1 files changed, 129 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h
new file mode 100644
index 000000000000..de7c54731cbe
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/gpio.h
@@ -0,0 +1,129 @@
+/*
+ * arch/arm/plat-omap/include/mach/gpio.h
+ *
+ * OMAP GPIO handling defines and functions
+ *
+ * Copyright (C) 2003-2005 Nokia Corporation
+ *
+ * Written by Juha Yrjölä <juha.yrjola@nokia.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; 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_ARCH_OMAP_GPIO_H
+#define __ASM_ARCH_OMAP_GPIO_H
+
+#include <linux/io.h>
+#include <mach/irqs.h>
+
+#define OMAP1_MPUIO_BASE                        0xfffb5000
+
+#if (defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850))
+
+#define OMAP_MPUIO_INPUT_LATCH          0x00
+#define OMAP_MPUIO_OUTPUT               0x02
+#define OMAP_MPUIO_IO_CNTL              0x04
+#define OMAP_MPUIO_KBR_LATCH            0x08
+#define OMAP_MPUIO_KBC                  0x0a
+#define OMAP_MPUIO_GPIO_EVENT_MODE      0x0c
+#define OMAP_MPUIO_GPIO_INT_EDGE        0x0e
+#define OMAP_MPUIO_KBD_INT              0x10
+#define OMAP_MPUIO_GPIO_INT             0x12
+#define OMAP_MPUIO_KBD_MASKIT           0x14
+#define OMAP_MPUIO_GPIO_MASKIT          0x16
+#define OMAP_MPUIO_GPIO_DEBOUNCING      0x18
+#define OMAP_MPUIO_LATCH                0x1a
+#else
+#define OMAP_MPUIO_INPUT_LATCH          0x00
+#define OMAP_MPUIO_OUTPUT               0x04
+#define OMAP_MPUIO_IO_CNTL              0x08
+#define OMAP_MPUIO_KBR_LATCH            0x10
+#define OMAP_MPUIO_KBC                  0x14
+#define OMAP_MPUIO_GPIO_EVENT_MODE      0x18
+#define OMAP_MPUIO_GPIO_INT_EDGE        0x1c
+#define OMAP_MPUIO_KBD_INT              0x20
+#define OMAP_MPUIO_GPIO_INT             0x24
+#define OMAP_MPUIO_KBD_MASKIT           0x28
+#define OMAP_MPUIO_GPIO_MASKIT          0x2c
+#define OMAP_MPUIO_GPIO_DEBOUNCING      0x30
+#define OMAP_MPUIO_LATCH                0x34
+#endif
+
+#define OMAP34XX_NR_GPIOS               6
+
+#define OMAP_MPUIO(nr)          (OMAP_MAX_GPIO_LINES + (nr))
+#define OMAP_GPIO_IS_MPUIO(nr)  ((nr) >= OMAP_MAX_GPIO_LINES)
+
+#define OMAP_GPIO_IRQ(nr)       (OMAP_GPIO_IS_MPUIO(nr) ? \
+                                 IH_MPUIO_BASE + ((nr) & 0x0f) : \
+                                 IH_GPIO_BASE + (nr))
+
+extern int omap_gpio_init(void);        /* Call from board init only */
+extern void omap2_gpio_prepare_for_retention(void);
+extern void omap2_gpio_resume_after_retention(void);
+extern void omap_set_gpio_debounce(int gpio, int enable);
+extern void omap_set_gpio_debounce_time(int gpio, int enable);
+extern void omap_gpio_save_context(void);
+extern void omap_gpio_restore_context(void);
+/*-------------------------------------------------------------------------*/
+
+/* Wrappers for "new style" GPIO calls, using the new infrastructure
+ * which lets us plug in FPGA, I2C, and other implementations.
+ * *
+ * The original OMAP-specfic calls should eventually be removed.
+ */
+
+#include <linux/errno.h>
+#include <asm-generic/gpio.h>
+
+static inline int gpio_get_value(unsigned gpio)
+{
+        return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+        __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned gpio)
+{
+        return __gpio_cansleep(gpio);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+        return __gpio_to_irq(gpio);
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+        int tmp;
+
+        /* omap1 SOC mpuio */
+        if (cpu_class_is_omap1() && (irq < (IH_MPUIO_BASE + 16)))
+                return (irq - IH_MPUIO_BASE) + OMAP_MAX_GPIO_LINES;
+
+        /* SOC gpio */
+        tmp = irq - IH_GPIO_BASE;
+        if (tmp < OMAP_MAX_GPIO_LINES)
+                return tmp;
+
+        /* we don't supply reverse mappings for non-SOC gpios */
+        return -EIO;
+}
+
+#endif