On 06-04-17 13:52, Jean-Francois Dagenais wrote:
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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On Mar 24, 2017, at 04:56, Mike Looijmans <[email protected]> wrote:
The remaining problem I still have is that pmufw kills the SD1 card controller.
I have the SD card slot connected to SD1 (MIO46 etc). On SD0 there's an 8G eMMC
chip.
When running an old 4.6 kernel which doesn't require pmufw, both SD0 and SD1
work fine.
Loading pmufw and running that old kernel makes SD1 fail, the kernel reports:
mmc1: error -110 whilst initialising MMC card
SD0 (the eMMC chip) keeps functioning okay apparently.
On the newer xilinx/master 4.9 kernel, the pmufw is required, and the SD1 fails
in the same way, preventing the system to boot from SD.
This is exactly what I am getting (just sent another message on the list about
it).
I know you later mentionned that disabling ZYNQMP_PM_DOMAINS made it work. In
my case, it doesn't.
I only tested that trick only on the 4.6 kernel.
I will spend the next bit of effort in the PMUFW code to try to disable PM even
more...
My guess is that there's a wrong bit value in the registers or so, some other
periferal accidentally turning off the clock to the SD1 controller for example.
I've given up on the 4.9 kernel for the time being, maybe I'll give it another
shot when that early (lack of) access stuff arrives.
M
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