LAN9252_ECAT_CSR_BUSY
if (!(data & LAN9252_ECAT_CSR_BUSY))
return (!(data & LAN9252_ECAT_CSR_BUSY)) ? 0 : -ETIMEDOUT;
csr_cmd = LAN9252_ECAT_CSR_BUSY | LAN9252_ECAT_CSR_READ;
csr_cmd = LAN9252_ECAT_CSR_BUSY;