SPRAD09A December 2021 – July 2022 DRA821U , DRA821U-Q1
This step is to copy the SD card uboot files onto the xSPI.
So, there are 2 boot switch settings in this step2.
The SD card is used to boot first, then the xSPI switch is used.
1st time Boot Switch setting:
#EVM to set SD Boot Mode, refer /psdk_rtos_auto/docs/user_guide/J7_EVM_SETUP.html
SW8[1-8] = 1000 0010
SW9[1-8] = 0000 0000 <--Rio: Read EVM user guide
SW3[1-10] = 0110001001
Commands:
When in uboot prompt, do these. (Do this on the EVM!)
sf probe
fatload mmc 1 ${loadaddr} tiboot3.bin; sf update $loadaddr 0x0 $filesize;
fatload mmc 1 ${loadaddr} tispl.bin; sf update $loadaddr 0x100000 $filesize;
fatload mmc 1 ${loadaddr} u-boot.img; sf update $loadaddr 0x300000 $filesize;
After doing those actions above, do this:
2nd time Boot switch setting:
#EVM to set xSPI Boot Mode
SW8[1-8]: 1000 0010
SW9[1-8]: 0011 0000
SW3[1-10]: 0111 0010 10
After this point, do not change the SW8/SW9/SW3.
Now, hereafter, you only can use this setting, no need to change again.