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!

1 files changed, 67 insertions, 0 deletions

diff --git a/include/asm-arm/arch-lh7a40x/entry-macro.S b/include/asm-arm/arch-lh7a40x/entry-macro.S
new file mode 100644
index 00000000000..865f396aa63
--- /dev/null
+++ b/include/asm-arm/arch-lh7a40x/entry-macro.S
@@ -0,0 +1,67 @@
+/*
+ * include/asm-arm/arch-lh7a40x/entry-macro.S
+ *
+ * Low-level IRQ helper macros for LH7A40x 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.
+ */
+
+# if defined (CONFIG_ARCH_LH7A400) && defined (CONFIG_ARCH_LH7A404)
+#  error "LH7A400 and LH7A404 are mutually exclusive"
+# endif
+
+# if defined (CONFIG_ARCH_LH7A400)
+		.macro	disable_fiq
+		.endm
+
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		mov	\irqnr, #0
+		mov	\base, #io_p2v(0x80000000)	@ APB registers
+		ldr	\irqstat, [\base, #0x500]	@ PIC INTSR
+
+1001:		movs	\irqstat, \irqstat, lsr #1	@ Shift into carry
+		bcs	1008f				@ Bit set; irq found
+		add	\irqnr, \irqnr, #1
+		bne	1001b				@ Until no bits
+		b	1009f				@ Nothing?  Hmm.
+1008:		movs	\irqstat, #1			@ Force !Z
+1009:
+               .endm
+
+#elif defined(CONFIG_ARCH_LH7A404)
+
+		.macro	disable_fiq
+		.endm
+
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		mov	\irqnr, #0			@ VIC1 irq base
+		mov	\base, #io_p2v(0x80000000)	@ APB registers
+		add	\base, \base, #0x8000
+		ldr	\tmp, [\base, #0x0030]		@ VIC1_VECTADDR
+		tst	\tmp, #VA_VECTORED		@ Direct vectored
+		bne	1002f
+		tst	\tmp, #VA_VIC1DEFAULT		@ Default vectored VIC1
+		ldrne	\irqstat, [\base, #0]		@ VIC1_IRQSTATUS
+		bne	1001f
+		add	\base, \base, #(0xa000 - 0x8000)
+		ldr	\tmp, [\base, #0x0030]		@ VIC2_VECTADDR
+		tst	\tmp, #VA_VECTORED		@ Direct vectored
+		bne	1002f
+		ldr	\irqstat, [\base, #0]		@ VIC2_IRQSTATUS
+		mov	\irqnr, #32			@ VIC2 irq base
+
+1001:		movs	\irqstat, \irqstat, lsr #1	@ Shift into carry
+		bcs	1008f				@ Bit set; irq found
+		add	\irqnr, \irqnr, #1
+		bne	1001b				@ Until no bits
+		b	1009f				@ Nothing?  Hmm.
+1002:		and	\irqnr, \tmp, #0x3f		@ Mask for valid bits
+1008:		movs	\irqstat, #1			@ Force !Z
+		str	\tmp, [\base, #0x0030]		@ Clear vector
+1009:
+               .endm
+#endif
+
+