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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 459bf9e885
commit 66670c1738
3 changed files with 34 additions and 12 deletions
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5
arch/arm/src/samv7/sam_emac.c
View File

@ -1041,7 +1041,7 @@ static int sam_buffer_allocate(struct sam_emac_s *priv)
priv->xfrq[0].txdesc = priv->attr->tx0desc;
priv->xfrq[0].ntxbuffers = priv->attr->ntxbuffers;
priv->xfrq[0].rxdesc = priv->attr->rx0desc;
priv->xfrq[0].nrxbuffers = priv->attr->rtxbuffers;
priv->xfrq[0].nrxbuffers = priv->attr->nrxbuffers;
priv->xfrq[0].txbuffer = priv->attr->tx0buffer;
priv->xfrq[0].txbufsize = EMAC_TX_UNITSIZE;
@ -1602,7 +1602,7 @@ static int sam_recvframe(struct sam_emac_s *priv, int qid)
{
if (rxndx == priv->xfrq[qid].rxndx)
{
nllvdbg("ERROR: No EOF (Invalid of buffers too small)\n");
nllvdbg("ERROR: No EOF (Invalid or buffers too small)\n");
do
{
/* Give ownership back to the EMAC */
@ -1624,6 +1624,7 @@ static int sam_recvframe(struct sam_emac_s *priv, int qid)
}
}
while (rxndx != priv->xfrq[qid].rxndx);
return -EIO;
}

15
arch/arm/src/samv7/sam_usbdevhs.c
View File

@ -4209,7 +4209,7 @@ static int sam_pullup(FAR struct usbdev_s *dev, bool enable)
{
/* DETACH=1: USBHS is detached, UTMI transceiver is suspended. */
regval = sam_getreg(SAM_USBHS_DEVCTRL);
regval = sam_getreg(SAM_USBHS_DEVCTRL);
regval |= USBHS_DEVCTRL_DETACH;
sam_putreg(regval, SAM_USBHS_DEVCTRL);
@ -4533,13 +4533,20 @@ static void sam_hw_shutdown(struct sam_usbdev_s *priv)
sam_putreg(USBHS_DEVINT_ALL, SAM_USBHS_DEVICR);
/* Disconnect the device */
/* DETACH=1: USBHS is detached, UTMI transceiver is suspended. */
sam_pullup(&priv->usbdev, false);
regval = sam_getreg(SAM_USBHS_DEVCTRL);
regval |= USBHS_DEVCTRL_DETACH;
sam_putreg(regval, SAM_USBHS_DEVCTRL);
/* Freeze clocking */
regval = sam_getreg(SAM_USBHS_CTRL);
regval |= USBHS_CTRL_FRZCLK;
sam_putreg(regval, SAM_USBHS_CTRL);
/* Disable USB hardware */
regval = sam_getreg(SAM_USBHS_CTRL);
regval &= ~USBHS_CTRL_USBE;
sam_putreg(regval, SAM_USBHS_CTRL);

26
configs/samv71-xult/README.txt
View File

@ -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 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,
EMAC, AT24, or WM8904 nor for any non-board features). Most of these
drivers will port easily from either the SAM3/4 or from the SAMA5Dx.
5. There is not yet any support for the following board features: QSPI or WM8904.
Many drivers will port easily from either the SAM3/4 or from the SAMA5Dx.
So there is still plenty to be done.
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
be verified. No testing has yet been performed and so the driver should
be considered non-functional.
for the SAMV71-XULT. It does not work properly. Data on the line
appears to be corrupted, probably at the level of the PHY.
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
==============
@ -926,3 +936,7 @@ Configuration sub-directories
# CONFIG_ARMV7M_ITCM 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.