From nobody Sat Jun 15 14:03:54 2024 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 4W1dF76rNlz5NrZV for ; Sat, 15 Jun 2024 14:04:43 +0000 (UTC) (envelope-from br@bsdpad.com) Received: from mail.bsdpad.com (mail.bsdpad.com [116.202.106.248]) (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) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4W1dF74YxPz4HgQ for ; Sat, 15 Jun 2024 14:04:43 +0000 (UTC) (envelope-from br@bsdpad.com) Authentication-Results: mx1.freebsd.org; none DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=bsdpad.com; s=20201212; h=Subject:To:From; bh=G80VfiWRiSl/TOfCBXLjoLVOlHVUOGJtLBWKP2jJWjQ=; b=nIa9vYGENsyqfMLbvCrf1W8Czg 4gKAMq2WR3F7fFDpmciBHho9jy9C15xtGZynMzzxSaPTIoP7J83V8H/2hogSX79hzjKyYrSHJFbei 7Nubyhd0b5951PIF1ur5TPQaPOCZqL2/xxvEKNOcFp954pvgBVv06wcHWnVWE35Gx5Ks9FlWCMUyG flzzEpLkPWgHUozz7AqbVUa+SpYG69Qaaxrmo+lMMg0Bx6HeTBSw4KkBizoBRQeopISKwAVWNg+V3 caorxef3YKao7qM+W8YzGIUQ6c+vs4xrU/EwlWPNqUs4JtxZZoYshFUjQme+xZyAefQdIPeh85kUU pyMIiGgg==; Received: from localhost ([127.0.0.1] helo=bsdpad.com) by mail.bsdpad.com with smtp (Exim 4.94 (FreeBSD)) (envelope-from ) id 1sIU0Y-000GXc-7O; Sat, 15 Jun 2024 15:03:54 +0100 Received: by bsdpad.com (nbSMTP-1.00) for uid 1001 br@bsdpad.com; Sat, 15 Jun 2024 15:03:54 +0100 (BST) Date: Sat, 15 Jun 2024 15:03:54 +0100 From: Ruslan Bukin To: Sreenath Battalahalli Cc: freebsd-riscv@freebsd.org Subject: Re: FreeBSD on milk-v duo with CV1800B SOC Message-ID: References: <850956704.6229741.1718441473612.ref@mail.yahoo.com> <850956704.6229741.1718441473612@mail.yahoo.com> 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: X-BeenThere: freebsd-riscv@freebsd.org Sender: owner-freebsd-riscv@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <850956704.6229741.1718441473612@mail.yahoo.com> X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:24940, ipnet:116.202.0.0/16, country:DE] X-Rspamd-Queue-Id: 4W1dF74YxPz4HgQ Hi Sreenath, The work for C906 is in progress. There are plenty chinese chips with c906 core available (e.g. Allwinner D1, ArtInChip D21x, Cvitek etc) so we would like eventually to have some support for them. Note there are newer C907 and C908, example Kendryte K230 with AI accelerator which might be similar in terms of support needed (?). Main issue is that these T-Head cores implement non-standard extensions like non-standard control status registers (e.g. mxstatus), page table entry bits and a cache management subsystem. Ruslan On Sat, Jun 15, 2024 at 08:51:13AM +0000, Sreenath Battalahalli wrote: > Hi all, > has anyone tried freebsd on milk-v duo board? It has CV1800B SOC which has two C906 cores. It has 64 MB Ram. > There are versions of Linux that run on this SOC. > > thanks, > Sreenath >