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-rw-r--r--arch/arm/mach-ks8695/include/mach/entry-macro.S53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-ks8695/include/mach/entry-macro.S b/arch/arm/mach-ks8695/include/mach/entry-macro.S
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index 0000000..b4fe0c1
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+++ b/arch/arm/mach-ks8695/include/mach/entry-macro.S
@@ -0,0 +1,53 @@
+/*
+ * arch/arm/mach-ks8695/include/mach/entry-macro.S
+ *
+ * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
+ * Copyright (C) 2006 Simtec Electronics
+ *
+ * Low-level IRQ helper macros for KS8695
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+*/
+
+#include <mach/hardware.h>
+#include <mach/regs-irq.h>
+
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =KS8695_IRQ_VA @ Base address of interrupt controller
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ ldr \irqstat, [\base, #KS8695_INTMS] @ Mask Status register
+
+ teq \irqstat, #0
+ beq 1001f
+
+ mov \irqnr, #0
+
+ tst \irqstat, #0xff
+ moveq \irqstat, \irqstat, lsr #8
+ addeq \irqnr, \irqnr, #8
+ tsteq \irqstat, #0xff
+ moveq \irqstat, \irqstat, lsr #8
+ addeq \irqnr, \irqnr, #8
+ tsteq \irqstat, #0xff
+ moveq \irqstat, \irqstat, lsr #8
+ addeq \irqnr, \irqnr, #8
+ tst \irqstat, #0x0f
+ moveq \irqstat, \irqstat, lsr #4
+ addeq \irqnr, \irqnr, #4
+ tst \irqstat, #0x03
+ moveq \irqstat, \irqstat, lsr #2
+ addeq \irqnr, \irqnr, #2
+ tst \irqstat, #0x01
+ addeqs \irqnr, \irqnr, #1
+1001:
+ .endm
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