+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",
+ .dev = {
+ .platform_data = &rb750_leds_data,
+ }
+};
+
+static struct platform_device rb750_nand_device = {
+ .name = "rb750-nand",
+ .id = -1,
+};
+
+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);
+