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Message-ID: <1401281677-32110-5-git-send-email-pdeschrijver@nvidia.com>
Date: Wed, 28 May 2014 15:54:36 +0300
From: Peter De Schrijver <pdeschrijver@...dia.com>
To: Peter De Schrijver <pdeschrijver@...dia.com>
CC: Russell King <linux@....linux.org.uk>,
Stephen Warren <swarren@...dotorg.org>,
Thierry Reding <thierry.reding@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Linus Walleij <linus.walleij@...aro.org>,
Wolfram Sang <wsa@...-dreams.de>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v5 4/5] ARM: tegra: Add efuse and apbmisc bindings
Add efuse and apbmisc bindings for Tegra20, Tegra30, Tegra114 and Tegra124.
Signed-off-by: Peter De Schrijver <pdeschrijver@...dia.com>
---
.../devicetree/bindings/fuse/fuse-tegra.txt | 30 ++++++++++++++++++++
.../devicetree/bindings/misc/nvidia,apbmisc.txt | 13 ++++++++
arch/arm/boot/dts/tegra114.dtsi | 12 ++++++++
arch/arm/boot/dts/tegra124.dtsi | 12 ++++++++
arch/arm/boot/dts/tegra20.dtsi | 12 ++++++++
arch/arm/boot/dts/tegra30.dtsi | 12 ++++++++
6 files changed, 91 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/fuse/fuse-tegra.txt
create mode 100644 Documentation/devicetree/bindings/misc/nvidia,apbmisc.txt
diff --git a/Documentation/devicetree/bindings/fuse/fuse-tegra.txt b/Documentation/devicetree/bindings/fuse/fuse-tegra.txt
new file mode 100644
index 0000000..831ce50
--- /dev/null
+++ b/Documentation/devicetree/bindings/fuse/fuse-tegra.txt
@@ -0,0 +1,30 @@
+NVIDIA Tegra20/Tegra30/Tegr114/Tegra124 fuse block.
+
+Required properties:
+- compatible : should be:
+ "nvidia,tegra20-efuse"
+ "nvidia,tegra30-efuse"
+ "nvidia,tegra114-efuse"
+ "nvidia,tegra124-efuse"
+ Details:
+ nvidia,tegra20-efuse: Tegra20 requires using APB DMA to read the fuse data
+ due to a hardware bug. Tegra20 also lacks certain information which is
+ available in later generations such as fab code, lot code, wafer id,..
+ nvidia,tegra30-efuse, nvidia,tegra114-efuse and nvidia,tegra124-efuse:
+ The differences between these SoCs are the size of the efuse array,
+ the location of the spare (OEM programmable) bits and the location of
+ the speedo data.
+- reg: Should contain 1 entry: the entry gives the physical address and length
+ of the fuse registers.
+- clocks: Should contain a pointer to the fuse clock.
+
+Example:
+
+ fuse@...0f800 {
+ compatible = "nvidia,tegra20-efuse";
+ reg = <0x7000F800 0x400>,
+ <0x70000000 0x400>;
+ clocks = <&tegra_car TEGRA20_CLK_FUSE>;
+ };
+
+
diff --git a/Documentation/devicetree/bindings/misc/nvidia,apbmisc.txt b/Documentation/devicetree/bindings/misc/nvidia,apbmisc.txt
new file mode 100644
index 0000000..b97b8be
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/nvidia,apbmisc.txt
@@ -0,0 +1,13 @@
+NVIDIA Tegra20/Tegra30/Tegr114/Tegra124 apbmisc block
+
+Required properties:
+- compatible : should be:
+ "nvidia,tegra20-apbmisc"
+ "nvidia,tegra30-apbmisc"
+ "nvidia,tegra114-apbmisc"
+ "nvidia,tegra124-apbmisc"
+- reg: Should contain 2 entries: the first entry gives the physical address
+ and length of the registers which contain revision and debug features.
+ The second entry gives the physical address and length of the
+ registers indicating the strapping options.
+
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index fdc559a..d91a601 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -220,6 +220,12 @@
interrupt-controller;
};
+ apbmisc@...0000800 {
+ compatible = "nvidia,tegra114-apbmisc", "nvidia,tegra20-apbmisc";
+ reg = <0x70000800 0x64 /* Chip revision */
+ 0x70000008 0x04>; /* Strapping options */
+ };
+
pinmux: pinmux@...00868 {
compatible = "nvidia,tegra114-pinmux";
reg = <0x70000868 0x148 /* Pad control registers */
@@ -485,6 +491,12 @@
clock-names = "pclk", "clk32k_in";
};
+ fuse@...0f800 {
+ compatible = "nvidia,tegra114-efuse";
+ reg = <0x7000f800 0x400>;
+ clocks = <&tegra_car TEGRA114_CLK_FUSE>;
+ };
+
iommu@...19010 {
compatible = "nvidia,tegra114-smmu", "nvidia,tegra30-smmu";
reg = <0x70019010 0x02c
diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 6d540a0..e5bd036 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -167,6 +167,12 @@
#dma-cells = <1>;
};
+ apbmisc@...0000800 {
+ compatible = "nvidia,tegra124-apbmisc", "nvidia,tegra20-apbmisc";
+ reg = <0x0 0x70000800 0x0 0x64>, /* Chip revision */
+ <0x0 0x7000E864 0x0 0x04>; /* Strapping options */
+ };
+
pinmux: pinmux@0,70000868 {
compatible = "nvidia,tegra124-pinmux";
reg = <0x0 0x70000868 0x0 0x164>, /* Pad control registers */
@@ -437,6 +443,12 @@
clock-names = "pclk", "clk32k_in";
};
+ fuse@...0f800 {
+ compatible = "nvidia,tegra124-efuse";
+ reg = <0x0 0x7000f800 0x0 0x400>;
+ clocks = <&tegra_car TEGRA124_CLK_FUSE>;
+ };
+
sdhci@0,700b0000 {
compatible = "nvidia,tegra124-sdhci";
reg = <0x0 0x700b0000 0x0 0x200>;
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index a7ddf70..b5d1fe1 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -236,6 +236,12 @@
interrupt-controller;
};
+ apbmisc@...0000800 {
+ compatible = "nvidia,tegra20-apbmisc";
+ reg = <0x70000800 0x64 /* Chip revision */
+ 0x70000008 0x04>; /* Strapping options */
+ };
+
pinmux: pinmux@...00014 {
compatible = "nvidia,tegra20-pinmux";
reg = <0x70000014 0x10 /* Tri-state registers */
@@ -545,6 +551,12 @@
#size-cells = <0>;
};
+ fuse@...0f800 {
+ compatible = "nvidia,tegra20-efuse";
+ reg = <0x7000F800 0x400>;
+ clocks = <&tegra_car TEGRA20_CLK_FUSE>;
+ };
+
pcie-controller@...03000 {
compatible = "nvidia,tegra20-pcie";
device_type = "pci";
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index dec4fc8..bd4969d 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -335,6 +335,12 @@
interrupt-controller;
};
+ apbmisc@...0000800 {
+ compatible = "nvidia,tegra30-apbmisc", "nvidia,tegra20-apbmisc";
+ reg = <0x70000800 0x64 /* Chip revision */
+ 0x70000008 0x04>; /* Strapping options */
+ };
+
pinmux: pinmux@...00868 {
compatible = "nvidia,tegra30-pinmux";
reg = <0x70000868 0xd4 /* Pad control registers */
@@ -631,6 +637,12 @@
nvidia,ahb = <&ahb>;
};
+ fuse@...0f800 {
+ compatible = "nvidia,tegra30-efuse";
+ reg = <0x7000f800 0x400>;
+ clocks = <&tegra_car TEGRA30_CLK_FUSE>;
+ };
+
ahub@...80000 {
compatible = "nvidia,tegra30-ahub";
reg = <0x70080000 0x200
--
1.7.7.rc0.72.g4b5ea.dirty
--
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