/branches/18.06.1/target/linux/generic/backport-4.9/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch |
@@ -0,0 +1,54 @@ |
From 2355a6546a053b1c16ebefd6ce1f0cccc00e1da5 Mon Sep 17 00:00:00 2001 |
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> |
Date: Thu, 12 Oct 2017 10:21:25 +0200 |
Subject: [PATCH] net: phy: broadcom: support new device flag for setting |
master mode |
MIME-Version: 1.0 |
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Some of Broadcom's PHYs run by default in slave mode with Automatic |
Slave/Master configuration disabled. It stops them from working properly |
with some devices. |
|
So far it has been verified for BCM54210E and BCM50212E which don't |
work well with Intel's I217-LM and I218-LM: |
http://ark.intel.com/products/60019/Intel-Ethernet-Connection-I217-LM |
http://ark.intel.com/products/71307/Intel-Ethernet-Connection-I218-LM |
I was told there is massive ping loss. |
|
This commit adds support for a new flag which can be set by an ethernet |
driver to fixup PHY setup. |
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> |
Signed-off-by: David S. Miller <davem@davemloft.net> |
--- |
drivers/net/phy/broadcom.c | 6 ++++++ |
include/linux/brcmphy.h | 1 + |
2 files changed, 7 insertions(+) |
|
--- a/drivers/net/phy/broadcom.c |
+++ b/drivers/net/phy/broadcom.c |
@@ -43,6 +43,12 @@ static int bcm54210e_config_init(struct |
val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN; |
bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val); |
|
+ if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) { |
+ val = phy_read(phydev, MII_CTRL1000); |
+ val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER; |
+ phy_write(phydev, MII_CTRL1000, val); |
+ } |
+ |
return 0; |
} |
|
--- a/include/linux/brcmphy.h |
+++ b/include/linux/brcmphy.h |
@@ -59,6 +59,7 @@ |
#define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 |
#define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000 |
#define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000 |
+#define PHY_BRCM_EN_MASTER_MODE 0x00010000 |
|
/* Broadcom BCM7xxx specific workarounds */ |
#define PHY_BRCM_7XXX_REV(x) (((x) >> 8) & 0xff) |