This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-arm / arch-sa1100 / entry-macro.S

diff --git a/include/asm-arm/arch-sa1100/entry-macro.S b/include/asm-arm/arch-sa1100/entry-macro.S
new file mode 100644 (file)
index 0000000..51fb50c
--- /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
+