mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 10:39:04 +00:00
4c1d13e995
Removed because it is upstream:
generic/pending-5.15/540-ksmbd-only-v2-leases-handle-the-directory.patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=81ea755b8fa57ce186f56f14b709cf491c2a5505
Manually Adapted the following patches:
ath79/patches-5.15/900-unaligned_access_hacks.patch
ipq806x/patches-5.15/113-v5.19-03-PM-devfreq-Rework-freq_table-to-be-local-to-devfr.patch
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 26d1d52403)
52 lines
1.8 KiB
Diff
52 lines
1.8 KiB
Diff
From 9af6d93967ff5a2d90a6f82c20f4d6b2785535e7 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Fri, 9 Aug 2019 08:51:43 +0100
|
|
Subject: [PATCH] net: bcmgenet: Workaround #2 for Pi4 Ethernet fail
|
|
|
|
Some combinations of Pi 4Bs and Ethernet switches don't reliably get a
|
|
DCHP-assigned IP address, leaving the unit with a self=assigned 169.254
|
|
address. In the failure case, the Pi is left able to receive packets
|
|
but not send them, suggesting that the MAC<->PHY link is getting into
|
|
a bad state.
|
|
|
|
It has been found empirically that skipping a reset step by the genet
|
|
driver prevents the failures. No downsides have been discovered yet,
|
|
and unlike the forced renegotiation it doesn't increase the time to
|
|
get an IP address, so the workaround is enabled by default; add
|
|
|
|
genet.skip_umac_reset=n
|
|
|
|
to the command line to disable it.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/3108
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|
---
|
|
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 8 ++++++++
|
|
1 file changed, 8 insertions(+)
|
|
|
|
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
|
|
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
|
|
@@ -67,6 +67,9 @@
|
|
|
|
/* Forward declarations */
|
|
static void bcmgenet_set_rx_mode(struct net_device *dev);
|
|
+static bool skip_umac_reset = true;
|
|
+module_param(skip_umac_reset, bool, 0444);
|
|
+MODULE_PARM_DESC(skip_umac_reset, "Skip UMAC reset step");
|
|
|
|
static inline void bcmgenet_writel(u32 value, void __iomem *offset)
|
|
{
|
|
@@ -2446,6 +2449,11 @@ static void reset_umac(struct bcmgenet_p
|
|
bcmgenet_rbuf_ctrl_set(priv, 0);
|
|
udelay(10);
|
|
|
|
+ if (skip_umac_reset) {
|
|
+ pr_warn("Skipping UMAC reset\n");
|
|
+ return;
|
|
+ }
|
|
+
|
|
/* issue soft reset and disable MAC while updating its registers */
|
|
bcmgenet_umac_writel(priv, CMD_SW_RESET, UMAC_CMD);
|
|
udelay(2);
|