u-boot

mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-05 20:54:31 +00:00

History

Keerthy 9ecdf30cfe board: ti: dra71x-evm: Hook LDO1 of LP8733 to EN_PIN All regulators are hooked to EN_Pin at reset so that EN Pin controls their state. Hook the LDO1 regulator to EN pin which at reset is not hooked. This applies only to LP8733. Signed-off-by: Keerthy <j-keerthy@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>		2017-11-17 07:43:32 -05:00
..
evm.c	board: ti: dra71x-evm: Hook LDO1 of LP8733 to EN_PIN	2017-11-17 07:43:32 -05:00
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: dra76-evm: Add the pinmux data	2017-09-11 16:19:42 -04:00
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