For zynq-7000 boards, we saw issues when u-boot/linux accessing the qspi. Issue is due to wrong dummy byte transfers for few of un-handled commands ex: 0x9F, 0x6, 0xe9, 0x4, 0x18, etc There are many unhandled commands which do not require dummy bytes but they can be followed by address cycles.
To fix this issue for above commands, the next upcoming tx bytes are not considered dummies rather sent to slave directly. Changes for V2: Fixed commit message Reordered to code, to avoid code duplication. Sai Pavan Boddu (1): xilinx_spips: send dummy cycles only if cmd requires it hw/ssi/xilinx_spips.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- 2.7.4