From patchwork Wed Jun 26 10:45:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanimir Varbanov X-Patchwork-Id: 13712686 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 23D59C27C4F for ; Wed, 26 Jun 2024 10:47:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=YojtZiArRHb8JKphs/qX6maCDdsDI0fte/sTccK0ELU=; b=p2JzVqUUBc6xmX9ypWrFfeNT+w g+mzSMKaxkPOddgO7GtijK+XgCHmy91JQxp+EY/cJAayF6Tg8IGBxuboiuYPAwELCqKpfwPEOQA2F yMJ3n0jvWUMa1D1P1NX0ahVFjdWJldur+UG+SRBgWyELsPyuUfb72k/LkSdj4DNdhZ//Jm5JV8EJ/ AnqEV74Q4bX1uOgAJJ1Ldv6GXtIm5khnbE9L6sYoNLXbA09FAq0LTtlPemblihVOhjVqZSDAnhsug 77Cr4qv/TS12GX/x7jbSpolIBkuXekcgtB+GCRgd8x7LP/G/DgD6XSBTxv0iQ8nPqaYqpeeuu3yS/ ec6vTIGw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sMQB5-00000006POx-2bFw; Wed, 26 Jun 2024 10:47:03 +0000 Received: from smtp-out2.suse.de ([2a07:de40:b251:101:10:150:64:2]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sMQAl-00000006PIY-4BYC; Wed, 26 Jun 2024 10:46:48 +0000 Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 135EF1FB4C; Wed, 26 Jun 2024 10:46:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1719398801; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YojtZiArRHb8JKphs/qX6maCDdsDI0fte/sTccK0ELU=; b=Gd507zXdcc0PYjIWCHABMw8L8HNBiy9FfJBVj3pA0Zvi1/OR6/ny7CDrIKQi86j4EgsRax gd57kTyANcCxU8OBxKwLx+m72/FSpysP7WLa1dpKP0LzLhOPxcXJDGAS18upl+aYPlxWDb 3Ox8ffgQ8BR426DRrepO7VG2RT0Q1jo= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1719398801; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YojtZiArRHb8JKphs/qX6maCDdsDI0fte/sTccK0ELU=; b=Kg/CM1CGhzbiP8GXWne53MUp/CIhe+xSBQ/6tS3FNDl3/IPb0IuFxWmffkDeWusLTlwQ6t cb2Z4c5ZwAiTIfCg== Authentication-Results: smtp-out2.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=e7+KCXzS; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=R6lIPqGW DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1719398800; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YojtZiArRHb8JKphs/qX6maCDdsDI0fte/sTccK0ELU=; b=e7+KCXzSmS7VlJnfXszGUfOHpANhnfMsXlmcHdWQoZsRYBqGE/a+DXiQspbbquYXzlNwVh Aimn45dhzKUofuV4t0y4NZ1hdNZt/r1usCacaewIQAQCRTXeOnhwyVc4CYbTs+DfJpEqWp 4YI+apYx+3Ops+3AqbsprAVrZdOIjAI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1719398800; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YojtZiArRHb8JKphs/qX6maCDdsDI0fte/sTccK0ELU=; b=R6lIPqGWAJiVrPSPuup4LX4ehc8kY8CsCTToNUEjBVeFlnyJlm61lu21iQ4/UVa+nGp73z JAl1lmyrPCFDgbAw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id EE113139C2; Wed, 26 Jun 2024 10:46:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id tQ1AN47xe2ZuDQAAD6G6ig (envelope-from ); Wed, 26 Jun 2024 10:46:38 +0000 From: Stanimir Varbanov To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-pci@vger.kernel.org, Broadcom internal kernel review list Cc: Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Jim Quinlan , Nicolas Saenz Julienne , Bjorn Helgaas , Lorenzo Pieralisi , kw@linux.com, Philipp Zabel , Andrea della Porta , Phil Elwell , Jonathan Bell , Stanimir Varbanov Subject: [PATCH 0/7] Add PCIe support for bcm2712 Date: Wed, 26 Jun 2024 13:45:37 +0300 Message-ID: <20240626104544.14233-1-svarbanov@suse.de> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Spamd-Result: default: False [-1.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; SUSPICIOUS_RECIPS(1.50)[]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCPT_COUNT_TWELVE(0.00)[21]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FUZZY_BLOCKED(0.00)[rspamd.com]; FREEMAIL_CC(0.00)[linutronix.de,kernel.org,broadcom.com,gmail.com,google.com,linux.com,pengutronix.de,suse.com,raspberrypi.com,suse.de]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.de:dkim]; TAGGED_RCPT(0.00)[dt]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DKIM_TRACE(0.00)[suse.de:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com] X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Queue-Id: 135EF1FB4C X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240626_034644_227181_FCDB689B X-CRM114-Status: GOOD ( 16.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patchset aims to add bare minimum support for bcm2712 in brcmstb PCIe driver needed to support the peripherals from RP1 south-bridge found in RPi5. In order to support RP1 PCIe endpoint peripherals a new interrupt controller is added. The interrupt controller supports 64 interrupt sources which are enough to handle 61 RP1 peripherals. Patch 1 is adding DT binding schema for the MIP interrupt controller, patch 2 is adding relevant changes for PCIe bcm2712 in yaml. Patch 3 adds MIP intterrupt cotroller driver. Patches 4 and 5 are preparations for adding bcm2712 support in 6. The last patch updates bcm2712 .dsti by adding pcie DT nodes. Few concerns about the implementation: - the connection between MIP interrupt-controller and PCIe RC is done through BAR1. The PCIe driver is parsing the msi_parent DT property in order to obtain few private DT properties like "brcm,msi-pci-addr" and "reg". IMO this looks hackish but I failed to find something better. Ideas? - in downstream RPi kernel "ranges" and "dma-ranges" DT properties are under an axi {} simple-bus node even that PCIe block is on CPU MMIO bus. I tried to merge axi {} in soc {} and the result could be seen on the last patch in this series, but I'm still not sure that it looks good enough. This series has been functionally tested on OpenSUSE Tumbleweed with downstream RP1 south-bridge PCIe endpoint driver implementation as MFD by using ethernet which is part of it. The series is based on Andrea's "Add minimal boot support for Raspberry Pi 5" series. Comments are welcome! regards, ~Stan Stanimir Varbanov (7): dt-bindings: interrupt-controller: Add bcm2712 MSI-X DT bindings dt-bindings: PCI: brcmstb: Update bindings for PCIe on bcm2712 irqchip: Add Broadcom bcm2712 MSI-X interrupt controller PCI: brcmstb: Reuse config structure PCI: brcmstb: add phy_controllable flag PCI: brcmstb: Add bcm2712 support arm64: dts: broadcom: bcm2712: Add PCIe DT nodes .../brcm,bcm2712-msix.yaml | 74 +++++ .../bindings/pci/brcm,stb-pcie.yaml | 17 + arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 218 +++++++++++- drivers/irqchip/Kconfig | 12 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-bcm2712-mip.c | 287 ++++++++++++++++ drivers/pci/controller/pcie-brcmstb.c | 314 ++++++++++++++++-- 7 files changed, 876 insertions(+), 47 deletions(-) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2712-msix.yaml create mode 100644 drivers/irqchip/irq-bcm2712-mip.c