40     const PHY_DEVICE_ID: phy::DeviceId = phy::DeviceId::new_with_exact_mask(0x0043a400);
44         // Only 0x3b works with this driver and firmware.  in probe()
45         let hw_rev = dev.read(C45::new(Mmd::PMAPMD, 0xd001))?;  in probe()
46         if (hw_rev >> 8) != 0xb3 {  in probe()
51         dev.write(C45::new(Mmd::PMAPMD, 0xc300), 0x0000)?;  in probe()
53         dev.write(C45::new(Mmd::PMAPMD, 0xc302), 0x0004)?;  in probe()
55         dev.write(C45::new(Mmd::PMAPMD, 0xc319), 0x0038)?;  in probe()
57         dev.write(C45::new(Mmd::PMAPMD, 0xc31a), 0x0098)?;  in probe()
61         dev.write(C45::new(Mmd::PCS, 0x0026), 0x0e00)?;  in probe()
62         dev.write(C45::new(Mmd::PCS, 0x0027), 0x0893)?;  in probe()
63         dev.write(C45::new(Mmd::PCS, 0x0028), 0xa528)?;  in probe()
64         dev.write(C45::new(Mmd::PCS, 0x0029), 0x0003)?;  in probe()
66         dev.write(C45::new(Mmd::PMAPMD, 0xa30a), 0x06e1)?;  in probe()
68         dev.write(C45::new(Mmd::PMAPMD, 0xc300), 0x0002)?;  in probe()
70         dev.write(C45::new(Mmd::PCS, 0xe854), 0x00c0)?;  in probe()
80         let mut dst_offset = 0;  in probe()
85                 dst_offset = 0;  in probe()
89             dev.write(C45::new(dst_mmd, 0x8000 + dst_offset), (*val).into())?;  in probe()
94         dev.write(C45::new(Mmd::PCS, 0xe854), 0x0040)?;  in probe()