mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 17:48:58 +00:00
42cb0f0f26
Build system: x86_64 Build-tested: x86_64/ACEMAGICIAN T8PLUS, ramips/tplink_archer-a6-v3 Run-tested: x86_64/ACEMAGICIAN T8PLUS, ramips/tplink_archer-a6-v3 Signed-off-by: John Audia <therealgraysky@proton.me>
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
From 3fb8841513c4ec3a2e5d366df86230c45f239a57 Mon Sep 17 00:00:00 2001
|
|
From: Alexander Couzens <lynxis@fe80.eu>
|
|
Date: Sat, 13 Aug 2022 13:08:22 +0200
|
|
Subject: [PATCH 03/10] net: mt7531: ensure all MACs are powered down before
|
|
reset
|
|
|
|
The datasheet [1] explicit describes it as requirement for a reset.
|
|
|
|
[1] MT7531 Reference Manual for Development Board rev 1.0, page 735
|
|
|
|
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
|
|
---
|
|
drivers/net/dsa/mt7530.c | 6 +++++-
|
|
1 file changed, 5 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/net/dsa/mt7530.c
|
|
+++ b/drivers/net/dsa/mt7530.c
|
|
@@ -2422,7 +2422,7 @@ mt7531_setup(struct dsa_switch *ds)
|
|
struct mt7530_priv *priv = ds->priv;
|
|
struct mt7530_dummy_poll p;
|
|
u32 val, id;
|
|
- int ret;
|
|
+ int ret, i;
|
|
|
|
/* Reset whole chip through gpio pin or memory-mapped registers for
|
|
* different type of hardware
|
|
@@ -2454,6 +2454,10 @@ mt7531_setup(struct dsa_switch *ds)
|
|
return -ENODEV;
|
|
}
|
|
|
|
+ /* all MACs must be forced link-down before sw reset */
|
|
+ for (i = 0; i < MT7530_NUM_PORTS; i++)
|
|
+ mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
|
|
+
|
|
/* Reset the switch through internal reset */
|
|
mt7530_write(priv, MT7530_SYS_CTRL,
|
|
SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
|