diff options
| author | Tom Rini <[email protected]> | 2025-03-14 19:27:36 -0600 |
|---|---|---|
| committer | Marek Vasut <[email protected]> | 2025-05-25 15:44:13 +0200 |
| commit | 831a38483cf21b395bb0d9d7a34fb9b430e9bb86 (patch) | |
| tree | 97e1d15648376b642aa4d1a7d65e6b9144d0fd76 /README | |
| parent | cd9c8814b0cd0200b68f96406b3ce9f2b1a6af87 (diff) | |
usb: ulpi: Clean up how we enable support
The way we enable ULPI support today isn't something that should work.
The "optional" keyword in a choice statement is not a documented
feature. To make this work in a supported way, make USB_ULPI something
we ask about if USB_HOST is set. Next, we move the choice of what
viewer to use to be after the framework portion and to depend on that.
We then borrow a few words from the top-level README to make the help
text here clearer. Finally we make the Qualcomm driver select ULPI as
it's required and we make the tegra driver not duplicate a check that
Kconfig now handles for us.
Signed-off-by: Tom Rini <[email protected]>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 12 |
1 files changed, 0 insertions, 12 deletions
@@ -482,18 +482,6 @@ The following options need to be configured: for your device - CONFIG_USBD_PRODUCTID 0xFFFF -- ULPI Layer Support: - The ULPI (UTMI Low Pin (count) Interface) PHYs are supported via - the generic ULPI layer. The generic layer accesses the ULPI PHY - via the platform viewport, so you need both the genric layer and - the viewport enabled. Currently only Chipidea/ARC based - viewport is supported. - To enable the ULPI layer support, define CONFIG_USB_ULPI and - CONFIG_USB_ULPI_VIEWPORT in your board configuration file. - If your ULPI phy needs a different reference clock than the - standard 24 MHz then you have to define CFG_ULPI_REF_CLK to - the appropriate value in Hz. - - MMC Support: CONFIG_SH_MMCIF Support for Renesas on-chip MMCIF controller |