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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/arm/mach-ixp2000/include/mach/entry-macro.S
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/arm/mach-ixp2000/include/mach/entry-macro.S')
-rw-r--r--arch/arm/mach-ixp2000/include/mach/entry-macro.S54
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp2000/include/mach/entry-macro.S b/arch/arm/mach-ixp2000/include/mach/entry-macro.S
new file mode 100644
index 00000000..c4444dff
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/entry-macro.S
@@ -0,0 +1,54 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for IXP2000-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.
+ */
+#include <mach/irqs.h>
+
+ .macro get_irqnr_preamble, base, tmp
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+ mov \irqnr, #0x0 @clear out irqnr as default
+ mov \base, #0xfe000000
+ orr \base, \base, #0x00e00000
+ orr \base, \base, #0x08
+ ldr \irqstat, [\base] @ get interrupts
+
+ cmp \irqstat, #0
+ beq 1001f
+
+ clz \irqnr, \irqstat
+ mov \base, #31
+ subs \irqnr, \base, \irqnr
+
+ /*
+ * We handle PCIA and PCIB here so we don't have an
+ * extra layer of code just to check these two bits.
+ */
+ cmp \irqnr, #IRQ_IXP2000_PCI
+ bne 1001f
+
+ mov \base, #0xfe000000
+ orr \base, \base, #0x00c00000
+ orr \base, \base, #0x00000100
+ orr \base, \base, #0x00000058
+ ldr \irqstat, [\base]
+
+ mov \tmp, #(1<<26)
+ tst \irqstat, \tmp
+ movne \irqnr, #IRQ_IXP2000_PCIA
+ bne 1001f
+
+ mov \tmp, #(1<<27)
+ tst \irqstat, \tmp
+ movne \irqnr, #IRQ_IXP2000_PCIB
+
+1001:
+ .endm
+