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How to use DM3730's UART4 as a serial console?

jesualdo.ros
Prodigy 10 points
Other Parts Discussed in Thread: DM3730

Hi,

We have self-designed board with DM3730 that boots up Linux from uSD Card with U-Boot. We want to set UART4 as linux serial console to comunicate with DM3730s because UART1,2,3 are used for other purposes.

We have tried configuring Linux DVSDK for DM3730/3725 Digital Media Processors, but no results. Anyone Knows a way to set UART4 as the linux console?

Best regards

Aldo

  • 0
    Guru 26430 points

    Assuming you've got the UART 4 init. pinmux, clocks. etc. all sorted in the board init:

    - Change the bootargs in U-boot to specify a different terminal, eg console=ttyO3,115200n8 or console=ttyS3,115200n8 for UART 4.

    - Change the /etc/inittab to spawn a login shell on the desired tty.