forked from Minki/linux
027da01d73
Patch from Ben Dooks The n30 machine file is using a kernel thread to change the state of the USB D+ pull-up resistor, which is not the proper way to do this. Once the usb-gadget support for the 24xx is merge, the proper access method will be added. This patch also removes the problem of using HZ for the msleep calls, from Nishanth Aravamudan. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
147 lines
3.3 KiB
C
147 lines
3.3 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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/* GPB3 is the line that controls the pull-up for the USB D+ line */
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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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/* 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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s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
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S3C2410_MISCCR_USBSUSPND0 |
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S3C2410_MISCCR_USBSUSPND1, 0x0);
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}
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MACHINE_START(N30, "Acer-N30")
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/* Maintainer: Christer Weinigel <christer@weinigel.se>,
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Ben Dooks <ben-linux@fluff.org>
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*/
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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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