1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Samsung Exynos5420 SoC cpu device tree source
4 *
5 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com
7 *
8 * This file provides desired ordering for Exynos5420 and Exynos5800
9 * boards: CPU[0123] being the A15.
10 *
11 * The Exynos5420, 5422 and 5800 actually share the same CPU configuration
12 * but particular boards choose different booting order.
13 *
14 * Exynos5420 and Exynos5800 always boot from Cortex-A15. On Exynos5422
15 * booting cluster (big or LITTLE) is chosen by IROM code by reading
16 * the gpg2-1 GPIO. By default all Exynos5422 based boards choose booting
17 * from the LITTLE: Cortex-A7.
18 */
19
20 / {
21 cpus {
22 #address-cells = <1>;
23 #size-cells = <0>;
24
25 cpu-map {
26 cluster0 {
27 core0 {
28 cpu = <&cpu0>;
29 };
30 core1 {
31 cpu = <&cpu1>;
32 };
33 core2 {
34 cpu = <&cpu2>;
35 };
36 core3 {
37 cpu = <&cpu3>;
38 };
39 };
40
41 cluster1 {
42 core0 {
43 cpu = <&cpu4>;
44 };
45 core1 {
46 cpu = <&cpu5>;
47 };
48 core2 {
49 cpu = <&cpu6>;
50 };
51 core3 {
52 cpu = <&cpu7>;
53 };
54 };
55 };
56
57 cpu0: cpu@0 {
58 device_type = "cpu";
59 compatible = "arm,cortex-a15";
60 reg = <0x0>;
61 clocks = <&clock CLK_ARM_CLK>;
62 clock-frequency = <1800000000>;
63 cci-control-port = <&cci_control1>;
64 operating-points-v2 = <&cluster_a15_opp_table>;
65 #cooling-cells = <2>; /* min followed by max */
66 capacity-dmips-mhz = <1024>;
67 };
68
69 cpu1: cpu@1 {
70 device_type = "cpu";
71 compatible = "arm,cortex-a15";
72 reg = <0x1>;
73 clocks = <&clock CLK_ARM_CLK>;
74 clock-frequency = <1800000000>;
75 cci-control-port = <&cci_control1>;
76 operating-points-v2 = <&cluster_a15_opp_table>;
77 #cooling-cells = <2>; /* min followed by max */
78 capacity-dmips-mhz = <1024>;
79 };
80
81 cpu2: cpu@2 {
82 device_type = "cpu";
83 compatible = "arm,cortex-a15";
84 reg = <0x2>;
85 clocks = <&clock CLK_ARM_CLK>;
86 clock-frequency = <1800000000>;
87 cci-control-port = <&cci_control1>;
88 operating-points-v2 = <&cluster_a15_opp_table>;
89 #cooling-cells = <2>; /* min followed by max */
90 capacity-dmips-mhz = <1024>;
91 };
92
93 cpu3: cpu@3 {
94 device_type = "cpu";
95 compatible = "arm,cortex-a15";
96 reg = <0x3>;
97 clocks = <&clock CLK_ARM_CLK>;
98 clock-frequency = <1800000000>;
99 cci-control-port = <&cci_control1>;
100 operating-points-v2 = <&cluster_a15_opp_table>;
101 #cooling-cells = <2>; /* min followed by max */
102 capacity-dmips-mhz = <1024>;
103 };
104
105 cpu4: cpu@100 {
106 device_type = "cpu";
107 compatible = "arm,cortex-a7";
108 reg = <0x100>;
109 clocks = <&clock CLK_KFC_CLK>;
110 clock-frequency = <1000000000>;
111 cci-control-port = <&cci_control0>;
112 operating-points-v2 = <&cluster_a7_opp_table>;
113 #cooling-cells = <2>; /* min followed by max */
114 capacity-dmips-mhz = <539>;
115 };
116
117 cpu5: cpu@101 {
118 device_type = "cpu";
119 compatible = "arm,cortex-a7";
120 reg = <0x101>;
121 clocks = <&clock CLK_KFC_CLK>;
122 clock-frequency = <1000000000>;
123 cci-control-port = <&cci_control0>;
124 operating-points-v2 = <&cluster_a7_opp_table>;
125 #cooling-cells = <2>; /* min followed by max */
126 capacity-dmips-mhz = <539>;
127 };
128
129 cpu6: cpu@102 {
130 device_type = "cpu";
131 compatible = "arm,cortex-a7";
132 reg = <0x102>;
133 clocks = <&clock CLK_KFC_CLK>;
134 clock-frequency = <1000000000>;
135 cci-control-port = <&cci_control0>;
136 operating-points-v2 = <&cluster_a7_opp_table>;
137 #cooling-cells = <2>; /* min followed by max */
138 capacity-dmips-mhz = <539>;
139 };
140
141 cpu7: cpu@103 {
142 device_type = "cpu";
143 compatible = "arm,cortex-a7";
144 reg = <0x103>;
145 clocks = <&clock CLK_KFC_CLK>;
146 clock-frequency = <1000000000>;
147 cci-control-port = <&cci_control0>;
148 operating-points-v2 = <&cluster_a7_opp_table>;
149 #cooling-cells = <2>; /* min followed by max */
150 capacity-dmips-mhz = <539>;
151 };
152 };
153 };
154
155 &arm_a7_pmu {
156 interrupt-affinity = <&cpu4>, <&cpu5>, <&cpu6>, <&cpu7>;
157 status = "okay";
158 };
159
160 &arm_a15_pmu {
161 interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
162 status = "okay";
163 };
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