drivers/net/fsl_enetc.h specifies ENETC_BD_CNT "buffer descriptors count
must be a multiple of 8". This constant is set to
CONFIG_SYS_RX_ETH_BUFFER which defaults to 4.
All defconfigs enabling CONFIG_FSL_ENETC fortunately have it set to 8,
according to
./tools/qconfig.py -l -f CONFIG_FSL_ENETC '~CONFIG_SYS_RX_ETH_BUFFER=8'.
Let's make sure the default is sane by having it set to 8 when this
driver is enabled. Note that originally[1] it was said EEPRO100 and 405
EMAC should be 8 or higher. 405 (PPC405?) support seems to have been
dropped in commit b5e7c84f72 ("ppc4xx: remove ASH405 board"), 11 years
ago. Maybe there's something we can do for EEPRO100 though?
Start all lines with a tab instead of spaces.
Specify limitation for FSL_ENETC in the help text.
[1] commit 53cf9435cc ("- CFG_RX_ETH_BUFFER added.")
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
d172512690