diff options
Diffstat (limited to 'arch/arm/boot/dts/exynos5422-cpus.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/exynos5422-cpus.dtsi | 164 |
1 files changed, 104 insertions, 60 deletions
diff --git a/arch/arm/boot/dts/exynos5422-cpus.dtsi b/arch/arm/boot/dts/exynos5422-cpus.dtsi index b7f60c855459..bf3c6f1ec4ee 100644 --- a/arch/arm/boot/dts/exynos5422-cpus.dtsi +++ b/arch/arm/boot/dts/exynos5422-cpus.dtsi @@ -4,78 +4,122 @@ * Copyright (c) 2015 Samsung Electronics Co., Ltd. * http://www.samsung.com * - * The only difference between EXYNOS5422 and EXYNOS5800 is cpu ordering. The - * EXYNOS5422 is booting from Cortex-A7 core while the EXYNOS5800 is booting - * from Cortex-A15 core. + * This file provides desired ordering for Exynos5422: CPU[0123] being the A7. * - * EXYNOS5422 based board files can include this file to provide cpu ordering - * which could boot a cortex-a7 from cpu0. + * The Exynos5420, 5422 and 5800 actually share the same CPU configuration + * but particular boards choose different booting order. + * + * Exynos5420 and Exynos5800 always boot from Cortex-A15. On Exynos5422 + * booting cluster (big or LITTLE) is chosen by IROM code by reading + * the gpg2-1 GPIO. By default all Exynos5422 based boards choose booting + * from the LITTLE: Cortex-A7. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -&cpu0 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x100>; - clock-frequency = <1000000000>; - cci-control-port = <&cci_control0>; -}; +/ { + cpus { + #address-cells = <1>; + #size-cells = <0>; -&cpu1 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x101>; - clock-frequency = <1000000000>; - cci-control-port = <&cci_control0>; -}; + cpu0: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x100>; + clocks = <&clock CLK_KFC_CLK>; + clock-frequency = <1000000000>; + cci-control-port = <&cci_control0>; + operating-points-v2 = <&cluster_a7_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <11>; + #cooling-cells = <2>; /* min followed by max */ + }; -&cpu2 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x102>; - clock-frequency = <1000000000>; - cci-control-port = <&cci_control0>; -}; + cpu1: cpu@101 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x101>; + clock-frequency = <1000000000>; + cci-control-port = <&cci_control0>; + operating-points-v2 = <&cluster_a7_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <11>; + #cooling-cells = <2>; /* min followed by max */ + }; -&cpu3 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x103>; - clock-frequency = <1000000000>; - cci-control-port = <&cci_control0>; -}; + cpu2: cpu@102 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x102>; + clock-frequency = <1000000000>; + cci-control-port = <&cci_control0>; + operating-points-v2 = <&cluster_a7_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <11>; + #cooling-cells = <2>; /* min followed by max */ + }; -&cpu4 { - device_type = "cpu"; - compatible = "arm,cortex-a15"; - reg = <0x0>; - clock-frequency = <1800000000>; - cci-control-port = <&cci_control1>; -}; + cpu3: cpu@103 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x103>; + clock-frequency = <1000000000>; + cci-control-port = <&cci_control0>; + operating-points-v2 = <&cluster_a7_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <11>; + #cooling-cells = <2>; /* min followed by max */ + }; -&cpu5 { - device_type = "cpu"; - compatible = "arm,cortex-a15"; - reg = <0x1>; - clock-frequency = <1800000000>; - cci-control-port = <&cci_control1>; -}; + cpu4: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + clocks = <&clock CLK_ARM_CLK>; + reg = <0x0>; + clock-frequency = <1800000000>; + cci-control-port = <&cci_control1>; + operating-points-v2 = <&cluster_a15_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <15>; + #cooling-cells = <2>; /* min followed by max */ + }; -&cpu6 { - device_type = "cpu"; - compatible = "arm,cortex-a15"; - reg = <0x2>; - clock-frequency = <1800000000>; - cci-control-port = <&cci_control1>; -}; + cpu5: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x1>; + clock-frequency = <1800000000>; + cci-control-port = <&cci_control1>; + operating-points-v2 = <&cluster_a15_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <15>; + #cooling-cells = <2>; /* min followed by max */ + }; + + cpu6: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x2>; + clock-frequency = <1800000000>; + cci-control-port = <&cci_control1>; + operating-points-v2 = <&cluster_a15_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <15>; + #cooling-cells = <2>; /* min followed by max */ + }; -&cpu7 { - device_type = "cpu"; - compatible = "arm,cortex-a15"; - reg = <0x3>; - clock-frequency = <1800000000>; - cci-control-port = <&cci_control1>; + cpu7: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x3>; + clock-frequency = <1800000000>; + cci-control-port = <&cci_control1>; + operating-points-v2 = <&cluster_a15_opp_table>; + cooling-min-level = <0>; + cooling-max-level = <15>; + #cooling-cells = <2>; /* min followed by max */ + }; + }; }; |