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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:48:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:48:14 -0700
commit2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac (patch)
tree9c0927ed1d540e5fd704c1f82689870786514655 /arch/arm/mach-w90x900/mfp.c
parent2195d2818c37bdf263865f1e9effccdd9fc5f9d4 (diff)
parent87d721ad7a37b7650dd710c88dd5c6a5bf9fe996 (diff)
downloadop-kernel-dev-2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac.zip
op-kernel-dev-2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac.tar.gz
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (257 commits) [ARM] Update mach-types ARM: 5636/1: Move vendor enum to AMBA include ARM: Fix pfn_valid() for sparse memory [ARM] orion5x: Add LaCie NAS 2Big Network support [ARM] pxa/sharpsl_pm: zaurus c3000 aka spitz: fix resume ARM: 5686/1: at91: Correct AC97 reset line in at91sam9263ek board ARM: 5640/1: This patch modifies the support of AC97 on the at91sam9263 ek board ARM: 5689/1: Update default config of HP Jornada 700-series machines ARM: 5691/1: fix cache aliasing issues between kmap() and kmap_atomic() with highmem ARM: 5688/1: ks8695_serial: disable_irq() lockup ARM: 5687/1: fix an oops with highmem ARM: 5684/1: Add nuc960 platform to w90x900 ARM: 5683/1: Add nuc950 platform to w90x900 ARM: 5682/1: Add cpu.c and dev.c and modify some files of w90p910 platform ARM: 5626/1: add suspend/resume functions to amba-pl011 serial driver ARM: 5625/1: fix hard coded 4K resource size in amba bus detection MMC: MMCI: convert realview MMC to use gpiolib ARM: 5685/1: Make MMCI driver compile without gpiolib ARM: implement highpte ARM: Show FIQ in /proc/interrupts on CONFIG_FIQ ... Fix up trivial conflict in arch/arm/kernel/signal.c. It was due to the TIF_NOTIFY_RESUME addition in commit d0420c83f ("KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures") and follow-ups.
Diffstat (limited to 'arch/arm/mach-w90x900/mfp.c')
-rw-r--r--arch/arm/mach-w90x900/mfp.c158
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 0000000..a47dc9a
--- /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);
+
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