diff options
| author | Stefan Roese | 2017-07-18 14:10:49 +0200 |
|---|---|---|
| committer | Bin Meng | 2017-07-30 10:30:25 +0800 |
| commit | 1f4e25780a827de9526b5f60b8a574b1e4f45b9c (patch) | |
| tree | d9e2b20d602126a310c4a74f7bbe211e906fb0e1 /arch | |
| parent | db1d20a904f583b39e75ee47828aa9e644245460 (diff) | |
x86: dfi-bt700: Add xHCI USB support
Change from EHCI to xHCI on the DFI BayTrail SoM.
The xHCI USB hub is connected to an GPIO on the DFI BayTrail SoM. For
correct operation, it needs to get reset upon power-up. Otherwise it
may happen that the hub is not detected after a software reboot. This
patch also configures this GPIO in the dts for correct operation.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/dts/dfi-bt700.dtsi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/dts/dfi-bt700.dtsi b/arch/x86/dts/dfi-bt700.dtsi index 04aa95ad52f..b62e00ff1fd 100644 --- a/arch/x86/dts/dfi-bt700.dtsi +++ b/arch/x86/dts/dfi-bt700.dtsi @@ -47,6 +47,15 @@ pad-offset = <0x3a0>; mode-func = <1>; }; + + xhci_hub_reset: usb_ulpi_stp@0 { + gpio-offset = <0xa0 10>; + pad-offset = <0x23b0>; + mode-func = <0>; + mode-gpio; + output-value = <1>; + direction = <PIN_OUTPUT>; + }; }; chosen { @@ -261,6 +270,9 @@ fsp,enable-spi; fsp,enable-sata; fsp,sata-mode = <SATA_MODE_AHCI>; +#ifdef CONFIG_USB_XHCI_HCD + fsp,enable-xhci; +#endif fsp,lpe-mode = <LPE_MODE_PCI>; fsp,lpss-sio-mode = <LPSS_SIO_MODE_PCI>; fsp,enable-dma0; |