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| /rk3399_rockchip-uboot/drivers/serial/ |
| H A D | serial_lpuart.c | 89e69fd4a96bcab2469d3d084ba335c6b925771a Tue Aug 19 15:54:28 UTC 2014 Stefan Agner <stefan@agner.ch> arm: vf610: lpuart: disable FIFO on initializaton
UART does not use the UART FIFO, but we should also not rely that
the UART FIFO is diabled by default. For instance, when loading
U-Boot using the boot ROMs serial downloader protocol over UART,
FIFO is enabled at U-Boot start time.
This patch disables the RX and TX FIFO, sets back their thresholds
and flushes them.
Signed-off-by: Stefan Agner <stefan@agner.ch>
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