+++ /dev/null
-* Samsung Exynos Power Domains
-
-Exynos processors include support for multiple power domains which are used
-to gate power to one or more peripherals on the processor.
-
-Required Properties:
-- compatible: should be one of the following.
- * samsung,exynos4210-pd - for exynos4210 type power domain.
-- reg: physical base address of the controller and length of memory mapped
- region.
-- #power-domain-cells: number of cells in power domain specifier;
- must be 0.
-
-Optional Properties:
-- clocks: List of clock handles. The parent clocks of the input clocks to the
- devices in this power domain are set to oscclk before power gating
- and restored back after powering on a domain. This is required for
- all domains which are powered on and off and not required for unused
- domains.
-- clock-names: The following clocks can be specified:
- - oscclk: Oscillator clock.
- - clkN: Input clocks to the devices in this power domain. These clocks
- will be reparented to oscclk before swithing power domain off.
- Their original parent will be brought back after turning on
- the domain. Maximum of 4 clocks (N = 0 to 3) are supported.
- - asbN: Clocks required by asynchronous bridges (ASB) present in
- the power domain. These clock should be enabled during power
- domain on/off operations.
-- power-domains: phandle pointing to the parent power domain, for more details
- see Documentation/devicetree/bindings/power/power_domain.txt
-
-Node of a device using power domains must have a power-domains property
-defined with a phandle to respective power domain.
-
-Example:
-
- lcd0: power-domain-lcd0 {
- compatible = "samsung,exynos4210-pd";
- reg = <0x10023C00 0x10>;
- #power-domain-cells = <0>;
- };
-
- mfc_pd: power-domain@10044060 {
- compatible = "samsung,exynos4210-pd";
- reg = <0x10044060 0x20>;
- clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MOUT_USER_ACLK333>;
- clock-names = "oscclk", "clk0";
- #power-domain-cells = <0>;
- };
-
-See Documentation/devicetree/bindings/power/power_domain.txt for description
-of consumer-side bindings.
+++ /dev/null
-* Samsung's Exynos SoC based boards
-
-Required root node properties:
- - compatible = should be one or more of the following.
- - "samsung,monk" - for Exynos3250-based Samsung Simband board.
- - "samsung,rinato" - for Exynos3250-based Samsung Gear2 board.
- - "samsung,smdkv310" - for Exynos4210-based Samsung SMDKV310 eval board.
- - "samsung,trats" - for Exynos4210-based Tizen Reference board.
- - "samsung,universal_c210" - for Exynos4210-based Samsung board.
- - "samsung,smdk4412", - for Exynos4412-based Samsung SMDK4412 eval board.
- - "samsung,trats2" - for Exynos4412-based Tizen Reference board.
- - "samsung,smdk5250" - for Exynos5250-based Samsung SMDK5250 eval board.
- - "samsung,xyref5260" - for Exynos5260-based Samsung board.
- - "samsung,smdk5410" - for Exynos5410-based Samsung SMDK5410 eval board.
- - "samsung,smdk5420" - for Exynos5420-based Samsung SMDK5420 eval board.
- - "samsung,sd5v1" - for Exynos5440-based Samsung board.
- - "samsung,ssdk5440" - for Exynos5440-based Samsung board.
-
-Optional:
- - firmware node, specifying presence and type of secure firmware:
- - compatible: only "samsung,secure-firmware" is currently supported
- - reg: address of non-secure SYSRAM used for communication with firmware
-
- firmware@0203F000 {
- compatible = "samsung,secure-firmware";
- reg = <0x0203F000 0x1000>;
- };
--- /dev/null
+* Samsung's Exynos SoC based boards
+
+Required root node properties:
+ - compatible = should be one or more of the following.
+ - "samsung,monk" - for Exynos3250-based Samsung Simband board.
+ - "samsung,rinato" - for Exynos3250-based Samsung Gear2 board.
+ - "samsung,smdkv310" - for Exynos4210-based Samsung SMDKV310 eval board.
+ - "samsung,trats" - for Exynos4210-based Tizen Reference board.
+ - "samsung,universal_c210" - for Exynos4210-based Samsung board.
+ - "samsung,smdk4412", - for Exynos4412-based Samsung SMDK4412 eval board.
+ - "samsung,trats2" - for Exynos4412-based Tizen Reference board.
+ - "samsung,smdk5250" - for Exynos5250-based Samsung SMDK5250 eval board.
+ - "samsung,xyref5260" - for Exynos5260-based Samsung board.
+ - "samsung,smdk5410" - for Exynos5410-based Samsung SMDK5410 eval board.
+ - "samsung,smdk5420" - for Exynos5420-based Samsung SMDK5420 eval board.
+ - "samsung,sd5v1" - for Exynos5440-based Samsung board.
+ - "samsung,ssdk5440" - for Exynos5440-based Samsung board.
+
+Optional:
+ - firmware node, specifying presence and type of secure firmware:
+ - compatible: only "samsung,secure-firmware" is currently supported
+ - reg: address of non-secure SYSRAM used for communication with firmware
+
+ firmware@0203F000 {
+ compatible = "samsung,secure-firmware";
+ reg = <0x0203F000 0x1000>;
+ };
- clocks: Required if the System MMU is needed to gate its clock.
- power-domains: Required if the System MMU is needed to gate its power.
Please refer to the following document:
- Documentation/devicetree/bindings/arm/exynos/power_domain.txt
+ Documentation/devicetree/bindings/power/pd-samsung.txt
Examples:
gsc_0: gsc@13e00000 {
--- /dev/null
+* Samsung Exynos Power Domains
+
+Exynos processors include support for multiple power domains which are used
+to gate power to one or more peripherals on the processor.
+
+Required Properties:
+- compatible: should be one of the following.
+ * samsung,exynos4210-pd - for exynos4210 type power domain.
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- #power-domain-cells: number of cells in power domain specifier;
+ must be 0.
+
+Optional Properties:
+- clocks: List of clock handles. The parent clocks of the input clocks to the
+ devices in this power domain are set to oscclk before power gating
+ and restored back after powering on a domain. This is required for
+ all domains which are powered on and off and not required for unused
+ domains.
+- clock-names: The following clocks can be specified:
+ - oscclk: Oscillator clock.
+ - clkN: Input clocks to the devices in this power domain. These clocks
+ will be reparented to oscclk before swithing power domain off.
+ Their original parent will be brought back after turning on
+ the domain. Maximum of 4 clocks (N = 0 to 3) are supported.
+ - asbN: Clocks required by asynchronous bridges (ASB) present in
+ the power domain. These clock should be enabled during power
+ domain on/off operations.
+- power-domains: phandle pointing to the parent power domain, for more details
+ see Documentation/devicetree/bindings/power/power_domain.txt
+
+Node of a device using power domains must have a power-domains property
+defined with a phandle to respective power domain.
+
+Example:
+
+ lcd0: power-domain-lcd0 {
+ compatible = "samsung,exynos4210-pd";
+ reg = <0x10023C00 0x10>;
+ #power-domain-cells = <0>;
+ };
+
+ mfc_pd: power-domain@10044060 {
+ compatible = "samsung,exynos4210-pd";
+ reg = <0x10044060 0x20>;
+ clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MOUT_USER_ACLK333>;
+ clock-names = "oscclk", "clk0";
+ #power-domain-cells = <0>;
+ };
+
+See Documentation/devicetree/bindings/power/power_domain.txt for description
+of consumer-side bindings.
projects / deliverable / linux.git / commitdiff
