On Monday, May 13, 2019 12:51:05 PM CEST, Serge Semin wrote:
On Mon, May 13, 2019 at 01:29:42PM +0300, Serge Semin wrote:
Hello Vincente,
On Sat, May 11, 2019 at 05:06:04PM +0200, Vicente Bergas wrote: ...
Hmm, just figured out, that in the datasheet RXDLY/TXDLY pins
are actually grounded, so
phy-mode="rgmii" should work for you. Are you sure that on your
actual hardware the
resistors aren't placed differently?
That is correct, the schematic has pull-down resistors and placeholders for
pull-up resistors. On the board I can confirm the pull-ups are not
populated and the pull-downs are.
But the issue seems unrelated to this.
I have traced it down to a deadlock while trying to acquire a mutex.
It hangs here:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/phy/realtek.c?id=47782361aca2#n220
while waiting for this mutex:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/phy/mdio_bus.c?id=47782361aca2#n692
Regards,
Vicenç.
The current config register state can be read from the 0x1c
extension page. Something
like this:
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -221,6 +221,9 @@ static int rtl8211e_config_init(struct
phy_device *phydev)
if (ret)
goto err_restore_page;
+ ret = phy_read(phydev, 0x1c);
+ dev_info(&phydev->mdio.dev, "PHY config register %08x\n", ret);
+
ret = phy_modify(phydev, 0x1c, RTL8211E_TX_DELAY | RTL8211E_RX_DELAY,
val);
-Sergey
