diff options
| author | Alan Douglas <adouglas@cadence.com> | 2018-11-12 19:42:16 +0300 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2018-12-12 07:31:38 +0300 |
| commit | 44d30d622821d3bf7fa74b62e2ea62bde314ec1b (patch) | |
| tree | ea4260171a4b59ff2ac69551a6a270acb66ecd8d /drivers/phy/cadence/Kconfig | |
| parent | cb96a690724e105f149b27a88d66669c53b01625 (diff) | |
| download | linux-44d30d622821d3bf7fa74b62e2ea62bde314ec1b.tar.xz | |
phy: cadence: Add driver for Sierra PHY
Add a Sierra PHY driver with PCIe and USB support.
The PHY has multiple lanes, which can be configured into
groups, and a generic PHY device is created for each group.
There are two resets controlling the overall PHY block, one
to enable the APB interface for programming registers, and
another to enable the PHY itself. Additionally there are
resets for each PHY lane.
The PHY can be configured in hardware to read register
settings from ROM, or they can be written by the driver.
The sequence of operation on startup is to enable the APB
bus, write the PHY registers (if required) for each lane
group, and then enable the PHY. Each group of lanes
can then be individually controlled using the power_on()/
power_off() function for that generic PHY
Signed-off-by: Alan Douglas <adouglas@cadence.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy/cadence/Kconfig')
| -rw-r--r-- | drivers/phy/cadence/Kconfig | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/phy/cadence/Kconfig b/drivers/phy/cadence/Kconfig index 57fff7de4031..2b8c0851ff33 100644 --- a/drivers/phy/cadence/Kconfig +++ b/drivers/phy/cadence/Kconfig @@ -1,5 +1,5 @@ # -# Phy driver for Cadence MHDP DisplayPort controller +# Phy drivers for Cadence PHYs # config PHY_CADENCE_DP tristate "Cadence MHDP DisplayPort PHY driver" @@ -8,3 +8,10 @@ config PHY_CADENCE_DP select GENERIC_PHY help Support for Cadence MHDP DisplayPort PHY. + +config PHY_CADENCE_SIERRA + tristate "Cadence Sierra PHY Driver" + depends on OF && HAS_IOMEM && RESET_CONTROLLER + select GENERIC_PHY + help + Enable this to support the Cadence Sierra PHY driver
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