AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-18 20:46:10 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
c7861adbe3
linux_dsm_epyc7002/arch
History
Vladimir Oltean c7861adbe3 ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect 
Each eTSEC MAC has its own TBI (SGMII) PCS and private MDIO bus.
But due to a DTS oversight, both SGMII-compatible MACs of the LS1021 SoC
are pointing towards the same internal PCS. Therefore nobody is
controlling the internal PCS of eTSEC0.

Upon initial ndo_open, the SGMII link is ok by virtue of U-boot
initialization. But upon an ifdown/ifup sequence, the code path from
ndo_open -> init_phy -> gfar_configure_serdes does not get executed for
the PCS of eTSEC0 (and is executed twice for MAC eTSEC1). So the SGMII
link remains down for eTSEC0. On the LS1021A-TWR board, to signal this
failure condition, the PHY driver keeps printing
'803x_aneg_done: SGMII link is not ok'.

Also, it changes compatible of mdio0 to "fsl,etsec2-mdio" to match
mdio1 device.

Fixes: 055223d4d2 ("ARM: dts: ls1021a: Enable the eTSEC ports on QDS and TWR")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-21 15:51:28 +08:00
..
alpha Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
arc kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
arm ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect 2019-04-21 15:51:28 +08:00
arm64 Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
c6x kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
csky kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
h8300 kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
hexagon kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
ia64 Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
m68k kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
microblaze Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
mips Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
nds32 kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
nios2 kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
openrisc kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
parisc Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
powerpc Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
riscv kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
s390 Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
sh kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
sparc Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
um Merge branch 'for-linus-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2019-03-15 15:07:32 -07:00
unicore32 kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
x86 Kbuild updates for v5.1 (2nd) 2019-03-17 13:25:26 -07:00
xtensa kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
.gitignore
Kconfig Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00