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 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4E5E8C4829E for ; Thu, 15 Feb 2024 08:53:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1raXUR-00018n-F6; Thu, 15 Feb 2024 03:53:07 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1raXUP-00016y-Ek; Thu, 15 Feb 2024 03:53:05 -0500 Received: from mail-ed1-x532.google.com ([2a00:1450:4864:20::532]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1raXUN-0004LS-It; Thu, 15 Feb 2024 03:53:05 -0500 Received: by mail-ed1-x532.google.com with SMTP id 4fb4d7f45d1cf-563b7b3e3ecso253065a12.0; Thu, 15 Feb 2024 00:53:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707987181; x=1708591981; darn=nongnu.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=sjLQlaV8w7UBEfwH5YcxubeTHfuUmicctdfDV7dwdTE=; b=m0dL2TZ3Zh68sASdlyaSVN78+ISjysCezBlNnNWtsDT0fJ/XmpccCWungfOsHjc8Oa Nzh/nh3D7XFq41mU5/uFPa38gFUAE4UEddoMXeLdyBKtCuugbMOUEbuWdhgw6PQ3TUOY hv08jOJ7e6Tf0CHwBl1y5CW0lt+LRnLdVeeiOy/gRMTx+bIMslQnSjFalsJEqpPCe43g O9H45eyqAkY49t61UisuW+Rozpr85ck3DJNFWaixYicZEU5VucpNpC0VJ5q3n1nEpYo0 hoP9FdkBCYlFJyjiZ3cVJLZqXiDf2htpEl4Dvl6EDhAI7HujvIYOY7OUCQc3U5QNaJBv DIZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707987181; x=1708591981; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sjLQlaV8w7UBEfwH5YcxubeTHfuUmicctdfDV7dwdTE=; b=XiLWmr8FYewNAHFW/W0H3TzSiPxHmUNa575ZoOcr6ut44G81j+UslrU8Xuxoe5yOO5 0Jt1/dJ0mTDhlo9+27Oo3ls6CzMa+luwI6Pxp0lagBDr4lS4oljd9+TlWKI1sd5quiLG oH09KNoQh24eyjomMQizfve3EohMdOhPJN51TDXxFsYIljVThj4fVPGJtmOgbfA69iwN B9PecUADbqW820Lw9QYucxXWZP1PLdN7TpN6vKyLiAE0MoAf1dFaksc4EdduutgDjn8i Krsxv+5lDjEEUmS2tMt8R+dOoPhyoKv76pTQOWMNePyca+0mqhjLNOpbQTQetj9edduN H7/Q== X-Forwarded-Encrypted: i=1; AJvYcCUxABuh7K2W5co1zpUIdUvUqlJJgin1fLqhPzKVJ6kX4Y3GfUYCbU9+APZDa3x2UMWGWcb497bRU3HaCCzajB+m0kFpwdLtUgyePpTScOAIZN0H8lu5r0oG+q8= X-Gm-Message-State: AOJu0YzsmhxIooxsxcBAFrZru3k4xsTSmSUXCZ9cvj0JKTCZRtSnStAb dbAhsHmM0GWYtOrpdbEopFvjLX427A842MTj9mlDsISgiwDze/RU1ZAMPYWnwzCoK6l8vw7QM2S EVTep2rND2dUITI9tuv0Bvddz4sI= X-Google-Smtp-Source: AGHT+IH7yhDqygGkOBZjlnkkmsPexZmUcnfB7dEfwkq0oNkb8Mx/3sHu4Y/cvB1VlTOY6nBJd+sc2mb0SPki6o27D04= X-Received: by 2002:a50:ee89:0:b0:561:f4e1:8424 with SMTP id f9-20020a50ee89000000b00561f4e18424mr667308edr.42.1707987180975; Thu, 15 Feb 2024 00:53:00 -0800 (PST) MIME-Version: 1.0 References: <7bd858a2-9983-4ddf-8749-09c9b2e261f9@roeck-us.net> <20240215093113.5c58cabe@aktux> <7c8a5c5b-a94a-4b87-a043-f1e398b55872@app.fastmail.com> In-Reply-To: <7c8a5c5b-a94a-4b87-a043-f1e398b55872@app.fastmail.com> From: Dmitry Baryshkov Date: Thu, 15 Feb 2024 10:52:50 +0200 Message-ID: Subject: Re: possible deprecation and removal of some old QEMU Arm machine types (pxa2xx, omap, sa1110) To: Arnd Bergmann Cc: Andreas Kemnade , Linus Walleij , paul.eggleton@linux.intel.com, Andrea Adami , Guenter Roeck , Peter Maydell , QEMU Developers , "open list:ARM TCG CPUs" , Marcin Juszkiewicz , Aaro Koskinen , Janusz Krzysztofik , Tony Lindgren , Linux-OMAP , Daniel Mack , Robert Jarzmik , Haojian Zhuang , Stefan Lehner Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::532; envelope-from=dbaryshkov@gmail.com; helo=mail-ed1-x532.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, 15 Feb 2024 at 10:45, Arnd Bergmann wrote: > > On Thu, Feb 15, 2024, at 09:31, Andreas Kemnade wrote: > > On Wed, 14 Feb 2024 23:42:58 +0100 > > "Arnd Bergmann" wrote: > >> On Wed, Feb 14, 2024, at 13:26, Dmitry Baryshkov wrote: > >> > On Tue, 13 Feb 2024 at 23:22, Linus Walleij wrote: > >> >> On Tue, Feb 13, 2024 at 9:12=E2=80=AFPM Arnd Bergmann wrote: > >> >> > On Tue, Feb 13, 2024, at 16:36, Guenter Roeck wrote: > >> >> > > On Tue, Feb 13, 2024 at 03:14:21PM +0000, Peter Maydell wrote: > >> >> > >> >> Andrea Adami and Dmitry Eremin-Solenikov did the work in 2017 to > >> >> modernize it a bit, and Russell helped out. I was under the impress= ion > >> >> that they only used real hardware though! > >> > > >> > I used both Qemu and actual hardware (having collie, poodle, tosa an= d > >> > c860 that was easy). > >> > > >> > The biggest issue with Zaurus PDAs was that supporting interesting > >> > parts of the platform (PCMCIA, companion chips) required almost > >> > rebootstrapping of the corresponding drivers. > >> > E.g. I had a separate driver for the LoCoMo chip which worked proper= ly > >> > with the DT systems. > >> > PCMCIA was a huuuge trouble and it didn't play well at all. The driv= er > >> > must be rewritten to use the component framework. > >> > >> If we want to actually go there, I think the best option for PCMCIA > >> support is likely to replace the entire "soc_common" pcmcia driver > >> with a simple drivers/pata/ storage driver and no support for > >> other cards. There was a driver until commit 38943cbd25a2 > >> ("ata: remove palmld pata driver") that could serve as an > >> template. > >> > > hmm, main usage for PCMCIA/CF in those devices was often something else= , > > not storage, at least on the IPAQ h2200. Wondering wether that road is > > actually good. When I was mainly using those devices, I was not good in > > mainlining things. > > Do we still support any non-storage CF devices that someone might > actually use? Do you have a specific example in mind? These are > the currently supported devices that I see: The Bluetooth over the PCMCIA UART worked last time I checked it and according to your grep it is still a valid user. If we are talking about re-bootstrap of the PCMCIA subsystem, hostap and orinoco come to my mind. We dropped those drivers a while ago, but back at that time they were very useful. Also I had the out-of-tree driver for Sharp 0.3 MP cameras using CF interface (yeah, sure, all of those are out-of-tree nowadays). > > git grep -B4 -w depends.*PCMCIA | grep "Kconfig-\(config\|menuconfig\)" |= grep -v ^drivers/pcmcia > drivers/ata/Kconfig-config PATA_PCMCIA > drivers/bluetooth/Kconfig-config BT_HCIDTL1 > drivers/bluetooth/Kconfig-config BT_HCIBT3C > drivers/bluetooth/Kconfig-config BT_HCIBLUECARD > drivers/comedi/Kconfig-menuconfig COMEDI_PCMCIA_DRIVERS > drivers/mmc/host/Kconfig-config MMC_SDRICOH_CS > drivers/mtd/maps/Kconfig-config MTD_PCMCIA > drivers/mtd/maps/Kconfig-config MTD_PCMCIA_ANONYMOUS > drivers/net/arcnet/Kconfig-menuconfig ARCNET > drivers/net/arcnet/Kconfig-config ARCNET_COM20020_CS > drivers/net/can/sja1000/Kconfig-config CAN_EMS_PCMCIA > drivers/net/can/sja1000/Kconfig-config CAN_PEAK_PCMCIA > drivers/net/can/softing/Kconfig-config CAN_SOFTING_CS > drivers/net/ethernet/3com/Kconfig-config NET_VENDOR_3COM > drivers/net/ethernet/3com/Kconfig-config PCMCIA_3C574 > drivers/net/ethernet/3com/Kconfig-config PCMCIA_3C589 > drivers/net/ethernet/8390/Kconfig-config PCMCIA_AXNET > drivers/net/ethernet/8390/Kconfig-config APNE > drivers/net/ethernet/8390/Kconfig-config PCMCIA_PCNET > drivers/net/ethernet/amd/Kconfig-config PCMCIA_NMCLAN > drivers/net/ethernet/fujitsu/Kconfig-config NET_VENDOR_FUJITSU > drivers/net/ethernet/fujitsu/Kconfig-config PCMCIA_FMVJ18X > drivers/net/ethernet/smsc/Kconfig-config PCMCIA_SMC91C92 > drivers/net/ethernet/xircom/Kconfig-config NET_VENDOR_XIRCOM > drivers/net/ethernet/xircom/Kconfig-config PCMCIA_XIRC2PS > drivers/parport/Kconfig-config PARPORT_PC_PCMCIA > drivers/scsi/pcmcia/Kconfig-menuconfig SCSI_LOWLEVEL_PCMCIA > drivers/ssb/Kconfig-config SSB_PCMCIAHOST_POSSIBLE > drivers/tty/Kconfig-config IPWIRELESS > drivers/tty/serial/8250/Kconfig-config SERIAL_8250_CS > drivers/usb/host/Kconfig-config USB_SL811_CS > sound/pcmcia/Kconfig-menuconfig SND_PCMCIA > > Arnd --=20 With best wishes Dmitry