On 24-03-17 02:07, Jean-Francois Dagenais wrote:
Alright, I have some early signs of success.
I dissected the problem I was having with my option 1. (today's masters on
u-boot-xlnx and linux-xlnx) I have my prompt on the rootfs stored on part 2 of
the SD card. Very basic sanity performed, need to go to bed now ;)
Here are the mods I had to do:
1. first remove the pmufw version 0.3 check (if you are lucky, it won't matter
too much??)
Or, since we're hacking pmufw anyway, just set PM_VERSION_MINOR to "3". That's
that I just did.
Should yield the same effect, since the fw version isn't being used anyway in
the kernel (and it's a really bad bad method to check on capabilities).
2. changed rev1.0_defconfig to remove a couple of things I don't use like
ethernet and qspi
I have my own board, so I also have a completely different set...
3. from xilinx SDK, I extracted the pmufw and modified PmGetMmioAccess to
always return true (permission granted).
Nice one!
(I don't remember the exact steps here, from the SDK, I had created a PMU FW build. In the
build directory, all the sources were copied over. On a shell where settings64.sh is sourced,
running "make" generates the "executable.elf" which can be converted to
pmufw.bin using the toolchain's objcopy tool. I modified PmGetMmioAccess right in this build folder
an ran make again. I think I will keep this pmufw.bin as a binary input for a while since it fits
my needs for now.)
4. package (u-boot's mkimage) the pmufw.bin in the SPL bin by specifying
CONFIG_PMUFW_INIT_FILE="board/xilinx/zynqmp/pmufw.bin"
5. messed around to make the u-boot default env "scripts" to fit the names of
the dtb and kernel Image I also bundle on the SD card part 1.
I think that's it. I'm tired. Just wanted to put the info out there before you
guys in Europe wake up in the morning.
We'll still have to work towards actually fixing meta-xilinx obviously. This
info will at least unlock many of us.
Keep them coming, I like your style.
Kind regards,
Mike Looijmans
System Expert
TOPIC Products
Materiaalweg 4, NL-5681 RJ Best
Postbus 440, NL-5680 AK Best
Telefoon: +31 (0) 499 33 69 79
E-mail: [email protected]
Website: www.topicproducts.com
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