[U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC

[Thomas Chou]

Hi Wills,

Please note the following,

1. add this uart to drivers/serial/Kconfig .

2. add debug uart support. see include/debug_uart.h . also add it to Kconfig

3. cp linux/Documentation/devicetree/bindings/serial/qca,ar9330-uart.txt
       u-boot/doc/device-tree-bindings/serial/

4. to save change to xxx_defconfig, run
    make savedefconfig
    cp defconfig configs/xxx_defconfig

Best regards,
Thomas