From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f42.google.com (mail-lf1-f42.google.com [209.85.167.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7530422EF5 for ; Tue, 21 May 2024 17:56:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.42 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716314174; cv=none; b=AkJamKdAwvuLfvxxqYgpXIZrNBDrLlfmqp0kzyzbrJdhHGwzhoW5apRlC95bCgFlsQyAtLtr16MMsBgqks0DJEjTBiVKU2HmFqGZZuGy67BkXyGLqXT8NwQBC2oJXL/ZoaIsgdJCM88pTf1mmtf8oPR68r6NvwdxHuXKlr+nLkQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716314174; c=relaxed/simple; bh=XxPhAG/yUX/Nm9mPnElOYLCHns35AbOgFuFWGxjfiec=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MCiWIVV8N8UmR3C49uoGHQiGOCHdc09KuQvRS9Zy5ZRtS7EGwEYO4Gw7ADNvP62zqwlByVnpsGBaq5Lms7PCowP405Bt8ARofOZ3ihE5b30G7vYkG0UzcRKF4OehONrRGHQmVs7wFdTTNd7BD9MHUCHxJxRNG9mHJTTJbiSxubg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=WfKKECQJ; arc=none smtp.client-ip=209.85.167.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WfKKECQJ" Received: by mail-lf1-f42.google.com with SMTP id 2adb3069b0e04-51f57713684so7077625e87.1 for ; Tue, 21 May 2024 10:56:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1716314170; x=1716918970; darn=lists.linux-m68k.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=EDsYH6HyF+sWoSVFGtSmBJpMKqFo1LKGRA9gKjomjMw=; b=WfKKECQJQwnPPLPW022AqlrjsmM8sdr84KxIXWVgs8a2o/Z+XlAIo8MRML/CBFyTfT k4COp86A3FfqU8fB8Z49j+lVbrf8I21iMl5UrnqZd/oVIuiwfMFt9EB4gmF663dG/cBq NJtFDwbelqUsGrPQFWmUTfUYjIIlG/CW08GWFmpk3vNHQnKPS3TZw7gjSAsM8owTAe/a TO1dgH3cAbampcHOzQEwXUehbauJ5uAnWSPVlBwHHac23O9IDrw//hhwducJ1lOXrxka gZIviKHVZul64suG89MjtZKurkk3ha+CgyhZmVn1Mevh0eeeBPtWfAgbHHsuVhYL/9M9 VVLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716314170; x=1716918970; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=EDsYH6HyF+sWoSVFGtSmBJpMKqFo1LKGRA9gKjomjMw=; b=rO5sU6swth5keyfDDt0FPM9CI54pOl7TwgdPFfATegjDLFq+VC2SexxIH8b89eX6CD vt5f6Ml6BNaXR0kR36Et9WjC5WjoVo/GLOYJeQW2xfeV5KswONJnrjGzdCYczlkCiWlH NdCHuEo5PFCdTZKkNIOyDf52XGdjW8QOAglazfhm7TbtnaGknhIAmQkq0OKyrfb9YL7V zOs6ODdWo/HPFHXCoeGm2P8/Xy2IvLG4YuUJ5WcuZEIFYq7nIfz+hCRI8KKeEa6M9KZR 0R04xKEz6N7nXaAtGxFN6Hju/ejLjh7W3Wh64w11VjkkCzj5Knf683ozZvZNunuGa2KN fExA== X-Forwarded-Encrypted: i=1; AJvYcCWJ0ZTbOKgaZC1zyg9RJG491xmNtnKZTamwyXdZW5lXnThCwno0wSR/0puKJBmIGaf0Y78HLedFn0uHLDUPqPEhRcZsTh54AH0Nen22jdwg X-Gm-Message-State: AOJu0YxFq5RG5zsKsh9C6ao5f1fpvXadkFqa/Lmw8vwecq4/EkJgmC73 cGzqTAmjNQl5cdO7vHAMadeqL/2NaqF76Ci5QMB9gax45ReBbqGX X-Google-Smtp-Source: AGHT+IHhmYkBBu8dH6iINCXts2Ok4GpuOMIC1HUc/Pw8wHYrhbrn+/h3P2um5SK2dHIV9F9PV6jJuQ== X-Received: by 2002:ac2:41d3:0:b0:51c:fd0a:7e34 with SMTP id 2adb3069b0e04-5220fb72d61mr18620991e87.22.1716314170098; Tue, 21 May 2024 10:56:10 -0700 (PDT) Received: from gmail.com ([2a01:e11:1403:8620:29ba:62b8:5a03:da92]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5733becfde7sm16940089a12.48.2024.05.21.10.56.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 May 2024 10:56:09 -0700 (PDT) Date: Tue, 21 May 2024 19:56:08 +0200 From: Paolo Pisati To: Geert Uytterhoeven Cc: Michael Schmitz , Paolo Pisati , linux-m68k , warp@cs-lab.eu Subject: Re: Amiga, serial and SYSRQ Message-ID: References: <3f1fc752-52c1-4b00-aaef-b917be083718@gmail.com> Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, May 21, 2024 at 09:07:33AM +0200, Geert Uytterhoeven wrote: > > I guess the system would boot if you hack arch/m68k/amiga/amiints.c > to never enable IRQ_AMIGA_PORTS in amiga_custom.intena, but then you > would also lose the ability to use e.g. the builtin A1200 IDE. You probably meant arch/m68k/amiga/cia.c since: diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index b9aee983e6f4..89dc2e8a2965 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -150,6 +150,7 @@ static void auto_irq_enable(struct irq_data *data) { switch (data->irq) { case IRQ_AUTO_2: + break; amiga_custom.intena = IF_SETCLR | IF_PORTS; break; case IRQ_AUTO_6: made my system finally boot: https://dpaste.org/ZnYP5 It's definitely $something of the Warp1260 board triggering that interrupt, and we need a way to disable it. > Reverse-engineering the AmigaOS interrupt handlers for the board may > also help. I hope the board manufacturer is willing to help us out here (added them in cc:) - but just in case, i read a bit about Amiga interrupts today, and it appears i'll have to disassemble the handler starting from $6c($VBR). -- bye, p.