1 files changed, 29 insertions, 0 deletions

diff --git a/include/asm-arm/arch-imx/entry-macro.S b/include/asm-arm/arch-imx/entry-macro.S
new file mode 100644
index 000000000000..b40ea7cf88ec
--- /dev/null
+++ b/include/asm-arm/arch-imx/entry-macro.S
@@ -0,0 +1,29 @@
+/*
+ * include/asm-arm/arch-imx/entry-macro.S
+ *
+ * Low-level IRQ helper macros for iMX-based 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.
+ */
+                .macro  disable_fiq
+                .endm
+#define AITC_NIVECSR   0x40
+                .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+                ldr     \irqstat, =IO_ADDRESS(IMX_AITC_BASE)
+                @ Load offset & priority of the highest priority
+                @ interrupt pending.
+                ldr     \irqnr, [\irqstat, #AITC_NIVECSR]
+                @ Shift off the priority leaving the offset or
+                @ "interrupt number"
+                mov     \irqnr, \irqnr, lsr #16
+                ldr     \irqstat, =1    @ dummy compare
+                ldr     \base, =0xFFFF          // invalid interrupt
+                cmp     \irqnr, \base
+                bne     1001f
+                ldr     \irqstat, =0
+1001:
+                tst     \irqstat, #1    @ to make the condition code = TRUE
+                .endm
+