ARM: 5682/1: Add cpu.c and dev.c and modify some files of w90p910 platform

Add the cpu.c and dev.c and modify w90p910 platform
to apply to use the common API(provided by cpu.c and dev.c)
at the same time, I renamed all w90x900 to nuc900 in every
c file of w90x900 platform and touchscreen's driver name.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 158 insertions, 0 deletions

diff --git a/arch/arm/mach-w90x900/mfp.c b/arch/arm/mach-w90x900/mfp.c
new file mode 100644
index 000000000000..a47dc9a708ee
--- /dev/null
+++ b/arch/arm/mach-w90x900/mfp.c
@@ -0,0 +1,158 @@
+/*
+ * linux/arch/arm/mach-w90x900/mfp.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;version 2 of the License.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/string.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+
+#define REG_MFSEL       (W90X900_VA_GCR + 0xC)
+
+#define GPSELF          (0x01 << 1)
+
+#define GPSELC          (0x03 << 2)
+#define ENKPI           (0x02 << 2)
+#define ENNAND          (0x01 << 2)
+
+#define GPSELEI0        (0x01 << 26)
+#define GPSELEI1        (0x01 << 27)
+
+#define GPIOG0TO1       (0x03 << 14)
+#define GPIOG2TO3       (0x03 << 16)
+#define ENSPI           (0x0a << 14)
+#define ENI2C0          (0x01 << 14)
+#define ENI2C1          (0x01 << 16)
+
+static DEFINE_MUTEX(mfp_mutex);
+
+void mfp_set_groupf(struct device *dev)
+{
+        unsigned long mfpen;
+        const char *dev_id;
+
+        BUG_ON(!dev);
+
+        mutex_lock(&mfp_mutex);
+
+        dev_id = dev_name(dev);
+
+        mfpen = __raw_readl(REG_MFSEL);
+
+        if (strcmp(dev_id, "nuc900-emc") == 0)
+                mfpen |= GPSELF;/*enable mac*/
+        else
+                mfpen &= ~GPSELF;/*GPIOF[9:0]*/
+
+        __raw_writel(mfpen, REG_MFSEL);
+
+        mutex_unlock(&mfp_mutex);
+}
+EXPORT_SYMBOL(mfp_set_groupf);
+
+void mfp_set_groupc(struct device *dev)
+{
+        unsigned long mfpen;
+        const char *dev_id;
+
+        BUG_ON(!dev);
+
+        mutex_lock(&mfp_mutex);
+
+        dev_id = dev_name(dev);
+
+        mfpen = __raw_readl(REG_MFSEL);
+
+        if (strcmp(dev_id, "nuc900-lcd") == 0)
+                mfpen |= GPSELC;/*enable lcd*/
+        else if (strcmp(dev_id, "nuc900-kpi") == 0) {
+                mfpen &= (~GPSELC);/*enable kpi*/
+                mfpen |= ENKPI;
+        } else if (strcmp(dev_id, "nuc900-nand") == 0) {
+                mfpen &= (~GPSELC);/*enable nand*/
+                mfpen |= ENNAND;
+        } else
+                mfpen &= (~GPSELC);/*GPIOC[14:0]*/
+
+        __raw_writel(mfpen, REG_MFSEL);
+
+        mutex_unlock(&mfp_mutex);
+}
+EXPORT_SYMBOL(mfp_set_groupc);
+
+void mfp_set_groupi(struct device *dev)
+{
+        unsigned long mfpen;
+        const char *dev_id;
+
+        BUG_ON(!dev);
+
+        mutex_lock(&mfp_mutex);
+
+        dev_id = dev_name(dev);
+
+        mfpen = __raw_readl(REG_MFSEL);
+
+        mfpen &= ~GPSELEI1;/*default gpio16*/
+
+        if (strcmp(dev_id, "nuc900-wdog") == 0)
+                mfpen |= GPSELEI1;/*enable wdog*/
+        else if (strcmp(dev_id, "nuc900-atapi") == 0)
+                mfpen |= GPSELEI0;/*enable atapi*/
+        else if (strcmp(dev_id, "nuc900-keypad") == 0)
+                mfpen &= ~GPSELEI0;/*enable keypad*/
+
+        __raw_writel(mfpen, REG_MFSEL);
+
+        mutex_unlock(&mfp_mutex);
+}
+EXPORT_SYMBOL(mfp_set_groupi);
+
+void mfp_set_groupg(struct device *dev)
+{
+        unsigned long mfpen;
+        const char *dev_id;
+
+        BUG_ON(!dev);
+
+        mutex_lock(&mfp_mutex);
+
+        dev_id = dev_name(dev);
+
+        mfpen = __raw_readl(REG_MFSEL);
+
+        if (strcmp(dev_id, "nuc900-spi") == 0) {
+                mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);
+                mfpen |= ENSPI;/*enable spi*/
+        } else if (strcmp(dev_id, "nuc900-i2c0") == 0) {
+                mfpen &= ~(GPIOG0TO1);
+                mfpen |= ENI2C0;/*enable i2c0*/
+        } else if (strcmp(dev_id, "nuc900-i2c1") == 0) {
+                mfpen &= ~(GPIOG2TO3);
+                mfpen |= ENI2C1;/*enable i2c1*/
+        } else {
+                mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/
+        }
+
+        __raw_writel(mfpen, REG_MFSEL);
+
+        mutex_unlock(&mfp_mutex);
+}
+EXPORT_SYMBOL(mfp_set_groupg);
+