From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754541AbbLOXgG (ORCPT ); Tue, 15 Dec 2015 18:36:06 -0500 Received: from gabe.freedesktop.org ([131.252.210.177]:51796 "EHLO gabe.freedesktop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754493AbbLOXgD (ORCPT ); Tue, 15 Dec 2015 18:36:03 -0500 From: Eric Anholt To: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Stephen Warren , Lee Jones , Florian Fainelli , Stephen Boyd , Mike Turquette , devicetree@vger.kernel.org, Eric Anholt Subject: [PATCH v2 1/3] clk: bcm2835: Add bindings for the auxiliary peripheral clock gates. Date: Tue, 15 Dec 2015 15:35:57 -0800 Message-Id: <1450222559-22461-1-git-send-email-eric@anholt.net> X-Mailer: git-send-email 2.6.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These will be used for enabling UART1, SPI1, and SPI2. Signed-off-by: Eric Anholt --- v2: Make the binding cover both the IRQ and clock enable registers. .../bindings/clock/brcm,bcm2835-aux-clock.txt | 31 ++++++++++++++++++++++ include/dt-bindings/clock/bcm2835-aux.h | 17 ++++++++++++ 2 files changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt create mode 100644 include/dt-bindings/clock/bcm2835-aux.h diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt new file mode 100644 index 0000000..7a837d2 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt @@ -0,0 +1,31 @@ +Broadcom BCM2835 auxiliary peripheral support + +This binding uses the common clock binding: + Documentation/devicetree/bindings/clock/clock-bindings.txt + +The auxiliary peripherals (UART, SPI1, and SPI2) have a small register +area controlling clock gating to the peripherals, and providing an IRQ +status register. + +Required properties: +- compatible: Should be "brcm,bcm2835-aux" +- #clock-cells: Should be <1>. The permitted clock-specifier values can be + found in include/dt-bindings/clock/bcm2835-aux.h +- reg: Specifies base physical address and size of the registers +- clocks: The parent clock phandle + +Example: + + clocks: cprman@7e101000 { + compatible = "brcm,bcm2835-cprman"; + #clock-cells = <1>; + reg = <0x7e101000 0x2000>; + clocks = <&clk_osc>; + }; + + aux: aux@0x7e215004 { + compatible = "brcm,bcm2835-aux"; + #clock-cells = <1>; + reg = <0x7e215000 0x8>; + clocks = <&clocks BCM2835_CLOCK_VPU>; + }; diff --git a/include/dt-bindings/clock/bcm2835-aux.h b/include/dt-bindings/clock/bcm2835-aux.h new file mode 100644 index 0000000..d91156e --- /dev/null +++ b/include/dt-bindings/clock/bcm2835-aux.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2015 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#define BCM2835_AUX_CLOCK_UART 0 +#define BCM2835_AUX_CLOCK_SPI1 1 +#define BCM2835_AUX_CLOCK_SPI2 2 +#define BCM2835_AUX_CLOCK_COUNT 3 -- 2.6.2