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neutrinoxy
Contributor
Contributor
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Registered: ‎04-06-2018

UART_1 disappears after linux boot in QSPI bootmode

Hi,

I'm using UART_0 for u-boot/Linux and UART_0 for a R5 baremetal application. At boot, this R5 application loads u-boot, bl31 and Linux from flash into DDR, and wakes up A53. Then, it goes in a while loop and prints on UART. Everything works well when booting using 2019.2 xsct scripts . However, when I boot in QSPI mode (pmu firmware, fsbl and r5 application are packaged in a BOOT.BIN at the bottom of the flash), everything works well until the Linux login prompt on UART_0. My UART_0 is still responsive, but my UART_1 doesn't work anymore: prints from R5 application don't appear.

That's a strange situation. Do you have any idea about how to figure it out?

Best regards,

Neutrinoxy

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