Which system do you use? Android, Ubuntu, OOWOW or others?
Ubuntu 22.04
Which version of system do you use? Khadas official images, self built images, or others?
Official image
Please describe your issue below:
Frankly speaking, I’m a beginner at embedded world. ^^;;
I’d like to know the booting sequence of Ubuntu linux on VIM4 so I captured the booting log at my VIM4 and the log below is the first part of the booting log.
I know the Uboot is bootloader.
However the log below was output before the Uboot.
What’s the BL2/BL2E/BL2X… ?
And the initialization of LPDDR4 is not do in uboot but do in BL2 ?
Then where can I find the source code of BL2…?
I’d like to see the source code.
Post a console log of your issue below:
T7:BL:055c20;ID:9056601109611515;FEAT:30F:1FFF0000:B002F:1;......
Bl2_early_platform_setup: indicates bl2ex flow!
OTP_LIC00 : 0f0300000000ff1f2f000b0000000000
OTP_LIC10 : 008207000001fc000c00001000000300
OTP_LIC20 : ffffffbfffff0700ff80008003000003
OTP_LIC30 : 00000002010000008f03000203000000
TE: 303354
BL2 Built : 17:12:14, May 5 2022. t7 origin/master gcad8fc9 - jenkins@walle02-sh
Board ID = 5
Set sys clock to 24Mhz
syspll is 1512Mhz. Locked
sys1pll is 1608Mhz. Locked
Set sys clock to 167Mhz
gp0pll is 0Mhz. Locked
bl2_platform_setup
boot area list:
1STBLOB 00000200 00040000
BL2E 00040200 00013000
BL2X 00053200 00011000
DDRFIP 00064200 00040000
DEVFIP 000a4200 00300000
s_setup from rom:00010081
dma mode
derive RSPK OK
DDR driver_vesion: AML_S_PHY_T7_1_16 build time: May 5 2022 17:12:08
ddr id: 0
ddr clk to 2016MHz
PIEI done
Cfg max: 2, cur: 1. Board id: 255. Force loop cfg
LPDDR4 probe
ddr clk to 2016MHz
Check phy result
INFO : End of CA training
INFO : End of initialization
INFO : Training has run successfully!
Check phy result
