| System Firmware |
| =============== |
| |
| The 'firmware' node under 'ibm,opal' lists system and OPAL firmware version. |
| |
| .. code-block:: dts |
| |
| firmware { |
| symbol-map = <0x0 0x300ac650 0x0 0x1b3f5>; |
| compatible = "ibm,opal-firmware"; |
| ml-version = [4d 4c 20 46 57 37 37 30 2e 32 30 20 46 57 37 37 30 2e 32 30 20 46 57 37 37 30 2e 32 30]; |
| mi-version = <0x4d49205a 0x4c373730 0x5f303735 0x205a4c37 0x37305f30 0x3735205a 0x4c373730 0x5f303735>; |
| version = "skiboot-5.0-rc2"; |
| phandle = <0x8e>; |
| linux,phandle = <0x8e>; |
| }; |
| |
| ``compatible`` |
| property describes OPAL compatibility. |
| |
| ``symbol-map`` |
| property describes OPAL symbol start address and size. |
| |
| ``version`` |
| property describes OPAL version. It replaced a property named 'git-id' early |
| in the POWER8 lifecycle, so may not always be present. It will be absent on |
| IBM FSP based systems running firmware prior to FW840. The 'version' property |
| is present on all GA POWER8 BMC systems. |
| |
| On POWER9 and above, it is always present. |
| |
| ``mi-version`` |
| property describes Microcode Image. Only on IBM FSP systems. |
| Will (likely) not be present on POWER9 systems. |
| |
| ``ml-version`` |
| property describes Microcode Level. Only on IBM FSP systems. |
| Will (likely) not be present on POWER9 systems. |
| |
| MI/ML format |
| ------------ |
| :: |
| |
| <ML/MI> <T side version> <P side version> <boot side version> |
