mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
|
From: Roman Yeryomin <roman@advem.lv>
|
||
|
|
Subject: kernel: add at803x fix for sgmii mode
|
||
|
|
|
||
|
|
Some (possibly broken) bootloaders incorreclty initialize at8033
|
||
|
|
phy. This patch enables sgmii autonegotiation mode.
|
||
|
|
|
||
|
|
[john@phrozen.org: felix added this to his upstream queue]
|
||
|
|
|
||
|
|
Signed-off-by: Roman Yeryomin <roman@advem.lv>
|
||
|
|
---
|
||
|
|
drivers/net/phy/at803x.c | 25 +++++++++++++++++++++++++
|
||
|
|
1 file changed, 25 insertions(+)
|
||
|
|
|
||
|
|
--- a/drivers/net/phy/at803x.c
|
||
|
|
+++ b/drivers/net/phy/at803x.c
|
||
|
|
@@ -76,6 +76,7 @@
|
||
|
|
#define AT803X_LOC_MAC_ADDR_32_47_OFFSET 0x804A
|
||
|
|
#define AT803X_REG_CHIP_CONFIG 0x1f
|
||
|
|
#define AT803X_BT_BX_REG_SEL 0x8000
|
||
|
|
+#define AT803X_SGMII_ANEG_EN 0x1000
|
||
|
|
|
||
|
|
#define AT803X_DEBUG_ADDR 0x1D
|
||
|
|
#define AT803X_DEBUG_DATA 0x1E
|
||
|
|
@@ -562,6 +563,27 @@ static int at8031_pll_config(struct phy_
|
||
|
|
static int at803x_config_init(struct phy_device *phydev)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
+ u32 v;
|
||
|
|
+
|
||
|
|
+ if (phydev->drv->phy_id == ATH8031_PHY_ID &&
|
||
|
|
+ phydev->interface == PHY_INTERFACE_MODE_SGMII)
|
||
|
|
+ {
|
||
|
|
+ v = phy_read(phydev, AT803X_REG_CHIP_CONFIG);
|
||
|
|
+ /* select SGMII/fiber page */
|
||
|
|
+ ret = phy_write(phydev, AT803X_REG_CHIP_CONFIG,
|
||
|
|
+ v & ~AT803X_BT_BX_REG_SEL);
|
||
|
|
+ if (ret)
|
||
|
|
+ return ret;
|
||
|
|
+ /* enable SGMII autonegotiation */
|
||
|
|
+ ret = phy_write(phydev, MII_BMCR, AT803X_SGMII_ANEG_EN);
|
||
|
|
+ if (ret)
|
||
|
|
+ return ret;
|
||
|
|
+ /* select copper page */
|
||
|
|
+ ret = phy_write(phydev, AT803X_REG_CHIP_CONFIG,
|
||
|
|
+ v | AT803X_BT_BX_REG_SEL);
|
||
|
|
+ if (ret)
|
||
|
|
+ return ret;
|
||
|
|
+ }
|
||
|
|
|
||
|
|
/* The RX and TX delay default is:
|
||
|
|
* after HW reset: RX delay enabled and TX delay disabled
|