This patch adds runtime detection of the Marvell UART boot-mode (xmodem
protocol). If this boot-mode is detected, SPL will return to the
BootROM to continue the UART booting.
With this patch its now possible, to generate a U-Boot image that
can be booted either from the strapped boot-device (e.g. SPI NOR, MMC,
etc) or via the xmodem protocol from the UART. In the UART case,
the kwboot tool will dynamically insert the UART boot-device type
into the image. And also patch the load address in the header, so
that the mkimage header will be skipped (as its not expected by the
Marvell BootROM).
This simplifies the development for Armada XP / 38x based boards.
As no special images need to be generated by selecting the
MVEBU_BOOTROM_UARTBOOT Kconfig option.
Since the Kconfig option MVEBU_BOOTROM_UARTBOOT is not needed any
more, its now completely removed.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Currently, kwboot only allows dynamic UART boot mode patching for SoCs
with header version 0 (Orion, Kirkwood). This patch now enables this "-p"
feature also for SoCs with header version 1 (Armada XP / 38x etc). With
this its possible now to use the UART boot mode without on images that
are generated for other boot devices, like SPI. So no need to change
BOOT_FROM to "uart" for UART xmodem booting any more.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>
To support the Armada 38x, new values for the request-delay and the
response-timeout are needed. As the values already implemented in
this tool (for Kirkwood and Armada XP) don't seem to work here.
To make this more flexible, lets add make those 2 parameters
configurable via the cmdline. Here the new parameters:
-q <req-delay>: use specific request-delay
-s <resp-timeo>: use specific response-timeout
For the Marvell DB-88F6820 these values are known to work:
One board:
-q 2 -s 1
2nd board:
-q 5 -s 5
So this seems to be even board specific. But with this patch now
those values can be specified and tested via the cmdline.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Luka Perkov <luka.perkov@sartura.hr>
The barebox version of the kwboot tool has evolved a bit. To support
Armada XP and Dove. Additionally a few minor fixes have been applied.
So lets sync with the latest barebox version.
Please note that the main difference between both versions now is, that
the U-Boot version still supports the -p option, to dynamically patch
an image for UART boot mode. I didn't test it now though.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>
The kwboot program boots boards based on Marvell's Kirkwood platform
via Xmodem over their integrated UART.
Signed-off-by: Daniel Stodden <daniel.stodden@googlemail.com>
Acked-by: Luka Perkov <uboot@lukaperkov.net>
Tested-By: Holger Brunck <holger.brunck@keymile.com>
Tested-By: David Purdy <david.c.purdy@gmail.com>
Tested-by: Simon Guinot <simon.guinot@sequanux.org>
