From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC66BC43461 for ; Wed, 16 Sep 2020 17:51:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 77DFA20732 for ; Wed, 16 Sep 2020 17:51:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600278716; bh=pPUgbT/wwB5fs/iEkEr+6agPdJjMGS9hSRFucHUfBvg=; h=Subject:To:From:Date:List-ID:From; b=uPdar2v7wW9GuzTxoUq1Crr+dvNcyUbJwOy1/GakMPh3jAB/WJvbINCM85bAfv7mX lndvK6fWDqfoXsbWEb2b/moCv898tfok01LUTJwL3wDj8hQpwJIgmvK27Qe7S2mUGp vLgJtQhhd3SU0npGfQXnfzZcKHfW+yn56qVJmKwU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727337AbgIPRvQ (ORCPT ); Wed, 16 Sep 2020 13:51:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:42056 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727561AbgIPRvI (ORCPT ); Wed, 16 Sep 2020 13:51:08 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F379F21974; Wed, 16 Sep 2020 11:23:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600255407; bh=pPUgbT/wwB5fs/iEkEr+6agPdJjMGS9hSRFucHUfBvg=; h=Subject:To:From:Date:From; b=XrOdmatdveT5X2a/g2B5vX37DXjS4+s/UyEXpAM3MdbHB6l1h6V2LsbONUUrGi4oL 611jw1d+tSBme8Zu1YTsBaYAn4odgGH7Y4BmPoHPYBTTpFllBnBsN3RzizfqPvjwBu Wuy+RTcBJUPiQcVAc87fLDDfjbL9rObt+cxeAI+o= Subject: patch "serial: 8250_pci: Add Realtek 816a and 816b" added to tty-linus To: tobiasdiedrich@gmail.com, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Wed, 16 Sep 2020 13:23:59 +0200 Message-ID: <160025543941103@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled serial: 8250_pci: Add Realtek 816a and 816b to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 3c5a87be170aba8ac40982182f812dcff6ed1ad1 Mon Sep 17 00:00:00 2001 From: Tobias Diedrich Date: Mon, 14 Sep 2020 19:36:28 +0200 Subject: serial: 8250_pci: Add Realtek 816a and 816b These serial ports are exposed by the OOB-management-engine on RealManage-enabled network cards (e.g. AMD DASH enabled systems using Realtek cards). Because these have 3 BARs, they fail the "num_iomem <= 1" check in serial_pci_guess_board. I've manually checked the two IOMEM regions and BAR 2 doesn't seem to respond to reads, but BAR 4 seems to be an MMIO version of the IO ports (untested). With this change, the ports are detected: 0000:02:00.1: ttyS0 at I/O 0x2200 (irq = 82, base_baud = 115200) is a 16550A 0000:02:00.2: ttyS1 at I/O 0x2100 (irq = 55, base_baud = 115200) is a 16550A lspci output: 02:00.1 0700: 10ec:816a (rev 0e) (prog-if 02 [16550]) Subsystem: 17aa:5082 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ SERR- Cc: stable Link: https://lore.kernel.org/r/20200914173628.GA22508@yamamaya.is-a-geek.org Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_pci.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 3eb2d485eaeb..55bb7b897d97 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -5566,6 +5566,17 @@ static const struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_wch384_4 }, + /* + * Realtek RealManage + */ + { PCI_VENDOR_ID_REALTEK, 0x816a, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_1_115200 }, + + { PCI_VENDOR_ID_REALTEK, 0x816b, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_1_115200 }, + /* Fintek PCI serial cards */ { PCI_DEVICE(0x1c29, 0x1104), .driver_data = pbn_fintek_4 }, { PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 }, -- 2.28.0