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| author | Alexandru Gagniuc <alex.g@adaptrum.com> | 2017-07-07 21:36:57 +0300 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2017-08-07 23:18:30 +0300 |
| commit | d397f7c45b0b87a7e1083c57a320c559e7848268 (patch) | |
| tree | a2600e0594c196b43548178246c5692483432634 /drivers/net/phy/Kconfig | |
| parent | cb543d30df00d4db67f429dfa5515227e7af4014 (diff) | |
| download | u-boot-d397f7c45b0b87a7e1083c57a320c559e7848268.tar.xz | |
net: phy: micrel: Separate KSZ9000 drivers from KSZ8000 drivers
The KS8721BL and KSZ9021 PHYs are software-incompatible, yet they
share the same ID. Drivers for bothe PHYs cannot safely coexist, so
the solution was to use #ifdefs to select between the two drivers.
As a result KSZ9031, which has a unique ID, is now caught in the
crossfire. Unless CONFIG_PHY_MICREL_KSZ9031 is defined, the KSZ9031
will not function properly, as some essential configuration code is
ifdef'd-out.
To prevent such situations, move the KSZ9000 drivers to a separate
file, and place them under a separate Kconfig option. While it is
possible to enable both KSZ8000 and KSZ9000 drivers at the same time,
the assumption is that it is highly unlikely for a system to contain
both a KSZ8000 and a KSZ9000 PHY, and that only one of the drivers
will be enabled at any given time.
Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers/net/phy/Kconfig')
| -rw-r--r-- | drivers/net/phy/Kconfig | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 1afd8097b2..aecf7ed91f 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -69,6 +69,7 @@ if PHY_MICREL config PHY_MICREL_KSZ9021 bool "Micrel KSZ9021 family support" select PHY_GIGE + select PHY_MICREL_KSZ90X1 help Enable support for the Micrel KSZ9021 GbE PHY family. If enabled, the extended register read/write for KSZ9021 PHYs @@ -80,9 +81,12 @@ config PHY_MICREL_KSZ9021 KSZ8921BL, so enabling this option disables support for the KSZ8721BL. + Deprecated. Use PHY_MICREL_KSZ90X1 instead. + config PHY_MICREL_KSZ9031 bool "Micrel KSZ9031 family support" select PHY_GIGE + select PHY_MICREL_KSZ90X1 help Enable support for the Micrel KSZ9031 GbE PHY family. If enabled, the extended register read/write for KSZ9021 PHYs @@ -90,6 +94,32 @@ config PHY_MICREL_KSZ9031 delays configured in the device tree will be applied to the PHY during initialisatioin. + Deprecated. Use PHY_MICREL_KSZ90X1 instead. + +config PHY_MICREL_KSZ90X1 + bool "Micrel KSZ90x1 family support" + select PHY_GIGE + help + Enable support for the Micrel KSZ9021 and KSZ9031 GbE PHYs. If + enabled, the extended register read/write for KSZ90x1 PHYs + is supported through the 'mdio' command and any RGMII signal + delays configured in the device tree will be applied to the + PHY during initialization. + + This should not be enabled at the same time with PHY_MICREL_KSZ8XXX + as the KSZ9021 and KS8721 share the same ID. + +config PHY_MICREL_KSZ8XXX + bool "Micrel KSZ8xxx family support" + default y if !PHY_MICREL_KSZ90X1 + help + Enable support for the 8000 series GbE PHYs manufactured by Micrel + (now a part of Microchip). This includes drivers for the KSZ804, + KSZ8031, KSZ8051, KSZ8081, KSZ8895, KSZ886x, and KSZ8721. + + This should not be enabled at the same time with PHY_MICREL_KSZ90X1 + as the KSZ9021 and KS8721 share the same ID. + endif # PHY_MICREL config PHY_MSCC |