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cmdline: add gpio config interface

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kfx
2012-09-28 11:52:13 +08:00
parent 329dd6fc84
commit c23d9ba492
1 changed files with 64 additions and 0 deletions
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64
arch/arm/plat-rk/include/plat/gpio.h
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@@ -1,6 +1,70 @@
#ifndef __PLAT_GPIO_H
#define __PLAT_GPIO_H
/*
* tp_int = <bank><goff><off><driving force><wake_en><irq_flags><reserve>
* tp_rst = <bank><goff><off><driving force><active_low><pull_mode><reserve>
* gpio = RKXX_PIN(bank)_P(goff)(off)
* e.g. bank=2, goff=A, off=3 ==>gpio is RKXX_PIN2_PA3
*/
struct irq_config{
#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned int off:4, //bit[3:0]
goff:4,
bank:4,
driving_force:4,
wake_en:4,
irq_flags:4,
reserve:8;
#else
#error "Adjust your <asm/byteorder.h> defines"
#endif
};
struct gpio_config{
#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned int off:4, //bit[3:0]
goff:4,
bank:4,
driving_force:4,
active_low:4,
pull_mode:4,
reserve:8;
#else
#error "Adjust your <asm/byteorder.h> defines"
#endif
};
#if defined(CONFIG_ARCH_RK2928)
#define PORT_BASE RK2928_PIN0_PA0
#elif defined(CONFIG_ARCH_RK30)
#define PORT_BASE RK30_PIN0_PA0
#elif defined(CONFIG_ARCH_RK29)
#define PORT_BASE RK29_PIN0_PA0
#else
#error "Arm system type is not support"
#endif
struct port_config {
union{
struct irq_config irq;
struct gpio_config io;
unsigned int v;
};
int gpio;
};
static inline struct port_config get_port_config(unsigned int value)
{
struct port_config port;
port.v = value;
port.gpio = PORT_BASE + port.io.bank * 32 + (port.io.goff - 0x0A) * 8 + port.io.off;
return port;
}
typedef enum eGPIOPinLevel
{
GPIO_LOW=0,