bcm2835.dtsi (1368B)
1// SPDX-License-Identifier: GPL-2.0 2#include "bcm283x.dtsi" 3#include "bcm2835-common.dtsi" 4#include "bcm2835-rpi-common.dtsi" 5 6/ { 7 compatible = "brcm,bcm2835"; 8 9 cpus { 10 #address-cells = <1>; 11 #size-cells = <0>; 12 13 cpu@0 { 14 device_type = "cpu"; 15 compatible = "arm,arm1176jzf-s"; 16 reg = <0x0>; 17 /* Source for d/i-cache-line-size and d/i-cache-sets 18 * https://developer.arm.com/documentation/ddi0301 19 * /h/level-one-memory-system/cache-organization?lang=en 20 * 21 * Source for d/i-cache-size 22 * https://forums.raspberrypi.com/viewtopic.php?t=98428 23 * 24 * NOTE: The BCM2835 has a L2 cache but it is dedicated to the GPU 25 * It can be shared with the CPU through fw settings, 26 * but this is not recommended. 27 */ 28 d-cache-size = <0x4000>; 29 d-cache-line-size = <16>; 30 d-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set 31 i-cache-size = <0x4000>; 32 i-cache-line-size = <16>; 33 i-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set 34 }; 35 }; 36 37 soc { 38 ranges = <0x7e000000 0x20000000 0x02000000>; 39 dma-ranges = <0x40000000 0x00000000 0x20000000>; 40 }; 41 42 arm-pmu { 43 compatible = "arm,arm1176-pmu"; 44 }; 45}; 46 47&cpu_thermal { 48 coefficients = <(-538) 407000>; 49}; 50 51/* enable thermal sensor with the correct compatible property set */ 52&thermal { 53 compatible = "brcm,bcm2835-thermal"; 54 status = "okay"; 55};