From: Peter Griffin <peter.griffin@linaro.org>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, stern@rowland.harvard.edu,
gregkh@linuxfoundation.org, srinivas.kandagatla@gmail.com,
maxime.coquelin@st.com, patrice.chotard@st.com, arnd@arndb.de
Cc: peter.griffin@linaro.org, lee.jones@linaro.org,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH RESEND v5 3/5] usb: host: ehci-st: Add ehci-st devicetree bindings documentation
Date: Fri, 5 Sep 2014 18:23:47 +0100 [thread overview]
Message-ID: <1409937829-23708-4-git-send-email-peter.griffin@linaro.org> (raw)
In-Reply-To: <1409937829-23708-1-git-send-email-peter.griffin@linaro.org>
This patch documents the device tree bindings required for the
ehci on-chip controller found in ST consumer electronics SoC's.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
---
Documentation/devicetree/bindings/usb/ehci-st.txt | 39 +++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/ehci-st.txt
diff --git a/Documentation/devicetree/bindings/usb/ehci-st.txt b/Documentation/devicetree/bindings/usb/ehci-st.txt
new file mode 100644
index 0000000..fb45fa5
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ehci-st.txt
@@ -0,0 +1,39 @@
+ST USB EHCI controller
+
+Required properties:
+ - compatible : must be "st,st-ehci-300x"
+ - reg : physical base addresses of the controller and length of memory mapped
+ region
+ - interrupts : one EHCI interrupt should be described here
+ - pinctrl-names : a pinctrl state named "default" must be defined
+ - pinctrl-0 : phandle referencing pin configuration of the USB controller
+See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
+ - clocks : phandle list of usb clocks
+ - clock-names : should be "ic" for interconnect clock and "clk48"
+See: Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+ - phys : phandle for the PHY device
+ - phy-names : should be "usb"
+ - resets : phandle + reset specifier pairs to the powerdown and softreset lines
+ of the USB IP
+ - reset-names : should be "power" and "softreset"
+See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
+See: Documentation/devicetree/bindings/reset/reset.txt
+
+Example:
+
+ ehci1: usb@0xfe203e00 {
+ compatible = "st,st-ehci-300x";
+ reg = <0xfe203e00 0x100>;
+ interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb1>;
+ clocks = <&clk_s_a1_ls 0>;
+ phys = <&usb2_phy>;
+ phy-names = "usb";
+ status = "okay";
+
+ resets = <&powerdown STIH416_USB1_POWERDOWN>,
+ <&softreset STIH416_USB1_SOFTRESET>;
+ reset-names = "power", "softreset";
+ };
--
1.9.1
next prev parent reply other threads:[~2014-09-05 17:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 17:23 [PATCH RESEND v5 0/5] Add EHCI and OHCI drivers for STi SoC's Peter Griffin
2014-09-05 17:23 ` [PATCH RESEND v5 1/5] usb: host: ehci-st: Add EHCI support for ST STB devices Peter Griffin
2014-09-05 17:57 ` Arnd Bergmann
2014-09-05 18:16 ` Peter Griffin
2014-09-05 18:30 ` Arnd Bergmann
2014-09-05 17:23 ` [PATCH RESEND v5 2/5] usb: host: ohci-st: Add OHCI driver " Peter Griffin
2014-09-05 17:23 ` Peter Griffin [this message]
2014-09-05 17:23 ` [PATCH RESEND v5 4/5] usb: host: ohci-st: Add ohci-st devicetree bindings documentation Peter Griffin
[not found] ` <1409937829-23708-1-git-send-email-peter.griffin-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-09-05 17:23 ` [PATCH RESEND v5 5/5] MAINTAINERS: Add ehci-st.c and ohci-st.c to ARCH/STI architecture Peter Griffin
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