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net: phy: broadcom: add bcm54xx_auxctl_read

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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>
This commit is contained in:
Jon Mason 2016-11-04 01:10:56 -04:00 • committed by David S. Miller
parent 94edc86bf1
commit 5b4e290051
2 changed files with 11 additions and 0 deletions
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1
include/linux/brcmphy.h
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@ -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