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https://github.com/brain-hackers/u-boot-brain
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6b1c14bb67
DDR configuration has changes from SR1.1 based Rev-A/B version of evm to the SR2.0 based Rev C of the EVM. Rev C evm now uses the higher density MT41K512M8RH-125-AAT:E (IT) which is of size 2GB. Update the DDR configuration based on data from EMIF configuration tool 1.1.1. NOTE: we use eeprom information (ram_size) to update the configuration. Tested-by: Vishal Mahaveer <vishalm@ti.com> Signed-off-by: Ravi Babu <ravibabu@ti.com> 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