[TDA4EVM]eMMC Boot

Hi, 

I had continued to try the steps that described in How_to_flash_emmc_device.html

Copy all images form MMCSD to EMMC. The result was still fail.

And then, If I also change the bootmode switches as

SW8 = 1 1 0 1 0 0 0 0 0

SW9 = 0 0 0 1 0 0 0 0

It's boot successul form eMMC.

But I don't know whitch one is the correct solution.

Please provide the right method to me,

Thanks!

Br, 

Ks,

Hi Ks,

do you use ti-processor-sdk-linux-automotive-j7-evm-06_01_00_05 version of the SDK? Can you check if the instructions in ti-processor-sdk-linux-automotive-j7-evm-06_01_00_05/docs/linux/Foundational_Components_U-Boot.html#sd-emmc-or-usb-storage can help you?

Note that if you use previous version of the SDK (6.00) the emmc boot is not supported.

regards,

Yordan

Hi, 

Yes, I use  ti-processor-sdk-linux-automotive-j7-evm-06_01_00_05 version of the SDK.

I had check the instruction in Foundational_Components_U-Boot.html#sd-emmc-or-usb-storage

3.1.1.6.1. Partitioning eMMC from U-Boot

=> printenv partitions
partitions=uuid_disk=${uuid_gpt_disk};name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
=> setenv uuid_gpt_disk 0c4bad4c-fb75-4973-82e9-0bbc1b5bed6e
=> setenv uuid_gpt_rootfs c242f386-a83d-4ffa-9648-e008132f06de
=> gpt write mmc 0 ${partitions}
Writing GPT: success!
=> mmc part

Partition Map for MMC device 0 -- Partition Type: EFI

Part Start LBA End LBA Name
Attributes
Type GUID
Partition GUID
1 0x00000022 0x01da3fde "rootfs"
attrs: 0x0000000000000000
type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
guid: c242f386-a83d-4ffa-9648-e008132f06de
=>

3.1.1.6.7. Booting tiboot3.bin, tispl.bin and u-boot.img from eMMC boot partition

Write images by RAW.

=> mmc dev 0 1
switch to partitions #1, OK
mmc0(part 1) is current device
=> fatload mmc 1 ${loadaddr} tiboot3.bin
232128 bytes read in 11 ms (20.1 MiB/s)
=> mmc write ${loadaddr} 0x0 0x400

MMC write: dev # 0, block # 0, count 1024 ... 1024 blocks written: OK
=> fatload mmc 1 ${loadaddr} tispl.bin
633816 bytes read in 30 ms (20.1 MiB/s)
=> mmc write ${loadaddr} 0x400 0x1000

MMC write: dev # 0, block # 1024, count 4096 ... 4096 blocks written: OK
=> fatload mmc 1 ${loadaddr} u-boot.img
1011108 bytes read in 46 ms (21 MiB/s)
=> mmc write ${loadaddr} 0x1400 0x2000

MMC write: dev # 0, block # 5120, count 8192 ... 8192 blocks written: OK
=> fatload mmc 1 ${loadaddr} sysfw.itb
267598 bytes read in 15 ms (17 MiB/s)
=> mmc write ${loadaddr} 0x3600 0x800

MMC write: dev # 0, block # 13824, count 2048 ... 2048 blocks written: OK
=> mmc partconf 0 1 1 1
=> mmc bootbus 0 2 0 0
=>

This is RAW mode!

Because I copied all form MMCSD to eMMC(FS mode), it can boot successfully.

So, I suppose I could have two methods FS Mode (OK) and RAW mode(Fail now).

I would like to use RAW mode,

How can I change to RAW mode?

Br,

Hi,

Can you confirm you executed all commands as mentioned in section 3.1.1.6.7?
Did you run the below commands as well?

=> mmc partconf 0 1 1 1
=> mmc bootbus 0 2 0 0


Could you try below DIP switch?

SW8 - 10000000
SW9 - 01000000


Regards,
Vishal

Hi,

Any update after previous comments?

Regards,
Vishal

sw8:  10000000

sw9:  00000000

success boot from emmc, but:

root@j7-evm:/opt/vision_apps# . ./vision_apps_init.sh 
root@j7-evm:/opt/vision_apps# APP_LOG: Mapping 0xac000000 ...
APP_LOG: Mapped 0xac000000 -> (nil) of size 262144 bytes 
APP_LOG: ERROR: Unable to map memory @ 0xac000000 of size 262144 bytes !!!

This is a different issue, please open a new thread for other questions.