RK3288_SGRF_CPU_CON0
regmap_write(sgrf_regmap, RK3288_SGRF_CPU_CON0, SGRF_DAPDEVICEEN_WRITE);
regmap_write(sgrf_regmap, RK3288_SGRF_CPU_CON0,
regmap_read(sgrf_regmap, RK3288_SGRF_CPU_CON0, &rk3288_sgrf_cpu_con0);