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SAMV7 Ethernet+USB Updates

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This commit is contained in:
Gregory Nutt 2015-03-27 10:47:03 -06:00
parent e1e7b63af4
commit 3e89b2f8ff
1 changed files with 20 additions and 6 deletions
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26
configs/samv71-xult/README.txt
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@ -83,15 +83,25 @@ The BASIC nsh configuration is fully function (as desribed below under
(of course with appropriate mounting and unmounting). I all not sure (of course with appropriate mounting and unmounting). I all not sure
of this and need to do more testing to characterize if the issue. of this and need to do more testing to characterize if the issue.
5. There is not yet any support for the following board features: QSPI, USB, 5. There is not yet any support for the following board features: QSPI or WM8904.
EMAC, AT24, or WM8904 nor for any non-board features). Most of these Many drivers will port easily from either the SAM3/4 or from the SAMA5Dx.
drivers will port easily from either the SAM3/4 or from the SAMA5Dx.
So there is still plenty to be done. So there is still plenty to be done.
6. There has been a quick'n'dirty port of the SAMA5D4-EK Ethernet logic 6. There has been a quick'n'dirty port of the SAMA5D4-EK Ethernet logic
for the SAMV71-XULT. There are still some cache-related issues to for the SAMV71-XULT. It does not work properly. Data on the line
be verified. No testing has yet been performed and so the driver should appears to be corrupted, probably at the level of the PHY.
be considered non-functional.
7. The USBHS device controller driver (DCD) is complete but non-functional.
At this point, work has stopped because I am stuck. The problem is that
bus events are not occurring: Nothing is detected by the USBHS when the
host is connected; no activity is seen on the bus by a USB analyzer when
the host is connected. Possibilities: (1) the pullups on DM and DP are
not working. This would prevent the host from detecting the presence of
the device. the DETACH bit is, however, being correctly cleared or (2)
some issue with clocking or configuration of the UTMI. I see nothing
wrong this this case. I have done extensive comparison of the Atmel
sample code and study of the data sheet, but I have not found the key to
solving this.
Serial Console Serial Console
============== ==============
@ -926,3 +936,7 @@ Configuration sub-directories
# CONFIG_ARMV7M_ITCM is not set : Support not yet in place # CONFIG_ARMV7M_ITCM is not set : Support not yet in place
# CONFIG_ARMV7M_DTCM is not set : Support not yet in place # CONFIG_ARMV7M_DTCM is not set : Support not yet in place
Stack sizes are also large to simplify the bring-up and should be
tuned for better memory usages.