DRA829V: How to start the UBOOT from OSPI ?

Cluck

Part Number: DRA829V
Other Parts Discussed in Thread: UNIFLASH

Hi Experts:

In the mcuss demo of SDK07_03_00_07 package, it is mentioned that Linux kernel can be started through OSPI. However, due to the difference between EMMC hardware of our development board and demo board, we can't start Linux kernel directly. Therefore, we need to start uboot through OSPI first. The document of SDK package does not introduce how to start uboot through OSPI. Is there any way to write the image of uboot into flash directly? How to load the uboot image through uboot SPL and then start the Linux kernel?

over 4 years ago

0 Karan Saxena over 4 years ago

TI__Guru* 77985 points

Hi Cluck,

You can use the UNIFLASH too from TI to flash to OSPI. Please download the latest version of the tool from https://www.ti.com/tool/download/UNIFLASH#downloads (there are Linux and Windows versions of the tool).

After downloading the tool you can use the below steps o flash to OSPI:

1. Change bootmode on the board to UART boot mode. On the EVM this is https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/07_03_00_07/exports/docs/psdk_rtos/docs/user_guide/evm_setup_j721e.html#uart-boot-mode

Make sure that MCU UART instance is not open in any serial console viewer like minicom.

2. Use the commands from below script to flash the pre-built images in the OSPI flash:

ospi_linux.zip

3. Change bootmode to OSPI boot mode and power on the board. On the EVM OSPI boot mode is https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/07_03_00_07/exports/docs/psdk_rtos/docs/user_guide/evm_setup_j721e.html#ospi-boot-mode

Regards,

Karan