mirror of https://gitee.com/openkylin/linux.git
157 lines
3.5 KiB
C
157 lines
3.5 KiB
C
/* linux/arch/arm/mach-s3c2410/mach-n30.c
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*
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* Copyright (c) 2003-2005 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* Copyright (c) 2005 Christer Weinigel <christer@weinigel.se>
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*
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* There is a wiki with more information about the n30 port at
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* http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
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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 version 2 as
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* published by the Free Software Foundation.
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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/delay.h>
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#include <linux/device.h>
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#include <linux/kthread.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/hardware.h>
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#include <asm/hardware/iomd.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <asm/arch/regs-serial.h>
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#include <asm/arch/regs-gpio.h>
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#include <asm/arch/iic.h>
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#include <linux/serial_core.h>
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#include "s3c2410.h"
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#include "clock.h"
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#include "devs.h"
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#include "cpu.h"
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static struct map_desc n30_iodesc[] __initdata = {
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/* nothing here yet */
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};
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static struct s3c2410_uartcfg n30_uartcfgs[] = {
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/* Normal serial port */
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = 0x2c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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},
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/* IR port */
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[1] = {
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.hwport = 1,
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.flags = 0,
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.uart_flags = UPF_CONS_FLOW,
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.ucon = 0x2c5,
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.ulcon = 0x43,
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.ufcon = 0x51,
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},
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/* The BlueTooth controller is connected to port 2 */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = 0x2c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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},
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};
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static struct platform_device *n30_devices[] __initdata = {
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&s3c_device_usb,
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&s3c_device_lcd,
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&s3c_device_wdt,
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&s3c_device_i2c,
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&s3c_device_iis,
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&s3c_device_usbgadget,
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};
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static struct s3c2410_platform_i2c n30_i2ccfg = {
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.flags = 0,
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.slave_addr = 0x10,
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.bus_freq = 10*1000,
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.max_freq = 10*1000,
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};
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static struct s3c24xx_board n30_board __initdata = {
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.devices = n30_devices,
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.devices_count = ARRAY_SIZE(n30_devices)
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};
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void __init n30_map_io(void)
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{
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s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
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s3c24xx_init_clocks(0);
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s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
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s3c24xx_set_board(&n30_board);
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}
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void __init n30_init_irq(void)
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{
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s3c24xx_init_irq();
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}
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static int n30_usbstart_thread(void *unused)
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{
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/* Turn off suspend on both USB ports, and switch the
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* selectable USB port to USB device mode. */
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writel(readl(S3C2410_MISCCR) & ~0x00003008, S3C2410_MISCCR);
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/* Turn off the D+ pull up for 3 seconds so that the USB host
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* at the other end will do a rescan of the USB bus. */
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s3c2410_gpio_setpin(S3C2410_GPB3, 0);
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msleep_interruptible(3*HZ);
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s3c2410_gpio_setpin(S3C2410_GPB3, 1);
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return 0;
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}
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void __init n30_init(void)
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{
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s3c_device_i2c.dev.platform_data = &n30_i2ccfg;
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kthread_run(n30_usbstart_thread, NULL, "n30_usbstart");
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}
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MACHINE_START(N30, "Acer-N30")
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/* Maintainer: Christer Weinigel <christer@weinigel.se>, Ben Dooks <ben-linux@fluff.org> */
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.phys_ram = S3C2410_SDRAM_PA,
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.phys_io = S3C2410_PA_UART,
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.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
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.boot_params = S3C2410_SDRAM_PA + 0x100,
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.timer = &s3c24xx_timer,
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.init_machine = n30_init,
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.init_irq = n30_init_irq,
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.map_io = n30_map_io,
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MACHINE_END
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/*
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Local variables:
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compile-command: "make ARCH=arm CROSS_COMPILE=/usr/local/arm/3.3.2/bin/arm-linux- -k -C ../../.."
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c-basic-offset: 8
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End:
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*/
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