linux-kernel - [PATCH net-next 2/3] net: phy: broadcom: Fix RXC/TXC auto disabling

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Message-Id: <20210212205721.2406849-3-f.fainelli@gmail.com>
Date:   Fri, 12 Feb 2021 12:57:20 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Michael Chan <mchan@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com (open list:BROADCOM ETHERNET PHY
        DRIVERS), linux-kernel@...r.kernel.org (open list),
        olteanv@...il.com, michael@...le.cc
Subject: [PATCH net-next 2/3] net: phy: broadcom: Fix RXC/TXC auto disabling

When support for optionally disabling the TXC was introduced, bit 2 was
used to do that operation but the datasheet for 50610M from 2009 does
not show bit 2 as being defined. Bit 8 is the one that allows automatic
disabling of the RXC/TXC auto disabling during auto power down.

Fixes: 52fae0837153 ("tg3 / broadcom: Optionally disable TXC if no link")
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 include/linux/brcmphy.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index da7bf9dfef5b..3dd8203cf780 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -193,7 +193,7 @@
 #define BCM54XX_SHD_SCR3		0x05
 #define  BCM54XX_SHD_SCR3_DEF_CLK125	0x0001
 #define  BCM54XX_SHD_SCR3_DLLAPD_DIS	0x0002
-#define  BCM54XX_SHD_SCR3_TRDDAPD	0x0004
+#define  BCM54XX_SHD_SCR3_TRDDAPD	0x0100
 
 /* 01010: Auto Power-Down */
 #define BCM54XX_SHD_APD			0x0a
-- 
2.25.1