[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, 38 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ks8695/debug-macro.S b/include/asm-arm/arch-ks8695/debug-macro.S
new file mode 100644
index 000000000000..cd5f2fb1f06e
--- /dev/null
+++ b/include/asm-arm/arch-ks8695/debug-macro.S
@@ -0,0 +1,38 @@
+/*
+ * include/asm-arm/arch-ks8695/debug-macro.S
+ *
+ * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
+ * Copyright (C) 2006 Simtec Electronics
+ *
+ * KS8695 - Debug macros
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/hardware.h>
+#include <asm/arch/regs-uart.h>
+
+        .macro  addruart, rx
+                mrc     p15, 0, \rx, c1, c0
+                tst     \rx, #1                         @ MMU enabled?
+                ldreq   \rx, =KS8695_UART_PA            @ physical base address
+                ldrne   \rx, =KS8695_UART_VA            @ virtual base address
+        .endm
+
+        .macro  senduart, rd, rx
+                str     \rd, [\rx, #KS8695_URTH]        @ Write to Transmit Holding Register
+        .endm
+
+        .macro  busyuart, rd, rx
+1001:           ldr     \rd, [\rx, #KS8695_URLS]        @ Read Line Status Register
+                tst     \rd, #URLS_URTE                 @ Holding & Shift registers empty?
+                beq     1001b
+        .endm
+
+        .macro  waituart, rd, rx
+1001:           ldr     \rd, [\rx, #KS8695_URLS]        @ Read Line Status Register
+                tst     \rd, #URLS_URTHRE               @ Holding Register empty?
+                beq     1001b
+        .endm