X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fboard%2Fti%2Fdra7xx%2FREADME;fp=qemu%2Froms%2Fu-boot%2Fboard%2Fti%2Fdra7xx%2FREADME;h=533da01a347e6391ee3eaf3e6eb396e86354a280;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/u-boot/board/ti/dra7xx/README b/qemu/roms/u-boot/board/ti/dra7xx/README new file mode 100644 index 000000000..533da01a3 --- /dev/null +++ b/qemu/roms/u-boot/board/ti/dra7xx/README @@ -0,0 +1,26 @@ +Summary +======= + +This document covers various features of the 'dra7xx_evm' build and some +related uses. + +eMMC boot partition use +======================= + +It is possible, depending on SYSBOOT configuration to boot from the eMMC +boot partitions using (name depending on documentation referenced) +Alternative Boot operation mode or Boot Sequence Option 1/2. In this +example we load MLO and u-boot.img from the build into DDR and then use +'mmc bootbus' to set the required rate (see TRM) and 'mmc partconfig' to +set boot0 as the boot device. +U-Boot # setenv autoload no +U-Boot # usb start +U-Boot # dhcp +U-Boot # mmc dev 1 1 +U-Boot # tftp ${loadaddr} dra7xx/MLO +U-Boot # mmc write ${loadaddr} 0 100 +U-Boot # tftp ${loadaddr} dra7xx/u-boot.img +U-Boot # mmc write ${loadaddr} 300 400 +U-Boot # mmc bootbus 1 2 0 2 +U-Boot # mmc partconf 1 1 1 0 +U-Boot # mmc rst-function 1 1