Hello Sebastian,
your changes work for us as well, now we are able to run a clean version
of the altcycv_devkit bsp on our DE10 board.
Extending the BSP documentation helps a lot, but maybe you can add the
definition of the u-boot 'loadfdt' variable, does not seem to be defined
in any socfpga configuration (e.g. socfpga_cyclone5_socdk) in the
upstream u-boot repo, but some other board configurations:
http://git.denx.de/?p=u-boot.git;a=blob;f=include/configs/socfpga_cyclone5_socdk.h
http://git.denx.de/?p=u-boot.git;a=blob;f=include/configs/socfpga_common.h
Kind regards,
Christian
On 18.02.19 09:17, Sebastian Huber wrote:
Hello Christian,
I added some basic BSP documentation:
https://docs.rtems.org/branches/master/user/bsps/bsps-arm.html#altera-cyclone-v
On 14/02/2019 13:54, Christian Spindeldreier wrote:
we had to change the BSP_ARM_A9MPCORE_PERIPHCLK frequency to 100 MHz
as this is the frequency the L4 MP clock is set by Qsys or the SPL,
respectively. This meant adding a second board to the
altera-cyclone-v bsp differing only by this configuration option.
Adapting the configuration as described enabled the upstream RTEMS-5
version to boot on the Terasic-DE10 Standard Board
(http://de10-standard.terasic.com).
I changed the BSP initialization to use the device tree for this clock:
https://git.rtems.org/rtems/commit/?id=af80b0a3406bef73dc6550421947a981c939da27
It would be nice if you could test this. Please remove the
"BSP_ARM_A9MPCORE_PERIPHCLK=100000000" from the configure command line.
U-Boot itself contains a device-tree of the board it is running on,
but i missed the u-boot command handing over the u-boot device-tree
to rtems which expects the device-tree address in R6 on startup. If
there is anything like this i am pleased on any information on it.
The device tree provided by U-Boot is in r2.
--
Dipl.-Ing. Christian Spindeldreier
Leibniz University Hannover (LUH)
Institute of Microelectronic Systems
Architectures and Systems Group
Appelstr. 4, 30167 Hannover, Germany
voice : +49-511-762-5039
fax : +49-511-762-19601
mail : spindeldre...@ims.uni-hannover.de
web : http://www.ims.uni-hannover.de/spindeldreier
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