diff options
Diffstat (limited to 'dts/src/arm/bcm2835.dtsi')
| -rw-r--r-- | dts/src/arm/bcm2835.dtsi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/dts/src/arm/bcm2835.dtsi b/dts/src/arm/bcm2835.dtsi index 0549686134..1c90e5a442 100644 --- a/dts/src/arm/bcm2835.dtsi +++ b/dts/src/arm/bcm2835.dtsi @@ -14,6 +14,23 @@ 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 }; }; |