Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (212 commits)
  [ARM] pxa: Phycore pcm-990-specific code for the PXA270 Quick Capture driver
  [ARM] pxa: V4L2 soc_camera driver for PXA270
  [ARM] pxa: restrict availability of pxa2xx PCMCIA drivers
  [ARM] 5005/1: BAST: Fix kset_name initialiser
  [ARM] 4967/1: Adds functions to set clkout rate for Samsung S3C2410
  [ARM] 4988/1: Add GPIO lib support to the EP93xx
  [ARM] Add initial sparsemem support
  [ARM] pxa: initialise PXA devices before platform init code
  [ARM] 5002/1: tosa: add two more leds
  [ARM] 5004/1: Tosa: make several unreferenced structures static.
  [ARM] 5003/1: Shut up sparse warnings
  [ARM] 4977/2: soc - pxa2xx-ac97 - Add missing clk_enable()
  [ARM] 4976/1: zylonite: Configure GPIO for WM9713 IRQ line
  [ARM] 4974/1: Drop unused leds-tosa.
  [ARM] 4973/1: Tosa: use leds-gpio driver.
  [ARM] 4972/1: Tosa: convert scoop GPIOs usage to generic gpio code
  [ARM] 4971/1: pxaficp_ir: provide startup and shutdown hooks
  [ARM] pxa: lubbock: move mis-placed SPI info
  [ARM] 4970/1: tosa: correct gpio used for wake up.
  [ARM] 4966/1: magician: add MFP pin configuration
  ...

1 files changed, 118 insertions, 0 deletions

diff --git a/arch/arm/mach-ns9xxx/gpio-ns9360.c b/arch/arm/mach-ns9xxx/gpio-ns9360.c
new file mode 100644
index 00000000000..cabfb879dda
--- /dev/null
+++ b/arch/arm/mach-ns9xxx/gpio-ns9360.c
@@ -0,0 +1,118 @@
+/*
+ * arch/arm/mach-ns9xxx/gpio-ns9360.c
+ *
+ * Copyright (C) 2006,2007 by Digi International Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#include <linux/bug.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/arch-ns9xxx/regs-bbu.h>
+#include <asm/arch-ns9xxx/processor-ns9360.h>
+
+#include "gpio-ns9360.h"
+
+static inline int ns9360_valid_gpio(unsigned gpio)
+{
+	return gpio <= 72;
+}
+
+static inline void __iomem *ns9360_gpio_get_gconfaddr(unsigned gpio)
+{
+	if (gpio < 56)
+		return BBU_GCONFb1(gpio / 8);
+	else
+		/*
+		 * this could be optimised away on
+		 * ns9750 only builds, but it isn't ...
+		 */
+		return BBU_GCONFb2((gpio - 56) / 8);
+}
+
+static inline void __iomem *ns9360_gpio_get_gctrladdr(unsigned gpio)
+{
+	if (gpio < 32)
+		return BBU_GCTRL1;
+	else if (gpio < 64)
+		return BBU_GCTRL2;
+	else
+		/* this could be optimised away on ns9750 only builds */
+		return BBU_GCTRL3;
+}
+
+static inline void __iomem *ns9360_gpio_get_gstataddr(unsigned gpio)
+{
+	if (gpio < 32)
+		return BBU_GSTAT1;
+	else if (gpio < 64)
+		return BBU_GSTAT2;
+	else
+		/* this could be optimised away on ns9750 only builds */
+		return BBU_GSTAT3;
+}
+
+/*
+ * each gpio can serve for 4 different purposes [0..3].  These are called
+ * "functions" and passed in the parameter func.  Functions 0-2 are always some
+ * special things, function 3 is GPIO.  If func == 3 dir specifies input or
+ * output, and with inv you can enable an inverter (independent of func).
+ */
+int __ns9360_gpio_configure(unsigned gpio, int dir, int inv, int func)
+{
+	void __iomem *conf = ns9360_gpio_get_gconfaddr(gpio);
+	u32 confval;
+
+	confval = __raw_readl(conf);
+	REGSETIM_IDX(confval, BBU_GCONFx, DIR, gpio & 7, dir);
+	REGSETIM_IDX(confval, BBU_GCONFx, INV, gpio & 7, inv);
+	REGSETIM_IDX(confval, BBU_GCONFx, FUNC, gpio & 7, func);
+	__raw_writel(confval, conf);
+
+	return 0;
+}
+
+int ns9360_gpio_configure(unsigned gpio, int inv, int func)
+{
+	if (likely(ns9360_valid_gpio(gpio))) {
+		if (func == 3) {
+			printk(KERN_WARNING "use gpio_direction_input "
+					"or gpio_direction_output\n");
+			return -EINVAL;
+		} else
+			return __ns9360_gpio_configure(gpio, 0, inv, func);
+	} else
+		return -EINVAL;
+}
+EXPORT_SYMBOL(ns9360_gpio_configure);
+
+int ns9360_gpio_get_value(unsigned gpio)
+{
+	void __iomem *stat = ns9360_gpio_get_gstataddr(gpio);
+	int ret;
+
+	ret = 1 & (__raw_readl(stat) >> (gpio & 31));
+
+	return ret;
+}
+
+void ns9360_gpio_set_value(unsigned gpio, int value)
+{
+	void __iomem *ctrl = ns9360_gpio_get_gctrladdr(gpio);
+	u32 ctrlval;
+
+	ctrlval = __raw_readl(ctrl);
+
+	if (value)
+		ctrlval |= 1 << (gpio & 31);
+	else
+		ctrlval &= ~(1 << (gpio & 31));
+
+	__raw_writel(ctrlval, ctrl);
+}