1. sunxi-common.h
  3. /* Serial & console */
  4. #define CONFIG_SYS_NS16550_SERIAL
  5. /* ns16550 reg in the low bits of cpu reg */
  6. #define CONFIG_SYS_NS16550_CLK 24000000
  7. #ifndef CONFIG_DM_SERIAL
  8. # define CONFIG_SYS_NS16550_REG_SIZE -4
  9. # define CONFIG_SYS_NS16550_COM1 SUNXI_UART0_BASE
  10. # define CONFIG_SYS_NS16550_COM2 SUNXI_UART1_BASE
  11. # define CONFIG_SYS_NS16550_COM3 SUNXI_UART2_BASE
  12. # define CONFIG_SYS_NS16550_COM4 SUNXI_UART3_BASE
  13. # define CONFIG_SYS_NS16550_COM5 SUNXI_R_UART_BASE
  14. #endif

What is the baudrate of Serial?

24000000/16=1500000 ???

1.5Mb..