aboutsummaryrefslogtreecommitdiff
path: root/include/asm-arm/arch-aaec2000/entry-macro.S
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/arch-aaec2000/entry-macro.S')
-rw-r--r--include/asm-arm/arch-aaec2000/entry-macro.S33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-arm/arch-aaec2000/entry-macro.S b/include/asm-arm/arch-aaec2000/entry-macro.S
new file mode 100644
index 00000000000..df31313ab07
--- /dev/null
+++ b/include/asm-arm/arch-aaec2000/entry-macro.S
@@ -0,0 +1,33 @@
+/*
+ * linux/include/asm-arm/arch-aaec2000/entry-macro.S
+ *
+ * Low-level IRQ helper for aaec-2000 based platforms
+ *
+ * Copyright (c) 2005 Nicolas Bellido Y Ortega
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ mov r4, #0xf8000000
+ add r4, r4, #0x00000500
+ mov \base, r4
+ ldr \irqstat, [\base, #0]
+ cmp \irqstat, #0
+ bne 1001f
+ ldr \irqnr, =NR_IRQS+1
+ b 1003f
+1001: mov \irqnr, #0
+1002: ands \tmp, \irqstat, #1
+ mov \irqstat, \irqstat, LSR #1
+ add \irqnr, \irqnr, #1
+ beq 1002b
+ sub \irqnr, \irqnr, #1
+1003:
+ .endm