mpc85xx: disable the i8259 irq on mpc8548cds (but leave the controller initialized...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25037 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/mpc85xx/patches/120-mpc8548_cds_i8259_noirq_init.patch b/target/linux/mpc85xx/patches/120-mpc8548_cds_i8259_noirq_init.patch
new file mode 100644 (file)
index 0000000..4d58510
--- /dev/null
+++ b/target/linux/mpc85xx/patches/120-mpc8548_cds_i8259_noirq_init.patch
@@ -0,0 +1,23 @@
+--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
++++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+@@ -234,15 +234,16 @@ static int mpc85xx_cds_8259_attach(void)
+               return -ENODEV;
+       }
+ 
++      i8259_init(cascade_node, 0);
++      of_node_put(cascade_node);
++
+       cascade_irq = irq_of_parse_and_map(cascade_node, 0);
+       if (cascade_irq == NO_IRQ) {
+-              printk(KERN_ERR "Failed to map cascade interrupt\n");
++              of_node_put(cascade_node);
++              printk(KERN_DEBUG "No interrupt for i8259 PIC\n");
+               return -ENXIO;
+       }
+ 
+-      i8259_init(cascade_node, 0);
+-      of_node_put(cascade_node);
+-
+       /*
+        *  Hook the interrupt to make sure desc->action is never NULL.
+        *  This is required to ensure that the interrupt does not get

diff --git a/target/linux/mpc85xx/patches/130-mpc8548_cds_disable_i8259_irq.patch b/target/linux/mpc85xx/patches/130-mpc8548_cds_disable_i8259_irq.patch
new file mode 100644 (file)
index 0000000..54a2785
--- /dev/null
+++ b/target/linux/mpc85xx/patches/130-mpc8548_cds_disable_i8259_irq.patch
@@ -0,0 +1,13 @@
+--- a/arch/powerpc/boot/dts/mpc8548cds.dts
++++ b/arch/powerpc/boot/dts/mpc8548cds.dts
+@@ -492,8 +492,10 @@
+                                       #address-cells = <0>;
+                                       #interrupt-cells = <2>;
+                                       compatible = "chrp,iic";
++/*
+                                       interrupts = <0 1>;
+                                       interrupt-parent = <&mpic>;
++*/
+                               };
+ 
+                               rtc@70 {