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authorScott Branden <sbranden@broadcom.com>2015-03-21 04:06:22 +0300
committerRob Herring <robh@kernel.org>2015-03-26 20:14:11 +0300
commit23a71fd616bf77fcc630ea514c469b0dd09cb99c (patch)
tree9172aa58dea51022af10f8f910dbdf00c120511c /Documentation/devicetree/bindings/arm/brcm-brcmstb.txt
parent9697a5595ece52a722d88f25a90ded0028e5e6b4 (diff)
downloadlinux-23a71fd616bf77fcc630ea514c469b0dd09cb99c.tar.xz
dt-bindings: brcm: rationalize Broadcom documentation naming
This patchset attempts to standardize the naming of dt-bindings documents based on the Broadcom vendor prefix of brcm. Although there are no guidelines currently present for how to name the dt-bindings document the "vendor,binding.txt" style is in use by some of the other vendors. Acked-by: Lee Jones <lee@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Gregory Fong <gregory.0xf0@gmail.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/brcm-brcmstb.txt')
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diff --git a/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt b/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt
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--- a/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt
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@@ -1,97 +0,0 @@
-ARM Broadcom STB platforms Device Tree Bindings
------------------------------------------------
-Boards with Broadcom Brahma15 ARM-based BCMxxxx (generally BCM7xxx variants)
-SoC shall have the following DT organization:
-
-Required root node properties:
- - compatible: "brcm,bcm<chip_id>", "brcm,brcmstb"
-
-example:
-/ {
- #address-cells = <2>;
- #size-cells = <2>;
- model = "Broadcom STB (bcm7445)";
- compatible = "brcm,bcm7445", "brcm,brcmstb";
-
-Further, syscon nodes that map platform-specific registers used for general
-system control is required:
-
- - compatible: "brcm,bcm<chip_id>-sun-top-ctrl", "syscon"
- - compatible: "brcm,bcm<chip_id>-hif-cpubiuctrl", "syscon"
- - compatible: "brcm,bcm<chip_id>-hif-continuation", "syscon"
-
-example:
- rdb {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "simple-bus";
- ranges = <0 0x00 0xf0000000 0x1000000>;
-
- sun_top_ctrl: syscon@404000 {
- compatible = "brcm,bcm7445-sun-top-ctrl", "syscon";
- reg = <0x404000 0x51c>;
- };
-
- hif_cpubiuctrl: syscon@3e2400 {
- compatible = "brcm,bcm7445-hif-cpubiuctrl", "syscon";
- reg = <0x3e2400 0x5b4>;
- };
-
- hif_continuation: syscon@452000 {
- compatible = "brcm,bcm7445-hif-continuation", "syscon";
- reg = <0x452000 0x100>;
- };
- };
-
-Lastly, nodes that allow for support of SMP initialization and reboot are
-required:
-
-smpboot
--------
-Required properties:
-
- - compatible
- The string "brcm,brcmstb-smpboot".
-
- - syscon-cpu
- A phandle / integer array property which lets the BSP know the location
- of certain CPU power-on registers.
-
- The layout of the property is as follows:
- o a phandle to the "hif_cpubiuctrl" syscon node
- o offset to the base CPU power zone register
- o offset to the base CPU reset register
-
- - syscon-cont
- A phandle pointing to the syscon node which describes the CPU boot
- continuation registers.
- o a phandle to the "hif_continuation" syscon node
-
-example:
- smpboot {
- compatible = "brcm,brcmstb-smpboot";
- syscon-cpu = <&hif_cpubiuctrl 0x88 0x178>;
- syscon-cont = <&hif_continuation>;
- };
-
-reboot
--------
-Required properties
-
- - compatible
- The string property "brcm,brcmstb-reboot" for 40nm/28nm chips with
- the new SYS_CTRL interface, or "brcm,bcm7038-reboot" for 65nm
- chips with the old SUN_TOP_CTRL interface.
-
- - syscon
- A phandle / integer array that points to the syscon node which describes
- the general system reset registers.
- o a phandle to "sun_top_ctrl"
- o offset to the "reset source enable" register
- o offset to the "software master reset" register
-
-example:
- reboot {
- compatible = "brcm,brcmstb-reboot";
- syscon = <&sun_top_ctrl 0x304 0x308>;
- };