On 26/05/16 16:06, Mudit Jain wrote:
Hi Sebastian & Andre,
In the last IRC meeting, Gedare had mentioned that you have previously
worked on the SD card driver.
I was working on the SD Card driver for Rpi.
I was going through the driver code that has been ported. I was able
to browse and get a top level overview regarding the ported driver
using the documentation for the APIs used from FreeBSD.
The driver is working for the powerpc/qoriq BSP.
The SDHC modules for the early QorIQ had many silicon bugs. It never
really worked well or the variant we used.
I wanted to know which SDHC is present on that BSP and to which
specification was the driver tailored to?
RPi has a SD host controller that is complaint to Specification 3.0.
Thus I was following this link :
https://www.sdcard.org/downloads/pls/pdf/partA2_300.pdf.
Andre, were the previous commits regarding the reset logic done based
on this specification ? I wanted to clarify that that function logics
that are to be implemented will be based on this specification ?
Thanks
Mudit
FreeBSD claims to have full support for the RPi 2:
https://wiki.freebsd.org/FreeBSD/arm/Raspberry%20Pi
So, I would use the latest code from FreeBSD and import it into libbsd.
https://svnweb.freebsd.org/base/head/sys/arm/broadcom/bcm2835/bcm2835_sdhci.c?revision=297127&view=markup
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
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Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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