From: Heiko Stuebner <heiko@sntech•de>
To: srinivas.kandagatla@linaro•org
Cc: mark.rutland@arm•com, devicetree@vger•kernel.org,
Heiko Stuebner <heiko@sntech•de>,
linux-kernel@vger•kernel.org, linux-rockchip@lists•infradead.org,
robh+dt@kernel•org, linux-arm-kernel@lists•infradead.org,
christoph.muellner@theobroma-systems•com
Subject: [PATCH 1/2] dt-bindings: nvmem: add binding for Rockchip OTP controller
Date: Wed, 25 Sep 2019 20:49:56 +0200 [thread overview]
Message-ID: <20190925184957.14338-1-heiko@sntech.de> (raw)
Newer Rockchip SoCs use a different IP for accessing special one-
time-programmable memory, so add a binding for these controllers.
Signed-off-by: Heiko Stuebner <heiko@sntech•de>
---
.../bindings/nvmem/rockchip-otp.txt | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 Documentation/devicetree/bindings/nvmem/rockchip-otp.txt
diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-otp.txt b/Documentation/devicetree/bindings/nvmem/rockchip-otp.txt
new file mode 100644
index 000000000000..40f649f7c2e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/rockchip-otp.txt
@@ -0,0 +1,25 @@
+Rockchip internal OTP (One Time Programmable) memory device tree bindings
+
+Required properties:
+- compatible: Should be one of the following.
+ - "rockchip,px30-otp" - for PX30 SoCs.
+ - "rockchip,rk3308-otp" - for RK3308 SoCs.
+- reg: Should contain the registers location and size
+- clocks: Must contain an entry for each entry in clock-names.
+- clock-names: Should be "otp", "apb_pclk" and "phy".
+- resets: Must contain an entry for each entry in reset-names.
+ See ../../reset/reset.txt for details.
+- reset-names: Should be "phy".
+
+See nvmem.txt for more information.
+
+Example:
+ otp: otp@ff290000 {
+ compatible = "rockchip,px30-otp";
+ reg = <0x0 0xff290000 0x0 0x4000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>,
+ <&cru PCLK_OTP_PHY>;
+ clock-names = "otp", "apb_pclk", "phy";
+ };
--
2.23.0
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next reply other threads:[~2019-09-25 18:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 18:49 Heiko Stuebner [this message]
2019-09-25 18:49 ` [PATCH 2/2] nvmem: add Rockchip OTP driver Heiko Stuebner
2019-10-01 10:51 ` Srinivas Kandagatla
2019-10-07 13:26 ` [PATCH 1/2] dt-bindings: nvmem: add binding for Rockchip OTP controller Heiko Stübner
2019-10-14 19:50 ` Rob Herring
2019-10-22 12:24 ` Srinivas Kandagatla
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