From patchwork Wed Nov 6 14:53:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomer Maimon X-Patchwork-Id: 1190490 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 477V1J280Nz9sRD for ; Thu, 7 Nov 2019 01:54:28 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730456AbfKFOyQ (ORCPT ); Wed, 6 Nov 2019 09:54:16 -0500 Received: from 212.199.177.27.static.012.net.il ([212.199.177.27]:44065 "EHLO herzl.nuvoton.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727312AbfKFOyQ (ORCPT ); Wed, 6 Nov 2019 09:54:16 -0500 Received: from taln60.nuvoton.co.il (ntil-fw [212.199.177.25]) by herzl.nuvoton.co.il (8.13.8/8.13.8) with ESMTP id xA6ErXWN026782; Wed, 6 Nov 2019 16:53:33 +0200 Received: by taln60.nuvoton.co.il (Postfix, from userid 10070) id CAE1460329; Wed, 6 Nov 2019 16:53:33 +0200 (IST) From: Tomer Maimon To: p.zabel@pengutronix.de, robh+dt@kernel.org, mark.rutland@arm.com, yuenn@google.com, venture@google.com, benjaminfair@google.com, avifishman70@gmail.com, joel@jms.id.au Cc: openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Tomer Maimon Subject: [PATCH v5 1/3] dt-bindings: reset: add NPCM reset controller documentation Date: Wed, 6 Nov 2019 16:53:29 +0200 Message-Id: <20191106145331.25740-2-tmaimon77@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191106145331.25740-1-tmaimon77@gmail.com> References: <20191106145331.25740-1-tmaimon77@gmail.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Added device tree binding documentation for Nuvoton BMC NPCM reset controller. Signed-off-by: Tomer Maimon Reviewed-by: Rob Herring --- .../bindings/reset/nuvoton,npcm-reset.txt | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt diff --git a/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt b/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt new file mode 100644 index 000000000000..6e802703af60 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt @@ -0,0 +1,32 @@ +Nuvoton NPCM Reset controller + +Required properties: +- compatible : "nuvoton,npcm750-reset" for NPCM7XX BMC +- reg : specifies physical base address and size of the register. +- #reset-cells: must be set to 2 + +Optional property: +- nuvoton,sw-reset-number - Contains the software reset number to restart the SoC. + NPCM7xx contain four software reset that represent numbers 1 to 4. + + If 'nuvoton,sw-reset-number' is not specfied software reset is disabled. + +Example: + rstc: rstc@f0801000 { + compatible = "nuvoton,npcm750-reset"; + reg = <0xf0801000 0x70>; + #reset-cells = <2>; + nuvoton,sw-reset-number = <2>; + }; + +Specifying reset lines connected to IP NPCM7XX modules +====================================================== +example: + + spi0: spi@..... { + ... + resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>; + ... + }; + +The index could be found in .