irqchip/sun4i: Move IC specific register offsets to struct
This patch moves IC specific register offsets to sun4i_irq_chip_data struct in order to support different chips. Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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@ -28,12 +28,16 @@
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#define SUN4I_IRQ_NMI_CTRL_REG 0x0c
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#define SUN4I_IRQ_PENDING_REG(x) (0x10 + 0x4 * x)
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#define SUN4I_IRQ_FIQ_PENDING_REG(x) (0x20 + 0x4 * x)
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#define SUN4I_IRQ_ENABLE_REG(x) (0x40 + 0x4 * x)
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#define SUN4I_IRQ_MASK_REG(x) (0x50 + 0x4 * x)
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#define SUN4I_IRQ_ENABLE_REG(data, x) ((data)->enable_reg_offset + 0x4 * x)
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#define SUN4I_IRQ_MASK_REG(data, x) ((data)->mask_reg_offset + 0x4 * x)
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#define SUN4I_IRQ_ENABLE_REG_OFFSET 0x40
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#define SUN4I_IRQ_MASK_REG_OFFSET 0x50
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struct sun4i_irq_chip_data {
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void __iomem *irq_base;
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struct irq_domain *irq_domain;
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u32 enable_reg_offset;
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u32 mask_reg_offset;
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};
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static struct sun4i_irq_chip_data *irq_ic_data;
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@ -57,9 +61,10 @@ static void sun4i_irq_mask(struct irq_data *irqd)
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int reg = irq / 32;
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u32 val;
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val = readl(irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg));
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val = readl(irq_ic_data->irq_base +
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SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg));
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writel(val & ~(1 << irq_off),
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irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg));
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irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg));
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}
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static void sun4i_irq_unmask(struct irq_data *irqd)
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@ -69,9 +74,10 @@ static void sun4i_irq_unmask(struct irq_data *irqd)
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int reg = irq / 32;
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u32 val;
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val = readl(irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg));
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val = readl(irq_ic_data->irq_base +
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SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg));
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writel(val | (1 << irq_off),
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irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg));
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irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg));
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}
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static struct irq_chip sun4i_irq_chip = {
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@ -105,20 +111,23 @@ static int __init sun4i_of_init(struct device_node *node,
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return -ENOMEM;
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}
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irq_ic_data->enable_reg_offset = SUN4I_IRQ_ENABLE_REG_OFFSET;
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irq_ic_data->mask_reg_offset = SUN4I_IRQ_MASK_REG_OFFSET;
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irq_ic_data->irq_base = of_iomap(node, 0);
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if (!irq_ic_data->irq_base)
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panic("%pOF: unable to map IC registers\n",
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node);
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/* Disable all interrupts */
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(0));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(1));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(2));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, 0));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, 1));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, 2));
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/* Unmask all the interrupts, ENABLE_REG(x) is used for masking */
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(0));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(1));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(2));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(irq_ic_data, 0));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(irq_ic_data, 1));
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writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(irq_ic_data, 2));
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/* Clear all the pending interrupts */
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writel(0xffffffff, irq_ic_data->irq_base + SUN4I_IRQ_PENDING_REG(0));
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