From f76452fdfe3fdd930b83d108158d4f0507a32f5f Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 6 Jan 2015 21:01:51 +0100 Subject: [PATCH 01/11] ARM: shmobile: sh73a0 dtsi: Add SoC-specific FSI2 compatible property The FSI2 sound node used the generic compatible property only. Add the SoC-specific one, to make it future proof. Signed-off-by: Geert Uytterhoeven Acked-by: Kuninori Morimoto Signed-off-by: Simon Horman --- arch/arm/boot/dts/sh73a0.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi index d8def5a529da..d4cfb0662643 100644 --- a/arch/arm/boot/dts/sh73a0.dtsi +++ b/arch/arm/boot/dts/sh73a0.dtsi @@ -317,7 +317,7 @@ sh_fsi2: sound@ec230000 { #sound-dai-cells = <1>; - compatible = "renesas,sh_fsi2"; + compatible = "renesas,fsi2-sh73a0", "renesas,sh_fsi2"; reg = <0xec230000 0x400>; interrupts = <0 146 0x4>; status = "disabled"; From 3b8df3903465803f47902fe0510628efdd6ab5a3 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 3 Dec 2014 14:41:41 +0100 Subject: [PATCH 02/11] PM / Domains: Add DT bindings for the R-Mobile System Controller The Renesas R-Mobile System Controller provides a.o. power management support, following the generic PM domain bindings in Documentation/devicetree/bindings/power/power_domain.txt. For now this supports the R-Mobile A1 (r8a7740) only, but it should be sufficiently generic to handle other members of the SH-Mobile/R-Mobile family in the future. Signed-off-by: Geert Uytterhoeven Reviewed-by: Ulf Hansson Signed-off-by: Simon Horman --- .../bindings/power/renesas,sysc-rmobile.txt | 98 +++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt diff --git a/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt b/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt new file mode 100644 index 000000000000..2460476808e9 --- /dev/null +++ b/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt @@ -0,0 +1,98 @@ +DT bindings for the Renesas R-Mobile System Controller + +== System Controller Node == + +The R-Mobile System Controller provides the following functions: + - Boot mode management, + - Reset generation, + - Power management. + +Required properties: +- compatible: Should be "renesas,sysc-", "renesas,sysc-rmobile" as + fallback. + Examples with soctypes are: + - "renesas,sysc-r8a7740" (R-Mobile A1) +- reg: Two address start and address range blocks for the device: + - The first block refers to the normally accessible registers, + - the second block refers to the registers protected by the HPB + semaphore. + +Optional nodes: +- pm-domains: This node contains a hierarchy of PM domain nodes, which should + match the Power Area Hierarchy in the Power Domain Specifications section of + the device's datasheet. + + +== PM Domain Nodes == + +Each of the PM domain nodes represents a PM domain, as documented by the +generic PM domain bindings in +Documentation/devicetree/bindings/power/power_domain.txt. + +The nodes should be named by the real power area names, and thus their names +should be unique. + +Required properties: + - #power-domain-cells: Must be 0. + +Optional properties: +- reg: If the PM domain is not always-on, this property must contain the bit + index number for the corresponding power area in the various Power + Control and Status Registers. The parent's node must contain the + following two properties: + - #address-cells: Must be 1, + - #size-cells: Must be 0. + If the PM domain is always-on, this property must be omitted. + + +Example: + +This shows a subset of the r8a7740 PM domain hierarchy, containing the +C5 "always-on" domain, 2 of its subdomains (A4S and A4SU), and the A3SP domain, +which is a subdomain of A4S. + + sysc: system-controller@e6180000 { + compatible = "renesas,sysc-r8a7740", "renesas,sysc-rmobile"; + reg = <0xe6180000 0x8000>, <0xe6188000 0x8000>; + + pm-domains { + pd_c5: c5 { + #address-cells = <1>; + #size-cells = <0>; + #power-domain-cells = <0>; + + pd_a4s: a4s@10 { + reg = <10>; + #address-cells = <1>; + #size-cells = <0>; + #power-domain-cells = <0>; + + pd_a3sp: a3sp@11 { + reg = <11>; + #power-domain-cells = <0>; + }; + }; + + pd_a4su: a4su@20 { + reg = <20>; + #power-domain-cells = <0>; + }; + }; + }; + }; + + +== PM Domain Consumers == + +Hardware blocks belonging to a PM domain should contain a "power-domains" +property that is a phandle pointing to the corresponding PM domain node. + +Example: + + tpu: pwm@e6600000 { + compatible = "renesas,tpu-r8a7740", "renesas,tpu"; + reg = <0xe6600000 0x100>; + clocks = <&mstp3_clks R8A7740_CLK_TPU0>; + power-domains = <&pd_a3sp>; + #pwm-cells = <3>; + }; From aba07789d811b6cf645cffc83ac821393027819a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 3 Dec 2014 14:41:46 +0100 Subject: [PATCH 03/11] ARM: shmobile: r8a7740 dtsi: Add PM domain support Add a device node for the System Controller, with subnodes that represent the hardware power area hierarchy. Hook up all devices to their respective PM domains. Add a minimal device node for the Coresight-ETM hardware block, and hook it up to the D4 PM domain, so the R-Mobile System Controller driver can keep the domain powered, until the new Coresight code handles runtime PM. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7740.dtsi | 99 ++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi index 60ca62254536..52f2cf4b84d3 100644 --- a/arch/arm/boot/dts/r8a7740.dtsi +++ b/arch/arm/boot/dts/r8a7740.dtsi @@ -25,6 +25,7 @@ device_type = "cpu"; reg = <0x0>; clock-frequency = <800000000>; + power-domains = <&pd_a3sm>; }; }; @@ -41,12 +42,18 @@ interrupts = <0 83 IRQ_TYPE_LEVEL_HIGH>; }; + ptm { + compatible = "arm,coresight-etm3x"; + power-domains = <&pd_d4>; + }; + cmt1: timer@e6138000 { compatible = "renesas,cmt-48-r8a7740", "renesas,cmt-48"; reg = <0xe6138000 0x170>; interrupts = <0 58 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7740_CLK_CMT1>; clock-names = "fck"; + power-domains = <&pd_c5>; renesas,channels-mask = <0x3f>; @@ -72,6 +79,7 @@ 0 149 IRQ_TYPE_LEVEL_HIGH 0 149 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_INTCA>; + power-domains = <&pd_a4s>; }; /* irqpin1: IRQ8 - IRQ15 */ @@ -93,6 +101,7 @@ 0 149 IRQ_TYPE_LEVEL_HIGH 0 149 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_INTCA>; + power-domains = <&pd_a4s>; }; /* irqpin2: IRQ16 - IRQ23 */ @@ -114,6 +123,7 @@ 0 149 IRQ_TYPE_LEVEL_HIGH 0 149 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_INTCA>; + power-domains = <&pd_a4s>; }; /* irqpin3: IRQ24 - IRQ31 */ @@ -135,6 +145,7 @@ 0 149 IRQ_TYPE_LEVEL_HIGH 0 149 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_INTCA>; + power-domains = <&pd_a4s>; }; ether: ethernet@e9a00000 { @@ -143,6 +154,7 @@ <0xe9a01800 0x800>; interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7740_CLK_GETHER>; + power-domains = <&pd_a4s>; phy-mode = "mii"; #address-cells = <1>; #size-cells = <0>; @@ -159,6 +171,7 @@ 0 203 IRQ_TYPE_LEVEL_HIGH 0 204 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp1_clks R8A7740_CLK_IIC0>; + power-domains = <&pd_a4r>; status = "disabled"; }; @@ -172,6 +185,7 @@ 0 72 IRQ_TYPE_LEVEL_HIGH 0 73 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7740_CLK_IIC1>; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -181,6 +195,7 @@ interrupts = <0 100 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA0>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -190,6 +205,7 @@ interrupts = <0 101 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA1>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -199,6 +215,7 @@ interrupts = <0 102 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA2>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -208,6 +225,7 @@ interrupts = <0 103 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA3>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -217,6 +235,7 @@ interrupts = <0 104 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA4>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -226,6 +245,7 @@ interrupts = <0 105 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA5>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -235,6 +255,7 @@ interrupts = <0 106 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA6>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -244,6 +265,7 @@ interrupts = <0 107 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFA7>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -253,6 +275,7 @@ interrupts = <0 108 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7740_CLK_SCIFB>; clock-names = "sci_ick"; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -271,12 +294,14 @@ <&irqpin2 4 0>, <&irqpin2 5 0>, <&irqpin2 6 0>, <&irqpin2 7 0>, <&irqpin3 0 0>, <&irqpin3 1 0>, <&irqpin3 2 0>, <&irqpin3 3 0>, <&irqpin3 4 0>, <&irqpin3 5 0>, <&irqpin3 6 0>, <&irqpin3 7 0>; + power-domains = <&pd_c5>; }; tpu: pwm@e6600000 { compatible = "renesas,tpu-r8a7740", "renesas,tpu"; reg = <0xe6600000 0x100>; clocks = <&mstp3_clks R8A7740_CLK_TPU0>; + power-domains = <&pd_a3sp>; status = "disabled"; #pwm-cells = <3>; }; @@ -287,6 +312,7 @@ interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH 0 57 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7740_CLK_MMC>; + power-domains = <&pd_a3sp>; status = "disabled"; }; @@ -297,6 +323,7 @@ 0 118 IRQ_TYPE_LEVEL_HIGH 0 119 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7740_CLK_SDHI0>; + power-domains = <&pd_a3sp>; cap-sd-highspeed; cap-sdio-irq; status = "disabled"; @@ -309,6 +336,7 @@ 0 122 IRQ_TYPE_LEVEL_HIGH 0 123 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7740_CLK_SDHI1>; + power-domains = <&pd_a3sp>; cap-sd-highspeed; cap-sdio-irq; status = "disabled"; @@ -321,6 +349,7 @@ 0 126 IRQ_TYPE_LEVEL_HIGH 0 127 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp4_clks R8A7740_CLK_SDHI2>; + power-domains = <&pd_a3sp>; cap-sd-highspeed; cap-sdio-irq; status = "disabled"; @@ -332,6 +361,7 @@ reg = <0xfe1f0000 0x400>; interrupts = <0 9 0x4>; clocks = <&mstp3_clks R8A7740_CLK_FSI>; + power-domains = <&pd_a4mp>; status = "disabled"; }; @@ -343,6 +373,7 @@ <0 200 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp1_clks R8A7740_CLK_TMU0>; clock-names = "fck"; + power-domains = <&pd_a4r>; #renesas,channels = <3>; @@ -357,6 +388,7 @@ <0 172 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp1_clks R8A7740_CLK_TMU1>; clock-names = "fck"; + power-domains = <&pd_a4r>; #renesas,channels = <3>; @@ -543,4 +575,71 @@ "usbhost", "sdhi2", "usbfunc", "usphy"; }; }; + + sysc: system-controller@e6180000 { + compatible = "renesas,sysc-r8a7740", "renesas,sysc-rmobile"; + reg = <0xe6180000 0x8000>, <0xe6188000 0x8000>; + + pm-domains { + pd_c5: c5 { + #address-cells = <1>; + #size-cells = <0>; + #power-domain-cells = <0>; + + pd_a4lc: a4lc@1 { + reg = <1>; + #power-domain-cells = <0>; + }; + + pd_a4mp: a4mp@2 { + reg = <2>; + #power-domain-cells = <0>; + }; + + pd_d4: d4@3 { + reg = <3>; + #power-domain-cells = <0>; + }; + + pd_a4r: a4r@5 { + reg = <5>; + #address-cells = <1>; + #size-cells = <0>; + #power-domain-cells = <0>; + + pd_a3rv: a3rv@6 { + reg = <6>; + #power-domain-cells = <0>; + }; + }; + + pd_a4s: a4s@10 { + reg = <10>; + #address-cells = <1>; + #size-cells = <0>; + #power-domain-cells = <0>; + + pd_a3sp: a3sp@11 { + reg = <11>; + #power-domain-cells = <0>; + }; + + pd_a3sm: a3sm@12 { + reg = <12>; + #power-domain-cells = <0>; + }; + + pd_a3sg: a3sg@13 { + reg = <13>; + #power-domain-cells = <0>; + }; + }; + + pd_a4su: a4su@20 { + reg = <20>; + #power-domain-cells = <0>; + }; + }; + }; + }; }; From 2fd4e094bbe6de0dc98355c4c387c433f6de525c Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 13 Jan 2015 01:31:14 +0300 Subject: [PATCH 04/11] ARM: shmobile: r8a7791: fix MSTP8 input clocks I made a mistake when rebasing Andrey Gusakov's patch adding MLB+ clock to the R8A7791 device tree, inserting <&hp_clk> into the "clocks" property of the MSTP8 node at a wrong position, so that the input clocks for MLB+ and IPMMU-SGX got swapped... Fixes: 7408d3061d2f ("ARM: shmobile: r8a7791: add MLB+ clock") Signed-off-by: Sergei Shtylyov Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7791.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi index 28102265cc71..946cd3a4836e 100644 --- a/arch/arm/boot/dts/r8a7791.dtsi +++ b/arch/arm/boot/dts/r8a7791.dtsi @@ -1154,7 +1154,7 @@ mstp8_clks: mstp8_clks@e6150990 { compatible = "renesas,r8a7791-mstp-clocks", "renesas,cpg-mstp-clocks"; reg = <0 0xe6150990 0 4>, <0 0xe61509a0 0 4>; - clocks = <&hp_clk>, <&zg_clk>, <&zg_clk>, <&zg_clk>, + clocks = <&zg_clk>, <&hp_clk>, <&zg_clk>, <&zg_clk>, <&zg_clk>, <&p_clk>, <&zs_clk>, <&zs_clk>; #clock-cells = <1>; clock-indices = < From d86a31101f7952870d50df96abb786bb983efa69 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 8 Jan 2015 01:55:15 +0000 Subject: [PATCH 05/11] ARM: shmobile: r8a7790: add SRC interrupt number on DTSI Signed-off-by: Kuninori Morimoto Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7790.dtsi | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi index af30c2470f85..637e4ee10d6a 100644 --- a/arch/arm/boot/dts/r8a7790.dtsi +++ b/arch/arm/boot/dts/r8a7790.dtsi @@ -1435,16 +1435,16 @@ }; rcar_sound,src { - src0: src@0 { }; - src1: src@1 { }; - src2: src@2 { }; - src3: src@3 { }; - src4: src@4 { }; - src5: src@5 { }; - src6: src@6 { }; - src7: src@7 { }; - src8: src@8 { }; - src9: src@9 { }; + src0: src@0 { interrupts = <0 352 IRQ_TYPE_LEVEL_HIGH>; }; + src1: src@1 { interrupts = <0 353 IRQ_TYPE_LEVEL_HIGH>; }; + src2: src@2 { interrupts = <0 354 IRQ_TYPE_LEVEL_HIGH>; }; + src3: src@3 { interrupts = <0 355 IRQ_TYPE_LEVEL_HIGH>; }; + src4: src@4 { interrupts = <0 356 IRQ_TYPE_LEVEL_HIGH>; }; + src5: src@5 { interrupts = <0 357 IRQ_TYPE_LEVEL_HIGH>; }; + src6: src@6 { interrupts = <0 358 IRQ_TYPE_LEVEL_HIGH>; }; + src7: src@7 { interrupts = <0 359 IRQ_TYPE_LEVEL_HIGH>; }; + src8: src@8 { interrupts = <0 360 IRQ_TYPE_LEVEL_HIGH>; }; + src9: src@9 { interrupts = <0 361 IRQ_TYPE_LEVEL_HIGH>; }; }; rcar_sound,ssi { From 8856102dd30897e608331521f4286163700c4d59 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 8 Jan 2015 01:55:27 +0000 Subject: [PATCH 06/11] ARM: shmobile: r8a7791: add SRC interrupt number on DTSI Signed-off-by: Kuninori Morimoto Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7791.dtsi | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi index 946cd3a4836e..e3a60a22d34a 100644 --- a/arch/arm/boot/dts/r8a7791.dtsi +++ b/arch/arm/boot/dts/r8a7791.dtsi @@ -1420,16 +1420,16 @@ }; rcar_sound,src { - src0: src@0 { }; - src1: src@1 { }; - src2: src@2 { }; - src3: src@3 { }; - src4: src@4 { }; - src5: src@5 { }; - src6: src@6 { }; - src7: src@7 { }; - src8: src@8 { }; - src9: src@9 { }; + src0: src@0 { interrupts = <0 352 IRQ_TYPE_LEVEL_HIGH>; }; + src1: src@1 { interrupts = <0 353 IRQ_TYPE_LEVEL_HIGH>; }; + src2: src@2 { interrupts = <0 354 IRQ_TYPE_LEVEL_HIGH>; }; + src3: src@3 { interrupts = <0 355 IRQ_TYPE_LEVEL_HIGH>; }; + src4: src@4 { interrupts = <0 356 IRQ_TYPE_LEVEL_HIGH>; }; + src5: src@5 { interrupts = <0 357 IRQ_TYPE_LEVEL_HIGH>; }; + src6: src@6 { interrupts = <0 358 IRQ_TYPE_LEVEL_HIGH>; }; + src7: src@7 { interrupts = <0 359 IRQ_TYPE_LEVEL_HIGH>; }; + src8: src@8 { interrupts = <0 360 IRQ_TYPE_LEVEL_HIGH>; }; + src9: src@9 { interrupts = <0 361 IRQ_TYPE_LEVEL_HIGH>; }; }; rcar_sound,ssi { From 753b9c9cfdfeae57f956c55e1ccdfcf2d90e6196 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 14 Jan 2015 12:12:59 +0100 Subject: [PATCH 07/11] ARM: shmobile: Add DT bindings for Renesas memory controllers Add DT bindings for Renesas R-Mobile and SH-Mobile memory controllers. Currently memory controller device nodes are used only to reference PM domains, and prevent these PM domains from being powered down, which would crash the system. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- .../renesas-memory-controllers.txt | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/renesas-memory-controllers.txt diff --git a/Documentation/devicetree/bindings/memory-controllers/renesas-memory-controllers.txt b/Documentation/devicetree/bindings/memory-controllers/renesas-memory-controllers.txt new file mode 100644 index 000000000000..c64b7925cd09 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/renesas-memory-controllers.txt @@ -0,0 +1,44 @@ +DT bindings for Renesas R-Mobile and SH-Mobile memory controllers +================================================================= + +Renesas R-Mobile and SH-Mobile SoCs contain one or more memory controllers. +These memory controllers differ from one SoC variant to another, and are called +by different names ("DDR Bus Controller (DBSC)", "DDR3 Bus State Controller +(DBSC3)", "SDRAM Bus State Controller (SBSC)"). + +Currently memory controller device nodes are used only to reference PM +domains, and prevent these PM domains from being powered down, which would +crash the system. + +As there exist no actual drivers for these controllers yet, these bindings +should be considered EXPERIMENTAL for now. + +Required properties: + - compatible: Must be one of the following SoC-specific values: + - "renesas,dbsc-r8a73a4" (R-Mobile APE6) + - "renesas,dbsc3-r8a7740" (R-Mobile A1) + - "renesas,sbsc-sh73a0" (SH-Mobile AG5) + - reg: Must contain the base address and length of the memory controller's + registers. + +Optional properties: + - interrupts: Must contain a list of interrupt specifiers for memory + controller interrupts, if available. + - interrupts-names: Must contain a list of interrupt names corresponding to + the interrupts in the interrupts property, if available. + Valid interrupt names are: + - "sec" (secure interrupt) + - "temp" (normal (temperature) interrupt) + - power-domains: Must contain a reference to the PM domain that the memory + controller belongs to, if available. + +Example: + + sbsc1: memory-controller@fe400000 { + compatible = "renesas,sbsc-sh73a0"; + reg = <0xfe400000 0x400>; + interrupts = <0 35 IRQ_TYPE_LEVEL_HIGH>, + <0 36 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "sec", "temp"; + power-domains = <&pd_a4bc0>; + }; From 35dd549cb300e346e2f2ec1f12dd9cd245b3276b Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 14 Jan 2015 12:13:00 +0100 Subject: [PATCH 08/11] ARM: shmobile: r8a73a4 dtsi: Add memory-controller nodes Add device nodes for the two DDR Bus State Controllers (DBSC). The DBSCs are located in the A3BC PM domain, which must not be powered down, else the system will crash. A reference to the A3BC PM domain will be added later. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a73a4.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi index 5ac57babc3b9..38136d9f6d95 100644 --- a/arch/arm/boot/dts/r8a73a4.dtsi +++ b/arch/arm/boot/dts/r8a73a4.dtsi @@ -38,6 +38,16 @@ <1 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>; }; + dbsc1: memory-controller@e6790000 { + compatible = "renesas,dbsc-r8a73a4"; + reg = <0 0xe6790000 0 0x10000>; + }; + + dbsc2: memory-controller@e67a0000 { + compatible = "renesas,dbsc-r8a73a4"; + reg = <0 0xe67a0000 0 0x10000>; + }; + dmac: dma-multiplexer { compatible = "renesas,shdma-mux"; #dma-cells = <1>; From f4c6d004eac803cf90452c94ec5f3210c2d44c01 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 14 Jan 2015 12:13:01 +0100 Subject: [PATCH 09/11] ARM: shmobile: r8a7740 dtsi: Add memory-controller node Add a device node for the DDR3 Bus State Controller (DBSC3). The DBSC3 is located in the A4S PM domain, which must not be powered down, else the system will crash. This has no visible effect for now, as A4S was never turned off anyway because its child PM domain A3SM contains the CPU core. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7740.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi index 52f2cf4b84d3..8a092605d641 100644 --- a/arch/arm/boot/dts/r8a7740.dtsi +++ b/arch/arm/boot/dts/r8a7740.dtsi @@ -37,6 +37,12 @@ <0xc2000000 0x1000>; }; + dbsc3: memory-controller@fe400000 { + compatible = "renesas,dbsc3-r8a7740"; + reg = <0xfe400000 0x400>; + power-domains = <&pd_a4s>; + }; + pmu { compatible = "arm,cortex-a9-pmu"; interrupts = <0 83 IRQ_TYPE_LEVEL_HIGH>; From 29828c87560dbdb567e759e4e6bb4ad0febfcf21 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 14 Jan 2015 12:13:02 +0100 Subject: [PATCH 10/11] ARM: shmobile: sh73a0 dtsi: Add memory-controller nodes Add device nodes for the two SDRAM Bus State Controllers. The SBSCs are located in the A4BC0 resp. A4BC1 PM domains, which must not be powered down, else the system will crash. References to the A4BC0 and A4BC1 PM domains will be added later. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm/boot/dts/sh73a0.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi index d4cfb0662643..37c8a761aeab 100644 --- a/arch/arm/boot/dts/sh73a0.dtsi +++ b/arch/arm/boot/dts/sh73a0.dtsi @@ -42,6 +42,22 @@ <0xf0000100 0x100>; }; + sbsc2: memory-controller@fb400000 { + compatible = "renesas,sbsc-sh73a0"; + reg = <0xfb400000 0x400>; + interrupts = <0 37 IRQ_TYPE_LEVEL_HIGH>, + <0 38 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "sec", "temp"; + }; + + sbsc1: memory-controller@fe400000 { + compatible = "renesas,sbsc-sh73a0"; + reg = <0xfe400000 0x400>; + interrupts = <0 35 IRQ_TYPE_LEVEL_HIGH>, + <0 36 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "sec", "temp"; + }; + pmu { compatible = "arm,cortex-a9-pmu"; interrupts = <0 55 IRQ_TYPE_LEVEL_HIGH>, From fbaa5e694a1240c5f6b829b1e17652e4e228ee12 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 14 Jan 2015 13:11:19 +0100 Subject: [PATCH 11/11] PM / Domains: R-Mobile SYSC: Document SH-Mobile AG5 (sh73a0) binding SH-Mobile AG5 (sh73a0) can be handled by the existing bindings. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt b/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt index 2460476808e9..cc3b1f0a9b1a 100644 --- a/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt +++ b/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt @@ -12,6 +12,7 @@ Required properties: fallback. Examples with soctypes are: - "renesas,sysc-r8a7740" (R-Mobile A1) + - "renesas,sysc-sh73a0" (SH-Mobile AG5) - reg: Two address start and address range blocks for the device: - The first block refers to the normally accessible registers, - the second block refers to the registers protected by the HPB