From: Sugaya Taichi <sugaya.taichi@socionext.com>
Date: Wed, 27 Feb 2019 04:51:49 +0000 (+0900)
Subject: dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram
X-Git-Tag: v5.1-rc1~154^2^2~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1d0bf7b9d308c01113eaead72a5578ca6fc01146;p=thirdparty%2Fkernel%2Flinux.git

dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram

The Milbeaut M10V SoC needs a part of sram for smp, so this adds the
M10V sram compatible and binding.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

diff --git a/Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt b/Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt
new file mode 100644
index 0000000000000..194f6a3c1c1e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt
@@ -0,0 +1,24 @@
+Milbeaut SRAM for smp bringup
+
+Milbeaut SoCs use a part of the sram for the bringup of the secondary cores.
+Once they get powered up in the bootloader, they stay at the specific part
+of the sram.
+Therefore the part needs to be added as the sub-node of mmio-sram.
+
+Required sub-node properties:
+- compatible : should be "socionext,milbeaut-smp-sram"
+
+Example:
+
+        sram: sram@0 {
+                compatible = "mmio-sram";
+                reg = <0x0 0x10000>;
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges = <0 0x0 0x10000>;
+
+                smp-sram@f100 {
+                        compatible = "socionext,milbeaut-smp-sram";
+                        reg = <0xf100 0x20>;
+                };
+        };