AR71XX_RESET_REG_PCI_INT_ENABLE
__raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_ENABLE);