On 17 June 2013 17:14, Tomasz Figa <t.figa@xxxxxxxxxxx> wrote: > -- > Tomasz Figa > Linux Kernel Developer > Samsung R&D Institute Poland > Samsung Electronics > > On Monday 17 of June 2013 16:30:32 Chander Kashyap wrote: >> Add initial device tree nodes for Exynos5420 SoC and SMDK5420 board. >> >> Signed-off-by: Chander Kashyap <chander.kashyap@xxxxxxxxxx> >> --- >> arch/arm/boot/dts/Makefile | 1 + >> arch/arm/boot/dts/exynos5420-smdk5420.dts | 33 +++++++++ >> arch/arm/boot/dts/exynos5420.dtsi | 103 >> +++++++++++++++++++++++++++++ 3 files changed, 137 insertions(+) >> create mode 100644 arch/arm/boot/dts/exynos5420-smdk5420.dts >> create mode 100644 arch/arm/boot/dts/exynos5420.dtsi >> >> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile >> index f0895c5..5efa7e0 100644 >> --- a/arch/arm/boot/dts/Makefile >> +++ b/arch/arm/boot/dts/Makefile >> @@ -57,6 +57,7 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \ >> exynos5440-sd5v1.dtb \ >> exynos5250-smdk5250.dtb \ >> exynos5250-snow.dtb \ >> + exynos5420-smdk5420.dtb \ >> exynos5440-ssdk5440.dtb >> dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb \ >> ecx-2000.dtb >> diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts >> b/arch/arm/boot/dts/exynos5420-smdk5420.dts new file mode 100644 >> index 0000000..d14ece5 >> --- /dev/null >> +++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts >> @@ -0,0 +1,33 @@ >> +/* >> + * SAMSUNG SMDK5420 board device tree source >> + * >> + * Copyright (c) 2013 Samsung Electronics Co., Ltd. >> + * http://www.samsung.com >> + * >> + * 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. >> +*/ >> + >> +/dts-v1/; >> +#include "exynos5420.dtsi" >> + >> +/ { >> + model = "Samsung SMDK5420 board based on EXYNOS5420"; >> + compatible = "samsung,smdk5420", "samsung,exynos5420"; >> + >> + memory { >> + reg = <0x20000000 0x80000000>; >> + }; >> + >> + chosen { >> + bootargs = "console=ttySAC2,115200 init=/linuxrc"; >> + }; >> + >> + fixed-rate-clocks { >> + oscclk { >> + compatible = "samsung,exynos5420-oscclk"; >> + clock-frequency = <24000000>; >> + }; >> + }; >> +}; >> diff --git a/arch/arm/boot/dts/exynos5420.dtsi >> b/arch/arm/boot/dts/exynos5420.dtsi new file mode 100644 >> index 0000000..e865be5 >> --- /dev/null >> +++ b/arch/arm/boot/dts/exynos5420.dtsi >> @@ -0,0 +1,103 @@ >> +/* >> + * SAMSUNG EXYNOS5420 SoC device tree source >> + * >> + * Copyright (c) 2013 Samsung Electronics Co., Ltd. >> + * http://www.samsung.com >> + * >> + * SAMSUNG EXYNOS54200 SoC device nodes are listed in this file. >> + * EXYNOS5420 based board files can include this file and provide >> + * values for board specfic bindings. >> + * >> + * 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. >> + */ >> + >> +#include "exynos5.dtsi" >> +/ { >> + compatible = "samsung,exynos5420"; >> + >> + cpus { >> + #address-cells = <1>; >> + #size-cells = <0>; >> + >> + cpu0: cpu@0 { >> + device_type = "cpu"; >> + compatible = "arm,cortex-a15"; >> + reg = <0x0>; >> + clock-frequency = <800000000>; > > It is the only frequency at which this SoC can run? What code does actually > use this property? Can't this frequency be read by calling clk_get_rate() on > armclk? > This is the max cpu frequency. This property is used in "parse_dt_topology" in arch/arm/kernel/topology.c" to calculate cpu capacity. > Otherwise looks good: > > Reviewed-by: Tomasz Figa <t.figa@xxxxxxxxxxx> > > Best regards, > Tomasz > >> + }; >> + >> + cpu1: cpu@1 { >> + device_type = "cpu"; >> + compatible = "arm,cortex-a15"; >> + reg = <0x1>; >> + clock-frequency = <800000000>; >> + }; >> + >> + cpu2: cpu@2 { >> + device_type = "cpu"; >> + compatible = "arm,cortex-a15"; >> + reg = <0x2>; >> + clock-frequency = <800000000>; >> + }; >> + >> + cpu3: cpu@3 { >> + device_type = "cpu"; >> + compatible = "arm,cortex-a15"; >> + reg = <0x3>; >> + clock-frequency = <800000000>; >> + }; >> + }; >> + >> + clock: clock-controller@0x10010000 { >> + compatible = "samsung,exynos5420-clock"; >> + reg = <0x10010000 0x30000>; >> + #clock-cells = <1>; >> + }; >> + >> + mct@101C0000 { >> + compatible = "samsung,exynos4210-mct"; >> + reg = <0x101C0000 0x800>; >> + interrupt-controller; >> + #interrups-cells = <1>; >> + interrupt-parent = <&mct_map>; >> + interrupts = <0>, <1>, <2>, <3>, <4>, <5>, <6>, <7>; >> + clocks = <&clock 1>, <&clock 315>; >> + clock-names = "fin_pll", "mct"; >> + >> + mct_map: mct-map { >> + #interrupt-cells = <1>; >> + #address-cells = <0>; >> + #size-cells = <0>; >> + interrupt-map = <0 &combiner 23 3>, >> + <1 &combiner 23 4>, >> + <2 &combiner 25 2>, >> + <3 &combiner 25 3>, >> + <4 &gic 0 120 0>, >> + <5 &gic 0 121 0>, >> + <6 &gic 0 122 0>, >> + <7 &gic 0 123 0>; >> + }; >> + }; >> + >> + serial@12C00000 { >> + clocks = <&clock 257>, <&clock 128>; >> + clock-names = "uart", "clk_uart_baud0"; >> + }; >> + >> + serial@12C10000 { >> + clocks = <&clock 258>, <&clock 129>; >> + clock-names = "uart", "clk_uart_baud0"; >> + }; >> + >> + serial@12C20000 { >> + clocks = <&clock 259>, <&clock 130>; >> + clock-names = "uart", "clk_uart_baud0"; >> + }; >> + >> + serial@12C30000 { >> + clocks = <&clock 260>, <&clock 131>; >> + clock-names = "uart", "clk_uart_baud0"; >> + }; >> +}; -- with warm regards, Chander Kashyap -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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