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b818d9ab TR |
1 | Summary |
2 | ======= | |
3 | ||
4 | This document covers various features of the 'dra7xx_evm' build and some | |
5 | related uses. | |
6 | ||
7 | eMMC boot partition use | |
8 | ======================= | |
9 | ||
10 | It is possible, depending on SYSBOOT configuration to boot from the eMMC | |
11 | boot partitions using (name depending on documentation referenced) | |
12 | Alternative Boot operation mode or Boot Sequence Option 1/2. In this | |
13 | example 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 | |
15 | set boot0 as the boot device. | |
16 | U-Boot # setenv autoload no | |
17 | U-Boot # usb start | |
18 | U-Boot # dhcp | |
19 | U-Boot # mmc dev 1 1 | |
20 | U-Boot # tftp ${loadaddr} dra7xx/MLO | |
21 | U-Boot # mmc write ${loadaddr} 0 100 | |
22 | U-Boot # tftp ${loadaddr} dra7xx/u-boot.img | |
23 | U-Boot # mmc write ${loadaddr} 300 400 | |
24 | U-Boot # mmc bootbus 1 2 0 2 | |
25 | U-Boot # mmc partconf 1 1 1 0 | |
33ace362 | 26 | U-Boot # mmc rst-function 1 1 |