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-rw-r--r--arch/arm/mach-sa1100/include/mach/entry-macro.S47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/entry-macro.S b/arch/arm/mach-sa1100/include/mach/entry-macro.S
new file mode 100644
index 0000000..6aa13c4
--- /dev/null
+++ b/arch/arm/mach-sa1100/include/mach/entry-macro.S
@@ -0,0 +1,47 @@
+/*
+ * arch/arm/mach-sa1100/include/mach/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_preamble, base, tmp
+ mov \base, #0xfa000000 @ ICIP = 0xfa050000
+ add \base, \base, #0x00050000
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ ldr \irqstat, [\base] @ get irqs
+ ldr \irqnr, [\base, #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
+
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