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u-boot/board/ti/dra7xx
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Semen Protsenko 4a30a93929 arm: dra7: Set fastboot variables in environment 
One can obtain those variables using next commands:

    $ fastboot getvar cpu
    $ fastboot getvar secure
    $ fastboot getvar board_rev
    $ fastboot getvar userdata_size

Those variables are needed for fastboot.sh script.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-06-12 08:36:26 -04:00
..
evm.c arm: dra7: Set fastboot variables in environment 2017-06-12 08:36:26 -04:00
Kconfig ARM: DRA7: Enable EEPROM support 2016-03-14 19:18:50 -04:00
MAINTAINERS ARM: DRA7xx: Enable FIT for hs platforms 2016-06-06 13:39:17 -04:00
Makefile board: ti: convert makefiles to Kbuild style 2013-10-31 13:26:44 -04:00
mux_data.h board: ti: dra72: Introduce optimization for rgmii timing for rev C 2016-12-04 13:54:50 -05:00
README mmc: Add 'mmc rst-function' sub-command 2014-04-02 13:02:58 +03:00

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