRQ),
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IODESC_ENT(GCR),
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IODESC_ENT(UART),
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IODESC_ENT(TIMER),
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IODESC_ENT(EBI),
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/*IODESC_ENT(LCD),*/
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};
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/* Initial serial platform data */
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struct plat_serial8250_port w90p910_uart_data[] = {
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W90X900_8250PORT(UART0),
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};
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struct platform_device w90p910_serial_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = w90p910_uart_data,
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},
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};
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/*Init W90P910 evb io*/
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void __init w90p910_map_io(struct map_desc *mach_desc, int mach_size)
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{
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unsigned long idcode = 0x0;
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iotable_init(w90p910_iodesc, ARRAY_SIZE(w90p910_iodesc));
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idcode = __raw_readl(W90X900PDID);
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if (idcode != W90P910_CPUID)
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printk(KERN_ERR "CPU type 0x%08lx is not W90P910\n", idcode);
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}
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/*Init W90P910 clock*/
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void __init w90p910_init_clocks(int xtal)
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{
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}
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static int __init w90p910_init_cpu(void)
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{
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return 0;
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}
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static int __init w90x900_arch_init(void)
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{
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return w90p910_init_cpu();
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}
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arch_initcall(w90x900_arch_init);
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