u-boot.bin in MMC card

alberto liberal

Other Parts Discussed in Thread: AM1808, OMAPL138

Hi,

one doubt, why is it needed to download u-boot.bin in the first partition of the MMC card. together with the uImage kernel. If i understand it well we are flashing the u-boot bin to the SPI flash, and then we are booting from SPI flash and after loading the kernel uImage rom the MMC. Would it not be enough to load only the kernel uImage in the first MMC partition without the u-boot.bin?

Thanks

over 14 years ago

0 Schuyler Patton over 14 years ago

TI__Mastermind 40080 points

Are you using an evm platform?

Since you mentioned SPI I'll assume AM1808, which could be wrong. If you have uboot in SPI then is no need to put it in MMC. If you want to put u-boot on the MMC card you will not be putting it in the first partition but at a specifc location using a utility that TI provides.

Here are a couple of links for the uflash utility and how to use it to put u-boot on an SD card for the AM1808/OMAPL138

Describes where to find the utility

http://processors.wiki.ti.com/index.php/GSG:_DA8x/OMAP-L1/AM1x_DVEVM_Additional_Procedures#SD_Card_Writer_Utility_.28uflash.29

How to use the utility

http://processors.wiki.ti.com/index.php/GSG:_OMAP-L138_DVEVM_Additional_Procedures#Creating_bootable_SD_card_for_OMAP-L138_EVM_board

0 alberto liberal over 14 years ago in reply to Schuyler Patton

Intellectual 625 points

Thanks for your fast reply!!

I am using AM1808 experimenter board. Can i load u-boot from MMC using AM1808 Rom bootloader (RBL)?. Should i load 2nd level bootloader (UBL) in MMC?.

Thanks

Wi-Fi

Wi-Fi forum

u-boot.bin in MMC card