From: Madalin Bucur <madalin.bucur@oss.nxp.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: robh+dt@kernel.org, mark.rutland@arm.com,
devicetree@vger.kernel.org,
Madalin Bucur <madalin.bucur@oss.nxp.com>
Subject: [PATCH net 0/3] net: fsl/fman: address erratum A011043
Date: Wed, 22 Jan 2020 15:20:26 +0200 [thread overview]
Message-ID: <1579699229-5948-1-git-send-email-madalin.bucur@oss.nxp.com> (raw)
This addresses a HW erratum on some QorIQ DPAA devices.
MDIO reads to internal PCS registers may result in having
the MDIO_CFG[MDIO_RD_ER] bit set, even when there is no
error and read data (MDIO_DATA[MDIO_DATA]) is correct.
Software may get false read error when reading internal
PCS registers through MDIO. As a workaround, all internal
MDIO accesses should ignore the MDIO_CFG[MDIO_RD_ER] bit.
When the issue was present, one could see such errors
during boot:
mdio_bus ffe4e5000: Error while reading PHY0 reg at 3.3
Madalin Bucur (3):
dt-bindings: net: add fsl,erratum-a011043
powerpc/fsl/dts: add fsl,erratum-a011043
net/fsl: treat fsl,erratum-a011043
Documentation/devicetree/bindings/net/fsl-fman.txt | 13 +++++++++++++
.../boot/dts/fsl/qoriq-fman3-0-10g-0-best-effort.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0.dtsi | 1 +
.../boot/dts/fsl/qoriq-fman3-0-10g-1-best-effort.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-0.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-1.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-2.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-3.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-4.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-5.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-0.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-1.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-0.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-1.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-2.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-3.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-4.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-5.dtsi | 1 +
drivers/net/ethernet/freescale/xgmac_mdio.c | 7 ++++++-
20 files changed, 37 insertions(+), 1 deletion(-)
--
2.1.0
next reply other threads:[~2020-01-22 13:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-22 13:20 Madalin Bucur [this message]
2020-01-22 13:20 ` [PATCH net 1/3] dt-bindings: net: add fsl,erratum-a011043 Madalin Bucur
2020-01-22 13:20 ` [PATCH net 2/3] powerpc/fsl/dts: " Madalin Bucur
2020-01-22 13:20 ` [PATCH net 3/3] net/fsl: treat fsl,erratum-a011043 Madalin Bucur
2020-01-23 20:17 ` [PATCH net 0/3] net: fsl/fman: address erratum A011043 David Miller
2020-01-23 21:09 ` Florian Fainelli
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