From patchwork Thu Aug 28 06:56:12 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 4799351 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 80E9C9F375 for ; Thu, 28 Aug 2014 08:33:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 81E2D20145 for ; Thu, 28 Aug 2014 08:33:42 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A0F442012E for ; Thu, 28 Aug 2014 08:33:41 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id AFCAB155A; Thu, 28 Aug 2014 07:34:24 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id B78B114D5 for ; Thu, 28 Aug 2014 07:34:14 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from kirsty.vergenet.net (kirsty.vergenet.net [202.4.237.240]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 49E5F201B4 for ; Thu, 28 Aug 2014 07:34:14 +0000 (UTC) Received: from ayumi.isobedori.kobe.vergenet.net (p4222-ipbfp1605kobeminato.hyogo.ocn.ne.jp [114.154.95.222]) by kirsty.vergenet.net (Postfix) with ESMTP id C0F9926723A; Thu, 28 Aug 2014 17:08:01 +1000 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id 433F2EDE709; Thu, 28 Aug 2014 16:08:00 +0900 (JST) From: Simon Horman To: ltsi-dev@lists.linuxfoundation.org Date: Thu, 28 Aug 2014 15:56:12 +0900 Message-Id: <1409209620-24487-247-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1409209620-24487-1-git-send-email-horms+renesas@verge.net.au> References: <1409209620-24487-1-git-send-email-horms+renesas@verge.net.au> X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 Cc: Magnus Damm Subject: [LTSI-dev] [PATCH LTSI-3.14 246/894] serial: sh-sci: Add device tree support for r8a7779 X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP According to the platform data for the legacy-C initialisation of sh-sci for the r8a7779 SoC and my own testing the SCIx_SH4_SCIF_REGTYPE bit of scscr needs to be set. Signed-off-by: Simon Horman Signed-off-by: Greg Kroah-Hartman (cherry picked from commit fcbee4d49f30eb0eaa83a62e6a3cab5a892ed93f) Signed-off-by: Simon Horman --- .../devicetree/bindings/serial/renesas,sci-serial.txt | 1 + drivers/tty/serial/sh-sci.c | 10 +++++++++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index 53e6c17..bba86de 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -12,6 +12,7 @@ Required properties: - "renesas,scifa-r8a7791" for R8A7791 (R-Car M2) SCIFA compatible UART. - "renesas,scifb-r8a7791" for R8A7791 (R-Car M2) SCIFB compatible UART. - "renesas,hscif-r8a7791" for R8A7791 (R-Car M2) HSCIF compatible UART. + - "renesas,scif-r8a7779" for R8A7779 (R-Car H1) SCIF compatible UART. - "renesas,scif" for generic SCIF compatible UART. - "renesas,scifa" for generic SCIFA compatible UART. - "renesas,scifb" for generic SCIFB compatible UART. diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 88236da..3b5d2f6 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -2419,6 +2419,7 @@ static int sci_remove(struct platform_device *dev) struct sci_port_info { unsigned int type; unsigned int regtype; + unsigned int scscr_extra; }; static const struct of_device_id of_sci_match[] = { @@ -2429,6 +2430,13 @@ static const struct of_device_id of_sci_match[] = { .regtype = SCIx_SH4_SCIF_REGTYPE, }, }, { + .compatible = "renesas,scif-r8a7779", + .data = (void *)&(const struct sci_port_info) { + .type = PORT_SCIF, + .regtype = SCIx_SH4_SCIF_REGTYPE, + .scscr_extra = SCSCR_CKE1, + }, + }, { .compatible = "renesas,scifa", .data = &(const struct sci_port_info) { .type = PORT_SCIFA, @@ -2488,7 +2496,7 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id) p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF; p->type = info->type; p->regtype = info->regtype; - p->scscr = SCSCR_RE | SCSCR_TE; + p->scscr = SCSCR_RE | SCSCR_TE | info->scscr_extra; return p; }