tree 5fe67d046144b4370dcb6cff74fc9312208b3ed6
parent 66a813e00e5d38d072f55df7003b9a152a5c506d
author Kuldeep Singh <kuldeep.singh@nxp.com> 1627981378 +0530
committer Jagan Teki <jagan@amarulasolutions.com> 1634984807 +0530

spi: nxp_fspi: Implement errata workaround for LS1028A

Errata ERR050568 description says that "Flash access by FlexSPI AHB
command may not work with platform frequency equal to 300 MHz" on
LS1028A.

By default, smaller length reads(equal to RX FIFO size) are done by IP
bus and larger length reads using AHB bus. For adding errata workaround,
use IP bus to read entire flash contents and disable AHB path when
platform frequency is 300Mhz.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>