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authorEmmanuel Vadot <manu@FreeBSD.org>2020-02-28 15:14:48 +0000
committerEmmanuel Vadot <manu@FreeBSD.org>2020-02-28 15:14:48 +0000
commit995ee34fd27211af598f9adf111cb49609d1b3de (patch)
tree26bf77523200f7648333ede47840b29088cf66eb /Bindings/net/fsl-fman.txt
parentc3f1cfc76c9a579767282ac81d2be1cfb20aea92 (diff)
downloadsrc-995ee34fd27211af598f9adf111cb49609d1b3de.tar.gz
src-995ee34fd27211af598f9adf111cb49609d1b3de.zip
DTS: Update the device-tree files to Linux 5.5vendor/device-tree/5.5
Notes
Notes: svn path=/vendor/device-tree/dist/; revision=358428 svn path=/vendor/device-tree/5.5/; revision=358429; tag=vendor/device-tree/5.5
Diffstat (limited to 'Bindings/net/fsl-fman.txt')
-rw-r--r--Bindings/net/fsl-fman.txt13
1 files changed, 13 insertions, 0 deletions
diff --git a/Bindings/net/fsl-fman.txt b/Bindings/net/fsl-fman.txt
index 299c0dcd67db..250f8d8cdce4 100644
--- a/Bindings/net/fsl-fman.txt
+++ b/Bindings/net/fsl-fman.txt
@@ -403,6 +403,19 @@ PROPERTIES
The settings and programming routines for internal/external
MDIO are different. Must be included for internal MDIO.
+- fsl,erratum-a011043
+ Usage: optional
+ Value type: <boolean>
+ Definition: Indicates the presence of the A011043 erratum
+ describing that the MDIO_CFG[MDIO_RD_ER] bit may be falsely
+ set when reading internal PCS registers. 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.
+
For internal PHY device on internal mdio bus, a PHY node should be created.
See the definition of the PHY node in booting-without-of.txt for an
example of how to define a PHY (Internal PHY has no interrupt line).