irqchip/sunxi-nmi: Support sun9i A80 NMI controller

The A80 moves the NMI controller into the PRCM address space, and also
rearranges the registers.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/1449130813-22400-4-git-send-email-wens@csie.org
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index 4ef178078e5b..0820f67cc9a7 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -50,6 +50,12 @@ static struct sunxi_sc_nmi_reg_offs sun6i_reg_offs = {
         .enable = 0x34,
 };
 
+static struct sunxi_sc_nmi_reg_offs sun9i_reg_offs = {
+        .ctrl   = 0x00,
+        .pend   = 0x08,
+        .enable = 0x04,
+};
+
 static inline void sunxi_sc_nmi_write(struct irq_chip_generic *gc, u32 off,
                                       u32 val)
 {
@@ -207,3 +213,10 @@ static int __init sun7i_sc_nmi_irq_init(struct device_node *node,
         return sunxi_sc_nmi_irq_init(node, &sun7i_reg_offs);
 }
 IRQCHIP_DECLARE(sun7i_sc_nmi, "allwinner,sun7i-a20-sc-nmi", sun7i_sc_nmi_irq_init);
+
+static int __init sun9i_nmi_irq_init(struct device_node *node,
+                                     struct device_node *parent)
+{
+        return sunxi_sc_nmi_irq_init(node, &sun9i_reg_offs);
+}
+IRQCHIP_DECLARE(sun9i_nmi, "allwinner,sun9i-a80-nmi", sun9i_nmi_irq_init);