xref: /openbmc/u-boot/board/ti/dra7xx/README (revision c66f5620)
1Summary
2=======
3
4This document covers various features of the 'dra7xx_evm' build and some
5related uses.
6
7eMMC boot partition use
8=======================
9
10It is possible, depending on SYSBOOT configuration to boot from the eMMC
11boot partitions using (name depending on documentation referenced)
12Alternative Boot operation mode or Boot Sequence Option 1/2.  In this
13example we load MLO and u-boot.img from the build into DDR and then use
14'mmc bootbus' to set the required rate (see TRM) and 'mmc partconfig' to
15set boot0 as the boot device.
16U-Boot # setenv autoload no
17U-Boot # usb start
18U-Boot # dhcp
19U-Boot # mmc dev 1 1
20U-Boot # tftp ${loadaddr} dra7xx/MLO
21U-Boot # mmc write ${loadaddr} 0 100
22U-Boot # tftp ${loadaddr} dra7xx/u-boot.img
23U-Boot # mmc write ${loadaddr} 300 400
24U-Boot # mmc bootbus 1 2 0 2
25U-Boot # mmc partconf 1 1 1 0
26U-Boot # mmc rst-function 1 1
27