From 155dfc7b543345ed45521900bbd32c0db4ea266e Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Thu, 12 Jun 2014 18:36:38 +0300 Subject: soc/tegra: Add efuse and apbmisc bindings Add efuse and apbmisc bindings for Tegra20, Tegra30, Tegra114 and Tegra124. Signed-off-by: Peter De Schrijver Signed-off-by: Stephen Warren Signed-off-by: Thierry Reding --- .../bindings/fuse/nvidia,tegra20-fuse.txt | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/fuse/nvidia,tegra20-fuse.txt (limited to 'Documentation/devicetree/bindings/fuse') diff --git a/Documentation/devicetree/bindings/fuse/nvidia,tegra20-fuse.txt b/Documentation/devicetree/bindings/fuse/nvidia,tegra20-fuse.txt new file mode 100644 index 000000000000..d8c98c7614d0 --- /dev/null +++ b/Documentation/devicetree/bindings/fuse/nvidia,tegra20-fuse.txt @@ -0,0 +1,40 @@ +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: Must contain an entry for each entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names: Must include the following entries: + - fuse +- resets: Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names: Must include the following entries: + - fuse + +Example: + + fuse@7000f800 { + compatible = "nvidia,tegra20-efuse"; + reg = <0x7000F800 0x400>, + <0x70000000 0x400>; + clocks = <&tegra_car TEGRA20_CLK_FUSE>; + clock-names = "fuse"; + resets = <&tegra_car 39>; + reset-names = "fuse"; + }; + + -- cgit v1.2.3