From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: [PATCH/RFC 03/15] ARM: shmobile: r8a7790 dtsi: Add L2 cache-controller nodes Date: Thu, 4 Jun 2015 20:53:29 +0200 Message-ID: <1433444021-22167-4-git-send-email-geert+renesas@glider.be> References: <1433444021-22167-1-git-send-email-geert+renesas@glider.be> Return-path: In-Reply-To: <1433444021-22167-1-git-send-email-geert+renesas@glider.be> Sender: linux-kernel-owner@vger.kernel.org To: Simon Horman , Magnus Damm , "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Lina Iyer , Mark Rutland , Pawel Moll Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-sh@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven List-Id: devicetree@vger.kernel.org Add device nodes for the L2 caches: - The L2 cache for the Cortex-A15 CPU cores is 2 MiB large (organized as 128 KiB x 16 ways), and requires the following settings: - Tag RAM latency: 3 cycles, - Data RAM latency: 4 cycles, - Data RAM setup: 1 cycle, - The L2 cache for the Cortex-A7 CPU cores is 512 KiB large (organized as 64 KiB x 8 ways). Signed-off-by: Geert Uytterhoeven --- What are the DT bindings for a Cortex-A15 L2 cache controller? --- arch/arm/boot/dts/r8a7790.dtsi | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi index 7fbcad087ee384e8..729172090f865e4d 100644 --- a/arch/arm/boot/dts/r8a7790.dtsi +++ b/arch/arm/boot/dts/r8a7790.dtsi @@ -112,6 +112,30 @@ }; }; + L2_CA15: cache-controller@0 { + compatible = "cache"; + + arm,data-latency = <4 4 1>; + arm,tag-latency = <3 3 3>; + cache-unified; + cache-level = <2>; + cache-size = <0x200000>; + cache-sets = <4096>; + cache-block-size = <32>; + cache-line-size = <32>; + }; + + L2_CA7: cache-controller@1 { + compatible = "cache"; + + cache-unified; + cache-level = <2>; + cache-size = <0x80000>; + cache-sets = <2048>; + cache-block-size = <32>; + cache-line-size = <32>; + }; + gic: interrupt-controller@f1001000 { compatible = "arm,cortex-a15-gic"; #interrupt-cells = <3>; -- 1.9.1