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265e83d6cf
Secondary CPUs should have the same information in DeviceTree as booting CPU from both correctness point of view and for possible hotplug scenarios. Suggested-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
131 lines
3.5 KiB
Plaintext
131 lines
3.5 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* SAMSUNG EXYNOS5422 SoC cpu device tree source
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*
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* Copyright (c) 2015 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* This file provides desired ordering for Exynos5422: CPU[0123] being the A7.
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*
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* The Exynos5420, 5422 and 5800 actually share the same CPU configuration
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* but particular boards choose different booting order.
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*
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* Exynos5420 and Exynos5800 always boot from Cortex-A15. On Exynos5422
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* booting cluster (big or LITTLE) is chosen by IROM code by reading
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* the gpg2-1 GPIO. By default all Exynos5422 based boards choose booting
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* from the LITTLE: Cortex-A7.
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*/
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/ {
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu0: cpu@100 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x100>;
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clocks = <&clock CLK_KFC_CLK>;
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clock-frequency = <1000000000>;
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cci-control-port = <&cci_control0>;
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operating-points-v2 = <&cluster_a7_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <539>;
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};
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cpu1: cpu@101 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x101>;
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clocks = <&clock CLK_KFC_CLK>;
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clock-frequency = <1000000000>;
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cci-control-port = <&cci_control0>;
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operating-points-v2 = <&cluster_a7_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <539>;
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};
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cpu2: cpu@102 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x102>;
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clocks = <&clock CLK_KFC_CLK>;
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clock-frequency = <1000000000>;
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cci-control-port = <&cci_control0>;
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operating-points-v2 = <&cluster_a7_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <539>;
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};
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cpu3: cpu@103 {
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device_type = "cpu";
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compatible = "arm,cortex-a7";
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reg = <0x103>;
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clocks = <&clock CLK_KFC_CLK>;
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clock-frequency = <1000000000>;
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cci-control-port = <&cci_control0>;
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operating-points-v2 = <&cluster_a7_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <539>;
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};
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cpu4: cpu@0 {
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device_type = "cpu";
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compatible = "arm,cortex-a15";
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reg = <0x0>;
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clocks = <&clock CLK_ARM_CLK>;
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clock-frequency = <1800000000>;
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cci-control-port = <&cci_control1>;
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operating-points-v2 = <&cluster_a15_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <1024>;
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};
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cpu5: cpu@1 {
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device_type = "cpu";
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compatible = "arm,cortex-a15";
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reg = <0x1>;
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clocks = <&clock CLK_ARM_CLK>;
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clock-frequency = <1800000000>;
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cci-control-port = <&cci_control1>;
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operating-points-v2 = <&cluster_a15_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <1024>;
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};
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cpu6: cpu@2 {
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device_type = "cpu";
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compatible = "arm,cortex-a15";
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reg = <0x2>;
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clocks = <&clock CLK_ARM_CLK>;
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clock-frequency = <1800000000>;
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cci-control-port = <&cci_control1>;
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operating-points-v2 = <&cluster_a15_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <1024>;
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};
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cpu7: cpu@3 {
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device_type = "cpu";
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compatible = "arm,cortex-a15";
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reg = <0x3>;
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clocks = <&clock CLK_ARM_CLK>;
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clock-frequency = <1800000000>;
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cci-control-port = <&cci_control1>;
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operating-points-v2 = <&cluster_a15_opp_table>;
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#cooling-cells = <2>; /* min followed by max */
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capacity-dmips-mhz = <1024>;
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};
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};
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};
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&arm_a7_pmu {
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interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
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status = "okay";
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};
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&arm_a15_pmu {
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interrupt-affinity = <&cpu4>, <&cpu5>, <&cpu6>, <&cpu7>;
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status = "okay";
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};
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