TDA4VM: how to UFS boot

Adjust the boot mode to opsi + ufs

Hi,

To Begin with, Do you have OSPI boot verified. That should be easy to get working. 

Are you trying things out on Custom Board or EVM?

What is the boot flow you will be using? SPL or SBL?

We do not have SDK 10.6. We only have SDK 10.0 and 10.1. The next is going to be SDK 11.0.

Regards,
Tanmay

hello Tanmay Patil

We haven't verified the OSPI boot yet; we are currently using SD card boot.

We are developing on a custom board.

We want to use SBL boot.

I apologize for the version number mistake; it should be SDK 10.0.

Does it support the boot mode of OSPI + UFS?

BR，

liupt

hi Tanmay Patil 

1. Format UFS to ext4 and create a rootfs partition.
2. Copy the rootfs from the SD card to the UFS rootfs partition.
3. Enable configuration: CONFIG_SCSI_UFS_TI_J721E=y.
4. In the U-Boot interface, input:
   setenv bootargs console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02880000 root=/dev/sdb1 rootwait setenv bootcmd "ufs init; scsi scan; ext4load scsi 1 0x82000000 boot/Image; ext4load scsi 1 0x81200000 boot/dtb/ti/k3-j784s4-evm.dtb; booti 0x82000000 - 0x81200000" boot

After doing this, do I need to change the boot mode? Because there is no UFS mode not in the boot mode settings.

If I want to use the OSPI + UFS boot method:

• UFS needs to go through steps 1, 2, 3.
• Then store the (r5-sbl, atf, optee*, a72-spl*, u-boot*, and kernel) (* marked items are optional in the SBL) in OSPI.
• Then, I need to modify the psdkla/board-support/ti-linux-kernel-6.6.32+git-ti/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts file to change:dts
  chosen { stdout-path = "serial2:115200n8"; bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000 root=/dev/sdb1 rw rootfstype=ext4 rootwait"; };

Is that all I need to do?

Now there is another issue: In SDK 10.1, psdkra/mcusw/mcuss_demos/boot_app_mcu_rtos seems to be deprecated. Currently, we are using ipc_rtos_echo_test.

To support the OSPI + UFS boot method, should I port boot.c from psdkra/mcusw/mcuss_demos/boot_app_mcu_rtos to boot_app_mcu_rtos?

BR，

liupt

Hi,

I want to get further clarity on the boot flow you will be using. Can you just list what stages of boot binary will be in which memory?

Regards,
Tanmay

hello 

In our previous project, we used OSPI + eMMC for booting.

The boot files in the diagram are located in the NOR flash.

BR

liupt

hi 

"In SDK10, the MCU software being used is ipc_rtos_echo_test. Is there a patch available to add all boot-related functionalities into this program?"