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authorMesih Kilinc <mesihkilinc@gmail.com>2018-12-02 23:23:41 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2018-12-13 12:35:58 +0300
commitb0c4b9f35555f02d2d8a701cd336b432415b1a55 (patch)
tree8cc98968ecd78c5a5ff6b1d4169a94318b9ed56e /drivers/irqchip
parentd4fc2ea0f0f883539d91e5e38263e143bc249774 (diff)
downloadlinux-b0c4b9f35555f02d2d8a701cd336b432415b1a55.tar.xz
irqchip/sun4i: Add support for Allwinner ARMv5 F1C100s
This patch adds support for suniv Allwinner ARMv5 F1C100s SoC which has stripped version of interrupt controller that found in A10/A13. 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>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-sun4i.c47
1 files changed, 37 insertions, 10 deletions
diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c
index 507f4e378d2d..fb78d6623556 100644
--- a/drivers/irqchip/irq-sun4i.c
+++ b/drivers/irqchip/irq-sun4i.c
@@ -32,6 +32,8 @@
#define SUN4I_IRQ_MASK_REG(data, x) ((data)->mask_reg_offset + 0x4 * x)
#define SUN4I_IRQ_ENABLE_REG_OFFSET 0x40
#define SUN4I_IRQ_MASK_REG_OFFSET 0x50
+#define SUNIV_IRQ_ENABLE_REG_OFFSET 0x20
+#define SUNIV_IRQ_MASK_REG_OFFSET 0x30
struct sun4i_irq_chip_data {
void __iomem *irq_base;
@@ -105,15 +107,6 @@ static const struct irq_domain_ops sun4i_irq_ops = {
static int __init sun4i_of_init(struct device_node *node,
struct device_node *parent)
{
- irq_ic_data = kzalloc(sizeof(struct sun4i_irq_chip_data), GFP_KERNEL);
- if (!irq_ic_data) {
- pr_err("kzalloc failed!\n");
- return -ENOMEM;
- }
-
- irq_ic_data->enable_reg_offset = SUN4I_IRQ_ENABLE_REG_OFFSET;
- irq_ic_data->mask_reg_offset = SUN4I_IRQ_MASK_REG_OFFSET;
-
irq_ic_data->irq_base = of_iomap(node, 0);
if (!irq_ic_data->irq_base)
panic("%pOF: unable to map IC registers\n",
@@ -149,7 +142,41 @@ static int __init sun4i_of_init(struct device_node *node,
return 0;
}
-IRQCHIP_DECLARE(allwinner_sun4i_ic, "allwinner,sun4i-a10-ic", sun4i_of_init);
+
+static int __init sun4i_ic_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ irq_ic_data = kzalloc(sizeof(struct sun4i_irq_chip_data), GFP_KERNEL);
+ if (!irq_ic_data) {
+ pr_err("kzalloc failed!\n");
+ return -ENOMEM;
+ }
+
+ irq_ic_data->enable_reg_offset = SUN4I_IRQ_ENABLE_REG_OFFSET;
+ irq_ic_data->mask_reg_offset = SUN4I_IRQ_MASK_REG_OFFSET;
+
+ return sun4i_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(allwinner_sun4i_ic, "allwinner,sun4i-a10-ic", sun4i_ic_of_init);
+
+static int __init suniv_ic_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ irq_ic_data = kzalloc(sizeof(struct sun4i_irq_chip_data), GFP_KERNEL);
+ if (!irq_ic_data) {
+ pr_err("kzalloc failed!\n");
+ return -ENOMEM;
+ }
+
+ irq_ic_data->enable_reg_offset = SUNIV_IRQ_ENABLE_REG_OFFSET;
+ irq_ic_data->mask_reg_offset = SUNIV_IRQ_MASK_REG_OFFSET;
+
+ return sun4i_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(allwinner_sunvi_ic, "allwinner,suniv-f1c100s-ic",
+ suniv_ic_of_init);
static void __exception_irq_entry sun4i_handle_irq(struct pt_regs *regs)
{