[U-Boot-Users] [DNX#2006070742000028] [patch] add-support-for-high-boot-on-tqm5200-and-t [...]
DENX Support System
support at denx.de
Fri Jul 7 09:50:01 CEST 2006
Hello list,
inside the automatic U-Boot patch tracking system a new ticket
[DNX#2006070742000028] was created:
<snip>
> Add support for high boot on TQM5200 and TQM5200S boards.
>
> The high boot U-Boot could be used as a backup or rescue option if
> something goes wrong during an (low boot) U-Boot update. For this a
> secondary copy of U-Boot is stored at the end of the flash memory.
> Over jumper X30 on the STK52xx the desired boot option (low boot or
> high boot) could be selected.
>
> Hint: the CPLD on the TQM5200 must be programmed with a software
> version supporting the high boot option!
>
> U-Boot configurations for high boot:
>
> - TQM5200_HIGHBOOT_config
> - TQM5200_B_HIGHBOOT_config (for TQM5200S and TQM5200 with MPC5200B CPU)
>
> The "high boot" U-Boot should be programmed to the beginning of the last
> megabyte in flash memory (this addrss depends on the overall flash
> memory
> of the used TQM5200 variant).
>
> To actually "high boot", set jumper X30 on the STK52xx.
>
> Both U-Boot versions (low boot and high boot) are using the same
> environment stored in flash at address 0xFC080000.
>
> Signed-off-by: Martin Krause <martin.krause at tqs.de>
>
>
> CHANGELOG
>
> * Add support for high boot on TQM5200 and TQM5200S boards.
> Patch by Martin Krause, 7 Jul 2006
</snip>
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