summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/arm
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2017-10-30 15:19:09 +0300
committerArnd Bergmann <arnd@arndb.de>2017-10-30 15:19:09 +0300
commit2132910ec924bbbba62de36f19121f3ef79147d4 (patch)
tree3e9e313ae29009c6791fcbe7e9e20f7a6e0cffc3 /Documentation/devicetree/bindings/arm
parentb51c5cb56fa3a51bbf12bda03f3f10fa5796c376 (diff)
parent88b1b18ffeae1d65e22ec24040545a84c3ace352 (diff)
downloadlinux-2132910ec924bbbba62de36f19121f3ef79147d4.tar.xz
Merge tag 'amlogic-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt
Pull "Amlogic 32-bit platforms: DT updates for v4.15" - add SDIO MMC controller - reserved memory fixes - SoC info driver nodes - enable USB host controller * tag 'amlogic-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM: dts: meson: add the SDIO MMC controller ARM: dts: meson8b: add reserved memory zone to fix silent freezes ARM: dts: meson: add SoC information nodes dt-bindings: Amlogic: add documentation for the SoC info register areas ARM: dts: meson: fixing USB support on Meson6, Meson8 and Meson8b ARM: dts: meson: enabling the USB Host controller on Odroid-C1/C1+ board
Diffstat (limited to 'Documentation/devicetree/bindings/arm')
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic/analog-top.txt20
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic/assist.txt17
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic/bootrom.txt17
3 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt b/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt
new file mode 100644
index 000000000000..101dc21014ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt
@@ -0,0 +1,20 @@
+Amlogic Meson8 and Meson8b "analog top" registers:
+--------------------------------------------------
+
+The analog top registers contain information about the so-called
+"metal revision" (which encodes the "minor version") of the SoC.
+
+Required properties:
+- reg: the register range of the analog top registers
+- compatible: depending on the SoC this should be one of:
+ - "amlogic,meson8-analog-top"
+ - "amlogic,meson8b-analog-top"
+ along with "syscon"
+
+
+Example:
+
+ analog_top: analog-top@81a8 {
+ compatible = "amlogic,meson8-analog-top", "syscon";
+ reg = <0x81a8 0x14>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/assist.txt b/Documentation/devicetree/bindings/arm/amlogic/assist.txt
new file mode 100644
index 000000000000..7656812b67b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/amlogic/assist.txt
@@ -0,0 +1,17 @@
+Amlogic Meson6/Meson8/Meson8b assist registers:
+-----------------------------------------------
+
+The assist registers contain basic information about the SoC,
+for example the encoded SoC part number.
+
+Required properties:
+- reg: the register range of the assist registers
+- compatible: should be "amlogic,meson-mx-assist" along with "syscon"
+
+
+Example:
+
+ assist: assist@7c00 {
+ compatible = "amlogic,meson-mx-assist", "syscon";
+ reg = <0x7c00 0x200>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt b/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt
new file mode 100644
index 000000000000..407e27f230ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt
@@ -0,0 +1,17 @@
+Amlogic Meson6/Meson8/Meson8b bootrom:
+--------------------------------------
+
+The bootrom register area can be used to access SoC specific
+information, such as the "misc version".
+
+Required properties:
+- reg: the register range of the bootrom registers
+- compatible: should be "amlogic,meson-mx-bootrom" along with "syscon"
+
+
+Example:
+
+ bootrom: bootrom@d9040000 {
+ compatible = "amlogic,meson-mx-bootrom", "syscon";
+ reg = <0xd9040000 0x10000>;
+ };