Em ter, 2019-09-24 às 18:08 -0400, Simon South escreveu:
This is output from Rockchip's binary-only loader, which always resets the UART speed to 1.5Mbps. But it should be running before the U-Boot SPL, not after it.
I use NetBSD-9 and pkgsrc to build the u-bootThe NetBSD builds a fat32 partition starting at offset 32768 with 80Mb that holds the u-boot and boot logic for the rockchip
How are you building the microSD-card image? Here are the commands I've been using to build working images for the ROCK64:
I burn the image on the sd card, and than I write the u-boot imgfileusing the command: dd if=/usr/pkg/share/u- boot/rock64/rksd_loader.img of=/dev/rsd0d seek=64 conv=syncnote that NetBSD only uses ONE boot file... In the fat32 partition there are 2 config files cmdline.txt:root=ld0a console=fb config.txt:arm_64bit=1kernel=netbsd.imgkernel_address=0x200000enable_uart=1force_turbo=0 You said: Rockchip's binary-only loaderalways resets the UART speed to 1.5Mbps So the binary-only loader is it within the rockchip or makes part of the u-boot code??? why does the Rockchip's binary-only loader is unable to detect the serial once I change the baud rate??? Thanks for your help Sergio