Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

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 0000000..90fa2f7
--- /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
+
+