From nobody Fri Oct 22 21:05:47 2021 X-Original-To: freebsd-riscv@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 6041418093B4 for ; Fri, 22 Oct 2021 21:05:56 +0000 (UTC) (envelope-from thomas-bsd@skibo.net) Received: from buffalo.birch.relay.mailchannels.net (buffalo.birch.relay.mailchannels.net [23.83.209.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4HbcMR0zwmz3GZv for ; Fri, 22 Oct 2021 21:05:54 +0000 (UTC) (envelope-from thomas-bsd@skibo.net) X-Sender-Id: dreamhost|x-authsender|thomas-bsd@skibo.net Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 5E7692E0CB0 for ; Fri, 22 Oct 2021 21:05:47 +0000 (UTC) Received: from pdx1-sub0-mail-a228 (unknown [127.0.0.6]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 01DF02E17CA for ; Fri, 22 Oct 2021 21:05:46 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|thomas-bsd@skibo.net Received: from pdx1-sub0-mail-a228 (pop.dreamhost.com [64.90.62.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384) by 100.114.196.211 (trex/6.4.3); Fri, 22 Oct 2021 21:05:47 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|thomas-bsd@skibo.net X-MailChannels-Auth-Id: dreamhost X-Cooperative-Cellar: 04205e91323b251b_1634936747244_1459488868 X-MC-Loop-Signature: 1634936747244:2550237781 X-MC-Ingress-Time: 1634936747244 Received: from sherman (unknown [98.207.154.189]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: thomas-bsd@skibo.net) by pdx1-sub0-mail-a228 (Postfix) with ESMTPSA id 4HbcMG4mdmz1N0 for ; Fri, 22 Oct 2021 14:05:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=skibo.net; s=skibo.net; t=1634936746; bh=UUVavvXLn1hVupiwH0GyKX9Q3PM=; h=Date:From:To:Subject:Content-Type; b=S+WNhe0iZVxpo84GVlL5L3twj6Ruc4D9yfBryhh0Yxzz4bfTTKhNINbNYxWQ5r33c MDYyYIrJXlIASTqB1S1UriFqu23G6WOGWoH6LXs4G2YW9Kvw57BpsvVGu40lS08iC1 O0TsXpZI+Ie9PCRDfSpN4klZy2XMM8yAsK54SRok= Date: Fri, 22 Oct 2021 14:05:47 -0700 From: Thomas Skibo To: freebsd-riscv@freebsd.org Subject: i2c driver for SiFive Unmatched Message-ID: List-Id: FreeBSD on the RISC-V instruction set architecture List-Archive: https://lists.freebsd.org/archives/freebsd-riscv List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-riscv@freebsd.org X-BeenThere: freebsd-riscv@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: 4HbcMR0zwmz3GZv X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=skibo.net header.s=skibo.net header.b=S+WNhe0i; dmarc=none; spf=pass (mx1.freebsd.org: domain of thomas-bsd@skibo.net designates 23.83.209.24 as permitted sender) smtp.mailfrom=thomas-bsd@skibo.net X-Spamd-Result: default: False [-3.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCVD_COUNT_FIVE(0.00)[5]; R_DKIM_ALLOW(-0.20)[skibo.net:s=skibo.net]; FROM_HAS_DN(0.00)[]; RWL_MAILSPIKE_GOOD(0.00)[23.83.209.24:from]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:23.83.208.0/20]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-riscv@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; DMARC_NA(0.00)[skibo.net]; DKIM_TRACE(0.00)[skibo.net:+]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCVD_IN_DNSWL_NONE(0.00)[23.83.209.24:from]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:36483, ipnet:23.83.208.0/21, country:CA]; MID_RHS_NOT_FQDN(0.50)[]; RECEIVED_SPAMHAUS_PBL(0.00)[98.207.154.189:received] X-ThisMailContainsUnwantedMimeParts: N Hello. I have the OpenCores i2c driver (dev/iicbus/iicoc.c) up and running on the SiFive Unmatched. It was just a matter of adding the right compatibility strings and implementing iicoc_iicbus_repeated_start() which, oddly, was stubbed out. (Seems to me it should have returned an error if not implemented.) I can put it up on Phabricator if there is interest. Cheers, --Thomas Skibo