Hi,
I have a VIM1 since a long time ago, I use it mainly with LibreElec.
I would like to upgrade the version of LibreElec I am using because it is quite outdated (9.2 ^^").
Sadly, I am having troubles getting my Khadas VIM1 board into upgrade mode.
I may have screwed something at one moment, but I do not have some needed commands in U-Boot:
kvim# run update
Unknown command 'update' - try 'help'
Unknown command 'sdc_burn' - try 'help'
kvim# echo $update
run usb_burning; run sdc_burning;
kvim# echo $usb_burning
update 1000
kvim# echo $sdc_burning
sdc_burn ${sdcburncfg}
So, is there a way for me to build a U-Boot with these commands?
Then, how can I boot from this custom U-Boot.
I also tried doing the M-register way but I had no luck.
Also, please note that I tried booting on the sdcard (to simulate update) by hand but I failed so far.
To do so, I first took a look at boot.ini:
#------------------------------------------------------------------------------------------------------
#
# boot.ini
#
# WARNING DO NOT MODIFY THIS FILE! ALL CHANGES WILL BE LOST WITH THE NEXT UPDATE!
# Set your own settings in config.ini
#
#------------------------------------------------------------------------------------------------------
KHADAS-UBOOT-CONFIG
setenv bootrootfs "BOOT_IMAGE=kernel.img boot=UUID=0505-4706 disk=UUID=a4e24c60-95da-4b3a-85cb-be3d994ee96c"
setenv condev "ttyS0,115200"
setenv hdmimode "1080p60hz"
setenv hdmioutput "1"
setenv vpu "1"
setenv libreelec "quiet"
setenv hdmi_cec "1"
setenv uenv_addr 0x13000000
fatload mmc 0:1 ${loadaddr} kernel.img
fatload mmc 0:1 ${dtb_mem_addr} dtb.img
if fatload mmc 0:1 ${uenv_addr} config.ini; then env import -t ${uenv_addr} $filesize; fi
setenv khadas "no_console_suspend logo=osd1,loaded,0x3f800000,${hdmimode} vout=${hdmimode},enable hdmimode=${hdmimode} cvbsmode=nocvbs consoleblank=0"
if test "${hdmi_cec}" = "1"; then setenv cec "hdmitx=cec17"; fi
setenv bootargs "console=${condev} ${bootrootfs} ${khadas} ${cec} ${libreelec}"
# Device tree modifications
bootm start
bootm loados
bootm fdt
if test "${vpu}" = "0"; then fdt rm /mesonstream; fdt rm /vdec; fdt rm /ppmgr; fi
if test "${hdmioutput}" = "0"; then fdt rm /mesonfb; fi
# Remove aml partition layout from device tree (required for eMMC boot)
fdt rm /partitions
bootm prep
# Boot the board
bootm go
And I adapted it to my sdcard:
# UUIDs are taken from:
# kvim#mmc part
#
# Partition Map for MMC device 0 -- Partition Type: DOS
#
# Part Start Sector Num Sectors UUID Type
# 1 8192 1048576 3ec82689-01 0c Boot
# 2 1056768 29478912 3ec82689-02 83
kvim# setenv bootrootfs "BOOT_IMAGE=kernel boot=UUID=3ec82689-01 disk=UUID=3ec82689-02"
kvim# setenv condev "ttyS0,115200"
kvim# setenv hdmimode "1080p60hz"
kvim# setenv hdmioutput "1"
kvim# setenv vpu "1"
kvim# setenv libreelec "quiet"
kvim# setenv hdmi_cec "1"
kvim# setenv uenv_addr 0x13000000
# Taken from
# kvim# fatls mmc 1
# extlinux/
# amlogic/
# 12643197 kernel
# 132276224 system
# 48 kernel.md5
# 48 system.md5
#
# 4 file(s), 2 dir(s)
# And:
# kvim#fatls mmc 1 amlogic
# ./
# ../
# ...
# 41392 meson-gxl-s905x-khadas-vim.dtb
# ...
#
# 75 file(s), 2 dir(s)
kvim# fatload mmc 1:1 ${loadaddr} kernel
kvim# fatload mmc 1:1 ${dtb_mem_addr} amlogic/meson-gxl-s905x-khadas-vim.dtb
kvim# if fatload mmc 0:1 ${uenv_addr} config.ini; then env import -t ${uenv_addr} $filesize; fi
kvim# setenv khadas "no_console_suspend vout=${hdmimode},enable hdmimode=${hdmimode} cvbsmode=nocvbs "
kvim# if test "${hdmi_cec}" = "1"; then setenv cec "hdmitx=cec17"; fi
kvim# setenv bootargs "console=${condev} ${bootrootfs} ${khadas} ${cec} ${libreelec}"
kvim# bootm start
kvim# bootm loados
kvim# bootm fdt
kvim# if test "${vpu}" = "0"; then fdt rm /mesonstream; fdt rm /vdec; fdt rm /ppmgr; fi
kvim# if test "${hdmioutput}" = "0"; then fdt rm /mesonfb; fi
kvim# fdt rm /partitions
kvim# bootm prep
kvim# bootm go
uboot time: 1081315020 us
domain-0 init dvfs: 4
Sadly, the kernel prints nothing.
But, I am not really sure about the values for the UUIDs, particularly as I do not know from where the original values, i.e. boot=UUID=0505-4706 disk=UUID=a4e24c60-95da-4b3a-85cb-be3d994ee96c come from.
So, does anyone have an idea on how I can boot to this sdcard to then upgrade my system?
Best regards.