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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-pxa/entry-macro.S
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-arm/arch-pxa/entry-macro.S')
-rw-r--r--include/asm-arm/arch-pxa/entry-macro.S31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S
new file mode 100644
index 00000000000..2abfc8bb3ee
--- /dev/null
+++ b/include/asm-arm/arch-pxa/entry-macro.S
@@ -0,0 +1,31 @@
+/*
+ * include/asm-arm/arch-pxa/entry-macro.S
+ *
+ * Low-level IRQ helper macros for PXA-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
+#ifdef CONFIG_PXA27x
+ mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
+ mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
+#else
+ mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
+ add \base, \base, #0x00d00000
+ ldr \irqstat, [\base, #0] @ ICIP
+ ldr \irqnr, [\base, #4] @ ICMR
+#endif
+ ands \irqnr, \irqstat, \irqnr
+ beq 1001f
+ rsb \irqstat, \irqnr, #0
+ and \irqstat, \irqstat, \irqnr
+ clz \irqnr, \irqstat
+ rsb \irqnr, \irqnr, #(31 - PXA_IRQ_SKIP)
+1001:
+ .endm