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authorOlof Johansson <olof@lixom.net>2016-07-06 22:11:20 -0700
committerOlof Johansson <olof@lixom.net>2016-07-06 22:11:20 -0700
commit5fd70b1b17d47519b908ae6a4960dfdcf0a069ca (patch)
treede7a2cd101c3dfc29eea421c20e62ba639a4686d /Documentation
parent46e6b3aa65c86bf204deb5ff590e186639009427 (diff)
parent8fd763c75c3ab8e72e5d7f0d4c53531e6ff76197 (diff)
Merge tag 'renesas-dt2-for-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Second Round of Renesas ARM Based SoC DT Updates for v4.8 * Use APMU on R-Car Gen2 and provide SMP for r8a7793 SoC * Update console parameters to uniformly use chosen/stdout-path, serial0, not provide kernel unnecessary command line parameters * Add DU pins to silk board * Add support for blanche/r8a7792 * Name pfc subnodes after device name * tag 'renesas-dt2-for-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (41 commits) ARM: dts: r8a7792: add SMP support ARM: dts: r8a7793: Add APMU node and second CPU core ARM: dts: r8a7791: Add APMU node ARM: dts: r8a7790: Add APMU nodes devicetree: bindings: Renesas APMU and SMP Enable method ARM: dts: kzm9g: Update console parameters ARM: dts: kzm9d: Update console parameters ARM: dts: marzen: Add serial port config to chosen/stdout-path ARM: dts: genmai: Update console parameters ARM: dts: armadillo800eva: Update console parameters ARM: dts: r8a7792: add JPU support ARM: dts: r8a7792: add JPU clocks ARM: dts: silk: add DU pins ARM: dts: blanche: add Ethernet support ARM: dts: blanche: initial device tree ARM: dts: blanche: document Blanche board ARM: dts: r8a7792: add IRQC support ARM: dts: r8a7792: add [H]SCIF support ARM: dts: r8a7792: add SYS-DMAC support ARM: dts: r8a7792: initial SoC device tree ... Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/arm/cpus.txt1
-rw-r--r--Documentation/devicetree/bindings/arm/shmobile.txt2
-rw-r--r--Documentation/devicetree/bindings/power/renesas,apmu.txt31
3 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index ff76088f3b84..e6782d50cbcd 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -206,6 +206,7 @@ nodes to be present and contain the properties described below.
"qcom,gcc-msm8660"
"qcom,kpss-acc-v1"
"qcom,kpss-acc-v2"
+ "renesas,apmu"
"rockchip,rk3036-smp"
"rockchip,rk3066-smp"
"ste,dbx500-smp"
diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt
index 9cf67e48f222..6adb9d549fce 100644
--- a/Documentation/devicetree/bindings/arm/shmobile.txt
+++ b/Documentation/devicetree/bindings/arm/shmobile.txt
@@ -39,6 +39,8 @@ Boards:
compatible = "renesas,ape6evm", "renesas,r8a73a4"
- Atmark Techno Armadillo-800 EVA
compatible = "renesas,armadillo800eva"
+ - Blanche (RTP0RC7792SEB00010S)
+ compatible = "renesas,blanche", "renesas,r8a7792"
- BOCK-W
compatible = "renesas,bockw", "renesas,r8a7778"
- Genmai (RTK772100BC00000BR)
diff --git a/Documentation/devicetree/bindings/power/renesas,apmu.txt b/Documentation/devicetree/bindings/power/renesas,apmu.txt
new file mode 100644
index 000000000000..84404c9edff7
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/renesas,apmu.txt
@@ -0,0 +1,31 @@
+DT bindings for the Renesas Advanced Power Management Unit
+
+Renesas R-Car line of SoCs utilize one or more APMU hardware units
+for CPU core power domain control including SMP boot and CPU Hotplug.
+
+Required properties:
+
+- compatible: Should be "renesas,<soctype>-apmu", "renesas,apmu" as fallback.
+ Examples with soctypes are:
+ - "renesas,r8a7790-apmu" (R-Car H2)
+ - "renesas,r8a7791-apmu" (R-Car M2-W)
+ - "renesas,r8a7792-apmu" (R-Car V2H)
+ - "renesas,r8a7793-apmu" (R-Car M2-N)
+ - "renesas,r8a7794-apmu" (R-Car E2)
+
+- reg: Base address and length of the I/O registers used by the APMU.
+
+- cpus: This node contains a list of CPU cores, which should match the order
+ of CPU cores used by the WUPCR and PSTR registers in the Advanced Power
+ Management Unit section of the device's datasheet.
+
+
+Example:
+
+This shows the r8a7791 APMU that can control CPU0 and CPU1.
+
+ apmu@e6152000 {
+ compatible = "renesas,r8a7791-apmu", "renesas,apmu";
+ reg = <0 0xe6152000 0 0x188>;
+ cpus = <&cpu0 &cpu1>;
+ };