040000 tree 637ebe5dfd1692a1b514cd8553e04658526a5687	Driver
040000 tree 1734a81b22982a3fa63c7f1d4277522b395569e8	Os
040000 tree dee6b2096bd1667a5d674aeafb1d0989cede39e3	Silicon
040000 tree 3a945694f080f64301a43d757c4443de2701b117	SoC