+Index: linux-2.6.30.8/drivers/leds/leds-ifxmips.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.30.8/drivers/leds/leds-ifxmips.c 2009-10-19 21:39:59.000000000 +0200
+@@ -0,0 +1,196 @@
++/*
++ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * Copyright (C) 2006 infineon
++ * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/types.h>
++#include <linux/fs.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
++#include <linux/uaccess.h>
++#include <linux/unistd.h>
++#include <linux/errno.h>
++#include <linux/leds.h>
++#include <linux/delay.h>
++
++#include <ifxmips.h>
++#include <ifxmips_gpio.h>
++#include <ifxmips_pmu.h>
++
++#define DRVNAME "ifxmips_led"
++
++/* might need to be changed depending on shift register used on the pcb */
++#if 1
++#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
++#else
++#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
++#endif
++
++#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ
++
++#define IFXMIPS_LED_GPIO_PORT 0
++
++#define IFXMIPS_MAX_LED 24
++
++struct ifxmips_led {
++ struct led_classdev cdev;
++ u8 bit;
++};
++
++void ifxmips_led_set(unsigned int led)
++{
++ led &= 0xffffff;
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
++}
++EXPORT_SYMBOL(ifxmips_led_set);
++
++void ifxmips_led_clear(unsigned int led)
++{
++ led = ~(led & 0xffffff);
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
++}
++EXPORT_SYMBOL(ifxmips_led_clear);
++
++void ifxmips_led_blink_set(unsigned int led)
++{
++ led &= 0xffffff;
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
++}
++EXPORT_SYMBOL(ifxmips_led_blink_set);
++
++void ifxmips_led_blink_clear(unsigned int led)
++{
++ led = ~(led & 0xffffff);
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0);
++}
++EXPORT_SYMBOL(ifxmips_led_blink_clear);
++
++static void ifxmips_ledapi_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct ifxmips_led *led_dev =
++ container_of(led_cdev, struct ifxmips_led, cdev);
++
++ if (value)
++ ifxmips_led_set(1 << led_dev->bit);
++ else
++ ifxmips_led_clear(1 << led_dev->bit);
++}
++
++void ifxmips_led_setup_gpio(void)
++{
++ int i = 0;
++
++ /* leds are controlled via a shift register
++ we need to setup pins SH,D,ST (4,5,6) to make it work */
++ for (i = 4; i < 7; i++) {
++ ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i);
++ ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i);
++ ifxmips_port_set_dir_out(IFXMIPS_LED_GPIO_PORT, i);
++ ifxmips_port_set_open_drain(IFXMIPS_LED_GPIO_PORT, i);
++ }
++}
++
++static int ifxmips_led_probe(struct platform_device *dev)
++{
++ int i = 0;
++
++ ifxmips_led_setup_gpio();
++
++ ifxmips_w32(0, IFXMIPS_LED_AR);
++ ifxmips_w32(0, IFXMIPS_LED_CPU0);
++ ifxmips_w32(0, IFXMIPS_LED_CPU1);
++ ifxmips_w32(LED_CON0_SWU, IFXMIPS_LED_CON0);
++ ifxmips_w32(0, IFXMIPS_LED_CON1);
++
++ /* setup the clock edge that the shift register is triggered on */
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & ~IFXMIPS_LED_EDGE_MASK,
++ IFXMIPS_LED_CON0);
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_CLK_EDGE,
++ IFXMIPS_LED_CON0);
++
++ /* per default leds 15-0 are set */
++ ifxmips_w32(IFXMIPS_LED_GROUP1 | IFXMIPS_LED_GROUP0, IFXMIPS_LED_CON1);
++
++ /* leds are update periodically by the FPID */
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_UPD_MASK,
++ IFXMIPS_LED_CON1);
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_UPD_SRC_FPI,
++ IFXMIPS_LED_CON1);
++
++ /* set led update speed */
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_MASK,
++ IFXMIPS_LED_CON1);
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_SPEED,
++ IFXMIPS_LED_CON1);
++
++ /* adsl 0 and 1 leds are updated by the arc */
++ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_ADSL_SRC,
++ IFXMIPS_LED_CON0);
++
++ /* per default, the leds are turned on */
++ ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED);
++
++ for (i = 0; i < IFXMIPS_MAX_LED; i++) {
++ struct ifxmips_led *tmp =
++ kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL);
++ tmp->cdev.brightness_set = ifxmips_ledapi_set;
++ tmp->cdev.name = kmalloc(sizeof("ifxmips:led:00"), GFP_KERNEL);
++ sprintf((char *)tmp->cdev.name, "ifxmips:led:%02d", i);
++ tmp->cdev.default_trigger = NULL;
++ tmp->bit = i;
++ led_classdev_register(&dev->dev, &tmp->cdev);
++ }
++
++ return 0;
++}
++
++static int ifxmips_led_remove(struct platform_device *pdev)
++{
++ return 0;
++}
++
++static struct platform_driver ifxmips_led_driver = {
++ .probe = ifxmips_led_probe,
++ .remove = ifxmips_led_remove,
++ .driver = {
++ .name = DRVNAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++int __init ifxmips_led_init(void)
++{
++ int ret = platform_driver_register(&ifxmips_led_driver);
++ if (ret)
++ printk(KERN_INFO
++ "ifxmips_led: Error registering platfom driver!");
++
++ return ret;
++}
++
++void __exit ifxmips_led_exit(void)
++{
++ platform_driver_unregister(&ifxmips_led_driver);
++}
++
++module_init(ifxmips_led_init);
++module_exit(ifxmips_led_exit);
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