Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

1 files changed, 32 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/include/mach/entry-macro.S b/arch/arm/mach-at91/include/mach/entry-macro.S
new file mode 100644
index 00000000000..7ab68f97222
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/entry-macro.S
@@ -0,0 +1,32 @@
+/*
+ * arch/arm/mach-at91/include/mach/entry-macro.S
+ *
+ *  Copyright (C) 2003-2005 SAN People
+ *
+ * Low-level IRQ helper macros for AT91RM9200 platforms
+ *
+ * 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/at91_aic.h>
+
+	.macro	disable_fiq
+	.endm
+
+	.macro  get_irqnr_preamble, base, tmp
+	ldr	\base, =(AT91_VA_BASE_SYS + AT91_AIC)		@ base virtual address of AIC peripheral
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+	ldr	\irqnr, [\base, #(AT91_AIC_IVR - AT91_AIC)]	@ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt)
+	ldr	\irqstat, [\base, #(AT91_AIC_ISR - AT91_AIC)]	@ read interrupt source number
+	teq	\irqstat, #0					@ ISR is 0 when no current interrupt, or spurious interrupt
+	streq	\tmp, [\base, #(AT91_AIC_EOICR - AT91_AIC)]	@ not going to be handled further, then ACK it now.
+	.endm
+