1 files changed, 39 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ixp4xx/entry-macro.S b/include/asm-arm/arch-ixp4xx/entry-macro.S
new file mode 100644
index 000000000000..455da64832de
--- /dev/null
+++ b/include/asm-arm/arch-ixp4xx/entry-macro.S
@@ -0,0 +1,39 @@
+/*
+ * include/asm-arm/arch-ixp4xx/entry-macro.S
+ *
+ * Low-level IRQ helper macros for IXP4xx-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
+
+                .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+                ldr     \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP_OFFSET)
+                ldr     \irqstat, [\irqstat]            @ get interrupts
+                cmp     \irqstat, #0
+                beq     1001f
+                clz     \irqnr, \irqstat
+                mov     \base, #31
+                subs    \irqnr, \base, \irqnr
+
+1001:
+                /*
+                 * IXP465 has an upper IRQ status register
+                 */
+#if defined(CONFIG_CPU_IXP46X)
+                bne     1002f
+                ldr     \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET)
+                ldr     \irqstat, [\irqstat]            @ get upper interrupts
+                mov     \irqnr, #63
+                clz     \irqstat, \irqstat
+                cmp     \irqstat, #32
+                subne   \irqnr, \irqnr, \irqstat
+1002:
+#endif
+                .endm
+
+