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author | Daniel Palmer <daniel@0x0f.com> | 2020-12-01 22:43:21 +0900 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2020-12-09 17:45:39 +0100 |
commit | 80e73332ee829cd55d86272b7d3d4d5f0fc4c4ff (patch) | |
tree | f2ca5c4125c208b13b86e4155ef7c3a9b4840fb1 /Documentation/devicetree/bindings/arm/mstar | |
parent | 5b8a05b9e8d10c8df29bb719e73ea8ed916a1eea (diff) | |
download | linux-80e73332ee829cd55d86272b7d3d4d5f0fc4c4ff.tar.bz2 |
dt-bindings: mstar: Add binding details for mstar,smpctrl
This adds a YAML description of the smpctrl node needed by the
platform code for the MStar/SigmaStar Armv7 SoCs to boot secondary cpus.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20201201134330.3037007-2-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/mstar')
-rw-r--r-- | Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml b/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml new file mode 100644 index 000000000000..599c65980f5d --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2020 thingy.jp. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/arm/mstar/mstar,smpctrl.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: MStar/SigmaStar Armv7 SoC SMP control registers + +maintainers: + - Daniel Palmer <daniel@thingy.jp> + +description: | + MStar/SigmaStar's Armv7 SoCs that have more than one processor + have a region of registers that allow setting the boot address + and a magic number that allows secondary processors to leave + the loop they are parked in by the boot ROM. + +properties: + compatible: + items: + - enum: + - sstar,ssd201-smpctrl # SSD201/SSD202D + - const: mstar,smpctrl + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + smpctrl@204000 { + compatible = "sstar,ssd201-smpctrl", "mstar,smpctrl"; + reg = <0x204000 0x200>; + }; |