From patchwork Tue Jun 24 03:58:43 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: addy ke X-Patchwork-Id: 4406231 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 3AA85BEEAA for ; Tue, 24 Jun 2014 04:06:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5EDAB2034B for ; Tue, 24 Jun 2014 04:06:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C818202FE for ; Tue, 24 Jun 2014 04:06:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751360AbaFXEFJ (ORCPT ); Tue, 24 Jun 2014 00:05:09 -0400 Received: from regular2.263xmail.com ([211.157.152.4]:53631 "EHLO regular2.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750712AbaFXEFI (ORCPT ); Tue, 24 Jun 2014 00:05:08 -0400 Received: from regular1.263xmail.com (unknown [192.168.165.184]) by regular2.263xmail.com (Postfix) with ESMTP id 0414318B9C1; Tue, 24 Jun 2014 11:59:21 +0800 (CST) Received: from addy.ke?rock-chips.com (unknown [192.168.165.39]) by regular1.263xmail.com (Postfix) with SMTP id 91C19309C; Tue, 24 Jun 2014 11:59:01 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ABS-CHECKED: 4 X-KSVirus-check: 0 Received: from addy-vm.localdomain (bj-e2-smtpcom10 [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id EED6F452F; Tue, 24 Jun 2014 11:58:59 +0800 (CST) X-RL-SENDER: addy.ke@rock-chips.com X-SENDER-IP: 127.0.0.1 X-LOGIN-NAME: addy.ke@rock-chips.com X-UNIQUE-TAG: <49c2d1b0cff58d33cf93caf4329a421d> X-ATTACHMENT-NUM: 0 X-SENDER: kfx@rock-chips.com X-DNS-TYPE: 1 Received: from unknown (localhost [127.0.0.1]) by smtp.263.net (Postfix) whith SMTP id 5204LJFNNB; Tue, 24 Jun 2014 11:58:59 +0800 (CST) From: addy ke To: broonie@kernel.org, heiko@sntech.de, grant.likely@linaro.org, robh+dt@kernel.org Cc: linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, olof@lixom.net, hj@rock-chips.com, kever.yang@rock-chips.com, xjq@rock-chips.com, huangtao@rock-chips.com, zyw@rock-chips.com, yzq@rock-chips.com, zhenfu.fang@rock-chips.com, cf@rock-chips.com, addy ke Subject: [PATCH 1/2] documentation: add rockchip spi documentation Date: Tue, 24 Jun 2014 11:58:43 +0800 Message-Id: <1403582324-9485-2-git-send-email-addy.ke@rock-chips.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1403582324-9485-1-git-send-email-addy.ke@rock-chips.com> References: <1403582324-9485-1-git-send-email-addy.ke@rock-chips.com> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: addy ke --- .../devicetree/bindings/spi/spi-rockchip.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-rockchip.txt diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.txt b/Documentation/devicetree/bindings/spi/spi-rockchip.txt new file mode 100644 index 0000000..ce9c881 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-rockchip.txt @@ -0,0 +1,51 @@ +* Rockchip SPI Controller + +The Rockchip SPI controller is used to interface with various devices such as flash +and display controllers using the SPI communication interface. + +Required SoC Specific Properties: + +- compatible: should be one of the following. + - rockchip,rk3066-spi: for rk3066, rk3188 and rk3288 platforms. +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: The interrupt number to the cpu. The interrupt specifier format + depends on the interrupt controller. +- clocks: Must contain an entry for each entry in clock-names. +- clock-names: Shall be "spiclk" for the transfer-clock, and "apb_pclk" for + the peripheral clock. + +Optional properties: +- dmas: DMA specifiers for tx and rx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: DMA request names should include "tx" and "rx" if present. + +Example: + +- SoC Specific Portion: + + spi0: spi@ff110000 { + compatible = "rockchip,rockchip-spi"; + reg = <0xff110000 0x1000>; + dmas = <&pdma1 11>, <&pdma1 12>; + dma-names = "tx", "rx"; + #address-cells = <1>; + #size-cells = <0>; + interrupts = ; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_clk &spi0_tx &spi0_rx &spi0_cs0 &spi0_cs1>; + clocks = <&cru SCLK_SPI0>, <&cru PCLK_SPI0>; + clock-names = "spiclk", "apb_pclk"; + status = "disabled"; + }; + +- Board Specific Portion: + + &spi0 { + status = "okay"; + spi_test@00 { + compatible = "rockchip,spi_test"; + reg = <0>; + spi-max-frequency = <24000000>; + }; + };