Fix external IRQ configuration on Yellowstone & Yosemite
The multiplexed signals Ext IRQ0...3 have to be configured as IRQ,
because they default to GPIOx (440EP/GR).
Patch by Stefan Roese, 28 Oct 2005
diff --git a/board/amcc/yellowstone/yellowstone.c b/board/amcc/yellowstone/yellowstone.c
index 4c0ae21..c2b7cf1 100644
--- a/board/amcc/yellowstone/yellowstone.c
+++ b/board/amcc/yellowstone/yellowstone.c
@@ -95,6 +95,11 @@
out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x00080000);
out32(GPIO1_ISR2L, in32(GPIO1_ISR2L) | 0x00010000);
+ /* external interrupts IRQ0...3 */
+ out32(GPIO1_TCR, in32(GPIO1_TCR) & ~0x0f000000);
+ out32(GPIO1_TSRL, in32(GPIO1_TSRL) & ~0x00005500);
+ out32(GPIO1_ISR1L, in32(GPIO1_ISR1L) | 0x00005500);
+
#if 0 /* test-only */
/*setup USB 2.0 */
out32(GPIO1_TCR, in32(GPIO1_TCR) | 0xc0000000);
diff --git a/board/amcc/yosemite/yosemite.c b/board/amcc/yosemite/yosemite.c
index 7190740..03b412b 100644
--- a/board/amcc/yosemite/yosemite.c
+++ b/board/amcc/yosemite/yosemite.c
@@ -95,6 +95,11 @@
out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x00080000);
out32(GPIO1_ISR2L, in32(GPIO1_ISR2L) | 0x00010000);
+ /* external interrupts IRQ0...3 */
+ out32(GPIO1_TCR, in32(GPIO1_TCR) & ~0x0f000000);
+ out32(GPIO1_TSRL, in32(GPIO1_TSRL) & ~0x00005500);
+ out32(GPIO1_ISR1L, in32(GPIO1_ISR1L) | 0x00005500);
+
/*setup USB 2.0 */
out32(GPIO1_TCR, in32(GPIO1_TCR) | 0xc0000000);
out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x50000000);