arch/arm/boot/dts/exynos5420-cpus.dtsi

   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                 cpu0: cpu@0 {
  26                         device_type = "cpu";
  27                         compatible = "arm,cortex-a15";
  28                         reg = <0x0>;
  29                         clocks = <&clock CLK_ARM_CLK>;
  30                         clock-frequency = <1800000000>;
  31                         cci-control-port = <&cci_control1>;
  32                         operating-points-v2 = <&cluster_a15_opp_table>;
  33                         #cooling-cells = <2>; /* min followed by max */
  34                         capacity-dmips-mhz = <1024>;
  35                 };
  36
  37                 cpu1: cpu@1 {
  38                         device_type = "cpu";
  39                         compatible = "arm,cortex-a15";
  40                         reg = <0x1>;
  41                         clocks = <&clock CLK_ARM_CLK>;
  42                         clock-frequency = <1800000000>;
  43                         cci-control-port = <&cci_control1>;
  44                         operating-points-v2 = <&cluster_a15_opp_table>;
  45                         #cooling-cells = <2>; /* min followed by max */
  46                         capacity-dmips-mhz = <1024>;
  47                 };
  48
  49                 cpu2: cpu@2 {
  50                         device_type = "cpu";
  51                         compatible = "arm,cortex-a15";
  52                         reg = <0x2>;
  53                         clocks = <&clock CLK_ARM_CLK>;
  54                         clock-frequency = <1800000000>;
  55                         cci-control-port = <&cci_control1>;
  56                         operating-points-v2 = <&cluster_a15_opp_table>;
  57                         #cooling-cells = <2>; /* min followed by max */
  58                         capacity-dmips-mhz = <1024>;
  59                 };
  60
  61                 cpu3: cpu@3 {
  62                         device_type = "cpu";
  63                         compatible = "arm,cortex-a15";
  64                         reg = <0x3>;
  65                         clocks = <&clock CLK_ARM_CLK>;
  66                         clock-frequency = <1800000000>;
  67                         cci-control-port = <&cci_control1>;
  68                         operating-points-v2 = <&cluster_a15_opp_table>;
  69                         #cooling-cells = <2>; /* min followed by max */
  70                         capacity-dmips-mhz = <1024>;
  71                 };
  72
  73                 cpu4: cpu@100 {
  74                         device_type = "cpu";
  75                         compatible = "arm,cortex-a7";
  76                         reg = <0x100>;
  77                         clocks = <&clock CLK_KFC_CLK>;
  78                         clock-frequency = <1000000000>;
  79                         cci-control-port = <&cci_control0>;
  80                         operating-points-v2 = <&cluster_a7_opp_table>;
  81                         #cooling-cells = <2>; /* min followed by max */
  82                         capacity-dmips-mhz = <539>;
  83                 };
  84
  85                 cpu5: cpu@101 {
  86                         device_type = "cpu";
  87                         compatible = "arm,cortex-a7";
  88                         reg = <0x101>;
  89                         clocks = <&clock CLK_KFC_CLK>;
  90                         clock-frequency = <1000000000>;
  91                         cci-control-port = <&cci_control0>;
  92                         operating-points-v2 = <&cluster_a7_opp_table>;
  93                         #cooling-cells = <2>; /* min followed by max */
  94                         capacity-dmips-mhz = <539>;
  95                 };
  96
  97                 cpu6: cpu@102 {
  98                         device_type = "cpu";
  99                         compatible = "arm,cortex-a7";
 100                         reg = <0x102>;
 101                         clocks = <&clock CLK_KFC_CLK>;
 102                         clock-frequency = <1000000000>;
 103                         cci-control-port = <&cci_control0>;
 104                         operating-points-v2 = <&cluster_a7_opp_table>;
 105                         #cooling-cells = <2>; /* min followed by max */
 106                         capacity-dmips-mhz = <539>;
 107                 };
 108
 109                 cpu7: cpu@103 {
 110                         device_type = "cpu";
 111                         compatible = "arm,cortex-a7";
 112                         reg = <0x103>;
 113                         clocks = <&clock CLK_KFC_CLK>;
 114                         clock-frequency = <1000000000>;
 115                         cci-control-port = <&cci_control0>;
 116                         operating-points-v2 = <&cluster_a7_opp_table>;
 117                         #cooling-cells = <2>; /* min followed by max */
 118                         capacity-dmips-mhz = <539>;
 119                 };
 120         };
 121 };
 122
 123 &arm_a7_pmu {
 124         interrupt-affinity = <&cpu4>, <&cpu5>, <&cpu6>, <&cpu7>;
 125         status = "okay";
 126 };
 127
 128 &arm_a15_pmu {
 129         interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
 130         status = "okay";
 131 };