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Michal Simek authored
Sync logic with Linux kernel where TX empty flag is checked before char is sent. This logic is fixing problem with console on zynqmp platform. For example: DRAM: 2 GiB Enabling Caches... EL Level: �� sdhci@ff170000: 0 Using default environment Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
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