diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/735-v5.14-17-net-dsa-qca8k-clear-MASTER_EN-after-phy-read-write.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/735-v5.14-17-net-dsa-qca8k-clear-MASTER_EN-after-phy-read-write.patch | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/target/linux/generic/backport-5.15/735-v5.14-17-net-dsa-qca8k-clear-MASTER_EN-after-phy-read-write.patch b/target/linux/generic/backport-5.15/735-v5.14-17-net-dsa-qca8k-clear-MASTER_EN-after-phy-read-write.patch deleted file mode 100644 index 4593da032b..0000000000 --- a/target/linux/generic/backport-5.15/735-v5.14-17-net-dsa-qca8k-clear-MASTER_EN-after-phy-read-write.patch +++ /dev/null @@ -1,50 +0,0 @@ -From 63c33bbfeb6842a956a0eb12901e28eb335bdb18 Mon Sep 17 00:00:00 2001 -From: Ansuel Smith <ansuelsmth@gmail.com> -Date: Fri, 14 May 2021 23:00:07 +0200 -Subject: [PATCH] net: dsa: qca8k: clear MASTER_EN after phy read/write - -Clear MDIO_MASTER_EN bit from MDIO_MASTER_CTRL after read/write -operation. The MDIO_MASTER_EN bit is not reset after read/write -operation and the next operation can be wrongly interpreted by the -switch as a mdio operation. This cause a production of wrong/garbage -data from the switch and underfined bheavior. (random port drop, -unplugged port flagged with link up, wrong port speed) -Also on driver remove the MASTER_CTRL can be left set and cause the -malfunction of any next driver using the mdio device. - -Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/dsa/qca8k.c | 14 ++++++++++++-- - 1 file changed, 12 insertions(+), 2 deletions(-) - ---- a/drivers/net/dsa/qca8k.c -+++ b/drivers/net/dsa/qca8k.c -@@ -649,8 +649,14 @@ qca8k_mdio_write(struct qca8k_priv *priv - if (ret) - return ret; - -- return qca8k_busy_wait(priv, QCA8K_MDIO_MASTER_CTRL, -- QCA8K_MDIO_MASTER_BUSY); -+ ret = qca8k_busy_wait(priv, QCA8K_MDIO_MASTER_CTRL, -+ QCA8K_MDIO_MASTER_BUSY); -+ -+ /* even if the busy_wait timeouts try to clear the MASTER_EN */ -+ qca8k_reg_clear(priv, QCA8K_MDIO_MASTER_CTRL, -+ QCA8K_MDIO_MASTER_EN); -+ -+ return ret; - } - - static int -@@ -685,6 +691,10 @@ qca8k_mdio_read(struct qca8k_priv *priv, - - val &= QCA8K_MDIO_MASTER_DATA_MASK; - -+ /* even if the busy_wait timeouts try to clear the MASTER_EN */ -+ qca8k_reg_clear(priv, QCA8K_MDIO_MASTER_CTRL, -+ QCA8K_MDIO_MASTER_EN); -+ - return val; - } - |