From nobody Fri Aug 1 12:37:11 2025 X-Original-To: dev-commits-src-main@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 4btlp02BvCz63r5F; Fri, 01 Aug 2025 12:37:12 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4btlnz3mshz3Plt; Fri, 01 Aug 2025 12:37:11 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1754051831; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=VUb4aWDq+OfXgCzPZzJoPkmpDEO9L+t3GptYpke9Zw8=; b=cgNIKMVXm83yq5w4Zc4CIwQw0Wc8peh88Qzwcuif6IFB8Ii73UWjzIVAJJVRmwq21MY2zb KL9D8Vpqs2UIjaKrR6kBUQGmg02McVnvG7L+eOuwnFh8cMD3TTV6HNkO7pM/fAWuJQl03e LEakSMkaFZpyv91bEYu7xi2UQujR/VfKWs98aShbX7zCgklNO4/CHvPW0UoNeky/OOuchR 1NVaM5ZoS8tfDO97xOWm76DNc3UIi3MxRmbIJmpqyqgPubHkF5+IvN1R2PT0kB8dtMHzfz jwaWW9s34cVSI1MnVrcht4R+ho+pl7TPQQdCqKR9oBsGbYkc9rgLTBUvztT9KA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1754051831; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=VUb4aWDq+OfXgCzPZzJoPkmpDEO9L+t3GptYpke9Zw8=; b=BfsKVDTMYVUGE3pDdfrbnHvK3cWfCha4ffhQaGnypDb6Oexs50akMjP1YbDPwPa0bLKhDa gq20GvJl0t9GEecl9mDg1CMYt9+mjgNd2wpXwpSGHGfFhKH5o2Bmfu0pR9PGNVS3NUhQ3P MyKJ4RAL1q3CoNXSRy+1jVQW7yoMkaiCwChPmif0g9LNIcrEcrc6pUDt0z/m7vRDtBJUn6 8nsHbtaS71hCAv3gTwPHESyUZ9h01gUOPYRua8Qex7rS6y2nhjfVDhn+0ZIEuOr82uTEhf aXv5MDRsHZxaUjYz+bscrFMytosU+LQauW8ZqmAb6KBE6xG/EoVekMS3rBrhNQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1754051831; a=rsa-sha256; cv=none; b=aN42KWiUHSaqadE4wYc7gPh9yAJNkr4uach7TiqyA+enPPrh+DmkYwwbDaN7yrKiWrRjEC ZYdKyE9ETeLBAtTyQhk3lDN98B6G5Y4XTSSLErm5gkCUvgar2UdjZvNMWhQatW8O9XX0ax BiIDmdAy6aGbCeX6Dxwq5ruMVzf8kaMbcNbWDlrgWvEtytLTVJPb2BidtLm1NRlfzBe2fd hPL7oXWGBp3wXAcpuH5U7bh0lt40mGGF0elS2+dFy2bzE25xrfXsjkTZdZ14W9kDHZ/63v 6ITgpA8MFKXPm/60pqwzdGvCQERZg4Je3sQbrmij63y60s01HBcwSckKZxObrA== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4btlnz3N7vznqq; Fri, 01 Aug 2025 12:37:11 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 571CbBBx052031; Fri, 1 Aug 2025 12:37:11 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 571CbBc4052028; Fri, 1 Aug 2025 12:37:11 GMT (envelope-from git) Date: Fri, 1 Aug 2025 12:37:11 GMT Message-Id: <202508011237.571CbBc4052028@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Bojan =?utf-8?Q?Novkovi=C4=87?= Subject: git: 25b9b0b6bec9 - main - riscv: Add driver for cvitek reset controller List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: bnovkov X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 25b9b0b6bec9b4a382a16586a6eb8e57944e8d25 Auto-Submitted: auto-generated The branch main has been updated by bnovkov: URL: https://cgit.FreeBSD.org/src/commit/?id=25b9b0b6bec9b4a382a16586a6eb8e57944e8d25 commit 25b9b0b6bec9b4a382a16586a6eb8e57944e8d25 Author: Bojan Novković AuthorDate: 2025-01-18 19:11:14 +0000 Commit: Bojan Novković CommitDate: 2025-08-01 12:35:54 +0000 riscv: Add driver for cvitek reset controller This patch adds support for the cvitek reset controller. This controller is present on the Milk-V riscv SoCs. The controller is currently only used by the if_dwc driver. Differential Revision: https://reviews.freebsd.org/D48531 Reviewed by: jrtc27, br --- sys/riscv/cvitek/cvitek_reset.c | 132 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) diff --git a/sys/riscv/cvitek/cvitek_reset.c b/sys/riscv/cvitek/cvitek_reset.c new file mode 100644 index 000000000000..348bbc85c9a9 --- /dev/null +++ b/sys/riscv/cvitek/cvitek_reset.c @@ -0,0 +1,132 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2025 Bojan Novković +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "syscon_if.h" +#include "hwreset_if.h" + +struct cvitek_reset_softc { + device_t dev; + struct mtx mtx; + struct syscon *syscon; +}; + +static int +cvitek_reset_probe(device_t dev) +{ + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (ofw_bus_is_compatible(dev, "cvitek,reset")) { + device_set_desc(dev, "CVITEK reset controller"); + return (BUS_PROBE_DEFAULT); + } + + return (ENXIO); +} + +static int +cvitek_reset_attach(device_t dev) +{ + struct cvitek_reset_softc *sc; + int error; + + sc = device_get_softc(dev); + sc->dev = dev; + + error = syscon_get_by_ofw_property(dev, ofw_bus_get_node(dev), + "syscon", &sc->syscon); + if (error != 0) { + device_printf(dev, "Couldn't get syscon handle\n"); + return (error); + } + mtx_init(&sc->mtx, device_get_nameunit(sc->dev), NULL, MTX_DEF); + + hwreset_register_ofw_provider(dev); + + return (0); +} + +static int +cvitek_reset_assert(device_t dev, intptr_t id, bool reset) +{ + struct cvitek_reset_softc *sc; + uint32_t offset, val; + uint32_t bit; + + sc = device_get_softc(dev); + bit = id % 32; + offset = id / 32; + + mtx_lock(&sc->mtx); + val = SYSCON_READ_4(sc->syscon, offset); + if (reset) + val &= ~(1 << bit); + else + val |= (1 << bit); + SYSCON_WRITE_4(sc->syscon, offset, val); + mtx_unlock(&sc->mtx); + + return (0); +} + +static device_method_t cvitek_reset_methods[] = { + DEVMETHOD(device_probe, cvitek_reset_probe), + DEVMETHOD(device_attach, cvitek_reset_attach), + + DEVMETHOD(hwreset_assert, cvitek_reset_assert), + + DEVMETHOD_END +}; + +static driver_t cvitek_reset_driver = { + "cvitek_reset", + cvitek_reset_methods, + sizeof(struct cvitek_reset_softc) +}; + +DRIVER_MODULE(cvitek_reset, simplebus, cvitek_reset_driver, 0, 0);