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authorOleksij Rempel <linux@rempel-privat.de>2017-09-18 18:41:45 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2017-09-20 08:30:16 +0200
commit22e1ba9f3645057586abc866ed0925bd28d5b8d2 (patch)
tree8d471fb32cc6972b7de7c08ca05c01343c4f1a50
parentf5098c4064372b9e7b4647e9e68ec274a43baccb (diff)
downloadbarebox-22e1ba9f3645057586abc866ed0925bd28d5b8d2.tar.gz
net: ag71xx: disable eth interface on barebox shutdown
If not disable, DMA RX engine will keep to write in to allocated memory area. As soon as some code or data of target OS will be placed to this area it will be overwritten by incoming network package. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--drivers/net/ag71xx.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ag71xx.c b/drivers/net/ag71xx.c
index 54f0bd9..1cec263 100644
--- a/drivers/net/ag71xx.c
+++ b/drivers/net/ag71xx.c
@@ -578,6 +578,7 @@ static int ag71xx_probe(struct device_d *dev)
priv = xzalloc(sizeof(struct ag71xx));
edev = &priv->netdev;
miibus = &priv->miibus;
+ dev->priv = edev;
edev->priv = priv;
edev->init = ag71xx_ether_init;
@@ -659,6 +660,13 @@ static int ag71xx_probe(struct device_d *dev)
return 0;
}
+static void ag71xx_remove(struct device_d *dev)
+{
+ struct eth_device *edev = dev->priv;
+
+ ag71xx_ether_halt(edev);
+}
+
static __maybe_unused struct of_device_id ag71xx_dt_ids[] = {
{ .compatible = "qca,ar9331-ge0", .data = &ag71xx_cfg_ar9331_ge0, },
{ .compatible = "qca,ar9344-gmac0", .data = &ag71xx_cfg_ar9344_gmac0, },
@@ -668,6 +676,7 @@ static __maybe_unused struct of_device_id ag71xx_dt_ids[] = {
static struct driver_d ag71xx_driver = {
.name = "ag71xx-gmac",
.probe = ag71xx_probe,
+ .remove = ag71xx_remove,
.of_compatible = DRV_OF_COMPAT(ag71xx_dt_ids),
};
device_platform_driver(ag71xx_driver);