Lukasz Majewski 949feef062 arm: Add extra boot device (UART) to run Ymodem u-boot.img boot on XEA (imx28) ... This commit enables imx28 based XEA board's u-boot.sb (SPL) to download u-boot proper (u-boot.img) via Ymodem protocol. This is extremely useful in the recovery scenario where u-boot.sb is downloaded via uuu utility to SDRAM [*], and then one can upload u-boot proper via serial console to fully debrick the device. Note - debricking procedure of imx28 devices: - NXP's original USB based tools (like mxsldr or uuu) expect single u-boot.sb which is a relic of the old U-Boot (~2013) without SPL and U-Boot proper distinction. [*] On Host: ------------ cat << EOF > imx28_xea.lst uuu_version 1.3.0 SDPS: boot -f /srv/tftp/xea/u-boot.sb SDPU: done EOF Please start picocom: sudo picocom -b 115200 -s "sz -vv" /dev/ttyUSB1 sudo ./uuu/uuu -V imx28_xea.lst On the U-boot console one shall see: Trying to boot from UART CCC Then please press CTRL+A, S and type u-boot.img Signed-off-by: Lukasz Majewski <lukma@denx.de> Acked-by: Peng Fan <peng.fan@nxp.com>		2020-07-16 11:20:33 +02:00
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display5	common: Drop linux/delay.h from common header	2020-05-18 21:19:23 -04:00
mccmon6	common: Drop linux/delay.h from common header	2020-05-18 21:19:23 -04:00
xea	arm: Add extra boot device (UART) to run Ymodem u-boot.img boot on XEA (imx28)	2020-07-16 11:20:33 +02:00