target/linux/leon/patches/019-greth_fix_open_close.patch

   1 From 6216bc809c5bdd586b14d096fbaf6dc25574b928 Mon Sep 17 00:00:00 2001
   2 From: Daniel Hellstrom <daniel@gaisler.com>
   3 Date: Wed, 1 Dec 2010 09:59:14 +0100
   4 Subject: [PATCH] GRETH: fix opening/closing
   5
   6 When NAPI is disabled there is no point in having IRQs enabled, TX/RX
   7 should be off before clearing the TX/RX descriptor rings.
   8
   9 Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
  10 ---
  11  drivers/net/greth.c |    4 ++++
  12  1 files changed, 4 insertions(+), 0 deletions(-)
  13
  14 --- a/drivers/net/greth.c
  15 +++ b/drivers/net/greth.c
  16 @@ -365,6 +365,8 @@ static int greth_open(struct net_device
  17                 dev_dbg(&dev->dev, " starting queue\n");
  18         netif_start_queue(dev);
  19
  20 +       GRETH_REGSAVE(greth->regs->status, 0xFF);
  21 +
  22         napi_enable(&greth->napi);
  23
  24         greth_enable_irqs(greth);
  25 @@ -380,7 +382,9 @@ static int greth_close(struct net_device
  26
  27         napi_disable(&greth->napi);
  28
  29 +       greth_disable_irqs(greth);
  30         greth_disable_tx(greth);
  31 +       greth_disable_rx(greth);
  32
  33         netif_stop_queue(dev);
  34