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authorArnaud Patard <arnaud.patard@rtp-net.org>2008-07-08 23:07:48 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-09 23:31:42 +0100
commit63f385cd1f649b3f4f2d59fc609e051981215fd7 (patch)
treeb0c1d0bf186c701284ba63dda9514cec333037a5 /include/asm-arm
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
[ARM] 5160/1: IOP3XX: gpio/gpiolib support
This patch brings support for gpio/gpiolib framework to Intel IOP3xx platforms. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/arch-iop32x/gpio.h6
-rw-r--r--include/asm-arm/arch-iop33x/gpio.h6
-rw-r--r--include/asm-arm/hardware/iop3xx-gpio.h73
3 files changed, 85 insertions, 0 deletions
diff --git a/include/asm-arm/arch-iop32x/gpio.h b/include/asm-arm/arch-iop32x/gpio.h
new file mode 100644
index 00000000000..708f4ec9db1
--- /dev/null
+++ b/include/asm-arm/arch-iop32x/gpio.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_ARCH_IOP32X_GPIO_H
+#define __ASM_ARCH_IOP32X_GPIO_H
+
+#include <asm/hardware/iop3xx-gpio.h>
+
+#endif
diff --git a/include/asm-arm/arch-iop33x/gpio.h b/include/asm-arm/arch-iop33x/gpio.h
new file mode 100644
index 00000000000..ddd55bba9bb
--- /dev/null
+++ b/include/asm-arm/arch-iop33x/gpio.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_ARCH_IOP33X_GPIO_H
+#define __ASM_ARCH_IOP33X_GPIO_H
+
+#include <asm/hardware/iop3xx-gpio.h>
+
+#endif
diff --git a/include/asm-arm/hardware/iop3xx-gpio.h b/include/asm-arm/hardware/iop3xx-gpio.h
new file mode 100644
index 00000000000..0c9331f9ac2
--- /dev/null
+++ b/include/asm-arm/hardware/iop3xx-gpio.h
@@ -0,0 +1,73 @@
+/*
+ * linux/include/asm-arm/hardware/iop3xx-gpio.h
+ *
+ * IOP3xx GPIO wrappers
+ *
+ * Copyright (c) 2008 Arnaud Patard <arnaud.patard@rtp-net.org>
+ * Based on IXP4XX gpio.h file
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
+#define __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
+
+#include <asm/hardware.h>
+#include <asm-generic/gpio.h>
+
+#define IOP3XX_N_GPIOS 8
+
+static inline int gpio_get_value(unsigned gpio)
+{
+ if (gpio > IOP3XX_N_GPIOS)
+ return __gpio_get_value(gpio);
+
+ return gpio_line_get(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+ if (gpio > IOP3XX_N_GPIOS) {
+ __gpio_set_value(gpio, value);
+ return;
+ }
+ gpio_line_set(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned gpio)
+{
+ if (gpio < IOP3XX_N_GPIOS)
+ return 0;
+ else
+ return __gpio_cansleep(gpio);
+}
+
+/*
+ * The GPIOs are not generating any interrupt
+ * Note : manuals are not clear about this
+ */
+static inline int gpio_to_irq(int gpio)
+{
+ return -EINVAL;
+}
+
+static inline int irq_to_gpio(int gpio)
+{
+ return -EINVAL;
+}
+
+#endif
+