[U-Boot] [PATCH 0/3] Fix for rare beaglebone ethernet failures
Grygorii Strashko
grygorii.strashko at ti.com
Fri Aug 24 16:37:51 UTC 2018
On 08/23/2018 06:41 AM, Sekhar Nori wrote:
> There have been reports of ethernet network failures on beagle
> bone black. These have been root caused to ethernet PHY latching
> to a different address on boot than what is programmed in DT.
>
> See: https://groups.google.com/d/msg/beagleboard/9mctrG26Mc8/1FuI_i5KW10J
>
> This patch series tries to workaround this suitaiton by patching
> device-tree passed to kernel with the correct address. As well as
> updating the PHY address U-Boot drivers themselves use.
>
> Tested on beaglebone black rev A4 by simulating the error condition
> I was also able to hit the actual hardware error once in a while.
>
> Sekhar Nori (3):
> drivers: net: cpsw: add support to update phy address
> board: ti: am335x: add support to fixup phy address
> configs: am335x_evm: enable OF_BOARD_SETUP
>
> board/ti/am335x/board.c | 78 ++++++++++++++++++++++++++++++++++++++++++++
> configs/am335x_evm_defconfig | 1 +
> drivers/net/cpsw.c | 29 ++++++++++++++++
> include/cpsw.h | 1 +
> 4 files changed, 109 insertions(+)
>
Reviewed-by: Grygorii Strashko <grygorii.strashko at ti.com>
--
regards,
-grygorii
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