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| author | Birger Koblitz <git@birger-koblitz.de> | 2021-09-13 20:44:43 +0200 |
|---|---|---|
| committer | John Crispin <john@phrozen.org> | 2021-10-09 08:25:06 +0200 |
| commit | 76f60470a192f8ce585ac3289d3037b54d98ba11 (patch) | |
| tree | 2cbf40a6ff59d12dc3168cc0cf2314445e044143 /README.md | |
| parent | 88936e7e8278ef82c0937e47be6b4556b3ef708a (diff) | |
| download | upstream-76f60470a192f8ce585ac3289d3037b54d98ba11.tar.gz upstream-76f60470a192f8ce585ac3289d3037b54d98ba11.tar.bz2 upstream-76f60470a192f8ce585ac3289d3037b54d98ba11.zip | |
realtek: Fix bug when accessing external PHYs on SoCs older than Revision C
RTL8393 SoCs older than Revision C hang on accesses to PHYs with PHY address
larger or equal to the CPU-port (52). This will make scanning the MDIO bus
hang forever. Since the RTL8390 platform does not support more than
52 PHYs, return -EIO for phy addresses >= 52. Note that the RTL8390 family
of SoCs has a fixed mapping between port number and PHY-address.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Diffstat (limited to 'README.md')
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