31 files changed, 1339 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 233a222752c0..79251a9cfb6f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -548,6 +548,15 @@ config ARCH_W90X900
           <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
                 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
 
+config ARCH_NUC93X
+        bool "Nuvoton NUC93X CPU"
+        select CPU_ARM926T
+        select HAVE_CLK
+        select COMMON_CLKDEV
+        help
+          Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
+          low-power and high performance MPEG-4/JPEG multimedia controller chip.
+
 config ARCH_PNX4008
         bool "Philips Nexperia PNX4008 Mobile"
         select CPU_ARM926T
@@ -828,6 +837,8 @@ source "arch/arm/mach-u300/Kconfig"
 
 source "arch/arm/mach-w90x900/Kconfig"
 
+source "arch/arm/mach-nuc93x/Kconfig"
+
 source "arch/arm/mach-bcmring/Kconfig"
 
 source "arch/arm/mach-ux500/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index e9da08483b3c..3eaef160d468 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -170,6 +170,7 @@ machine-$(CONFIG_ARCH_U300)		:= u300
 machine-$(CONFIG_ARCH_U8500)            := ux500
 machine-$(CONFIG_ARCH_VERSATILE)        := versatile
 machine-$(CONFIG_ARCH_W90X900)          := w90x900
+machine-$(CONFIG_ARCH_NUC93X)           := nuc93x
 machine-$(CONFIG_FOOTBRIDGE)            := footbridge
 machine-$(CONFIG_ARCH_MXC91231)         := mxc91231
 
diff --git a/arch/arm/mach-nuc93x/Kconfig b/arch/arm/mach-nuc93x/Kconfig
new file mode 100644
index 000000000000..2bc40a280fad
--- /dev/null
+++ b/arch/arm/mach-nuc93x/Kconfig
@@ -0,0 +1,19 @@
+if ARCH_NUC93X
+
+config CPU_NUC932
+        bool
+        help
+          Support for NUC932 of Nuvoton NUC93X CPUs.
+
+menu "NUC932 Machines"
+
+config MACH_NUC932EVB
+        bool "Nuvoton NUC932 Evaluation Board"
+        default y
+        select CPU_NUC932
+        help
+           Say Y here if you are using the Nuvoton NUC932EVB
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-nuc93x/Makefile b/arch/arm/mach-nuc93x/Makefile
new file mode 100644
index 000000000000..440e2dec6c8a
--- /dev/null
+++ b/arch/arm/mach-nuc93x/Makefile
@@ -0,0 +1,14 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y                           := irq.o time.o dev.o cpu.o clock.o
+# NUC932 CPU support files
+
+obj-$(CONFIG_CPU_NUC932)        += nuc932.o
+
+# machine support
+
+obj-$(CONFIG_MACH_NUC932EVB)    += mach-nuc932evb.o
diff --git a/arch/arm/mach-nuc93x/Makefile.boot b/arch/arm/mach-nuc93x/Makefile.boot
new file mode 100644
index 000000000000..a057b546b6e5
--- /dev/null
+++ b/arch/arm/mach-nuc93x/Makefile.boot
@@ -0,0 +1,3 @@
+zreladdr-y      := 0x00008000
+params_phys-y   := 0x00000100
+
diff --git a/arch/arm/mach-nuc93x/clock.c b/arch/arm/mach-nuc93x/clock.c
new file mode 100644
index 000000000000..0521efbc48c9
--- /dev/null
+++ b/arch/arm/mach-nuc93x/clock.c
@@ -0,0 +1,83 @@
+/*
+ * linux/arch/arm/mach-nuc93x/clock.c
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/string.h>
+#include <linux/clk.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+
+#include "clock.h"
+
+static DEFINE_SPINLOCK(clocks_lock);
+
+int clk_enable(struct clk *clk)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&clocks_lock, flags);
+        if (clk->enabled++ == 0)
+                (clk->enable)(clk, 1);
+        spin_unlock_irqrestore(&clocks_lock, flags);
+
+        return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+        unsigned long flags;
+
+        WARN_ON(clk->enabled == 0);
+
+        spin_lock_irqsave(&clocks_lock, flags);
+        if (--clk->enabled == 0)
+                (clk->enable)(clk, 0);
+        spin_unlock_irqrestore(&clocks_lock, flags);
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+        return 27000000;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void nuc93x_clk_enable(struct clk *clk, int enable)
+{
+        unsigned int clocks = clk->cken;
+        unsigned long clken;
+
+        clken = __raw_readl(NUC93X_VA_CLKPWR);
+
+        if (enable)
+                clken |= clocks;
+