mirror of https://github.com/hak5/openwrt.git
42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
|
From: Jon Mason <jon.mason@broadcom.com>
|
||
|
|
Date: Fri, 4 Nov 2016 01:10:56 -0400
|
||
|
|
Subject: [PATCH] net: phy: broadcom: add bcm54xx_auxctl_read
|
||
|
|
|
||
|
|
Add a helper function to read the AUXCTL register for the BCM54xx. This
|
||
|
|
mirrors the bcm54xx_auxctl_write function already present in the code.
|
||
|
|
|
||
|
|
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
|
||
|
|
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
|
||
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|
|
---
|
||
|
|
|
||
|
|
--- a/drivers/net/phy/broadcom.c
|
||
|
|
+++ b/drivers/net/phy/broadcom.c
|
||
|
|
@@ -30,6 +30,16 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
|
||
|
|
MODULE_AUTHOR("Maciej W. Rozycki");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
|
||
|
|
+static int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
|
||
|
|
+{
|
||
|
|
+ /* The register must be written to both the Shadow Register Select and
|
||
|
|
+ * the Shadow Read Register Selector
|
||
|
|
+ */
|
||
|
|
+ phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
|
||
|
|
+ regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
|
||
|
|
+ return phy_read(phydev, MII_BCM54XX_AUX_CTL);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
|
||
|
|
{
|
||
|
|
return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
|
||
|
|
--- a/include/linux/brcmphy.h
|
||
|
|
+++ b/include/linux/brcmphy.h
|
||
|
|
@@ -110,6 +110,7 @@
|
||
|
|
#define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX 0x0200
|
||
|
|
#define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC 0x7000
|
||
|
|
#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC 0x0007
|
||
|
|
+#define MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT 12
|
||
|
|
|
||
|
|
#define MII_BCM54XX_AUXCTL_SHDWSEL_MASK 0x0007
|
||
|
|
|