REG_EASRC_CS4
ret = regmap_read(easrc->regmap, REG_EASRC_CS4(mc->regbase), ®val[4]);
ret = regmap_update_bits_check(easrc->regmap, REG_EASRC_CS4(mc->regbase),
{REG_EASRC_CS4(0), 0x00000000},
{REG_EASRC_CS4(1), 0x00000000},
{REG_EASRC_CS4(2), 0x00000000},
{REG_EASRC_CS4(3), 0x00000000},