[PATCH v4 2/7] dt-bindings: sram: Merge Samsung SRAM bindings into generic

From: Krzysztof Kozlowski
Date: Mon Oct 21 2019 - 12:14:07 EST


The Samsung SRAM bindings list only compatible so integrate them into
generic SRAM bindings schema.

Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

---

Changes since v3:
1. New patch
---
.../devicetree/bindings/sram/samsung-sram.txt | 38 -------------------
.../devicetree/bindings/sram/sram.yaml | 29 ++++++++++++++
MAINTAINERS | 1 -
3 files changed, 29 insertions(+), 39 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/sram/samsung-sram.txt

diff --git a/Documentation/devicetree/bindings/sram/samsung-sram.txt b/Documentation/devicetree/bindings/sram/samsung-sram.txt
deleted file mode 100644
index 61a9bbed303d..000000000000
--- a/Documentation/devicetree/bindings/sram/samsung-sram.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-Samsung Exynos SYSRAM for SMP bringup:
-------------------------------------
-
-Samsung SMP-capable Exynos SoCs use part of the SYSRAM for the bringup
-of the secondary cores. Once the core gets powered up it executes the
-code that is residing at some specific location of the SYSRAM.
-
-Therefore reserved section sub-nodes have to be added to the mmio-sram
-declaration. These nodes are of two types depending upon secure or
-non-secure execution environment.
-
-Required sub-node properties:
-- compatible : depending upon boot mode, should be
- "samsung,exynos4210-sysram" : for Secure SYSRAM
- "samsung,exynos4210-sysram-ns" : for Non-secure SYSRAM
-
-The rest of the properties should follow the generic mmio-sram discription
-found in Documentation/devicetree/bindings/sram/sram.txt
-
-Example:
-
- sysram@2020000 {
- compatible = "mmio-sram";
- reg = <0x02020000 0x54000>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0 0x02020000 0x54000>;
-
- smp-sysram@0 {
- compatible = "samsung,exynos4210-sysram";
- reg = <0x0 0x1000>;
- };
-
- smp-sysram@53000 {
- compatible = "samsung,exynos4210-sysram-ns";
- reg = <0x53000 0x1000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentation/devicetree/bindings/sram/sram.yaml
index d338fcaa21ed..9ed94f8b0794 100644
--- a/Documentation/devicetree/bindings/sram/sram.yaml
+++ b/Documentation/devicetree/bindings/sram/sram.yaml
@@ -64,6 +64,9 @@ patternProperties:
description:
Should contain a vendor specific string in the form
<vendor>,[<device>-]<usage>
+ enum:
+ - samsung,exynos4210-sysram
+ - samsung,exynos4210-sysram-ns

reg:
description:
@@ -135,3 +138,29 @@ examples:
export;
};
};
+
+ - |
+ // Samsung SMP-capable Exynos SoCs use part of the SYSRAM for the bringup
+ // of the secondary cores. Once the core gets powered up it executes the
+ // code that is residing at some specific location of the SYSRAM.
+ //
+ // Therefore reserved section sub-nodes have to be added to the mmio-sram
+ // declaration. These nodes are of two types depending upon secure or
+ // non-secure execution environment.
+ sram@2020000 {
+ compatible = "mmio-sram";
+ reg = <0x02020000 0x54000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x02020000 0x54000>;
+
+ smp-sram@0 {
+ compatible = "samsung,exynos4210-sysram";
+ reg = <0x0 0x1000>;
+ };
+
+ smp-sram@53000 {
+ compatible = "samsung,exynos4210-sysram-ns";
+ reg = <0x53000 0x1000>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 56c78eadfdc5..699ad8f1eb38 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2235,7 +2235,6 @@ F: drivers/soc/samsung/
F: include/linux/soc/samsung/
F: Documentation/arm/samsung/
F: Documentation/devicetree/bindings/arm/samsung/
-F: Documentation/devicetree/bindings/sram/samsung-sram.txt
F: Documentation/devicetree/bindings/power/pd-samsung.txt
N: exynos

--
2.17.1