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#ifndef __AML_GPIO__
#define __AML_GPIO__
#include <asm/io.h>
/**
* struct meson_reg_desc - a register descriptor
*
* @reg: register offset in the regmap
* @bit: bit index in register
*
* The structure describes the information needed to control pull,
* pull-enable, direction, etc. for a single pin
*/
struct meson_reg_desc {
unsigned int reg;
unsigned int bit;
};
/**
* enum meson_reg_type - type of registers encoded in @meson_reg_desc
*/
enum meson_reg_type {
REG_PULLEN,
REG_PULL,
REG_DIR,
REG_OUT,
REG_IN,
NUM_REG,
};
struct meson_bank {
const char *name;
unsigned int first;
unsigned int last;
struct meson_reg_desc regs[NUM_REG];
};
#define GPIO_REG_BIT(reg, bit) ((reg<<5)|bit)
#define GPIO_REG(value) ((value>>5))
#define GPIO_BIT(value) ((value&0x1F))
#define BIT(bit) (1<<bit)
static inline void regmap_update_bits(unsigned long reg,unsigned mask,unsigned val)
{
unsigned int tmp, orig;
orig = readl(reg);
tmp = orig & ~mask;
tmp |= val & mask;
writel(tmp,reg);
return;
}
#endif
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