target/linux/ramips/patches-3.8/0014-MIPS-ralink-add-CPU-interrupt-controller-to-of_irq_i.patch

   1 From 9afd2ba44145009578d9d445183480a698cc04f2 Mon Sep 17 00:00:00 2001
   2 From: Gabor Juhos <juhosg@openwrt.org>
   3 Date: Thu, 31 Jan 2013 20:43:30 +0100
   4 Subject: [PATCH 14/79] MIPS: ralink: add CPU interrupt controller to
   5  of_irq_ids
   6
   7 Convert the ralink IRQ code to make use of the new MIPS IRQ controller OF
   8 mappings.
   9
  10 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  11 Signed-off-by: John Crispin <blogic@openwrt.org>
  12 Acked-by: David Daney <david.daney@cavium.com>
  13 Patchwork: http://patchwork.linux-mips.org/patch/4900/
  14 ---
  15  arch/mips/ralink/dts/rt3050.dtsi |   10 ++++++++++
  16  arch/mips/ralink/irq.c           |   10 +++++++---
  17  2 files changed, 17 insertions(+), 3 deletions(-)
  18
  19 diff --git a/arch/mips/ralink/dts/rt3050.dtsi b/arch/mips/ralink/dts/rt3050.dtsi
  20 index fd49daa..069d066 100644
  21 --- a/arch/mips/ralink/dts/rt3050.dtsi
  22 +++ b/arch/mips/ralink/dts/rt3050.dtsi
  23 @@ -13,6 +13,13 @@
  24                 bootargs = "console=ttyS0,57600 init=/init";
  25         };
  26
  27 +       cpuintc: cpuintc@0 {
  28 +               #address-cells = <0>;
  29 +               #interrupt-cells = <1>;
  30 +               interrupt-controller;
  31 +               compatible = "mti,cpu-interrupt-controller";
  32 +       };
  33 +
  34         palmbus@10000000 {
  35                 compatible = "palmbus";
  36                 reg = <0x10000000 0x200000>;
  37 @@ -37,6 +44,9 @@
  38
  39                         interrupt-controller;
  40                         #interrupt-cells = <1>;
  41 +
  42 +                       interrupt-parent = <&cpuintc>;
  43 +                       interrupts = <2>;
  44                 };
  45
  46                 memc@300 {
  47 diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
  48 index e62c975..6d054c5 100644
  49 --- a/arch/mips/ralink/irq.c
  50 +++ b/arch/mips/ralink/irq.c
  51 @@ -128,8 +128,11 @@ static int __init intc_of_init(struct device_node *node,
  52  {
  53         struct resource res;
  54         struct irq_domain *domain;
  55 +       int irq;
  56
  57 -       mips_cpu_irq_init();
  58 +       irq = irq_of_parse_and_map(node, 0);
  59 +       if (!irq)
  60 +               panic("Failed to get INTC IRQ");
  61
  62         if (of_address_to_resource(node, 0, &res))
  63                 panic("Failed to get intc memory range");
  64 @@ -156,8 +159,8 @@ static int __init intc_of_init(struct device_node *node,
  65
  66         rt_intc_w32(INTC_INT_GLOBAL, INTC_REG_ENABLE);
  67
  68 -       irq_set_chained_handler(RALINK_CPU_IRQ_INTC, ralink_intc_irq_handler);
  69 -       irq_set_handler_data(RALINK_CPU_IRQ_INTC, domain);
  70 +       irq_set_chained_handler(irq, ralink_intc_irq_handler);
  71 +       irq_set_handler_data(irq, domain);
  72
  73         cp0_perfcount_irq = irq_create_mapping(domain, 9);
  74
  75 @@ -165,6 +168,7 @@ static int __init intc_of_init(struct device_node *node,
  76  }
  77
  78  static struct of_device_id __initdata of_irq_ids[] = {
  79 +       { .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_intc_init },
  80         { .compatible = "ralink,rt2880-intc", .data = intc_of_init },
  81         {},
  82  };
  83 --
  84 1.7.10.4
  85