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mxc/iomux: add GPIO bank offset for iomux v3 platforms

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These GPIO bank offsets are useful when define a gpio number.
E.G. when GPIO PORTC pin 6 is used for irq request pin of external
expanding device, we can define it like:
  #define EXP_PARENT_IRQ_PIN (GPIO_PORTC + 6)

Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jason Wang 2010-06-12 22:22:39 +08:00 committed by Sascha Hauer
parent b3fb53a81c
commit 426ab49b33
1 changed files with 15 additions and 0 deletions
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15
arch/arm/plat-mxc/include/mach/iomux-v3.h
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@ -89,6 +89,21 @@ struct pad_desc {
#define PAD_CTL_SRE_FAST (1 << 0)
#define PAD_CTL_SRE_SLOW (0 << 0)
#define MX51_NUM_GPIO_PORT 4
#define GPIO_PIN_MASK 0x1f
#define GPIO_PORT_SHIFT 5
#define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)
#define GPIO_PORTA (0 << GPIO_PORT_SHIFT)
#define GPIO_PORTB (1 << GPIO_PORT_SHIFT)
#define GPIO_PORTC (2 << GPIO_PORT_SHIFT)
#define GPIO_PORTD (3 << GPIO_PORT_SHIFT)
#define GPIO_PORTE (4 << GPIO_PORT_SHIFT)
#define GPIO_PORTF (5 << GPIO_PORT_SHIFT)
/*
* setups a single pad in the iomuxer
*/