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linux/Documentation/devicetree/bindings/cache/freescale-l2cache.txt
Conor Dooley dc8ea9204b dt-bindings: move cache controller bindings to a cache directory
There's a bunch of bindings for (mostly l2) cache controllers
scattered to the four winds, move them to a common directory.
I renamed the freescale l2cache.txt file, as while that might make sense
when the parent dir is fsl, it's confusing after the move.
The two Marvell bindings have had a "marvell," prefix added to match
their compatibles.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230330173255.109731-1-conor@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2023-04-04 12:12:13 -05:00

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Freescale L2 Cache Controller
L2 cache is present in Freescale's QorIQ and QorIQ Qonverge platforms.
The cache bindings explained below are Devicetree Specification compliant
Required Properties:
- compatible : Should include one of the following:
"fsl,b4420-l2-cache-controller"
"fsl,b4860-l2-cache-controller"
"fsl,bsc9131-l2-cache-controller"
"fsl,bsc9132-l2-cache-controller"
"fsl,c293-l2-cache-controller"
"fsl,mpc8536-l2-cache-controller"
"fsl,mpc8540-l2-cache-controller"
"fsl,mpc8541-l2-cache-controller"
"fsl,mpc8544-l2-cache-controller"
"fsl,mpc8548-l2-cache-controller"
"fsl,mpc8555-l2-cache-controller"
"fsl,mpc8560-l2-cache-controller"
"fsl,mpc8568-l2-cache-controller"
"fsl,mpc8569-l2-cache-controller"
"fsl,mpc8572-l2-cache-controller"
"fsl,p1010-l2-cache-controller"
"fsl,p1011-l2-cache-controller"
"fsl,p1012-l2-cache-controller"
"fsl,p1013-l2-cache-controller"
"fsl,p1014-l2-cache-controller"
"fsl,p1015-l2-cache-controller"
"fsl,p1016-l2-cache-controller"
"fsl,p1020-l2-cache-controller"
"fsl,p1021-l2-cache-controller"
"fsl,p1022-l2-cache-controller"
"fsl,p1023-l2-cache-controller"
"fsl,p1024-l2-cache-controller"
"fsl,p1025-l2-cache-controller"
"fsl,p2010-l2-cache-controller"
"fsl,p2020-l2-cache-controller"
"fsl,t2080-l2-cache-controller"
"fsl,t4240-l2-cache-controller"
and "cache".
- reg : Address and size of L2 cache controller registers
- cache-size : Size of the entire L2 cache
- interrupts : Error interrupt of L2 controller
- cache-line-size : Size of L2 cache lines
Example:
L2: l2-cache-controller@20000 {
compatible = "fsl,bsc9132-l2-cache-controller", "cache";
reg = <0x20000 0x1000>;
cache-line-size = <32>; // 32 bytes
cache-size = <0x40000>; // L2,256K
interrupts = <16 2 1 0>;
};