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boundary=dda49a7eb14547398a92cd8d13a7d78afa9d0d5b3d65ebe7063bbb21050d; micalg=pgp-sha512; protocol="application/pgp-signature" Date: Thu, 05 Nov 2026 14:20:52 +0000 Message-Id: Cc: , , , Subject: Re: [PATCH 4/5] riscv: defconfig: Enable AT24 EEPROM and ONIE TLV layout From: "Troy Mitchell" To: "E Shattow" , "Troy Mitchell" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Yixun Lan" , "Paul Walmsley" , "Palmer Dabbelt" , "Albert Ou" , "Alexandre Ghiti" Content-Transfer-Encoding: quoted-printable X-Mailer: aerc 0.21.0-reader-ipc4 References: <20261105-k3-com260-module-sd-nor-mac-v1-0-138b39d74602@linux.spacemit.com> <20261105-k3-com260-module-sd-nor-mac-v1-4-138b39d74602@linux.spacemit.com> <0c4b79f0-383a-4884-8132-59dcb3487cd3@freeshell.de> In-Reply-To: <0c4b79f0-383a-4884-8132-59dcb3487cd3@freeshell.de> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpgz:linux.spacemit.com:qybglogicsvrgz:qybglogicsvrgz3a-0 X-QQ-XMAILINFO: M2z/kxGgDm0n/d0ck7D7Wy7+LrazgwpDU7hS6yDw3UK5ewC+b/5uO+Gq iM6zLuEOcmCP2iB0ze93/9myAu/90fCH8q46J0oNmlMqAG3O41HtewubMk6Mx8c16FkQEmS M0MYfZGz4tLTf4GDfgunyBJ8+i+wqhTutVb2j2iZb45S8zEVbEvUBHF2cogNMhIqXCjsOTp a7xhTQfXPw6eaM+SnFmUywcLuevDRuq8QbR2E6TCeMDZCA2Y6XXlii2Wo2pT+pLKLBoyKHI FWo235+466LogsjrYK5UqoEgZRo4qTDnxdW+TW9685O+Cz4NndKwhuHgc7sF+NITJoNjNwC 4jLYzEqSxNUNVljA/vz+RYoT1jRJJN6CB1gQvkD46QfZTy/Nk4HcuX1oQL+dJYn2iPKSVEk rzVSNBK3zxEtflwSifnXiGvBP5gmPUxooh6WZsViLw3zKw71oNYty+PqITPCOwAlnP2PxJ0 HGsEI3ZHITQBaGGYww6ZU1m63eKRSxSTQgDYAReJHRzDsRI/8puNtdDNCOsiQdQhvVL1qNJ 9TMpJcZkEd939OOBvJW9OAOmf0mAuo5Zv92HeKnJN1mEf1/m1xbCN73By4yHhkBG5ZWXxxI XlhNWQ+MIbTE5s/BreNM/UOnlPVEKupXpEwvWKp1noxh7sGrhRkZueEq3AJ2rVLRjuAeJxr 1Lgncm5mE0TBEcjd6P4MqGZ+Wft62aA1F8yB8Xz8baYu910+T3UQyp5AhkKwl4FhiW4/Pfv NDl87C+w7dRnKiDoSTdz5mfbtguvbEMGAlT2e1snZPgtuazL6nbah0yusZ3KatcGIKhetm/ NpdnWkWfbE8NNF3F/+rytMz7nP+lzxuFm/7z8xDurNpNoQts2suN2hRkja8gjP/+FdX5pB/ ECr/jvyeDW9IX96z0bMEFAQPbNZXZBdeDB1vCqKCFZ7razxSktKu4ofx4I3S+yrKlhQdRtI rZqEwZJ2cawO968XitdRzGN0+VAIm0SaKThV1XwhUJxV4cIsswd5dZgIK1N91YiI4xUA9zy EqCPkh39OWDugfa9LJBWxdu5/5sJXGjzcjJ7+WeImLHb34JFgwhDENmdVEvwmnbqZiQadV8 zGpyXi4MMA3UII4vBls2dCb7cISCexH3mR+4ni6IUaFEhnkgZB0Y9Zyr+2WFleWO4KZ875d rOvGbkNJ7BIwUTwNhUMUCZH50Q== X-QQ-XMRINFO: NS+P29fieYNwqS3WCnRCOn9D1NpZuCnCRA== X-QQ-SPAM: true X-QQ-RECHKSPAM: 3 --dda49a7eb14547398a92cd8d13a7d78afa9d0d5b3d65ebe7063bbb21050d Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Thu Nov 5, 2026 at 10:42 AM GMT, E Shattow wrote: > On 11/5/26 00:23, Troy Mitchell wrote: >> The OrangePi RV2 and R2S device trees take the Ethernet MAC address from >> the ONIE TLV data in an AT24 EEPROM, and the K3 CoM260 module stores its >> MAC address the same way. Without the EEPROM driver and the ONIE TLV >> layout, the MAC address lookup keeps returning -EPROBE_DEFER and the >> Ethernet controller never probes unless the bootloader passes a MAC >> address in the device tree. >>=20 >> Enable both drivers as built-in so the MAC address is available as soon >> as the Ethernet driver probes, including for network root file systems. > > This does not make sense for platforms which have no use for EEPROM > driver in Linux userspace. > >>=20 >> Signed-off-by: Troy Mitchell >> --- >> arch/riscv/configs/defconfig | 2 ++ >> 1 file changed, 2 insertions(+) >>=20 >> diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig >> index 04ae305d5511..a76f801d8eed 100644 >> --- a/arch/riscv/configs/defconfig >> +++ b/arch/riscv/configs/defconfig >> @@ -276,6 +276,8 @@ CONFIG_PHY_STARFIVE_JH7110_DPHY_RX=3Dm >> CONFIG_PHY_STARFIVE_JH7110_PCIE=3Dm >> CONFIG_PHY_STARFIVE_JH7110_USB=3Dm >> CONFIG_LIBNVDIMM=3Dy >> +CONFIG_NVMEM_LAYOUT_ONIE_TLV=3Dy >> +CONFIG_EEPROM_AT24=3Dy > > Enabled as module, please. Yes, you are right. Will be module in the next version. --=20 Troy Mitchell --dda49a7eb14547398a92cd8d13a7d78afa9d0d5b3d65ebe7063bbb21050d Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJcEABYKAD8WIQSL4Ay2cExaPXAQcU2YCe+A+TM0LwUCauyQxCEcdHJveS5taXRj aGVsbEBsaW51eC5zcGFjZW1pdC5jb20ACgkQmAnvgPkzNC9ZSwD6AxJbBe8W18yH nr4KCfjIsJCOqNmdf0vzp8XWweapmi4A/1NGR2u7q/A/7Ho7/TlsOtBYjUmXNKZ4 lwAjGYrg+mAL =AhUC -----END PGP SIGNATURE----- --dda49a7eb14547398a92cd8d13a7d78afa9d0d5b3d65ebe7063bbb21050d--