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// SPDX-License-Identifier: GPL-2.0
#include "bcm283x.dtsi"
#include "bcm2835-common.dtsi"
/ {
compatible = "brcm,bcm2835";
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "arm,arm1176jzf-s";
reg = <0x0>;
/* Source for d/i-cache-line-size and d/i-cache-sets
* https://developer.arm.com/documentation/ddi0301
* /h/level-one-memory-system/cache-organization?lang=en
*
* Source for d/i-cache-size
* https://forums.raspberrypi.com/viewtopic.php?t=98428
*
* NOTE: The BCM2835 has a L2 cache but it is dedicated to the GPU
* It can be shared with the CPU through fw settings,
* but this is not recommended.
*/
d-cache-size = <0x4000>;
d-cache-line-size = <16>;
d-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set
i-cache-size = <0x4000>;
i-cache-line-size = <16>;
i-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set
};
};
soc {
ranges = <0x7e000000 0x20000000 0x02000000>;
dma-ranges = <0x40000000 0x00000000 0x20000000>;
};
arm-pmu {
compatible = "arm,arm1176-pmu";
};
};
&cpu_thermal {
coefficients = <(-538) 407000>;
};
/* enable thermal sensor with the correct compatible property set */
&thermal {
compatible = "brcm,bcm2835-thermal";
status = "okay";
};
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