mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 10:39:04 +00:00
72 lines
2.2 KiB
Diff
72 lines
2.2 KiB
Diff
commit 797ac07137d9ae8572008e21e6123a9ae17dae50
|
|
Author: Florian Fainelli <f.fainelli@gmail.com>
|
|
Date: Mon Feb 17 13:34:02 2014 -0800
|
|
|
|
net: phy: move PHY software reset to genphy_soft_reset
|
|
|
|
As pointed out by Shaohui, this function is generic for 10/100/1000
|
|
PHYs, but 10G PHYs might have a slightly different reset sequence which
|
|
prevents most of them from using this function.
|
|
|
|
Move the BMCR_RESET based software resent sequence to
|
|
genphy_soft_reset() in preparation for allowing PHY drivers to implement
|
|
a soft_reset() callback.
|
|
|
|
Reported-by: Shaohui Xie <Shaohui.Xie@freescale.com>
|
|
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
|
|
--- a/drivers/net/phy/phy_device.c
|
|
+++ b/drivers/net/phy/phy_device.c
|
|
@@ -539,11 +539,7 @@ int phy_init_hw(struct phy_device *phyde
|
|
if (!phydev->drv || !phydev->drv->config_init)
|
|
return 0;
|
|
|
|
- ret = phy_write(phydev, MII_BMCR, BMCR_RESET);
|
|
- if (ret < 0)
|
|
- return ret;
|
|
-
|
|
- ret = phy_poll_reset(phydev);
|
|
+ ret = genphy_soft_reset(phydev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
@@ -1029,6 +1025,27 @@ static int gen10g_read_status(struct phy
|
|
return 0;
|
|
}
|
|
|
|
+/**
|
|
+ * genphy_soft_reset - software reset the PHY via BMCR_RESET bit
|
|
+ * @phydev: target phy_device struct
|
|
+ *
|
|
+ * Description: Perform a software PHY reset using the standard
|
|
+ * BMCR_RESET bit and poll for the reset bit to be cleared.
|
|
+ *
|
|
+ * Returns: 0 on success, < 0 on failure
|
|
+ */
|
|
+int genphy_soft_reset(struct phy_device *phydev)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ ret = phy_write(phydev, MII_BMCR, BMCR_RESET);
|
|
+ if (ret < 0)
|
|
+ return ret;
|
|
+
|
|
+ return phy_poll_reset(phydev);
|
|
+}
|
|
+EXPORT_SYMBOL(genphy_soft_reset);
|
|
+
|
|
static int genphy_config_init(struct phy_device *phydev)
|
|
{
|
|
int val;
|
|
--- a/include/linux/phy.h
|
|
+++ b/include/linux/phy.h
|
|
@@ -616,6 +616,7 @@ int genphy_update_link(struct phy_device
|
|
int genphy_read_status(struct phy_device *phydev);
|
|
int genphy_suspend(struct phy_device *phydev);
|
|
int genphy_resume(struct phy_device *phydev);
|
|
+int genphy_soft_reset(struct phy_device *phydev);
|
|
void phy_driver_unregister(struct phy_driver *drv);
|
|
void phy_drivers_unregister(struct phy_driver *drv, int n);
|
|
int phy_driver_register(struct phy_driver *new_driver);
|