diff options
Diffstat (limited to 'Documentation/devicetree/bindings/arm')
6 files changed, 172 insertions, 14 deletions
diff --git a/Documentation/devicetree/bindings/arm/amlogic,scpi.txt b/Documentation/devicetree/bindings/arm/amlogic,scpi.txt new file mode 100644 index 000000000000..7b9a861e9306 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic,scpi.txt @@ -0,0 +1,20 @@ +System Control and Power Interface (SCPI) Message Protocol +(in addition to the standard binding in [0]) +---------------------------------------------------------- +Required properties + +- compatible : should be "amlogic,meson-gxbb-scpi" + +AMLOGIC SRAM and Shared Memory for SCPI +------------------------------------ + +Required properties: +- compatible : should be "amlogic,meson-gxbb-sram" + +Each sub-node represents the reserved area for SCPI. + +Required sub-node properties: +- compatible : should be "amlogic,meson-gxbb-scp-shmem" for SRAM based shared + memory on Amlogic GXBB SoC. + +[0] Documentation/devicetree/bindings/arm/arm,scpi.txt diff --git a/Documentation/devicetree/bindings/arm/arm,scpi.txt b/Documentation/devicetree/bindings/arm/arm,scpi.txt index faa4b44572e3..401831973638 100644 --- a/Documentation/devicetree/bindings/arm/arm,scpi.txt +++ b/Documentation/devicetree/bindings/arm/arm,scpi.txt @@ -7,7 +7,10 @@ by Linux to initiate various system control and power operations. Required properties: -- compatible : should be "arm,scpi" +- compatible : should be + * "arm,scpi" : For implementations complying to SCPI v1.0 or above + * "arm,scpi-pre-1.0" : For implementations complying to all + unversioned releases prior to SCPI v1.0 - mboxes: List of phandle and mailbox channel specifiers All the channels reserved by remote SCP firmware for use by SCPI message protocol should be specified in any order @@ -59,18 +62,14 @@ SRAM and Shared Memory for SCPI A small area of SRAM is reserved for SCPI communication between application processors and SCP. -Required properties: -- compatible : should be "arm,juno-sram-ns" for Non-secure SRAM on Juno - -The rest of the properties should follow the generic mmio-sram description -found in ../../sram/sram.txt +The properties should follow the generic mmio-sram description found in [3] Each sub-node represents the reserved area for SCPI. Required sub-node properties: - reg : The base offset and size of the reserved area with the SRAM -- compatible : should be "arm,juno-scp-shmem" for Non-secure SRAM based - shared memory on Juno platforms +- compatible : should be "arm,scp-shmem" for Non-secure SRAM based + shared memory Sensor bindings for the sensors based on SCPI Message Protocol -------------------------------------------------------------- @@ -81,11 +80,9 @@ Required properties: - #thermal-sensor-cells: should be set to 1. This property follows the thermal device tree bindings[2]. - Valid cell values are raw identifiers (Sensor - ID) as used by the firmware. Refer to - platform documentation for your - implementation for the IDs to use. For Juno - R0 and Juno R1 refer to [3]. + Valid cell values are raw identifiers (Sensor ID) + as used by the firmware. Refer to platform details + for your implementation for the IDs to use. Power domain bindings for the power domains based on SCPI Message Protocol ------------------------------------------------------------ @@ -112,7 +109,7 @@ Required properties: [0] http://infocenter.arm.com/help/topic/com.arm.doc.dui0922b/index.html [1] Documentation/devicetree/bindings/clock/clock-bindings.txt [2] Documentation/devicetree/bindings/thermal/thermal.txt -[3] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/apas03s22.html +[3] Documentation/devicetree/bindings/sram/sram.txt [4] Documentation/devicetree/bindings/power/power_domain.txt Example: diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt index e1f5ad855f14..29737b9b616e 100644 --- a/Documentation/devicetree/bindings/arm/atmel-at91.txt +++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt @@ -225,3 +225,19 @@ required properties: compatible = "atmel,sama5d3-sfr", "syscon"; reg = <0xf0038000 0x60>; }; + +Security Module (SECUMOD) + +The Security Module macrocell provides all necessary secure functions to avoid +voltage, temperature, frequency and mechanical attacks on the chip. It also +embeds secure memories that can be scrambled + +required properties: +- compatible: Should be "atmel,<chip>-secumod", "syscon". + <chip> can be "sama5d2". +- reg: Should contain registers location and length + + secumod@fc040000 { + compatible = "atmel,sama5d2-secumod", "syscon"; + reg = <0xfc040000 0x100>; + }; diff --git a/Documentation/devicetree/bindings/arm/juno,scpi.txt b/Documentation/devicetree/bindings/arm/juno,scpi.txt new file mode 100644 index 000000000000..2ace8696bbee --- /dev/null +++ b/Documentation/devicetree/bindings/arm/juno,scpi.txt @@ -0,0 +1,26 @@ +System Control and Power Interface (SCPI) Message Protocol +(in addition to the standard binding in [0]) + +Juno SRAM and Shared Memory for SCPI +------------------------------------ + +Required properties: +- compatible : should be "arm,juno-sram-ns" for Non-secure SRAM + +Each sub-node represents the reserved area for SCPI. + +Required sub-node properties: +- reg : The base offset and size of the reserved area with the SRAM +- compatible : should be "arm,juno-scp-shmem" for Non-secure SRAM based + shared memory on Juno platforms + +Sensor bindings for the sensors based on SCPI Message Protocol +-------------------------------------------------------------- +Required properties: +- compatible : should be "arm,scpi-sensors". +- #thermal-sensor-cells: should be set to 1. + For Juno R0 and Juno R1 refer to [1] for the + sensor identifiers + +[0] Documentation/devicetree/bindings/arm/arm,scpi.txt +[1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/apas03s22.html diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt b/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt new file mode 100644 index 000000000000..31f5f9a104cc --- /dev/null +++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt @@ -0,0 +1,81 @@ +Texas Instruments System Control Interface (TI-SCI) Message Protocol +-------------------------------------------------------------------- + +Texas Instrument's processors including those belonging to Keystone generation +of processors have separate hardware entity which is now responsible for the +management of the System on Chip (SoC) system. These include various system +level functions as well. + +An example of such an SoC is K2G, which contains the system control hardware +block called Power Management Micro Controller (PMMC). This hardware block is +initialized early into boot process and provides services to Operating Systems +on multiple processors including ones running Linux. + +See http://processors.wiki.ti.com/index.php/TISCI for protocol definition. + +TI-SCI controller Device Node: +============================= + +The TI-SCI node describes the Texas Instrument's System Controller entity node. +This parent node may optionally have additional children nodes which describe +specific functionality such as clocks, power domain, reset or additional +functionality as may be required for the SoC. This hierarchy also describes the +relationship between the TI-SCI parent node to the child node. + +Required properties: +------------------- +- compatible: should be "ti,k2g-sci" +- mbox-names: + "rx" - Mailbox corresponding to receive path + "tx" - Mailbox corresponding to transmit path + +- mboxes: Mailboxes corresponding to the mbox-names. Each value of the mboxes + property should contain a phandle to the mailbox controller device + node and an args specifier that will be the phandle to the intended + sub-mailbox child node to be used for communication. + +See Documentation/devicetree/bindings/mailbox/mailbox.txt for more details +about the generic mailbox controller and client driver bindings. Also see +Documentation/devicetree/bindings/mailbox/ti,message-manager.txt for typical +controller that is used to communicate with this System controllers. + +Optional Properties: +------------------- +- reg-names: + debug_messages - Map the Debug message region +- reg: register space corresponding to the debug_messages +- ti,system-reboot-controller: If system reboot can be triggered by SoC reboot + +Example (K2G): +------------- + pmmc: pmmc { + compatible = "ti,k2g-sci"; + mbox-names = "rx", "tx"; + mboxes= <&msgmgr &msgmgr_proxy_pmmc_rx>, + <&msgmgr &msgmgr_proxy_pmmc_tx>; + reg-names = "debug_messages"; + reg = <0x02921800 0x800>; + }; + + +TI-SCI Client Device Node: +========================= + +Client nodes are maintained as children of the relevant TI-SCI device node. + +Example (K2G): +------------- + pmmc: pmmc { + compatible = "ti,k2g-sci"; + ... + + my_clk_node: clk_node { + ... + ... + }; + + my_pd_node: pd_node { + ... + ... + }; + }; diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt index 5d8229d74a5f..253bf9b86690 100644 --- a/Documentation/devicetree/bindings/arm/shmobile.txt +++ b/Documentation/devicetree/bindings/arm/shmobile.txt @@ -85,3 +85,21 @@ Boards: compatible = "renesas,sk-rzg1m", "renesas,r8a7743" - Wheat compatible = "renesas,wheat", "renesas,r8a7792" + + +Most Renesas ARM SoCs have a Product Register that allows to retrieve SoC +product and revision information. If present, a device node for this register +should be added. + +Required properties: + - compatible: Must be "renesas,prr". + - reg: Base address and length of the register block. + + +Examples +-------- + + prr: chipid@ff000044 { + compatible = "renesas,prr"; + reg = <0 0xff000044 0 4>; + }; |