[PATCH net] net: phy: broadcom: Fix RGMII delays for BCM50160 and BCM50610M
From: Florian Fainelli <f.fainelli@gmail.com>
Date: 2021-03-12 00:54:00
Also in:
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Subsystem:
broadcom ethernet phy drivers, ethernet phy library, networking drivers, the rest · Maintainers:
Florian Fainelli, Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The PHY driver entry for BCM50160 and BCM50610M calls
bcm54xx_config_init() but does not call bcm54xx_config_clock_delay() in
order to configuration appropriate clock delays on the PHY, fix that.
Fixes: 733336262b28 ("net: phy: Allow BCM5481x PHYs to setup internal TX/RX clock delay")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
Hi,
More (all) PHY entries that support RGMII should arguably do the same
thing here but given that we had a bad history of seeing broken
DTS/DTBs, I prefer to take a conservative approach here and submit a
localized fix to the hardware I just had to test this on.
While this dates back to before the commit in Fixes tag, that commit
introduces the bcm54xx_config_clock_delay() function and would make it
go far enough for stable back ports.
drivers/net/phy/broadcom.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index fa0be591ae79..4c2f8bb51eef 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c@@ -342,6 +342,10 @@ static int bcm54xx_config_init(struct phy_device *phydev) bcm54xx_adjust_rxrefclk(phydev); switch (BRCM_PHY_MODEL(phydev)) { + case PHY_ID_BCM50610: + case PHY_ID_BCM50610M: + err = bcm54xx_config_clock_delay(phydev); + break; case PHY_ID_BCM54210E: err = bcm54210e_config_init(phydev); break;
--
2.25.1