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| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2021-06-14 07:31:25 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-14 22:54:43 +0300 |
| commit | 49011e0c1555dd7a689d0f32fd78c1ecd43e59cd (patch) | |
| tree | 6419850c016f2e0f5acb59ce2ab6f4c0c6bd42b1 /include/linux | |
| parent | c916e8e1ea724db0f7bae36c11aaadc631226321 (diff) | |
| download | linux-49011e0c1555dd7a689d0f32fd78c1ecd43e59cd.tar.xz | |
net: phy: micrel: ksz886x/ksz8081: add cabletest support
This patch support for cable test for the ksz886x switches and the
ksz8081 PHY.
The patch was tested on a KSZ8873RLL switch with following results:
- port 1:
- provides invalid values, thus return -ENOTSUPP
(Errata: DS80000830A: "LinkMD does not work on Port 1",
http://ww1.microchip.com/downloads/en/DeviceDoc/KSZ8873-Errata-DS80000830A.pdf)
- port 2:
- can detect distance
- can detect open on each wire of pair A (wire 1 and 2)
- can detect open only on one wire of pair B (only wire 3)
- can detect short between wires of a pair (wires 1 + 2 or 3 + 6)
- short between pairs is detected as open.
For example short between wires 2 + 3 is detected as open.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/micrel_phy.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h index 58370abd9f4f..3d43c60b49fa 100644 --- a/include/linux/micrel_phy.h +++ b/include/linux/micrel_phy.h @@ -39,6 +39,7 @@ /* struct phy_device dev_flags definitions */ #define MICREL_PHY_50MHZ_CLK 0x00000001 #define MICREL_PHY_FXEN 0x00000002 +#define MICREL_KSZ8_P1_ERRATA 0x00000003 #define MICREL_KSZ9021_EXTREG_CTRL 0xB #define MICREL_KSZ9021_EXTREG_DATA_WRITE 0xC |