[PATCH v2] usb: dwc2: add amcc,dwc-otg support
From: John Youn <hidden>
Date: 2016-11-15 19:59:10
Also in:
linux-devicetree, lkml
Subsystem:
designware usb2 drd ip driver, open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers:
Minas Harutyunyan, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman
From: Christian Lamparter <chunkeey@googlemail.com>
This patch adds support for the "amcc,usb-otg" device
which is found in the PowerPC Canyonlands' dts.
The device definition was added by:
commit c89b3458d8cc ("powerpc/44x: Add USB DWC DTS entry to Canyonlands
board")
but without any driver support as the dwc2 driver wasn't available at
that time.
Note: The system can't use the generic "snps,dwc2" compatible
because of the special ahbcfg configuration. The default
GAHBCFG_HBSTLEN_INCR4 of snps,dwc2 can cause a system hang
when the USB and SATA is used concurrently.
Signed-off-by: Christian Lamparter <redacted>
Signed-off-by: John Youn <redacted>
---
v2 [johnyoun]:
* Removed params struct
* Minor commit message formatting
Documentation/devicetree/bindings/usb/dwc2.txt | 1 +
drivers/usb/dwc2/params.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index ad8f7ff..6c7c2bce 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt@@ -12,6 +12,7 @@ Required properties: - "lantiq,xrx200-usb": The DWC2 USB controller instance in Lantiq XRX SoCs; - "amlogic,meson8b-usb": The DWC2 USB controller instance in Amlogic Meson8b SoCs; - "amlogic,meson-gxbb-usb": The DWC2 USB controller instance in Amlogic S905 SoCs; + - "amcc,dwc-otg": The DWC2 USB controller instance in AMCC Canyonlands 460EX SoCs; - snps,dwc2: A generic DWC2 USB controller with default parameters. - reg : Should contain 1 register range (address and length) - interrupts : Should contain 1 interrupt
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 513556a..7991c21 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c@@ -239,6 +239,7 @@ const struct of_device_id dwc2_of_match_table[] = { { .compatible = "samsung,s3c6400-hsotg", .data = NULL}, { .compatible = "amlogic,meson8b-usb", .data = ¶ms_amlogic }, { .compatible = "amlogic,meson-gxbb-usb", .data = ¶ms_amlogic }, + { .compatible = "amcc,dwc-otg", .data = ¶ms_amcc_dwc_otg }, {}, }; MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
--
2.10.0