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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED19BECAAD5 for ; Mon, 5 Sep 2022 19:25:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232287AbiIETZw (ORCPT ); Mon, 5 Sep 2022 15:25:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43684 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231929AbiIETZe (ORCPT ); Mon, 5 Sep 2022 15:25:34 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F184E23BF3; Mon, 5 Sep 2022 12:25:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E8AEAB815D7; Mon, 5 Sep 2022 19:25:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3A08CC433C1; Mon, 5 Sep 2022 19:25:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1662405918; bh=ZacdliM5CoZmtUxRzDil8M4sBbkaHBWCQ94hEdIcfxU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aIb6ot0n5NwflvIzaQmsNChFTos6Al5fqOAMg9r9liJ1gMwWfKRNivD0UW4I8lA00 kKDhSSZimKk/okc5M1M1W2uvckXDxf2pWoN+OJSf3AAH5YOHqpNbMHxJOiWH1E4ltJ QQ3W9mLrwy+wjgFU+qQItZwZd+Tu2aOX4KPNlw1iimCNPC1oLBd33kOwLdTrkujN57 6sWAaOymlQBhU7XnyWXtEZYVgOANJRUm9gOj9+1O/+Jyu9j2WetT+evY7mjgyhdiuj Ub7AHLholO7oaZ4cDVLL2TClDIwl0/g5s9AzXGfdBdsbuRbmD/QD1aoG3xIq1yDoAk 7Gzeh6pAkzQKQ== Received: by pali.im (Postfix) id E5CFD7D7; Mon, 5 Sep 2022 21:25:17 +0200 (CEST) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , Krzysztof Kozlowski , Andrew Lunn , Sebastian Hesselbarth , Gregory Clement , Russell King , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Thomas Petazzoni , Mauri Sandberg Cc: linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 7/7] ARM: dts: orion5x: Add PCIe node Date: Mon, 5 Sep 2022 21:23:10 +0200 Message-Id: <20220905192310.22786-8-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220905192310.22786-1-pali@kernel.org> References: <20220718202843.6766-1-maukka@ext.kapsi.fi> <20220905192310.22786-1-pali@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Define PCIe aperture for top level soc node handled by mbus driver and define PCIe controller node with one PCIe Root Port. Old Orion arch code maps first 16 MB of PCIe config space to physical address 0xf0000000. But for full PCIe support it is needed to map whole 256 MB long PCIe config space. There are probably no Orion boards with more than 2 GB of RAM, so 256 MB of free physical address space must exist. Tests on Orion board proved that there is free space in physical address range 0xd0000000-0xdfffffff. So use this physical space for mapping whole 256 MB long PCIe config space. In case there would be some issue with this range, particular Orion device tree board file can change it to 16 MB size or move it to old location. By default orion5x.dtsi include file would contains whole PCIe config space for full PCIe support. By default is PCIe node disabled, so this change in orion5x.dtsi has no effect for any board until board dts file explicitly enable it. Each board has to migrate its PCIe code from old arch specific to device tree based. Signed-off-by: Pali Rohár --- Changes in v3: * New patch --- arch/arm/boot/dts/orion5x.dtsi | 51 ++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/arch/arm/boot/dts/orion5x.dtsi b/arch/arm/boot/dts/orion5x.dtsi index 2d41f5c166ee..41954d96ebbf 100644 --- a/arch/arm/boot/dts/orion5x.dtsi +++ b/arch/arm/boot/dts/orion5x.dtsi @@ -18,6 +18,9 @@ #address-cells = <2>; #size-cells = <1>; controller = <&mbusc>; + pcie-cfg-aperture = <0xd0000000 0x10000000>; /* 256 MiB config space */ + pcie-mem-aperture = <0xe0000000 0x08000000>; /* 128 MiB memory space */ + pcie-io-aperture = <0xf2000000 0x00100000>; /* 1 MiB I/O space */ devbus_bootcs: devbus-bootcs { compatible = "marvell,orion-devbus"; @@ -226,6 +229,54 @@ }; }; + pciec: pcie { + compatible = "marvell,orion5x-pcie"; + status = "disabled"; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + + msi-parent = <&intc>; + bus-range = <0x00 0xff>; + + ranges = <0x82000000 0x0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0x0 0x2000>, /* Port 0.0 Internal registers */ + <0x82000000 0x0 0xf0000000 MBUS_ID(0x04, 0x79) 0x0 0x0 0x10000000>, /* Port 0.0 Config space registers */ + <0x82000000 0x1 0x00000000 MBUS_ID(0x04, 0x59) 0x0 0x1 0x00000000>, /* Port 0.0 Mem */ + <0x81000000 0x1 0x00000000 MBUS_ID(0x04, 0x51) 0x0 0x1 0x00000000>; /* Port 0.0 I/O */ + + pcie0: pcie@1,0 { + status = "disabled"; + reg = <0x0800 0 0 0 0>; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + + assigned-addresses = <0x82000800 0x0 0x40000 0x0 0x2000>, /* Port 0.0 Internal registers */ + <0x82000800 0x0 0xf0000000 0x0 0x10000000>; /* Port 0.0 Config space registers */ + ranges = <0x82000000 0x0 0x0 0x82000000 0x1 0x00000000 0x1 0x00000000>, /* Port 0.0 Mem */ + <0x81000000 0x0 0x0 0x81000000 0x1 0x00000000 0x1 0x00000000>; /* Port 0.0 I/O */ + bus-range = <0x00 0xff>; + + clocks = <&core_clk 0>; + marvell,pcie-port = <0>; + marvell,pcie-lane = <0>; + + #interrupt-cells = <1>; + interrupt-names = "intx", "error"; + interrupts = <11>, <10>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_intc 0>, + <0 0 0 2 &pcie_intc 1>, + <0 0 0 3 &pcie_intc 2>, + <0 0 0 4 &pcie_intc 3>; + + pcie_intc: interrupt-controller { + interrupt-controller; + #interrupt-cells = <1>; + }; + }; + }; + crypto_sram: sa-sram { compatible = "mmio-sram"; reg = ; -- 2.20.1