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authorTomasz Figa <t.figa@samsung.com>2012-12-11 13:58:43 +0900
committerKukjin Kim <kgene.kim@samsung.com>2013-04-09 01:52:30 +0900
commitbca28f8f6b93fc1fb000d8695e59266d307aceab (patch)
tree730be4b040f57319ee5266d404107d618ad49282 /Documentation/devicetree
parenta4a18d2b3a9245ac43eec1e2eddd6b929b8f0bb9 (diff)
downloadblackbird-op-linux-bca28f8f6b93fc1fb000d8695e59266d307aceab.tar.gz
blackbird-op-linux-bca28f8f6b93fc1fb000d8695e59266d307aceab.zip
ARM: EXYNOS: Add support for Exynos secure firmware
Some Exynos-based boards contain secure firmware and must use firmware operations to set up some hardware. This patch adds firmware operations for Exynos secure firmware and a way for board code and device tree to specify that they must be used. Example of use: In board code: ...MACHINE_START(...) /* ... */ .init_early = exynos_firmware_init, /* ... */ MACHINE_END In device tree: / { /* ... */ firmware@0203F000 { compatible = "samsung,secure-firmware"; reg = <0x0203F000 0x1000>; }; /* ... */ }; Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/arm/samsung-boards.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/samsung-boards.txt b/Documentation/devicetree/bindings/arm/samsung-boards.txt
index 0bf68be56fd1..2168ed31e1b0 100644
--- a/Documentation/devicetree/bindings/arm/samsung-boards.txt
+++ b/Documentation/devicetree/bindings/arm/samsung-boards.txt
@@ -6,3 +6,13 @@ Required root node properties:
- compatible = should be one or more of the following.
(a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board.
(b) "samsung,exynos4210" - for boards based on Exynos4210 SoC.
+
+Optional:
+ - firmware node, specifying presence and type of secure firmware:
+ - compatible: only "samsung,secure-firmware" is currently supported
+ - reg: address of non-secure SYSRAM used for communication with firmware
+
+ firmware@0203F000 {
+ compatible = "samsung,secure-firmware";
+ reg = <0x0203F000 0x1000>;
+ };
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