ARM: 6597/1: Add basic architecture support for VIA/WonderMedia 85xx SoC's

This adds support for the family of Systems-on-Chip produced initially
by VIA and now its subsidiary WonderMedia that have recently become
widespread in lower-end Chinese ARM-based tablets and netbooks.

Support is included for both VT8500 and WM8505, selectable by a
configuration switch at kernel build time.

Included are basic machine initialization files, register and
interrupt definitions, support for the on-chip interrupt controller,
high-precision OS timer, GPIO lines, necessary macros for early debug,
pulse-width-modulated outputs control, as well as platform device
configurations for the specific drivers implemented elsewhere.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5cff165b7eb0..cab466fc5ae6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -875,6 +875,16 @@ config PLAT_SPEAR
         help
           Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
 
+config ARCH_VT8500
+        bool "VIA/WonderMedia 85xx"
+        select CPU_ARM926T
+        select GENERIC_GPIO
+        select ARCH_HAS_CPUFREQ
+        select GENERIC_CLOCKEVENTS
+        select ARCH_REQUIRE_GPIOLIB
+        select HAVE_PWM
+        help
+          Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
 endchoice
 
 #
@@ -1007,6 +1017,8 @@ source "arch/arm/mach-versatile/Kconfig"
 
 source "arch/arm/mach-vexpress/Kconfig"
 
+source "arch/arm/mach-vt8500/Kconfig"
+
 source "arch/arm/mach-w90x900/Kconfig"
 
 # Definitions to make life easier