BGE_MISC_CFG
CSR_WRITE_4_FLUSH(sc, BGE_MISC_CFG, BGE_32BITTIME_66MHZ);
BGE_CLRBIT_FLUSH(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ);
misccfg = CSR_READ_4(sc, BGE_MISC_CFG);
CSR_WRITE_4(sc, BGE_MISC_CFG, 1 << 29);
write_op(sc, BGE_MISC_CFG, reset);
reg = CSR_READ_4(sc, BGE_MISC_CFG) &
CSR_WRITE_4(sc, BGE_MISC_CFG, reg);