ARM: shmobile: sh73a0 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.

Note that unlike on R-Mobile A1 (r8a7740), PM domain D4 can be powered
down without ill effects on s2ram behavior, just like on SH-Mobile AP4
(sh7372).  Hence we can postpone adding a (minimal) device node for the
Coresight-ETM hardware block.

The System Controller is also used by the R-Mobile Reset driver, which
can now restart the system.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi
index 0b933e2..45b539c 100644 (file)
--- a/arch/arm/boot/dts/sh73a0.dtsi
+++ b/arch/arm/boot/dts/sh73a0.dtsi
@@ -27,12 +27,14 @@
                        compatible = "arm,cortex-a9";
                        reg = <0>;
                        clock-frequency = <1196000000>;
+                       power-domains = <&pd_a2sl>;
                };
                cpu@1 {
                        device_type = "cpu";
                        compatible = "arm,cortex-a9";
                        reg = <1>;
                        clock-frequency = <1196000000>;
+                       power-domains = <&pd_a2sl>;
                };
        };
 
@@ -57,6 +59,7 @@
                interrupts = <0 37 IRQ_TYPE_LEVEL_HIGH>,
                             <0 38 IRQ_TYPE_LEVEL_HIGH>;
                interrupt-names = "sec", "temp";
+               power-domains = <&pd_a4bc1>;
        };
 
        sbsc1: memory-controller@fe400000 {
@@ -65,6 +68,7 @@
                interrupts = <0 35 IRQ_TYPE_LEVEL_HIGH>,
                             <0 36 IRQ_TYPE_LEVEL_HIGH>;
                interrupt-names = "sec", "temp";
+               power-domains = <&pd_a4bc0>;
        };
 
        pmu {
@@ -77,11 +81,12 @@
                compatible = "renesas,cmt-48-sh73a0", "renesas,cmt-48";
                reg = <0xe6138000 0x200>;
                interrupts = <0 65 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&mstp3_clks SH73A0_CLK_CMT1>;
+               clock-names = "fck";
+               power-domains = <&pd_c5>;
 
                renesas,channels-mask = <0x3f>;
 
-               clocks = <&mstp3_clks SH73A0_CLK_CMT1>;
-               clock-names = "fck";
                status = "disabled";
        };
 
@@ -103,6 +108,7 @@
                              0 7 IRQ_TYPE_LEVEL_HIGH
                              0 8 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp5_clks SH73A0_CLK_INTCA0>;
+               power-domains = <&pd_a4s>;
                control-parent;
        };
 
@@ -124,6 +130,7 @@
                              0 15 IRQ_TYPE_LEVEL_HIGH
                              0 16 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp5_clks SH73A0_CLK_INTCA0>;
+               power-domains = <&pd_a4s>;
                control-parent;
        };
 
@@ -145,6 +152,7 @@
                              0 23 IRQ_TYPE_LEVEL_HIGH
                              0 24 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp5_clks SH73A0_CLK_INTCA0>;
+               power-domains = <&pd_a4s>;
                control-parent;
        };
 
@@ -166,6 +174,7 @@
                              0 31 IRQ_TYPE_LEVEL_HIGH
                              0 32 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp5_clks SH73A0_CLK_INTCA0>;
+               power-domains = <&pd_a4s>;
                control-parent;
        };
 
@@ -179,6 +188,7 @@
                              0 169 IRQ_TYPE_LEVEL_HIGH
                              0 170 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp1_clks SH73A0_CLK_IIC0>;
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -192,6 +202,7 @@
                              0 53 IRQ_TYPE_LEVEL_HIGH
                              0 54 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp3_clks SH73A0_CLK_IIC1>;
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -205,6 +216,7 @@
                              0 173 IRQ_TYPE_LEVEL_HIGH
                              0 174 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp0_clks SH73A0_CLK_IIC2>;
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -218,6 +230,7 @@
                              0 185 IRQ_TYPE_LEVEL_HIGH
                              0 186 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp4_clks SH73A0_CLK_IIC3>;
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -231,6 +244,7 @@
                              0 189 IRQ_TYPE_LEVEL_HIGH
                              0 190 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp4_clks SH73A0_CLK_IIC4>;
+               power-domains = <&pd_c5>;
                status = "disabled";
        };
 
@@ -240,6 +254,7 @@
                interrupts = <0 140 IRQ_TYPE_LEVEL_HIGH
                              0 141 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp3_clks SH73A0_CLK_MMCIF0>;
+               power-domains = <&pd_a3sp>;
                reg-io-width = <4>;
                status = "disabled";
        };
@@ -251,6 +266,7 @@
                              0 84 IRQ_TYPE_LEVEL_HIGH
                              0 85 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp3_clks SH73A0_CLK_SDHI0>;
+               power-domains = <&pd_a3sp>;
                cap-sd-highspeed;
                status = "disabled";
        };
@@ -262,6 +278,7 @@
                interrupts = <0 88 IRQ_TYPE_LEVEL_HIGH
                              0 89 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp3_clks SH73A0_CLK_SDHI1>;
+               power-domains = <&pd_a3sp>;
                toshiba,mmc-wrprotect-disable;
                cap-sd-highspeed;
                status = "disabled";
@@ -273,6 +290,7 @@
                interrupts = <0 104 IRQ_TYPE_LEVEL_HIGH
                              0 105 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp3_clks SH73A0_CLK_SDHI2>;
+               power-domains = <&pd_a3sp>;
                toshiba,mmc-wrprotect-disable;
                cap-sd-highspeed;
                status = "disabled";
@@ -284,6 +302,7 @@
                interrupts = <0 72 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA0>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -293,6 +312,7 @@
                interrupts = <0 73 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA1>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -302,6 +322,7 @@
                interrupts = <0 74 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA2>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -311,6 +332,7 @@
                interrupts = <0 75 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA3>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -320,6 +342,7 @@
                interrupts = <0 78 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA4>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -329,6 +352,7 @@
                interrupts = <0 79 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA5>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -338,6 +362,7 @@
                interrupts = <0 156 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp3_clks SH73A0_CLK_SCIFA6>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -347,6 +372,7 @@
                interrupts = <0 143 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFA7>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -356,6 +382,7 @@
                interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&mstp2_clks SH73A0_CLK_SCIFB>;
                clock-names = "sci_ick";
+               power-domains = <&pd_a3sp>;
                status = "disabled";
        };
 
@@ -374,6 +401,117 @@
                        <&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>;
+       };
+
+       sysc: system-controller@e6180000 {
+               compatible = "renesas,sysc-sh73a0", "renesas,sysc-rmobile";
+               reg = <0xe6180000 0x8000>, <0xe6188000 0x8000>;
+
+               pm-domains {
+                       pd_c5: c5 {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               #power-domain-cells = <0>;
+
+                               pd_c4: c4@0 {
+                                       reg = <0>;
+                                       #power-domain-cells = <0>;
+                               };
+
+                               pd_d4: d4@1 {
+                                       reg = <1>;
+                                       #power-domain-cells = <0>;
+                               };
+
+                               pd_a4bc0: a4bc0@4 {
+                                       reg = <4>;
+                                       #power-domain-cells = <0>;
+                               };
+
+                               pd_a4bc1: a4bc1@5 {
+                                       reg = <5>;
+                                       #power-domain-cells = <0>;
+                               };
+
+                               pd_a4lc0: a4lc0@6 {
+                                       reg = <6>;
+                                       #power-domain-cells = <0>;
+                               };
+
+                               pd_a4lc1: a4lc1@7 {
+                                       reg = <7>;
+                                       #power-domain-cells = <0>;
+                               };
+
+                               pd_a4mp: a4mp@8 {
+                                       reg = <8>;
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       #power-domain-cells = <0>;
+
+                                       pd_a3mp: a3mp@9 {
+                                               reg = <9>;
+                                               #power-domain-cells = <0>;
+                                       };
+
+                                       pd_a3vc: a3vc@10 {
+                                               reg = <10>;
+                                               #power-domain-cells = <0>;
+                                       };
+                               };
+
+                               pd_a4rm: a4rm@12 {
+                                       reg = <12>;
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       #power-domain-cells = <0>;
+
+                                       pd_a3r: a3r@13 {
+                                               reg = <13>;
+                                               #address-cells = <1>;
+                                               #size-cells = <0>;
+                                               #power-domain-cells = <0>;
+
+                                               pd_a2rv: a2rv@14 {
+                                                       reg = <14>;
+                                                       #address-cells = <1>;
+                                                       #size-cells = <0>;
+                                                       #power-domain-cells = <0>;
+                                               };
+                                       };
+                               };
+
+                               pd_a4s: a4s@16 {
+                                       reg = <16>;
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       #power-domain-cells = <0>;
+
+                                       pd_a3sp: a3sp@17 {
+                                               reg = <17>;
+                                               #power-domain-cells = <0>;
+                                       };
+
+                                       pd_a3sg: a3sg@18 {
+                                               reg = <18>;
+                                               #power-domain-cells = <0>;
+                                       };
+
+                                       pd_a3sm: a3sm@19 {
+                                               reg = <19>;
+                                               #address-cells = <1>;
+                                               #size-cells = <0>;
+                                               #power-domain-cells = <0>;
+
+                                               pd_a2sl: a2sl@20 {
+                                                       reg = <20>;
+                                                       #power-domain-cells = <0>;
+                                               };
+                                       };
+                               };
+                       };
+               };
        };
 
        sh_fsi2: sound@ec230000 {
@@ -381,6 +519,7 @@
                compatible = "renesas,fsi2-sh73a0", "renesas,sh_fsi2";
                reg = <0xec230000 0x400>;
                interrupts = <0 146 0x4>;
+               power-domains = <&pd_a4mp>;
                status = "disabled";
        };
 
@@ -393,6 +532,7 @@
                reg = <0xfec10000 0x400>;
                interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&zb_clk>;
+               power-domains = <&pd_a4s>;
        };
 
        clocks {