Porting uboot on custom card

[rashmikj]

Hi, I am trying port Uboot in QSPI flash of custom card based on LS1046 processor using TF -A Boot Flow. The system stops after BL31 Phase.

NOTICE: Fixed DDR on board

NOTICE: 4 GB DDR4, 64-bit, CL=15, ECC on

NOTICE: BL2: v1.5(release):LSDK-20.04-update-290520-dirty

NOTICE: BL2: Built : 05:19:45, Mar 17 2021 NOTICE: BL2: Booting BL31

NOTICE: BL31: v1.5(release):LSDK-20.04-update-290520-dirty

NOTICE: BL31: Built : 05:26:59, Mar 17 2021

NOTICE: Welcome to LS1046 BL31 Phase

I am trying to generate fip.bin file using flex-builder -c atf -m ls1046ardb command. After building uboot , in which folder do i need to copy the bin file ? which defconfig file do in need to build to generate the uboot.bin file?

[yipingwang]

In u-boot source code, the configuration ls1046ardb_tfa_defconfig is used to build u-boot, you could get uboot_ls1046ardb_tfa.bin in folder build/firmware/u-boot/ls1046ardb/uboot_ls1046ardb_tfa.bin.

Please modify u-boot source code in packages/firmware/u-boot according to your custom board.

Probably you need to modify configs/ls1046ardb_tfa_defconfig, board/freescale/ls1046ardb/ and include/configs/ls1046ardb.h.

Then rebuild u-boot and atf, go to folder ~/flexbuild_lsdk2004, execute the following command.

$ rm -rf build/firmware/u-boot/ls1046ardb/

$ flex-builder -c atf -m ls1046ardb

You will get bl2_qspi.pbl and fip_uboot.bin in folder build/firmware/atf/ls1046ardb.

Flash bl2_qspi.pbl:
=> tftp 0xa0000000 bl2_qspi.pbl
=> sf erase 0x0 +$filesize && sf write 0xa0000000 0x0 $filesize
Flash fip.bin:
=> tftp 0xa0000000 fip_uboot.bin
=> sf erase 0x100000 +$filesize && sf write 0xa0000000 0x100000 $filesize

In addition, where did you modify based on the source code for LS1046ARDB?

[rashmikj]

Hi,

I modified ls1046ardb_tfa_defconfig as per our custom board and generated the fip.bin. this is log messages generated.

INFO: RCW BOOT SRC is QSPI
INFO: RCW BOOT SRC is QSPI
INFO: time base 5 ms
NOTICE: Fixed DDR on board
INFO: Time after parsing SPD 4 ms
INFO: Time before programming controller 8 ms
NOTICE: 4 GB DDR4, 64-bit, CL=15, ECC on
INFO: Time used by DDR driver 427 ms
NOTICE: BL2: v1.5(debug):LSDK-20.04-update-290520-dirty
NOTICE: BL2: Built : 09:24:41, Mar 22 2021
INFO: Configuring TrustZone Controller
INFO: Value of region base = ffe00000
INFO: Value of region base = 1ffe00000
INFO: Value of region base = fbe00000
INFO: Value of region base = 980000000
INFO: BL2: Doing platform setup
INFO: BL2: Loading image id 3
INFO: Loading image id=3 at address 0xfbe00000
INFO: Image id=3 loaded: 0xfbe00000 - 0xfbe0c644
INFO: BL2: Loading image id 5
INFO: Loading image id=5 at address 0x82000000
INFO: Image id=5 loaded: 0x82000000 - 0x820b694c
NOTICE: BL2: Booting BL31
INFO: Entry point address = 0xfbe00000
INFO: SPSR = 0x3cd
NOTICE: BL31: v1.5(debug):LSDK-20.04-update-290520-dirty
NOTICE: BL31: Built : 09:20:18, Mar 22 2021
NOTICE: Welcome to LS1046 BL31 Phase
INFO: ARM GICv2 driver initialized
INFO: BL31: Initializing runtime services
WARNING: BL31: cortex_a72: CPU workaround for 859971 was missing!
INFO: BL31: cortex_a72: CPU workaround for cve_2017_5715 was applied
INFO: BL31: cortex_a72: CPU workaround for cve_2018_3639 was applied
INFO: BL31: Preparing for EL3 exit to normal world
INFO: Entry point address = 0x82000000
INFO: SPSR = 0x3c9

It stops after this . What is the issue. Kindly help.

[yipingwang]

Please use CodeWarrior to attach to your target board to do read memory 0x82000000.

In CodeWarrior IDE, please create a bare board project from File->New->CodeWarrior Stationery, please build this project from Project->Build Project.

In "Target Connections" panel, please duplicate LS1046A_RDB and configure Target Connection Configuration(CodeWarrior TAP Connection).

Then click Debug->Debug Configurations->GDB Hardware Debugging-><project name>, please configure "Debugger" panel as the following.

Please configure Startup panel as the following

Then click "Debug" to connect to the target board, then click "suspend" in CodeWarrior IDE.

Then click Window->Show view->Memory, click "+“ to read memory 0x82000000, please check whether you could read similar content as the following.

[rashmikj]

Thanks for the reply

We found the problem. There is problem in spi. We have used MT25QU512 spi flash. it is 512Mb 64KB sector flash. Read/Write in some sector is ok. It is not able to erase read/write in some sector. Is there anyway we an check using code warrior complete SPI flash.

How can i change the device in code warrior flash programmer ??

[yipingwang · Accepted solution]

In Target Connections panel, please double click LS1046A-RDB(1), click "Target Initialization File", in CodeWarrior initialization file, please modify the following line 

# Add QSPI device
fl.add_device({"alias": "qspi", "name": "S25FS512S", "address": 0x40000000, "ws_address": 0x10000000, "ws_size": 0x1FFFF, "geometry": "8x1", "controller": "QSPI"})

Modify to:

fl.add_device({"alias": "qspi", "name": "MT25QU512ABA", "address": 0x40000000, "ws_address": 0x10000000, "ws_size": 0x1FFFF, "geometry": "8x1", "controller": "QSPI"})

Device MT25QU512ABA has been integrated in folder C:\Freescale\CW4NET_v2020.06\CW_ARMv8\Config\flash\devices.

[rashmikj]

Sir,

Flash is okay now. DDR is also passing the test with QCVS tool. We tried to import the settings and generated the fip.bin file.Still u boot not coming up.Which all files do we have to change the DDR settings?