From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: [PATCH 1/4] ARM: scu: document Snoop Control Unit DT bindings Date: Thu, 14 May 2015 18:11:04 +0200 Message-ID: <1431619867-14700-2-git-send-email-linus.walleij@linaro.org> References: <1431619867-14700-1-git-send-email-linus.walleij@linaro.org> Return-path: In-Reply-To: <1431619867-14700-1-git-send-email-linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Linus Walleij List-Id: devicetree@vger.kernel.org This adds device tree bindings for the ARM Cortex-A5 and Cortex-A9 Snoop Control Units. Signed-off-by: Linus Walleij --- Several device trees already contain DT nodes for the Cortex-A9 and Cortex-A5 Snoop Control Units, this documents the already existing and used bindings. --- --- Documentation/devicetree/bindings/arm/scu.txt | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/scu.txt diff --git a/Documentation/devicetree/bindings/arm/scu.txt b/Documentation/devicetree/bindings/arm/scu.txt new file mode 100644 index 000000000000..c447680519bb --- /dev/null +++ b/Documentation/devicetree/bindings/arm/scu.txt @@ -0,0 +1,25 @@ +* ARM Snoop Control Unit (SCU) + +As part of the MPCore complex, Cortex-A5 and Cortex-A9 are provided +with a Snoop Control Unit. The register range is usually 256 (0x100) +bytes. + +References: + +- Cortex-A9: see DDI0407E Cortex-A9 MPCore Technical Reference Manual + Revision r2p0 +- Cortex-A5: see DDI0434B Cortex-A5 MPCore Technical Reference Manual + Revision r0p1 + +- compatible : Should be: + "arm,cortex-a9-scu" + "arm,cortex-a5-scu" + +- reg : Specify the base address and the size of the SCU register window. + +Example: + +scu@a04100000 { + compatible = "arm,cortex-a9-scu"; + reg = <0xa0410000 0x100>; +}; -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html