Merge commit 'v2.6.28-rc2' into core/locking

Conflicts:
	arch/um/include/asm/system.h

1 files changed, 148 insertions, 0 deletions

diff --git a/arch/mips/alchemy/common/gpio.c b/arch/mips/alchemy/common/gpio.c
new file mode 100644
index 00000000000..e660ddd611c
--- /dev/null
+++ b/arch/mips/alchemy/common/gpio.c
@@ -0,0 +1,148 @@
+/*
+ *  Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ *  	Architecture specific GPIO support
+ *
+ *  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, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
+ *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
+ *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Notes :
+ * 	au1000 SoC have only one GPIO line : GPIO1
+ * 	others have a second one : GPIO2
+ */
+
+#include <linux/module.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/gpio.h>
+
+#define gpio1 sys
+#if !defined(CONFIG_SOC_AU1000)
+
+static struct au1x00_gpio2 *const gpio2 = (struct au1x00_gpio2 *) GPIO2_BASE;
+#define GPIO2_OUTPUT_ENABLE_MASK 	0x00010000
+
+static int au1xxx_gpio2_read(unsigned gpio)
+{
+	gpio -= AU1XXX_GPIO_BASE;
+	return ((gpio2->pinstate >> gpio) & 0x01);
+}
+
+static void au1xxx_gpio2_write(unsigned gpio, int value)
+{
+	gpio -= AU1XXX_GPIO_BASE;
+
+	gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | ((!!value) << gpio);
+}
+
+static int au1xxx_gpio2_direction_input(unsigned gpio)
+{
+	gpio -= AU1XXX_GPIO_BASE;
+	gpio2->dir &= ~(0x01 << gpio);
+	return 0;
+}
+
+static int au1xxx_gpio2_direction_output(unsigned gpio, int value)
+{
+	gpio -= AU1XXX_GPIO_BASE;
+	gpio2->dir |= 0x01 << gpio;
+	gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | ((!!value) << gpio);
+	return 0;
+}
+
+#endif /* !defined(CONFIG_SOC_AU1000) */
+
+static int au1xxx_gpio1_read(unsigned gpio)
+{
+	return (gpio1->pinstaterd >> gpio) & 0x01;
+}
+
+static void au1xxx_gpio1_write(unsigned gpio, int value)
+{
+	if (value)
+		gpio1->outputset = (0x01 << gpio);
+	else
+		/* Output a zero */
+		gpio1->outputclr = (0x01 << gpio);
+}
+
+static int au1xxx_gpio1_direction_input(unsigned gpio)
+{
+	gpio1->pininputen = (0x01 << gpio);
+	return 0;
+}
+
+static int au1xxx_gpio1_direction_output(unsigned gpio, int value)
+{
+	gpio1->trioutclr = (0x01 & gpio);
+	au1xxx_gpio1_write(gpio, value);
+	return 0;
+}
+
+int au1xxx_gpio_get_value(unsigned gpio)
+{
+	if (gpio >= AU1XXX_GPIO_BASE)
+#if defined(CONFIG_SOC_AU1000)
+		return 0;
+#else
+		return au1xxx_gpio2_read(gpio);
+#endif
+	else
+		return au1xxx_gpio1_read(gpio);
+}
+EXPORT_SYMBOL(au1xxx_gpio_get_value);
+
+void au1xxx_gpio_set_value(unsigned gpio, int value)
+{
+	if (gpio >= AU1XXX_GPIO_BASE)
+#if defined(CONFIG_SOC_AU1000)
+		;
+#else
+		au1xxx_gpio2_write(gpio, value);
+#endif
+	else
+		au1xxx_gpio1_write(gpio, value);
+}
+EXPORT_SYMBOL(au1xxx_gpio_set_value);
+
+int au1xxx_gpio_direction_input(unsigned gpio)
+{
+	if (gpio >= AU1XXX_GPIO_BASE)
+#if defined(CONFIG_SOC_AU1000)
+		return -ENODEV;
+#else
+		return au1xxx_gpio2_direction_input(gpio);
+#endif
+
+	return au1xxx_gpio1_direction_input(gpio);
+}
+EXPORT_SYMBOL(au1xxx_gpio_direction_input);
+
+int au1xxx_gpio_direction_output(unsigned gpio, int value)
+{
+	if (gpio >= AU1XXX_GPIO_BASE)
+#if defined(CONFIG_SOC_AU1000)
+		return -ENODEV;
+#else
+		return au1xxx_gpio2_direction_output(gpio, value);
+#endif
+
+	return au1xxx_gpio1_direction_output(gpio, value);
+}
+EXPORT_SYMBOL(au1xxx_gpio_direction_output);