mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Jan Luebbe <jlu@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH] ohci-hcd: use dma_flush/inv_range to allow using the driver with enabled MMU
Date: Mon, 14 May 2012 10:39:29 +0200	[thread overview]
Message-ID: <1336984769-10728-1-git-send-email-jlu@pengutronix.de> (raw)

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
---
 drivers/usb/host/ohci-hcd.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index f103101..05e4094 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -859,6 +859,8 @@ static void td_fill(struct ohci *ohci, unsigned int info,
 
 	td->hwNextTD = virt_to_phys((void *)m32_swap((unsigned long)td_pt));
 
+	dma_flush_range((unsigned long)data, (unsigned long)(data + len));
+
 	/* append to queue */
 	td->ed->hwTailP = td->hwNextTD;
 }
@@ -1555,6 +1557,8 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 	dev->status = stat;
 	dev->act_len = urb->actual_length;
 
+	dma_inv_range((unsigned long)buffer, (unsigned long)(buffer + transfer_len));
+
 	pkt_print(urb, dev, pipe, buffer, transfer_len,
 		  setup, "RET(ctlr)", usb_pipein(pipe));
 
-- 
1.7.9.5


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

                 reply	other threads:[~2012-05-14  8:39 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1336984769-10728-1-git-send-email-jlu@pengutronix.de \
    --to=jlu@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox