sm501_reg_init
struct sm501_reg_init *r)
struct sm501_reg_init gpio_low;
struct sm501_reg_init gpio_high;
struct sm501_reg_init misc_timing;
struct sm501_reg_init misc_control;
struct sm501_reg_init gpio_data_low;
struct sm501_reg_init gpio_data_high;
struct sm501_reg_init gpio_ddr_low;
struct sm501_reg_init gpio_ddr_high;