[PATCH] arm64: dts: k3-j7200: Correct the d-cache-sets info
Kishon Vijay Abraham I
kishon at ti.com
Fri Dec 3 03:26:09 PST 2021
On 13/11/21 8:13 am, Nishanth Menon wrote:
> A72 Cluster (chapter 1.3,1 [1]) has 48KB Icache, 32KB Dcache and 1MB L2 Cache
> - ICache is 3-way set-associative
> - Dcache is 2-way set-associative
> - Line size are 64bytes
>
> 32KB (Dcache)/64 (fixed line length of 64 bytes) = 512 ways
> 512 ways / 2 (Dcache is 2-way per set) = 256 sets.
>
> So, correct the d-cache-sets info.
>
> [1] https://www.ti.com/lit/pdf/spruiu1
>
> Fixes: d361ed88455f ("arm64: dts: ti: Add support for J7200 SoC")
> Reported-by: Peng Fan <peng.fan at nxp.com>
> Signed-off-by: Nishanth Menon <nm at ti.com>
Reviewed-by: Kishon Vijay Abraham I <kishon at ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-j7200.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
> index 47567cb260c2..958587d3a33d 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
> @@ -62,7 +62,7 @@ cpu0: cpu at 0 {
> i-cache-sets = <256>;
> d-cache-size = <0x8000>;
> d-cache-line-size = <64>;
> - d-cache-sets = <128>;
> + d-cache-sets = <256>;
> next-level-cache = <&L2_0>;
> };
>
> @@ -76,7 +76,7 @@ cpu1: cpu at 1 {
> i-cache-sets = <256>;
> d-cache-size = <0x8000>;
> d-cache-line-size = <64>;
> - d-cache-sets = <128>;
> + d-cache-sets = <256>;
> next-level-cache = <&L2_0>;
> };
> };
>
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