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u-boot-brain/board/ti/dra7xx
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Tom Rini b818d9ab8d dra7xx_evm: Add CONFIG_SUPPORT_EMMC_BOOT, document usage 
Add a README to the board which lists the commands required to enable
booting from the eMMC boot partitions found on the board.

Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-02-07 18:17:49 +02:00
..
evm.c ARM: dra7_evm: read mac address properly from e-fuse 2014-01-07 16:41:12 -05:00
Makefile board: ti: convert makefiles to Kbuild style 2013-10-31 13:26:44 -04:00
mux_data.h usb: dra7xx: Add support for dra7xx xhci USB host 2013-10-20 23:42:41 +02:00
README dra7xx_evm: Add CONFIG_SUPPORT_EMMC_BOOT, document usage 2014-02-07 18:17:49 +02:00

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