mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![]() We previously only supported QSPI_1 (single) support. Add QSPI_4 (quad) read support as well. This means we can be given one of two boot device values, but don't care which it is, so perform a fixup on the QSPI_4 value. We add a qspiboot build target to better show how you would use QSPI as a boot device in deployment. When we boot from QSPI, we can check the environment for 'boot_os' to control Falcon Mode. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Tom Rini <trini@ti.com> |
||
---|---|---|
.. | ||
evm.c | ||
Makefile | ||
mux_data.h | ||
README |
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