1// SPDX-License-Identifier: GPL-2.0 2#include "bcm283x.dtsi" 3#include "bcm2835-common.dtsi" 4 5/ { 6 compatible = "brcm,bcm2835"; 7 8 cpus { 9 #address-cells = <1>; 10 #size-cells = <0>; 11 12 cpu@0 { 13 device_type = "cpu"; 14 compatible = "arm,arm1176jzf-s"; 15 reg = <0x0>; 16 /* Source for d/i-cache-line-size and d/i-cache-sets 17 * https://developer.arm.com/documentation/ddi0301 18 * /h/level-one-memory-system/cache-organization?lang=en 19 * 20 * Source for d/i-cache-size 21 * https://forums.raspberrypi.com/viewtopic.php?t=98428 22 * 23 * NOTE: The BCM2835 has a L2 cache but it is dedicated to the GPU 24 * It can be shared with the CPU through fw settings, 25 * but this is not recommended. 26 */ 27 d-cache-size = <0x4000>; 28 d-cache-line-size = <16>; 29 d-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set 30 i-cache-size = <0x4000>; 31 i-cache-line-size = <16>; 32 i-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set 33 }; 34 }; 35 36 soc { 37 ranges = <0x7e000000 0x20000000 0x02000000>; 38 dma-ranges = <0x40000000 0x00000000 0x20000000>; 39 }; 40 41 arm-pmu { 42 compatible = "arm,arm1176-pmu"; 43 }; 44}; 45 46&cpu_thermal { 47 coefficients = <(-538) 407000>; 48}; 49 50/* enable thermal sensor with the correct compatible property set */ 51&thermal { 52 compatible = "brcm,bcm2835-thermal"; 53 status = "okay"; 54}; 55