[ARM] 4331/3: Support for Micrel/Kendin KS8695 processor

Add core support for the Kendin/Micrel KS8695 processor family.

It is an ARM922-T based SoC with integrated USART, 4-port Ethernet
Switch, WAN Ethernet port, and optional PCI Host bridge, etc.
 http://www.micrel.com/page.do?page=product-info/sys_on_chip.jsp

This patch is based on earlier patches from Lennert Buytenhek, Ben
Dooks and Greg Ungerer posted to the arm-linux-kernel mailing list in
March 2006;  and Micrel's 2.6.9 port.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 53 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ks8695/entry-macro.S b/include/asm-arm/arch-ks8695/entry-macro.S
new file mode 100644
index 000000000000..e34bdf85920e
--- /dev/null
+++ b/include/asm-arm/arch-ks8695/entry-macro.S
@@ -0,0 +1,53 @@
+/*
+ * include/asm-arm/arch-ks8695/entry-macro.S
+ *
+ * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
+ * Copyright (C) 2006 Simtec Electronics
+ *
+ * Low-level IRQ helper macros for KS8695
+ *
+ * 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 <asm/hardware.h>
+#include <asm/arch/regs-irq.h>
+
+        .macro  disable_fiq
+        .endm
+
+        .macro  get_irqnr_preamble, base, tmp
+                ldr     \base, =KS8695_IRQ_VA                   @ Base address of interrupt controller
+        .endm
+
+        .macro  arch_ret_to_user, tmp1, tmp2
+        .endm
+
+        .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+                ldr     \irqstat, [\base, #KS8695_INTMS]        @ Mask Status register
+
+                teq     \irqstat, #0
+                beq     1001f
+
+                mov     \irqnr, #0
+
+                tst     \irqstat, #0xff
+                moveq   \irqstat, \irqstat, lsr #8
+                addeq   \irqnr, \irqnr, #8
+                tsteq   \irqstat, #0xff
+                moveq   \irqstat, \irqstat, lsr #8
+                addeq   \irqnr, \irqnr, #8
+                tsteq   \irqstat, #0xff
+                moveq   \irqstat, \irqstat, lsr #8
+                addeq   \irqnr, \irqnr, #8
+                tst     \irqstat, #0x0f
+                moveq   \irqstat, \irqstat, lsr #4
+                addeq   \irqnr, \irqnr, #4
+                tst     \irqstat, #0x03
+                moveq   \irqstat, \irqstat, lsr #2
+                addeq   \irqnr, \irqnr, #2
+                tst     \irqstat, #0x01
+                addeqs  \irqnr, \irqnr, #1
+1001:
+        .endm