[ARM PATCH] 1759/1: Add ARM925 support, updated

Patch from Tony Lindgren

The following patch adds the ARM925 processor support.

This patch is based on the proc-arm925.S in 2.4 kernel, and it has been
modified to be more like the ARM926 support in the 2.6 kernel, except for
the cache flushing and initialization. Also, this patch fixes the
writeback cache flushing for most part.

There are still some issues with writeback cache flushing with devices 
using direct memory access, such as USB OHCI. It is recommended to use
the writethrough instead if using USB. This is the default for OMAP-1510.
OMAP-1610 does not have these issues, as it uses ARM926 core.

This patch includes the update for the processor functions to be armv4t 
instead armv5t as suggested here:

http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=1740/1

arch/arm/mm/Kconfig

@@ -91,10 +91,28 @@ config CPU_ARM922T
 	  Say Y if you want support for the ARM922T processor.
 	  Otherwise, say N.
 
+# ARM925T
+config CPU_ARM925T
+ 	bool
+ 	depends on ARCH_OMAP1510
+ 	default y
+	select CPU_32v4
+	select CPU_ABRT_EV4T
+	select CPU_CACHE_V4WT
+	select CPU_COPY_V4WB
+	select CPU_TLB_V4WBI
+ 	help
+ 	  The ARM925T is a mix between the ARM920T and ARM926T, but with
+	  different instruction and data caches. It is used in TI's OMAP
+ 	  device family.
+
+ 	  Say Y if you want support for the ARM925T processor.
+ 	  Otherwise, say N.
+
 # ARM926T
 config CPU_ARM926T
 	bool "Support ARM926T processor"
-	depends on ARCH_INTEGRATOR
+	depends on ARCH_INTEGRATOR || ARCH_OMAP1610
 	select CPU_32v5
 	select CPU_ABRT_EV5TJ
 	select CPU_COPY_V4WB
@@ -288,7 +306,7 @@ comment "Processor Features"
 
 config ARM_THUMB
 	bool "Support Thumb user binaries"
-	depends on CPU_ARM720T || CPU_ARM920T || CPU_ARM922T || CPU_ARM926T || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE
+	depends on CPU_ARM720T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE
 	default y
 	help
 	  Say Y if you want to include kernel support for running user space
@@ -311,21 +329,21 @@ config CPU_BIG_ENDIAN
 
 config CPU_ICACHE_DISABLE
 	bool "Disable I-Cache"
-	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM926T || CPU_ARM1020
+	depends on CPU_ARM920T || CPU_ARM922T ||  CPU_ARM925T || CPU_ARM926T || CPU_ARM1020
 	help
 	  Say Y here to disable the processor instruction cache. Unless
 	  you have a reason not to or are unsure, say N.
 
 config CPU_DCACHE_DISABLE
 	bool "Disable D-Cache"
-	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM926T || CPU_ARM1020
+	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020
 	help
 	  Say Y here to disable the processor data cache. Unless
 	  you have a reason not to or are unsure, say N.
 
 config CPU_DCACHE_WRITETHROUGH
 	bool "Force write through D-cache"
-	depends on (CPU_ARM920T || CPU_ARM922T || CPU_ARM926T || CPU_ARM1020) && !CPU_DISABLE_DCACHE
+	depends on (CPU_ARM920T || CPU_ARM922T ||  CPU_ARM925T || CPU_ARM926T || CPU_ARM1020) && !CPU_DISABLE_DCACHE
 	help
 	  Say Y here to use the data cache in writethough mode. Unless you
 	  specifically require this or are unsure, say N.

arch/arm/mm/Makefile

@@ -39,6 +39,7 @@ obj-$(CONFIG_CPU_ARM710)	+= proc-arm6_7.o
 obj-$(CONFIG_CPU_ARM720T)	+= proc-arm720.o
 obj-$(CONFIG_CPU_ARM920T)	+= proc-arm920.o
 obj-$(CONFIG_CPU_ARM922T)	+= proc-arm922.o
+obj-$(CONFIG_CPU_ARM925T)	+= proc-arm925.o
 obj-$(CONFIG_CPU_ARM926T)	+= proc-arm926.o
 obj-$(CONFIG_CPU_ARM1020)	+= proc-arm1020.o
 obj-$(CONFIG_CPU_ARM1020E)	+= proc-arm1020e.o