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/*
* MikroTik RouterBOARD 750 support
*
* Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <asm/mach-ar71xx/ar71xx.h>
#include <asm/mach-ar71xx/mach-rb750.h>
#include "machtype.h"
#include "dev-ap91-eth.h"
static struct rb750_led_data rb750_leds[] = {
{
.name = "rb750:green:act",
.mask = RB750_LED_ACT,
.active_low = 1,
}, {
.name = "rb750:green:port1",
.mask = RB750_LED_PORT5,
.active_low = 1,
}, {
.name = "rb750:green:port2",
.mask = RB750_LED_PORT4,
.active_low = 1,
}, {
.name = "rb750:green:port3",
.mask = RB750_LED_PORT3,
.active_low = 1,
}, {
.name = "rb750:green:port4",
.mask = RB750_LED_PORT2,
.active_low = 1,
}, {
.name = "rb750:green:port5",
.mask = RB750_LED_PORT1,
.active_low = 1,
}
};
static struct rb750_led_platform_data rb750_leds_data = {
.num_leds = ARRAY_SIZE(rb750_leds),
.leds = rb750_leds,
};
static struct platform_device rb750_leds_device = {
.name = "leds-rb750",
.id = -1,
.dev = {
.platform_data = &rb750_leds_data,
}
};
int rb750_latch_change(u32 mask_clr, u32 mask_set)
{
static DEFINE_SPINLOCK(lock);
static u32 latch_set = RB750_LED_BITS | RB750_LVC573_LE;
static u32 latch_oe;
static u32 latch_clr;
unsigned long flags;
u32 t;
int ret = 0;
spin_lock_irqsave(&lock, flags);
if ((mask_clr & BIT(31)) != 0 &&
(latch_set & RB750_LVC573_LE) == 0) {
goto unlock;
}
latch_set = (latch_set | mask_set) & ~mask_clr;
latch_clr = (latch_clr | mask_clr) & ~mask_set;
if (latch_oe == 0)
latch_oe = __raw_readl(ar71xx_gpio_base + GPIO_REG_OE);
if (likely(latch_set & RB750_LVC573_LE)) {
void __iomem *base = ar71xx_gpio_base;
t = __raw_readl(base + GPIO_REG_OE);
t |= mask_clr | latch_oe | mask_set;
__raw_writel(t, base + GPIO_REG_OE);
__raw_writel(latch_clr, base + GPIO_REG_CLEAR);
__raw_writel(latch_set, base + GPIO_REG_SET);
} else if (mask_clr & RB750_LVC573_LE) {
void __iomem *base = ar71xx_gpio_base;
latch_oe = __raw_readl(base + GPIO_REG_OE);
__raw_writel(RB750_LVC573_LE, base + GPIO_REG_CLEAR);
/* flush write */
__raw_readl(base + GPIO_REG_CLEAR);
}
ret = 1;
unlock:
spin_unlock_irqrestore(&lock, flags);
return ret;
}
EXPORT_SYMBOL_GPL(rb750_latch_change);
static void __init rb750_setup(void)
{
ar71xx_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
ap91_eth_init(NULL);
platform_device_register(&rb750_leds_device);
}
MIPS_MACHINE(AR71XX_MACH_RB_750, "750i", "MikroTik RouterBOARD 750",
rb750_setup);
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