[ARM] mv78xx0: implement GPIO and GPIO interrupt support

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

3 files changed, 41 insertions, 6 deletions

diff --git a/arch/arm/mach-mv78xx0/include/mach/gpio.h b/arch/arm/mach-mv78xx0/include/mach/gpio.h
new file mode 100644
index 000000000000..d9d1535ea100
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/include/mach/gpio.h
@@ -0,0 +1,40 @@
+/*
+ * arch/asm-arm/mach-mv78xx0/include/mach/gpio.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
+
+#include <mach/irqs.h>
+#include <plat/gpio.h>
+#include <asm-generic/gpio.h>           /* cansleep wrappers */
+
+extern int mv78xx0_core_index(void);
+
+#define GPIO_MAX                32
+#define GPIO_OUT(pin)           (DEV_BUS_VIRT_BASE + 0x0100)
+#define GPIO_IO_CONF(pin)       (DEV_BUS_VIRT_BASE + 0x0104)
+#define GPIO_BLINK_EN(pin)      (DEV_BUS_VIRT_BASE + 0x0108)
+#define GPIO_IN_POL(pin)        (DEV_BUS_VIRT_BASE + 0x010c)
+#define GPIO_DATA_IN(pin)       (DEV_BUS_VIRT_BASE + 0x0110)
+#define GPIO_EDGE_CAUSE(pin)    (DEV_BUS_VIRT_BASE + 0x0114)
+#define GPIO_MASK_OFF           (mv78xx0_core_index() ? 0x18 : 0)
+#define GPIO_EDGE_MASK(pin)     (DEV_BUS_VIRT_BASE + 0x0118 + GPIO_MASK_OFF)
+#define GPIO_LEVEL_MASK(pin)    (DEV_BUS_VIRT_BASE + 0x011c + GPIO_MASK_OFF)
+
+static inline int gpio_to_irq(int pin)
+{
+        return pin + IRQ_MV78XX0_GPIO_START;
+}
+
+static inline int irq_to_gpio(int irq)
+{
+        return irq - IRQ_MV78XX0_GPIO_START;
+}
+
+
+#endif
diff --git a/arch/arm/mach-mv78xx0/include/mach/irqs.h b/arch/arm/mach-mv78xx0/include/mach/irqs.h
index bebc330281ec..fa1d422196c2 100644
--- a/arch/arm/mach-mv78xx0/include/mach/irqs.h
+++ b/arch/arm/mach-mv78xx0/include/mach/irqs.h
@@ -11,8 +11,6 @@
 #ifndef __ASM_ARCH_IRQS_H
 #define __ASM_ARCH_IRQS_H
 
-#include "mv78xx0.h"    /* need GPIO_MAX */
-
 /*
  * MV78xx0 Low Interrupt Controller
  */
@@ -88,7 +86,7 @@
  * MV78XX0 General Purpose Pins
  */
 #define IRQ_MV78XX0_GPIO_START  96
-#define NR_GPIO_IRQS            GPIO_MAX
+#define NR_GPIO_IRQS            32
 
 #define NR_IRQS                 (IRQ_MV78XX0_GPIO_START + NR_GPIO_IRQS)
 
diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
index ee9c5593ee92..e930ea5330a2 100644
--- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
+++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
@@ -122,7 +122,4 @@
 #define SATA_PHYS_BASE          (MV78XX0_REGS_PHYS_BASE | 0xa0000)
 
 
-#define GPIO_MAX                32
-
-
 #endif