summaryrefslogtreecommitdiffstats
path: root/include/asm-arm/arch-sa1100/entry-macro.S
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/arch-sa1100/entry-macro.S')
-rw-r--r--include/asm-arm/arch-sa1100/entry-macro.S41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/entry-macro.S b/include/asm-arm/arch-sa1100/entry-macro.S
new file mode 100644
index 000000000000..51fb50ce1169
--- /dev/null
+++ b/include/asm-arm/arch-sa1100/entry-macro.S
@@ -0,0 +1,41 @@
+/*
+ * include/asm-arm/arch-sa1100/entry-macro.S
+ *
+ * Low-level IRQ helper macros for SA1100-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
+ mov r4, #0xfa000000 @ ICIP = 0xfa050000
+ add r4, r4, #0x00050000
+ ldr \irqstat, [r4] @ get irqs
+ ldr \irqnr, [r4, #4] @ ICMR = 0xfa050004
+ ands \irqstat, \irqstat, \irqnr
+ mov \irqnr, #0
+ beq 1001f
+ 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
+