Connected GMAC port and TFTP server via network cable. (TFTP download Fail)

[tzeng015]

Hi NXP TechSupport

My Board : S32g274ardb2
According this file "AN13185 Flashing Binaries to S32G-VNP-RDB2 Board.pdf" and I follow page 9 of the guide to do this
Step4. Connected GMAC port and TFTP server via network cable.
Step5. Power on the board and stops the program at the u-boot command line. Configure the TFTP client environment.
a) To load Image using TFTP it required to setup TFTP server and to do the TFTP client settings in u-boot to be initialized.
The instructions to setup a TFTP server are outside the scope of this document.
b) Change the environment variable ethact to eth_eqos. => setenv ethact eth_eqos
c) Set Ip address of ipaddr and serverip
=> setenv ipaddr 10.193.248.207
=> setenv serverip 10.193.248.72
=> ping 10.193.248.72
Using eth_eqos device host 10.193.248.72 is alive

Setp6. Loading image from TFTP server to DDR.
=>tftp 80080000 fsl-image-auto-s32g274ardb2.sdcard
#################################################################
############## 3.9 MiB/s done Bytes transferred = 490733568 (1d400000 hex)

Question :
TFTP download OK state:
(1) SD_Card Boot (This attach SD card is attach with Board when I buy it)
(2) Follow Step 4/5/6 .It is download OK
(3) Check U-boot version (Mar 03 2021)

TFTP download Fail state:
(1) Switch EMMC Boot
(2) Follow 4/5/6 . It is download Fail and the error message is
TFTP error : try to overwrite reserved memory
(3) Check U-boot version (Aug 19 2021)

Summary:
Can you help me what's wrong with this kind of sitution? What can I do and how do you do?

Jeffrey

[ZhiguoZhong]

I have the same problem at BSP33.0 ......

"TFTP error: trying to overwrite reserved memory..."

[tzeng015]

Hi NXP support 

Please see the attach file and I modified it . I can work well and I reference fsl-s32-gen1.dtsi of BSP28 . Can you help me to check any side effect ?

thank you

[tzeng015]

Hi NXP support 

Have you try to  flash "u-boot-s32g274ardb2.s32" to EMMC and tftp download "fsl-image-auto-s32g274ardb2.sdcard" of BSP31/BSp30 . Does it can flasn image OK ? Does it have the message "tftp error trying to overwrite reserved memory" ? Can you try it ?

thank you

[bpe]

The full BSP bootable SD card image is relatively large. You may be hitting reserved areas of the address space when downloading. If you want to prepare a bootable SD card for your RDB2, u-Boot is not a very good choice. Use either Linux or S32DS. For more details on how u-Boot sees and uses RAM, see this file, section titled “Memory Management” and the processor memory map spreadsheet.

Best Regards
Platon

[tzeng015]

Hi 

I download the BSP28 (S32G2_LinuxBSP28.0.0) and use the flash_tool to download u-boot.(u-boot-s32g274ardb2.s32). I also download "fsl-image-auto-s32g274ardb2.sdcard" from TFTP via u-boot.

The u-boot version is "Mar 03 2021"

These process is OK at BSP28(the attach picture) but BSP30 can't work well. Can you help me?

thank you

 

[bpe]

It has already been explained in the preceding posts why large files may fail
to download via TFTP in u-Boot. You may be lucky with one u-Boot version and
not with the other due to different default settings and amounts of memory allocated
by u-Boot for it's own needs. Study the documentation mentioned above for better
understanding.

Best Regards,
Platon

[tzeng015]

Hi Platon

I am sorry to bother again . Can you seee my attach file again ?

Summary:
My Purpose is “ flash u-boot and kernel image to EMMC and boot OK”
Does the page 4-10 the right process and relate files?
ps : files
U-boot(u-boot-s32g274ardb2.s32)
Fsl-image-auto-s32g274ardb2.sdcard
(3) u-boot (u-boot-s32g274ardb2.s32) via flash tool download
(4) Linux image (Fsl-image-auto-s32g274ardb2.sdcard) via tftp download
(5) According your answer “u-Boot is not a very good choice” , I can’t understand the reason .
(6) If page 4-10 is OK of BSP28, I can’t understand BSP30 doesn’t flash OK.
(7) According your answer of P1 , I want to flash u-boot to EMMC via flash-tool not SD Card and boot u-boot OK

My question is (5) / (6 ) / (7)

[tzeng015]

Hi NXP support 

Have you try to  flash "u-boot-s32g274ardb2.s32" to EMMC and tftp download "fsl-image-auto-s32g274ardb2.sdcard" of BSP31/BSp30 . Does it can flasn image OK ? Does it have the message "tftp error trying to overwrite reserved memory" ? Can you try it ?

thank you

[tzeng015]

Hi NXP support 

Please see the attach file and I just modified the source code of tftp.c . And it work well. Can you help me to check this one ?