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-rw-r--r--arch/arm/mach-mmp/include/mach/gpio.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/include/mach/gpio.h b/arch/arm/mach-mmp/include/mach/gpio.h
new file mode 100644
index 000000000000..ab26d13295c4
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/gpio.h
@@ -0,0 +1,36 @@
1#ifndef __ASM_MACH_GPIO_H
2#define __ASM_MACH_GPIO_H
3
4#include <mach/addr-map.h>
5#include <mach/irqs.h>
6#include <asm-generic/gpio.h>
7
8#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000)
9
10#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
11#define GPIO_REG(x) (*((volatile u32 *)(GPIO_REGS_VIRT + (x))))
12
13#define NR_BUILTIN_GPIO (128)
14
15#define gpio_to_bank(gpio) ((gpio) >> 5)
16#define gpio_to_irq(gpio) (IRQ_GPIO_START + (gpio))
17#define irq_to_gpio(irq) ((irq) - IRQ_GPIO_START)
18
19
20#define __gpio_is_inverted(gpio) (0)
21#define __gpio_is_occupied(gpio) (0)
22
23/* NOTE: these macros are defined here to make optimization of
24 * gpio_{get,set}_value() to work when 'gpio' is a constant.
25 * Usage of these macros otherwise is no longer recommended,
26 * use generic GPIO API whenever possible.
27 */
28#define GPIO_bit(gpio) (1 << ((gpio) & 0x1f))
29
30#define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00)
31#define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c)
32#define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18)
33#define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24)
34
35#include <plat/gpio.h>
36#endif /* __ASM_MACH_GPIO_H */