From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5B1312B6D for ; Mon, 21 Aug 2023 21:54:17 +0000 (UTC) Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAEF9132 for ; Mon, 21 Aug 2023 14:54:14 -0700 (PDT) Received: by mail-pl1-x632.google.com with SMTP id d9443c01a7336-1bf55a81eeaso13009195ad.0 for ; Mon, 21 Aug 2023 14:54:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1692654854; x=1693259654; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=6DTVIyEHZe6SD1UimK8k8D0JPmC/pZgkgR0AvAu/7+0=; b=M8p+98CFhqF+zD3mxd4Ui1R8CgKQcmtcSqviUjEhBLad3fx3a00zoCObqQo9PSEvhe w0GeQaATB5yizzr6LJxEXCclogd9hev+GhmHEf4TwEV/v/YvXZUSuX9AatFIi2UqDMdl 9LoB9M3ubEmr98NRbhkqrDLB49LMPt5Lkbgs8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692654854; x=1693259654; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=6DTVIyEHZe6SD1UimK8k8D0JPmC/pZgkgR0AvAu/7+0=; b=XFAc8EoBVPD6EH7TLaKZK8aPGD0TKjGGT+9y0kFMqAVir943IkOzmb6n2sKjQv5oGG F5vvoTX9zgEuITQffNn/xoHQfA0GBKgVAzYTbTOGa2yJH77e6DJzk+FSzDGwMtLyNBpP kOTUQJuWcqWbh+Mr0hBEdKOk1Eyx4p5wPuZeuV+5lAkRL1qQ0ybE4tShQP58tDsxl85Q qMg6hkuqy3TfGgkfmy3Ii6q2Q7fNgZ1Y0JzwLRGjru8PnrwQeWoAjmJyYZTzzICkWcBN IjT5F1SpeJIedw/HkTG0Nl/xF8c+7de5Okfs3cLd7TjxwCnrWCiYa3/95+oicHMO48dj OyNw== X-Gm-Message-State: AOJu0YyrxIwRgRB8hTpznQQ5POEwb/L2C0BD7oQNm2lqe9oUKB48sEso EeYtKpOcIoUCzuccbfoGMS5AKw== X-Google-Smtp-Source: AGHT+IHh9ty2CycuUXpwEMLBU6aXGOZVQkATtihtpRrC5tv87ckbu2bHDsjEx/325B+xJRlVLd7iRw== X-Received: by 2002:a17:903:278f:b0:1b8:c1f:fcfc with SMTP id jw15-20020a170903278f00b001b80c1ffcfcmr4911565plb.11.1692654854316; Mon, 21 Aug 2023 14:54:14 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id t24-20020a1709028c9800b001bb1f0605b2sm7487455plo.214.2023.08.21.14.54.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Aug 2023 14:54:13 -0700 (PDT) From: Florian Fainelli To: stable@vger.kernel.org Cc: Justin Chen , Florian Fainelli , Jakub Kicinski , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Paolo Abeni , netdev@vger.kernel.org (open list:BROADCOM ETHERNET PHY DRIVERS), linux-kernel@vger.kernel.org (open list), Greg Kroah-Hartman , Sasha Levin Subject: [PATCH stable 4.14] net: phy: broadcom: stub c45 read/write for 54810 Date: Mon, 21 Aug 2023 14:54:10 -0700 Message-Id: <20230821215410.3123513-1-florian.fainelli@broadcom.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <2023082134-chain-tubular-c681@gregkh> References: <2023082134-chain-tubular-c681@gregkh> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000056776a060375ebf1" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net --00000000000056776a060375ebf1 Content-Transfer-Encoding: 8bit From: Justin Chen commit 096516d092d54604d590827d05b1022c8f326639 upstream The 54810 does not support c45. The mmd_phy_indirect accesses return arbirtary values leading to odd behavior like saying it supports EEE when it doesn't. We also see that reading/writing these non-existent MMD registers leads to phy instability in some cases. Fixes: b14995ac2527 ("net: phy: broadcom: Add BCM54810 PHY entry") Signed-off-by: Justin Chen Reviewed-by: Florian Fainelli Link: https://lore.kernel.org/r/1691901708-28650-1-git-send-email-justin.chen@broadcom.com Signed-off-by: Jakub Kicinski [florian: resolved conflicts in 4.14] Signed-off-by: Florian Fainelli --- drivers/net/phy/broadcom.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 97e017a54eb5..2fbb1277b3a8 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -403,6 +403,17 @@ static int bcm5482_read_status(struct phy_device *phydev) return err; } +static int bcm54810_read_mmd(struct phy_device *phydev, int devnum, u16 regnum) +{ + return -EOPNOTSUPP; +} + +static int bcm54810_write_mmd(struct phy_device *phydev, int devnum, u16 regnum, + u16 val) +{ + return -EOPNOTSUPP; +} + static int bcm5481_config_aneg(struct phy_device *phydev) { struct device_node *np = phydev->mdio.dev.of_node; @@ -650,6 +661,8 @@ static struct phy_driver broadcom_drivers[] = { .name = "Broadcom BCM54810", .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, + .read_mmd = bcm54810_read_mmd, + .write_mmd = bcm54810_write_mmd, .config_init = bcm54xx_config_init, .config_aneg = bcm5481_config_aneg, .read_status = genphy_read_status, -- 2.34.1 --00000000000056776a060375ebf1 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQeQYJKoZIhvcNAQcCoIIQajCCEGYCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3QMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA vbCmXCcsbZ/a0fRIQMBxp4gJnnyeneFYpEtNydrZZ+GeKSMdHiDgXD1UnRSIudKo+moQ6YlCOu4t rVWO/EiXfYnK7zeop26ry1RpKtogB7/O115zultAz64ydQYLe+a1e/czkALg3sgTcOOcFZTXk38e aqsXsipoX1vsNurqPtnC27TWsA7pk4uKXscFjkeUE8JZu9BDKaswZygxBOPBQBwrA5+20Wxlk6k1 e6EKaaNaNZUy30q3ArEf30ZDpXyfCtiXnupjSK8WU2cK4qsEtj09JS4+mhi0CTCrCnXAzum3tgcH cHRg0prcSzzEUDQWoFxyuqwiwhHu3sPQNmFOMwIDAQABo4IB2jCCAdYwDgYDVR0PAQH/BAQDAgGG MGAGA1UdJQRZMFcGCCsGAQUFBwMCBggrBgEFBQcDBAYKKwYBBAGCNxQCAgYKKwYBBAGCNwoDBAYJ KwYBBAGCNxUGBgorBgEEAYI3CgMMBggrBgEFBQcDBwYIKwYBBQUHAxEwEgYDVR0TAQH/BAgwBgEB /wIBADAdBgNVHQ4EFgQUljPR5lgXWzR1ioFWZNW+SN6hj88wHwYDVR0jBBgwFoAUj/BLf6guRSSu TVD6Y5qL3uLdG7wwegYIKwYBBQUHAQEEbjBsMC0GCCsGAQUFBzABhiFodHRwOi8vb2NzcC5nbG9i YWxzaWduLmNvbS9yb290cjMwOwYIKwYBBQUHMAKGL2h0dHA6Ly9zZWN1cmUuZ2xvYmFsc2lnbi5j b20vY2FjZXJ0L3Jvb3QtcjMuY3J0MDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9jcmwuZ2xvYmFs c2lnbi5jb20vcm9vdC1yMy5jcmwwWgYDVR0gBFMwUTALBgkrBgEEAaAyASgwQgYKKwYBBAGgMgEo CjA0MDIGCCsGAQUFBwIBFiZodHRwczovL3d3dy5nbG9iYWxzaWduLmNvbS9yZXBvc2l0b3J5LzAN BgkqhkiG9w0BAQsFAAOCAQEAdAXk/XCnDeAOd9nNEUvWPxblOQ/5o/q6OIeTYvoEvUUi2qHUOtbf jBGdTptFsXXe4RgjVF9b6DuizgYfy+cILmvi5hfk3Iq8MAZsgtW+A/otQsJvK2wRatLE61RbzkX8 9/OXEZ1zT7t/q2RiJqzpvV8NChxIj+P7WTtepPm9AIj0Keue+gS2qvzAZAY34ZZeRHgA7g5O4TPJ /oTd+4rgiU++wLDlcZYd/slFkaT3xg4qWDepEMjT4T1qFOQIL+ijUArYS4owpPg9NISTKa1qqKWJ jFoyms0d0GwOniIIbBvhI2MJ7BSY9MYtWVT5jJO3tsVHwj4cp92CSFuGwunFMzCCA18wggJHoAMC AQICCwQAAAAAASFYUwiiMA0GCSqGSIb3DQEBCwUAMEwxIDAeBgNVBAsTF0dsb2JhbFNpZ24gUm9v dCBDQSAtIFIzMRMwEQYDVQQKEwpHbG9iYWxTaWduMRMwEQYDVQQDEwpHbG9iYWxTaWduMB4XDTA5 MDMxODEwMDAwMFoXDTI5MDMxODEwMDAwMFowTDEgMB4GA1UECxMXR2xvYmFsU2lnbiBSb290IENB IC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMTCkdsb2JhbFNpZ24wggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDMJXaQeQZ4Ihb1wIO2hMoonv0FdhHFrYhy/EYCQ8eyip0E XyTLLkvhYIJG4VKrDIFHcGzdZNHr9SyjD4I9DCuul9e2FIYQebs7E4B3jAjhSdJqYi8fXvqWaN+J J5U4nwbXPsnLJlkNc96wyOkmDoMVxu9bi9IEYMpJpij2aTv2y8gokeWdimFXN6x0FNx04Druci8u nPvQu7/1PQDhBjPogiuuU6Y6FnOM3UEOIDrAtKeh6bJPkC4yYOlXy7kEkmho5TgmYHWyn3f/kRTv riBJ/K1AFUjRAjFhGV64l++td7dkmnq/X8ET75ti+w1s4FRpFqkD2m7pg5NxdsZphYIXAgMBAAGj QjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBSP8Et/qC5FJK5N UPpjmove4t0bvDANBgkqhkiG9w0BAQsFAAOCAQEAS0DbwFCq/sgM7/eWVEVJu5YACUGssxOGhigH M8pr5nS5ugAtrqQK0/Xx8Q+Kv3NnSoPHRHt44K9ubG8DKY4zOUXDjuS5V2yq/BKW7FPGLeQkbLmU Y/vcU2hnVj6DuM81IcPJaP7O2sJTqsyQiunwXUaMld16WCgaLx3ezQA3QY/tRG3XUyiXfvNnBB4V 14qWtNPeTCekTBtzc3b0F5nCH3oO4y0IrQocLP88q1UOD5F+NuvDV0m+4S4tfGCLw0FREyOdzvcy a5QBqJnnLDMfOjsl0oZAzjsshnjJYS8Uuu7bVW/fhO4FCU29KNhyztNiUGUe65KXgzHZs7XKR1g/ XzCCBVgwggRAoAMCAQICDBP8P9hKRVySg3Qv5DANBgkqhkiG9w0BAQsFADBbMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTExMC8GA1UEAxMoR2xvYmFsU2lnbiBHQ0MgUjMg UGVyc29uYWxTaWduIDIgQ0EgMjAyMDAeFw0yMjA5MTAxMjE4MTFaFw0yNTA5MTAxMjE4MTFaMIGW MQswCQYDVQQGEwJJTjESMBAGA1UECBMJS2FybmF0YWthMRIwEAYDVQQHEwlCYW5nYWxvcmUxFjAU BgNVBAoTDUJyb2FkY29tIEluYy4xGTAXBgNVBAMTEEZsb3JpYW4gRmFpbmVsbGkxLDAqBgkqhkiG 9w0BCQEWHWZsb3JpYW4uZmFpbmVsbGlAYnJvYWRjb20uY29tMIIBIjANBgkqhkiG9w0BAQEFAAOC AQ8AMIIBCgKCAQEA+oi3jMmHltY4LMUy8Up5+1zjd1iSgUBXhwCJLj1GJQF+GwP8InemBbk5rjlC UwbQDeIlOfb8xGqHoQFGSW8p9V1XUw+cthISLkycex0AJ09ufePshLZygRLREU0H4ecNPMejxCte KdtB4COST4uhBkUCo9BSy1gkl8DJ8j/BQ1KNUx6oYe0CntRag+EnHv9TM9BeXBBLfmMRnWNhvOSk nSmRX0J3d9/G2A3FIC6WY2XnLW7eAZCQPa1Tz3n2B5BGOxwqhwKLGLNu2SRCPHwOdD6e0drURF7/ Vax85/EqkVnFNlfxtZhS0ugx5gn2pta7bTdBm1IG4TX+A3B1G57rVwIDAQABo4IB3jCCAdowDgYD VR0PAQH/BAQDAgWgMIGjBggrBgEFBQcBAQSBljCBkzBOBggrBgEFBQcwAoZCaHR0cDovL3NlY3Vy ZS5nbG9iYWxzaWduLmNvbS9jYWNlcnQvZ3NnY2NyM3BlcnNvbmFsc2lnbjJjYTIwMjAuY3J0MEEG CCsGAQUFBzABhjVodHRwOi8vb2NzcC5nbG9iYWxzaWduLmNvbS9nc2djY3IzcGVyc29uYWxzaWdu MmNhMjAyMDBNBgNVHSAERjBEMEIGCisGAQQBoDIBKAowNDAyBggrBgEFBQcCARYmaHR0cHM6Ly93 d3cuZ2xvYmFsc2lnbi5jb20vcmVwb3NpdG9yeS8wCQYDVR0TBAIwADBJBgNVHR8EQjBAMD6gPKA6 hjhodHRwOi8vY3JsLmdsb2JhbHNpZ24uY29tL2dzZ2NjcjNwZXJzb25hbHNpZ24yY2EyMDIwLmNy bDAoBgNVHREEITAfgR1mbG9yaWFuLmZhaW5lbGxpQGJyb2FkY29tLmNvbTATBgNVHSUEDDAKBggr BgEFBQcDBDAfBgNVHSMEGDAWgBSWM9HmWBdbNHWKgVZk1b5I3qGPzzAdBgNVHQ4EFgQUUwwfJ6/F KL0fRdVROal/Lp4lAF0wDQYJKoZIhvcNAQELBQADggEBAKBgfteDc1mChZjKBY4xAplC6uXGyBrZ kNGap1mHJ+JngGzZCz+dDiHRQKGpXLxkHX0BvEDZLW6LGOJ83ImrW38YMOo3ZYnCYNHA9qDOakiw 2s1RH00JOkO5SkYdwCHj4DB9B7KEnLatJtD8MBorvt+QxTuSh4ze96Jz3kEIoHMvwGFkgObWblsc 3/YcLBmCgaWpZ3Ksev1vJPr5n8riG3/N4on8gO5qinmmr9Y7vGeuf5dmZrYMbnb+yCBalkUmZQwY NxADYvcRBA0ySL6sZpj8BIIhWiXiuusuBmt2Mak2eEv0xDbovE6Z6hYyl/ZnRadbgK/ClgbY3w+O AfUXEZ0xggJtMIICaQIBATBrMFsxCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52 LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBSMyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwAgwT /D/YSkVckoN0L+QwDQYJYIZIAWUDBAIBBQCggdQwLwYJKoZIhvcNAQkEMSIEIDiVOz1DqtzYVMcq A1j8G5RwhjQkTStHPDWetRMIUnHfMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcN AQkFMQ8XDTIzMDgyMTIxNTQxNFowaQYJKoZIhvcNAQkPMVwwWjALBglghkgBZQMEASowCwYJYIZI AWUDBAEWMAsGCWCGSAFlAwQBAjAKBggqhkiG9w0DBzALBgkqhkiG9w0BAQowCwYJKoZIhvcNAQEH MAsGCWCGSAFlAwQCATANBgkqhkiG9w0BAQEFAASCAQDeqgwLW2qYPYn8eK9Q2Tc/hVKwXPnA0osg CgAoRtQyxfYZgDYOOwINFWAHsg8ZvYJ+MCTuArXUD3uXbCea/gLJ6UqlxCYjov9E4j5nf2EKSFF+ 4xNejFZ36TNZwNyW1Pwqe5iHw4TEJIei+m7Fr48De9QtHan3n7wFiKqfAOe1dJlxAsQEuEEvUNnR 8Hwl6/vIs1DvhpHiy93Te9yP6O5wDAjTHtVeuYOw7pd6VuuWJRtt5Q8GusLqjhGp5T+4HgbpXAWA PCt7/D6V0jercIF0lsrw1Tg2qamfZoRbSzcNuKITADB1UpyCU2a73eGhskkd4AfdG8f893nQRCIk popa --00000000000056776a060375ebf1--