mirror of
https://github.com/brain-hackers/u-boot-brain
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0358923409
Silicon revision 2.0 has new signal routing hence has an updated set of iodelay parameters to be used. Update the configuration for the same. Padmux remains the same. Based on data from VayuES2_EVM_Base_Config-20150807. NOTE: With respect to the RGMII values, the Manual IODelay values are used for the fine adjusments needed to meet the tight RGMII specification. Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> |
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| evm.c | ||
| Kconfig | ||
| MAINTAINERS | ||
| 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