u-boot-brain

History

Simon Glass 401d1c4f5d common: Drop asm/global_data.h from common header Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>		2021-02-02 15:33:42 -05:00
..
Kconfig	kconfig: remove redundant "string" type in arch and board Kconfigs	2014-09-13 16:43:55 -04:00
MAINTAINERS	Add board MAINTAINERS files	2014-07-30 08:48:06 -04:00
Makefile	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
README	omap5_uevm: Add CONFIG_SUPPORT_EMMC_BOOT, document usage	2014-02-07 18:17:49 +02:00
evm.c	common: Drop asm/global_data.h from common header	2021-02-02 15:33:42 -05:00
mux_data.h	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00

README

Summary
=======

This document covers various features of the 'omap5_uevm' 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} omap5uevm/MLO
U-Boot # mmc write ${loadaddr} 0 100
U-Boot # tftp ${loadaddr} omap5uevm/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