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authorLinus Torvalds2015-04-22 09:08:39 -0700
committerLinus Torvalds2015-04-22 09:08:39 -0700
commite6c81cce5699ec6be3a7533b5ad7a062ab3357f2 (patch)
tree4592735bbfb17f163217d0bb80877dcc22a869c0 /Documentation
parentd0440c59f52d31aa7f74ba8e35cc22ee96acea84 (diff)
parenta018bb2ff95868ea592212b6735b35836fda268b (diff)
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Olof Johansson: "Our SoC branch usually contains expanded support for new SoCs and other core platform code. In this case, that includes: - support for the new Annapurna Labs "Alpine" platform - a rework greatly simplifying adding new platform support to the MCPM subsystem (Multi-cluster power management) - cpuidle and PM improvements for Exynos3250 - misc updates for Renesas, OMAP, Meson, i.MX. Some of these could have gone in other branches but ended up here for various reasons" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits) ARM: alpine: add support for generic pci ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction ARM: vexpress: migrate DCSCB to the new MCPM backend abstraction ARM: vexpress: DCSCB: tighten CPU validity assertion ARM: vexpress: migrate TC2 to the new MCPM backend abstraction ARM: MCPM: move the algorithmic complexity to the core code ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC ARM: EXYNOS: add AFTR mode support for Exynos3250 ARM: EXYNOS: add code for setting/clearing boot flag ARM: EXYNOS: fix CPU1 hotplug on Exynos3250 ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore ARM: cygnus: fix const declaration bcm_cygnus_dt_compat ARM: DRA7: hwmod: Fix the hwmod class for GPTimer4 ARM: DRA7: hwmod: Add data for GPTimers 13 through 16 ARM: EXYNOS: Remove left over 'extra_save' ARM: EXYNOS: Constify exynos_pm_data array ARM: EXYNOS: use static in suspend.c ARM: EXYNOS: Use platform device name as power domain name ARM: EXYNOS: add support for async-bridge clocks for pm_domains ARM: omap-device: add missed callback for suspend-to-disk ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/arm/Marvell/README5
-rw-r--r--Documentation/devicetree/bindings/arm/al,alpine.txt88
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic.txt4
-rw-r--r--Documentation/devicetree/bindings/arm/armada-39x.txt20
-rw-r--r--Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp52
-rw-r--r--Documentation/devicetree/bindings/arm/cpus.txt1
-rw-r--r--Documentation/devicetree/bindings/arm/geniatech.txt5
-rw-r--r--Documentation/devicetree/bindings/power/fsl,imx-gpc.txt59
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.txt2
9 files changed, 231 insertions, 5 deletions
diff --git a/Documentation/arm/Marvell/README b/Documentation/arm/Marvell/README
index 17453794fca5..18a775d10172 100644
--- a/Documentation/arm/Marvell/README
+++ b/Documentation/arm/Marvell/README
@@ -96,6 +96,11 @@ EBU Armada family
88F6820
88F6828
+ Armada 390/398 Flavors:
+ 88F6920
+ 88F6928
+ Product infos: http://www.marvell.com/embedded-processors/armada-39x/
+
Armada XP Flavors:
MV78230
MV78260
diff --git a/Documentation/devicetree/bindings/arm/al,alpine.txt b/Documentation/devicetree/bindings/arm/al,alpine.txt
new file mode 100644
index 000000000000..f404a4f9b165
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/al,alpine.txt
@@ -0,0 +1,88 @@
+Annapurna Labs Alpine Platform Device Tree Bindings
+---------------------------------------------------------------
+
+Boards in the Alpine family shall have the following properties:
+
+* Required root node properties:
+compatible: must contain "al,alpine"
+
+* Example:
+
+/ {
+ model = "Annapurna Labs Alpine Dev Board";
+ compatible = "al,alpine";
+
+ ...
+}
+
+* CPU node:
+
+The Alpine platform includes cortex-a15 cores.
+enable-method: must be "al,alpine-smp" to allow smp [1]
+
+Example:
+
+cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "al,alpine-smp";
+
+ cpu@0 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <0>;
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <1>;
+ };
+
+ cpu@2 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <2>;
+ };
+
+ cpu@3 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <3>;
+ };
+};
+
+
+* Alpine CPU resume registers
+
+The CPU resume register are used to define required resume address after
+reset.
+
+Properties:
+- compatible : Should contain "al,alpine-cpu-resume".
+- reg : Offset and length of the register set for the device
+
+Example:
+
+cpu_resume {
+ compatible = "al,alpine-cpu-resume";
+ reg = <0xfbff5ed0 0x30>;
+};
+
+* Alpine System-Fabric Service Registers
+
+The System-Fabric Service Registers allow various operation on CPU and
+system fabric, like powering CPUs off.
+
+Properties:
+- compatible : Should contain "al,alpine-sysfabric-service" and "syscon".
+- reg : Offset and length of the register set for the device
+
+Example:
+
+nb_service {
+ compatible = "al,alpine-sysfabric-service", "syscon";
+ reg = <0xfb070000 0x10000>;
+};
+
+[1] arm/cpu-enable-method/al,alpine-smp
diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt
index 8fe815046140..973884a1bacf 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.txt
+++ b/Documentation/devicetree/bindings/arm/amlogic.txt
@@ -8,3 +8,7 @@ Boards with the Amlogic Meson6 SoC shall have the following properties:
Boards with the Amlogic Meson8 SoC shall have the following properties:
Required root node property:
compatible: "amlogic,meson8";
+
+Board compatible values:
+ - "geniatech,atv1200"
+ - "minix,neo-x8"
diff --git a/Documentation/devicetree/bindings/arm/armada-39x.txt b/Documentation/devicetree/bindings/arm/armada-39x.txt
new file mode 100644
index 000000000000..53d4ff9ea8ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/armada-39x.txt
@@ -0,0 +1,20 @@
+Marvell Armada 39x Platforms Device Tree Bindings
+-------------------------------------------------
+
+Boards with a SoC of the Marvell Armada 39x family shall have the
+following property:
+
+Required root node property:
+
+ - compatible: must contain "marvell,armada390"
+
+In addition, boards using the Marvell Armada 398 SoC shall have the
+following property before the previous one:
+
+Required root node property:
+
+compatible: must contain "marvell,armada398"
+
+Example:
+
+compatible = "marvell,a398-db", "marvell,armada398", "marvell,armada390";
diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
new file mode 100644
index 000000000000..c2e0cc5e4cfd
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
@@ -0,0 +1,52 @@
+========================================================
+Secondary CPU enable-method "al,alpine-smp" binding
+========================================================
+
+This document describes the "al,alpine-smp" method for
+enabling secondary CPUs. To apply to all CPUs, a single
+"al,alpine-smp" enable method should be defined in the
+"cpus" node.
+
+Enable method name: "al,alpine-smp"
+Compatible machines: "al,alpine"
+Compatible CPUs: "arm,cortex-a15"
+Related properties: (none)
+
+Note:
+This enable method requires valid nodes compatible with
+"al,alpine-cpu-resume" and "al,alpine-nb-service"[1].
+
+Example:
+
+cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "al,alpine-smp";
+
+ cpu@0 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <0>;
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <1>;
+ };
+
+ cpu@2 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <2>;
+ };
+
+ cpu@3 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <3>;
+ };
+};
+
+--
+[1] arm/al,alpine.txt
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index 8b9e0a95de31..6aa331d11c5e 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -192,6 +192,7 @@ nodes to be present and contain the properties described below.
"brcm,brahma-b15"
"marvell,armada-375-smp"
"marvell,armada-380-smp"
+ "marvell,armada-390-smp"
"marvell,armada-xp-smp"
"qcom,gcc-msm8660"
"qcom,kpss-acc-v1"
diff --git a/Documentation/devicetree/bindings/arm/geniatech.txt b/Documentation/devicetree/bindings/arm/geniatech.txt
deleted file mode 100644
index 74ccba40b73b..000000000000
--- a/Documentation/devicetree/bindings/arm/geniatech.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Geniatech platforms device tree bindings
--------------------------------------------
-
-Geniatech ATV1200
- - compatible = "geniatech,atv1200"
diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt b/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt
new file mode 100644
index 000000000000..65cc0345747d
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt
@@ -0,0 +1,59 @@
+Freescale i.MX General Power Controller
+=======================================
+
+The i.MX6Q General Power Control (GPC) block contains DVFS load tracking
+counters and Power Gating Control (PGC) for the CPU and PU (GPU/VPU) power
+domains.
+
+Required properties:
+- compatible: Should be "fsl,imx6q-gpc" or "fsl,imx6sl-gpc"
+- reg: should be register base and length as documented in the
+ datasheet
+- interrupts: Should contain GPC interrupt request 1
+- pu-supply: Link to the LDO regulator powering the PU power domain
+- clocks: Clock phandles to devices in the PU power domain that need
+ to be enabled during domain power-up for reset propagation.
+- #power-domain-cells: Should be 1, see below:
+
+The gpc node is a power-controller as documented by the generic power domain
+bindings in Documentation/devicetree/bindings/power/power_domain.txt.
+
+Example:
+
+ gpc: gpc@020dc000 {
+ compatible = "fsl,imx6q-gpc";
+ reg = <0x020dc000 0x4000>;
+ interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>,
+ <0 90 IRQ_TYPE_LEVEL_HIGH>;
+ pu-supply = <&reg_pu>;
+ clocks = <&clks IMX6QDL_CLK_GPU3D_CORE>,
+ <&clks IMX6QDL_CLK_GPU3D_SHADER>,
+ <&clks IMX6QDL_CLK_GPU2D_CORE>,
+ <&clks IMX6QDL_CLK_GPU2D_AXI>,
+ <&clks IMX6QDL_CLK_OPENVG_AXI>,
+ <&clks IMX6QDL_CLK_VPU_AXI>;
+ #power-domain-cells = <1>;
+ };
+
+
+Specifying power domain for IP modules
+======================================
+
+IP cores belonging to a power domain should contain a 'power-domains' property
+that is a phandle pointing to the gpc device node and a DOMAIN_INDEX specifying
+the power domain the device belongs to.
+
+Example of a device that is part of the PU power domain:
+
+ vpu: vpu@02040000 {
+ reg = <0x02040000 0x3c000>;
+ /* ... */
+ power-domains = <&gpc 1>;
+ /* ... */
+ };
+
+The following DOMAIN_INDEX values are valid for i.MX6Q:
+ARM_DOMAIN 0
+PU_DOMAIN 1
+The following additional DOMAIN_INDEX value is valid for i.MX6SL:
+DISPLAY_DOMAIN 2
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index aecec35594ee..54c1d5790358 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -11,6 +11,7 @@ adapteva Adapteva, Inc.
adh AD Holdings Plc.
adi Analog Devices, Inc.
aeroflexgaisler Aeroflex Gaisler AB
+al Annapurna Labs
allwinner Allwinner Technology Co., Ltd.
alphascale AlphaScale Integrated Circuits Systems, Inc.
altr Altera Corp.
@@ -118,6 +119,7 @@ merrii Merrii Technology Co., Ltd.
micrel Micrel Inc.
microchip Microchip Technology Inc.
micron Micron Technology Inc.
+minix MINIX Technology Ltd.
mitsubishi Mitsubishi Electric Corporation
mosaixtech Mosaix Technologies, Inc.
moxa Moxa