summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-clps711x/include/mach/entry-macro.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-clps711x/include/mach/entry-macro.S')
-rw-r--r--arch/arm/mach-clps711x/include/mach/entry-macro.S58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-clps711x/include/mach/entry-macro.S b/arch/arm/mach-clps711x/include/mach/entry-macro.S
new file mode 100644
index 000000000000..90fa2f70489f
--- /dev/null
+++ b/arch/arm/mach-clps711x/include/mach/entry-macro.S
@@ -0,0 +1,58 @@
+/*
+ * arch/arm/mach-clps711x/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for CLPS711X-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/hardware.h>
+#include <asm/hardware/clps7111.h>
+
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+#if (INTSR2 - INTSR1) != (INTMR2 - INTMR1)
+#error INTSR stride != INTMR stride
+#endif
+
+ .macro get_irqnr_and_base, irqnr, stat, base, mask
+ mov \base, #CLPS7111_BASE
+ ldr \stat, [\base, #INTSR1]
+ ldr \mask, [\base, #INTMR1]
+ mov \irqnr, #4
+ mov \mask, \mask, lsl #16
+ and \stat, \stat, \mask, lsr #16
+ movs \stat, \stat, lsr #4
+ bne 1001f
+
+ add \base, \base, #INTSR2 - INTSR1
+ ldr \stat, [\base, #INTSR1]
+ ldr \mask, [\base, #INTMR1]
+ mov \irqnr, #16
+ mov \mask, \mask, lsl #16
+ and \stat, \stat, \mask, lsr #16
+
+1001: tst \stat, #255
+ addeq \irqnr, \irqnr, #8
+ moveq \stat, \stat, lsr #8
+ tst \stat, #15
+ addeq \irqnr, \irqnr, #4
+ moveq \stat, \stat, lsr #4
+ tst \stat, #3
+ addeq \irqnr, \irqnr, #2
+ moveq \stat, \stat, lsr #2
+ tst \stat, #1
+ addeq \irqnr, \irqnr, #1
+ moveq \stat, \stat, lsr #1
+ tst \stat, #1 @ bit 0 should be set
+ .endm
+
+