uboot下init_sequence_f函数之init_func_i2c

common/board_f.c init_func_i2c

#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
static int init_func_i2c(void)
{
 puts("I2C:   ");
#ifdef CONFIG_SYS_I2C
 i2c_init_all();
#else
 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
#endif
 puts("ready\n");
 return 0;
}
#endif

/*
 * i2c_init_all():
 *
 * not longer needed, will deleted. Actual init the SPD_BUS
 * for compatibility.
 * i2c_adap[] must be initialized beforehead with function pointers and
 * data, including speed and slaveaddr.
 */
void i2c_init_all(void)
{
 i2c_init_board();
 i2c_set_bus_num(CONFIG_SYS_SPD_BUS_NUM);
 return;
}

__weak void i2c_init(int speed, int slaveaddr)
{
 i2c_init_bus(i2c_get_bus_num(), speed, slaveaddr);
}