[deliverable/linux.git] / Documentation / devicetree / bindings / arm / cpus.txt

=================
ARM CPUs bindings
=================

The device tree allows to describe the layout of CPUs in a system through
the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
defining properties for every cpu.

Bindings for CPU nodes follow the ePAPR v1.1 standard, available from:

https://www.power.org/documentation/epapr-version-1-1/

with updates for 32-bit and 64-bit ARM systems provided in this document.

================================
Convention used in this document
================================

This document follows the conventions described in the ePAPR v1.1, with
the addition:

- square brackets define bitfields, eg reg[7:0] value of the bitfield in
  the reg property contained in bits 7 down to 0

=====================================
cpus and cpu node bindings definition
=====================================

The ARM architecture, in accordance with the ePAPR, requires the cpus and cpu
nodes to be present and contain the properties described below.

- cpus node

	Description: Container of cpu nodes

	The node name must be "cpus".

	A cpus node must define the following properties:

	- #address-cells
		Usage: required
		Value type: <u32>

		Definition depends on ARM architecture version and
		configuration:

			# On uniprocessor ARM architectures previous to v7
			  value must be 1, to enable a simple enumeration
			  scheme for processors that do not have a HW CPU
			  identification register.
			# On 32-bit ARM 11 MPcore, ARM v7 or later systems
			  value must be 1, that corresponds to CPUID/MPIDR
			  registers sizes.
			# On ARM v8 64-bit systems value should be set to 2,
			  that corresponds to the MPIDR_EL1 register size.
			  If MPIDR_EL1[63:32] value is equal to 0 on all CPUs
			  in the system, #address-cells can be set to 1, since
			  MPIDR_EL1[63:32] bits are not used for CPUs
			  identification.
	- #size-cells
		Usage: required
		Value type: <u32>
		Definition: must be set to 0

- cpu node

	Description: Describes a CPU in an ARM based system

	PROPERTIES

	- device_type
		Usage: required
		Value type: <string>
		Definition: must be "cpu"
	- reg
		Usage and definition depend on ARM architecture version and
		configuration:

			# On uniprocessor ARM architectures previous to v7
			  this property is required and must be set to 0.

			# On ARM 11 MPcore based systems this property is
			  required and matches the CPUID[11:0] register bits.

			  Bits [11:0] in the reg cell must be set to
			  bits [11:0] in CPU ID register.

			  All other bits in the reg cell must be set to 0.

			# On 32-bit ARM v7 or later systems this property is
			  required and matches the CPU MPIDR[23:0] register
			  bits.

			  Bits [23:0] in the reg cell must be set to
			  bits [23:0] in MPIDR.

			  All other bits in the reg cell must be set to 0.

			# On ARM v8 64-bit systems this property is required
			  and matches the MPIDR_EL1 register affinity bits.

			  * If cpus node's #address-cells property is set to 2

			    The first reg cell bits [7:0] must be set to
			    bits [39:32] of MPIDR_EL1.

			    The second reg cell bits [23:0] must be set to
			    bits [23:0] of MPIDR_EL1.

			  * If cpus node's #address-cells property is set to 1

			    The reg cell bits [23:0] must be set to bits [23:0]
			    of MPIDR_EL1.

			  All other bits in the reg cells must be set to 0.

	- compatible:
		Usage: required
		Value type: <string>
		Definition: should be one of:
			    "arm,arm710t"
			    "arm,arm720t"
			    "arm,arm740t"
			    "arm,arm7ej-s"
			    "arm,arm7tdmi"
			    "arm,arm7tdmi-s"
			    "arm,arm9es"
			    "arm,arm9ej-s"
			    "arm,arm920t"
			    "arm,arm922t"
			    "arm,arm925"
			    "arm,arm926e-s"
			    "arm,arm926ej-s"
			    "arm,arm940t"
			    "arm,arm946e-s"
			    "arm,arm966e-s"
			    "arm,arm968e-s"
			    "arm,arm9tdmi"
			    "arm,arm1020e"
			    "arm,arm1020t"
			    "arm,arm1022e"
			    "arm,arm1026ej-s"
			    "arm,arm1136j-s"
			    "arm,arm1136jf-s"
			    "arm,arm1156t2-s"
			    "arm,arm1156t2f-s"
			    "arm,arm1176jzf"
			    "arm,arm1176jz-s"
			    "arm,arm1176jzf-s"
			    "arm,arm11mpcore"
			    "arm,cortex-a5"
			    "arm,cortex-a7"
			    "arm,cortex-a8"
			    "arm,cortex-a9"
			    "arm,cortex-a12"
			    "arm,cortex-a15"
			    "arm,cortex-a17"
			    "arm,cortex-a53"
			    "arm,cortex-a57"
			    "arm,cortex-m0"
			    "arm,cortex-m0+"
			    "arm,cortex-m1"
			    "arm,cortex-m3"
			    "arm,cortex-m4"
			    "arm,cortex-r4"
			    "arm,cortex-r5"
			    "arm,cortex-r7"
			    "brcm,brahma-b15"
			    "cavium,thunder"
			    "faraday,fa526"
			    "intel,sa110"
			    "intel,sa1100"
			    "marvell,feroceon"
			    "marvell,mohawk"
			    "marvell,pj4a"
			    "marvell,pj4b"
			    "marvell,sheeva-v5"
			    "qcom,krait"
			    "qcom,scorpion"
	- enable-method
		Value type: <stringlist>
		Usage and definition depend on ARM architecture version.
			# On ARM v8 64-bit this property is required and must
			  be one of:
			     "psci"
			     "spin-table"
			# On ARM 32-bit systems this property is optional and
			  can be one of:
			    "allwinner,sun6i-a31"
			    "arm,psci"
			    "brcm,brahma-b15"
			    "marvell,armada-375-smp"
			    "marvell,armada-380-smp"
			    "marvell,armada-xp-smp"
			    "qcom,gcc-msm8660"
			    "qcom,kpss-acc-v1"
			    "qcom,kpss-acc-v2"
			    "rockchip,rk3066-smp"

	- cpu-release-addr
		Usage: required for systems that have an "enable-method"
		       property value of "spin-table".
		Value type: <prop-encoded-array>
		Definition:
			# On ARM v8 64-bit systems must be a two cell
			  property identifying a 64-bit zero-initialised
			  memory location.

	- qcom,saw
		Usage: required for systems that have an "enable-method"
		       property value of "qcom,kpss-acc-v1" or
		       "qcom,kpss-acc-v2"
		Value type: <phandle>
		Definition: Specifies the SAW[1] node associated with this CPU.

	- qcom,acc
		Usage: required for systems that have an "enable-method"
		       property value of "qcom,kpss-acc-v1" or
		       "qcom,kpss-acc-v2"
		Value type: <phandle>
		Definition: Specifies the ACC[2] node associated with this CPU.

	- cpu-idle-states
		Usage: Optional
		Value type: <prop-encoded-array>
		Definition:
			# List of phandles to idle state nodes supported
			  by this cpu [3].

Example 1 (dual-cluster big.LITTLE system 32-bit):

	cpus {
		#size-cells = <0>;
		#address-cells = <1>;

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a15";
			reg = <0x0>;
		};

		cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a15";
			reg = <0x1>;
		};

		cpu@100 {
			device_type = "cpu";
			compatible = "arm,cortex-a7";
			reg = <0x100>;
		};

		cpu@101 {
			device_type = "cpu";
			compatible = "arm,cortex-a7";
			reg = <0x101>;
		};
	};

Example 2 (Cortex-A8 uniprocessor 32-bit system):

	cpus {
		#size-cells = <0>;
		#address-cells = <1>;

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a8";
			reg = <0x0>;
		};
	};

Example 3 (ARM 926EJ-S uniprocessor 32-bit system):

	cpus {
		#size-cells = <0>;
		#address-cells = <1>;

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,arm926ej-s";
			reg = <0x0>;
		};
	};

Example 4 (ARM Cortex-A57 64-bit system):

cpus {
	#size-cells = <0>;
	#address-cells = <2>;

	cpu@0 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x0>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@1 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x1>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x100>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@101 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x101>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@10000 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x10000>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@10001 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x10001>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@10100 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x10100>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@10101 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x0 0x10101>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100000000 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x0>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100000001 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x1>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100000100 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x100>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100000101 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x101>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100010000 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x10000>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100010001 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x10001>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100010100 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x10100>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};

	cpu@100010101 {
		device_type = "cpu";
		compatible = "arm,cortex-a57";
		reg = <0x1 0x10101>;
		enable-method = "spin-table";
		cpu-release-addr = <0 0x20000000>;
	};
};

--
[1] arm/msm/qcom,saw2.txt
[2] arm/msm/qcom,kpss-acc.txt
[3] ARM Linux kernel documentation - idle states bindings
    Documentation/devicetree/bindings/arm/idle-states.txt
Commit	Line	Data
594f88d1 LP	1	=================
	2	ARM CPUs bindings
	3	=================
a0ae0240 LP	4
	5	The device tree allows to describe the layout of CPUs in a system through
	6	the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
	7	defining properties for every cpu.
	8
594f88d1 LP	9	Bindings for CPU nodes follow the ePAPR v1.1 standard, available from:
	10
	11	https://www.power.org/documentation/epapr-version-1-1/
	12
	13	with updates for 32-bit and 64-bit ARM systems provided in this document.
	14
	15	================================
	16	Convention used in this document
	17	================================
	18
	19	This document follows the conventions described in the ePAPR v1.1, with
	20	the addition:
	21
	22	- square brackets define bitfields, eg reg[7:0] value of the bitfield in
	23	the reg property contained in bits 7 down to 0
	24
	25	=====================================
	26	cpus and cpu node bindings definition
	27	=====================================
	28
	29	The ARM architecture, in accordance with the ePAPR, requires the cpus and cpu
	30	nodes to be present and contain the properties described below.
	31
	32	- cpus node
	33
	34	Description: Container of cpu nodes
	35
	36	The node name must be "cpus".
	37
	38	A cpus node must define the following properties:
	39
	40	- #address-cells
	41	Usage: required
	42	Value type: <u32>
	43
	44	Definition depends on ARM architecture version and
	45	configuration:
	46
	47	# On uniprocessor ARM architectures previous to v7
	48	value must be 1, to enable a simple enumeration
	49	scheme for processors that do not have a HW CPU
	50	identification register.
	51	# On 32-bit ARM 11 MPcore, ARM v7 or later systems
	52	value must be 1, that corresponds to CPUID/MPIDR
	53	registers sizes.
	54	# On ARM v8 64-bit systems value should be set to 2,
	55	that corresponds to the MPIDR_EL1 register size.
	56	If MPIDR_EL1[63:32] value is equal to 0 on all CPUs
	57	in the system, #address-cells can be set to 1, since
	58	MPIDR_EL1[63:32] bits are not used for CPUs
	59	identification.
	60	- #size-cells
	61	Usage: required
	62	Value type: <u32>
	63	Definition: must be set to 0
	64
	65	- cpu node
	66
	67	Description: Describes a CPU in an ARM based system
	68
	69	PROPERTIES
	70
	71	- device_type
	72	Usage: required
73	Value type: <string>
74	Definition: must be "cpu"
75	- reg
76	Usage and definition depend on ARM architecture version and
77	configuration:
78
79	# On uniprocessor ARM architectures previous to v7
80	this property is required and must be set to 0.
81
82	# On ARM 11 MPcore based systems this property is
83	required and matches the CPUID[11:0] register bits.
84
85	Bits [11:0] in the reg cell must be set to
86	bits [11:0] in CPU ID register.
87
88	All other bits in the reg cell must be set to 0.
89
90	# On 32-bit ARM v7 or later systems this property is
91	required and matches the CPU MPIDR[23:0] register
92	bits.
93
94	Bits [23:0] in the reg cell must be set to
95	bits [23:0] in MPIDR.
96
97	All other bits in the reg cell must be set to 0.
98
99	# On ARM v8 64-bit systems this property is required
100	and matches the MPIDR_EL1 register affinity bits.
101
102	* If cpus node's #address-cells property is set to 2
103
104	The first reg cell bits [7:0] must be set to
105	bits [39:32] of MPIDR_EL1.
106
107	The second reg cell bits [23:0] must be set to
108	bits [23:0] of MPIDR_EL1.
109
110	* If cpus node's #address-cells property is set to 1
111
112	The reg cell bits [23:0] must be set to bits [23:0]
113	of MPIDR_EL1.
114
115	All other bits in the reg cells must be set to 0.
116
117	- compatible:
118	Usage: required
119	Value type: <string>
120	Definition: should be one of:
121	"arm,arm710t"
122	"arm,arm720t"
123	"arm,arm740t"
124	"arm,arm7ej-s"
125	"arm,arm7tdmi"
126	"arm,arm7tdmi-s"
127	"arm,arm9es"
128	"arm,arm9ej-s"
129	"arm,arm920t"
130	"arm,arm922t"
131	"arm,arm925"
132	"arm,arm926e-s"
133	"arm,arm926ej-s"
134	"arm,arm940t"
135	"arm,arm946e-s"
136	"arm,arm966e-s"
137	"arm,arm968e-s"
138	"arm,arm9tdmi"
139	"arm,arm1020e"
140	"arm,arm1020t"
141	"arm,arm1022e"
142	"arm,arm1026ej-s"
143	"arm,arm1136j-s"
144	"arm,arm1136jf-s"
145	"arm,arm1156t2-s"
146	"arm,arm1156t2f-s"
147	"arm,arm1176jzf"
148	"arm,arm1176jz-s"
149	"arm,arm1176jzf-s"
150	"arm,arm11mpcore"
151	"arm,cortex-a5"
152	"arm,cortex-a7"
153	"arm,cortex-a8"
154	"arm,cortex-a9"
198946b1	155	"arm,cortex-a12"
594f88d1	156	"arm,cortex-a15"
198946b1	157	"arm,cortex-a17"
594f88d1 LP	158	"arm,cortex-a53"
	159	"arm,cortex-a57"
	160	"arm,cortex-m0"
	161	"arm,cortex-m0+"
	162	"arm,cortex-m1"
	163	"arm,cortex-m3"
	164	"arm,cortex-m4"
	165	"arm,cortex-r4"
	166	"arm,cortex-r5"
	167	"arm,cortex-r7"
0a540d4b	168	"brcm,brahma-b15"
4c308700	169	"cavium,thunder"
594f88d1 LP	170	"faraday,fa526"
	171	"intel,sa110"
	172	"intel,sa1100"
	173	"marvell,feroceon"
	174	"marvell,mohawk"
	175	"marvell,pj4a"
	176	"marvell,pj4b"
	177	"marvell,sheeva-v5"
	178	"qcom,krait"
	179	"qcom,scorpion"
	180	- enable-method
	181	Value type: <stringlist>
	182	Usage and definition depend on ARM architecture version.
	183	# On ARM v8 64-bit this property is required and must
	184	be one of:
594f88d1	185	"psci"
e1dc566f	186	"spin-table"
b00c927d RV	187	# On ARM 32-bit systems this property is optional and
b00c927d RV	188	can be one of:
913627b3	189	"allwinner,sun6i-a31"
e1dc566f	190	"arm,psci"
0a540d4b	191	"brcm,brahma-b15"
1ee89e22 GC	192	"marvell,armada-375-smp"
1ee89e22 GC	193	"marvell,armada-380-smp"
2c9b2240	194	"marvell,armada-xp-smp"
e1dc566f OJ	195	"qcom,gcc-msm8660"
	196	"qcom,kpss-acc-v1"
	197	"qcom,kpss-acc-v2"
26ab69cb	198	"rockchip,rk3066-smp"
594f88d1 LP	199
	200	- cpu-release-addr
	201	Usage: required for systems that have an "enable-method"
	202	property value of "spin-table".
	203	Value type: <prop-encoded-array>
	204	Definition:
	205	# On ARM v8 64-bit systems must be a two cell
	206	property identifying a 64-bit zero-initialised
	207	memory location.
	208
b00c927d RV	209	- qcom,saw
	210	Usage: required for systems that have an "enable-method"
	211	property value of "qcom,kpss-acc-v1" or
	212	"qcom,kpss-acc-v2"
	213	Value type: <phandle>
	214	Definition: Specifies the SAW[1] node associated with this CPU.
	215
	216	- qcom,acc
	217	Usage: required for systems that have an "enable-method"
	218	property value of "qcom,kpss-acc-v1" or
	219	"qcom,kpss-acc-v2"
	220	Value type: <phandle>
	221	Definition: Specifies the ACC[2] node associated with this CPU.
	222
3f8161b2 LP	223	- cpu-idle-states
	224	Usage: Optional
	225	Value type: <prop-encoded-array>
	226	Definition:
	227	# List of phandles to idle state nodes supported
	228	by this cpu [3].
b00c927d	229
594f88d1	230	Example 1 (dual-cluster big.LITTLE system 32-bit):
a0ae0240 LP	231
	232	cpus {
	233	#size-cells = <0>;
	234	#address-cells = <1>;
	235
594f88d1	236	cpu@0 {
a0ae0240 LP	237	device_type = "cpu";
	238	compatible = "arm,cortex-a15";
	239	reg = <0x0>;
	240	};
	241
594f88d1	242	cpu@1 {
a0ae0240 LP	243	device_type = "cpu";
	244	compatible = "arm,cortex-a15";
	245	reg = <0x1>;
	246	};
	247
594f88d1	248	cpu@100 {
a0ae0240 LP	249	device_type = "cpu";
	250	compatible = "arm,cortex-a7";
	251	reg = <0x100>;
	252	};
	253
594f88d1	254	cpu@101 {
a0ae0240 LP	255	device_type = "cpu";
	256	compatible = "arm,cortex-a7";
	257	reg = <0x101>;
	258	};
	259	};
594f88d1 LP	260
	261	Example 2 (Cortex-A8 uniprocessor 32-bit system):
	262
	263	cpus {
	264	#size-cells = <0>;
	265	#address-cells = <1>;
	266
	267	cpu@0 {
	268	device_type = "cpu";
	269	compatible = "arm,cortex-a8";
	270	reg = <0x0>;
	271	};
	272	};
	273
	274	Example 3 (ARM 926EJ-S uniprocessor 32-bit system):
	275
	276	cpus {
	277	#size-cells = <0>;
	278	#address-cells = <1>;
	279
	280	cpu@0 {
	281	device_type = "cpu";
	282	compatible = "arm,arm926ej-s";
	283	reg = <0x0>;
	284	};
	285	};
	286
	287	Example 4 (ARM Cortex-A57 64-bit system):
	288
	289	cpus {
	290	#size-cells = <0>;
	291	#address-cells = <2>;
	292
	293	cpu@0 {
	294	device_type = "cpu";
	295	compatible = "arm,cortex-a57";
	296	reg = <0x0 0x0>;
	297	enable-method = "spin-table";
	298	cpu-release-addr = <0 0x20000000>;
	299	};
	300
	301	cpu@1 {
	302	device_type = "cpu";
	303	compatible = "arm,cortex-a57";
	304	reg = <0x0 0x1>;
	305	enable-method = "spin-table";
	306	cpu-release-addr = <0 0x20000000>;
	307	};
	308
	309	cpu@100 {
	310	device_type = "cpu";
	311	compatible = "arm,cortex-a57";
	312	reg = <0x0 0x100>;
	313	enable-method = "spin-table";
	314	cpu-release-addr = <0 0x20000000>;
	315	};
	316
	317	cpu@101 {
	318	device_type = "cpu";
	319	compatible = "arm,cortex-a57";
	320	reg = <0x0 0x101>;
	321	enable-method = "spin-table";
	322	cpu-release-addr = <0 0x20000000>;
	323	};
324
325	cpu@10000 {
326	device_type = "cpu";
327	compatible = "arm,cortex-a57";
328	reg = <0x0 0x10000>;
329	enable-method = "spin-table";
330	cpu-release-addr = <0 0x20000000>;
331	};
332
333	cpu@10001 {
334	device_type = "cpu";
335	compatible = "arm,cortex-a57";
336	reg = <0x0 0x10001>;
337	enable-method = "spin-table";
338	cpu-release-addr = <0 0x20000000>;
339	};
340
341	cpu@10100 {
342	device_type = "cpu";
343	compatible = "arm,cortex-a57";
344	reg = <0x0 0x10100>;
345	enable-method = "spin-table";
346	cpu-release-addr = <0 0x20000000>;
347	};
348
349	cpu@10101 {
350	device_type = "cpu";
351	compatible = "arm,cortex-a57";
352	reg = <0x0 0x10101>;
353	enable-method = "spin-table";
354	cpu-release-addr = <0 0x20000000>;
355	};
356
357	cpu@100000000 {
358	device_type = "cpu";
359	compatible = "arm,cortex-a57";
360	reg = <0x1 0x0>;
361	enable-method = "spin-table";
362	cpu-release-addr = <0 0x20000000>;
363	};
364
365	cpu@100000001 {
366	device_type = "cpu";
367	compatible = "arm,cortex-a57";
368	reg = <0x1 0x1>;
369	enable-method = "spin-table";
370	cpu-release-addr = <0 0x20000000>;
371	};
372
373	cpu@100000100 {
374	device_type = "cpu";
375	compatible = "arm,cortex-a57";
376	reg = <0x1 0x100>;
377	enable-method = "spin-table";
378	cpu-release-addr = <0 0x20000000>;
379	};
380
381	cpu@100000101 {
382	device_type = "cpu";
383	compatible = "arm,cortex-a57";
384	reg = <0x1 0x101>;
385	enable-method = "spin-table";
386	cpu-release-addr = <0 0x20000000>;
387	};
388
389	cpu@100010000 {
390	device_type = "cpu";
391	compatible = "arm,cortex-a57";
392	reg = <0x1 0x10000>;
393	enable-method = "spin-table";
394	cpu-release-addr = <0 0x20000000>;
395	};
396
397	cpu@100010001 {
398	device_type = "cpu";
399	compatible = "arm,cortex-a57";
400	reg = <0x1 0x10001>;
401	enable-method = "spin-table";
402	cpu-release-addr = <0 0x20000000>;
403	};
404
405	cpu@100010100 {
406	device_type = "cpu";
407	compatible = "arm,cortex-a57";
408	reg = <0x1 0x10100>;
409	enable-method = "spin-table";
410	cpu-release-addr = <0 0x20000000>;
411	};
412
413	cpu@100010101 {
414	device_type = "cpu";
415	compatible = "arm,cortex-a57";
416	reg = <0x1 0x10101>;
417	enable-method = "spin-table";
418	cpu-release-addr = <0 0x20000000>;
419	};
420	};
b00c927d RV	421
	422	--
	423	[1] arm/msm/qcom,saw2.txt
	424	[2] arm/msm/qcom,kpss-acc.txt
3f8161b2 LP	425	[3] ARM Linux kernel documentation - idle states bindings
3f8161b2 LP	426	Documentation/devicetree/bindings/arm/idle-states.txt