kernel/ARM-dts-bcm2711-Add-pcie0-a...

125 lines
5.9 KiB
Diff

From patchwork Wed Feb 26 16:46:00 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
X-Patchwork-Id: 11406785
Return-Path:
<SRS0=yLUK=4O=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org>
Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org
[172.30.200.123])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5061A14D5
for <patchwork-linux-arm@patchwork.kernel.org>;
Wed, 26 Feb 2020 16:46:12 +0000 (UTC)
Received: from bombadil.infradead.org (bombadil.infradead.org
[198.137.202.133])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mail.kernel.org (Postfix) with ESMTPS id 21BE02467B
for <patchwork-linux-arm@patchwork.kernel.org>;
Wed, 26 Feb 2020 16:46:12 +0000 (UTC)
Authentication-Results: mail.kernel.org;
dkim=pass (2048-bit key) header.d=lists.infradead.org
header.i=@lists.infradead.org header.b="RPmxQfRT"
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 21BE02467B
Authentication-Results: mail.kernel.org;
dmarc=none (p=none dis=none) header.from=suse.de
Authentication-Results: mail.kernel.org;
spf=none
smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=lists.infradead.org; s=bombadil.20170209; h=Sender:
Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:
List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To
:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:
Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:
List-Owner; bh=/laokypJf/mRKnVsqKtsrE1gtT0IoKXyaLuXWkzUAxk=; b=RPmxQfRTCJJYvt
t/L1K7smMWF4bh+qlDYzm3zNPidTCgwCNQPZyIyT/OP8HPY/wbbZiojEjKfGKGI+33ibSpwuJqICI
/CvzPmGguzjeWLqJ2SZSpNBnVGnHM6zPj2X7E/Dl7SSmDXilKJMvUY5fEpepTqrocr4ovNAIV1jaN
+79XQpEdrsom+wZKb44P0LQQrsxhJQy+VcF43kk32IoZDoCDKSdtXFXknTjVsFMoixE7+ORkPf8lP
dRA0EVxtTKYRymp259PFhmDFOjwkqzCNPwV34nwfc2ICWo8MJYh02QPwvdCLrR3o6zaZiPlJXNfly
tT5MSJ+Lb1KuoM4FaFJg==;
Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org)
by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux))
id 1j6zp5-0007CP-GO; Wed, 26 Feb 2020 16:46:11 +0000
Received: from mx2.suse.de ([195.135.220.15])
by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux))
id 1j6zp2-0007Ac-QB; Wed, 26 Feb 2020 16:46:10 +0000
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.220.254])
by mx2.suse.de (Postfix) with ESMTP id 5C95AADE0;
Wed, 26 Feb 2020 16:46:05 +0000 (UTC)
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Rob Herring <robh+dt@kernel.org>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Florian Fainelli <f.fainelli@gmail.com>
Subject: [PATCH] ARM: dts: bcm2711: Add pcie0 alias
Date: Wed, 26 Feb 2020 17:46:00 +0100
Message-Id: <20200226164601.20150-1-nsaenzjulienne@suse.de>
X-Mailer: git-send-email 2.25.1
MIME-Version: 1.0
X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3
X-CRM114-CacheID: sfid-20200226_084608_990826_B5451FB7
X-CRM114-Status: GOOD ( 11.45 )
X-Spam-Score: -2.3 (--)
X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary:
Content analysis details: (-2.3 points)
pts rule name description
---- ----------------------
--------------------------------------------------
-2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/,
medium trust [195.135.220.15 listed in list.dnswl.org]
0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
-0.0 SPF_PASS SPF: sender matches SPF record
0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)
[195.135.220.15 listed in wl.mailspike.net]
0.0 RCVD_IN_MSPIKE_WL Mailspike good senders
X-BeenThere: linux-arm-kernel@lists.infradead.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <linux-arm-kernel.lists.infradead.org>
List-Unsubscribe:
<http://lists.infradead.org/mailman/options/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/>
List-Post: <mailto:linux-arm-kernel@lists.infradead.org>
List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>
List-Subscribe:
<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>
Cc: devicetree@vger.kernel.org, phil@raspberrypi.org,
linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com,
linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To:
linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
Some bcm2711 revisions have different DMA constraints on the their PCIE
bus. The lower common denominator, being able to access the lower 3GB of
memory, is the default setting for now. Newer SoC revisions are able to
access the whole memory space.
Raspberry Pi 4's firmware is aware of this limitation and will correct
the PCIE's dma-ranges property if a pcie0 alias is available. So add
it.
Fixes: d5c8dc0d4c88 ("ARM: dts: bcm2711: Enable PCIe controller")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index cb3385262705..479f6828d73f 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -21,6 +21,7 @@ memory@0 {
aliases {
ethernet0 = &genet;
+ pcie0 = &pcie0;
};
leds {