linux-kernel - [PATCH v2 -next 00/11] Add PCIe support for bcm2712

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Message-ID: <20240910151845.17308-1-svarbanov@suse.de>
Date: Tue, 10 Sep 2024 18:18:34 +0300
From: Stanimir Varbanov <svarbanov@...e.de>
To: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rpi-kernel@...ts.infradead.org,
	linux-pci@...r.kernel.org,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Jim Quinlan <jim2101024@...il.com>,
	Nicolas Saenz Julienne <nsaenz@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	kw@...ux.com,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Andrea della Porta <andrea.porta@...e.com>,
	Phil Elwell <phil@...pberrypi.com>,
	Jonathan Bell <jonathan@...pberrypi.com>,
	Stanimir Varbanov <svarbanov@...e.de>
Subject: [PATCH v2 -next 00/11] Add PCIe support for bcm2712

Hello,

Here is a v2 of adding PCIe support for bcm2712 (RPi5), the fisrt
version can be found at [1].

v2 is based on linux-next plus latest changes in pcie-brcmstb driver
[2]. The changes recently made by Jim leaded to a simplified patchset
for bcm2712 enablement coparing with previous version of this series.

Noticeable changes are:

 - Use of msi-range property in the MIP MSI-X controller and DT which
 make possible to avoid few private DT properties. The other noticeable
 change is moving of msi-pci-addr private property to a second 'reg'
 region. I'll appreciate comments on this.

 - Now the PCIe DT nodes are on separate axi{} simple-bus because adding
 it on soc{} adds too much churn in the node (Florian).

 - Added 'quirks' field in pcie_cfg_data to work around an issue (hw bug?)
 with bridge_reset on bcm2712 SoC.

regards,
~Stan

[1] https://patchwork.kernel.org/project/linux-pci/cover/20240626104544.14233-1-svarbanov@suse.de/
[2] https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=controller/brcmstb

Stanimir Varbanov (11):
  dt-bindings: interrupt-controller: Add bcm2712 MSI-X DT bindings
  dt-bindings: PCI: brcmstb: Update bindings for PCIe on bcm2712
  irqchip: mip: Add Broadcom bcm2712 MSI-X interrupt controller
  PCI: brcmstb: Expand inbound size calculation helper
  PCI: brcmstb: Restore CRS in RootCtl after prstn_n
  PCI: brcmstb: Enable external MSI-X if available
  PCI: brcmstb: Avoid turn off of bridge reset
  PCI: brcmstb: Add bcm2712 support
  PCI: brcmstb: Reuse config structure
  arm64: dts: broadcom: bcm2712: Add PCIe DT nodes
  arm64: dts: broadcom: bcm2712-rpi-5-b: Enable PCIe DT nodes

 .../brcm,bcm2712-msix.yaml                    |  69 ++++
 .../bindings/pci/brcm,stb-pcie.yaml           |   5 +-
 .../boot/dts/broadcom/bcm2712-rpi-5-b.dts     |   8 +
 arch/arm64/boot/dts/broadcom/bcm2712.dtsi     | 166 ++++++++++
 drivers/irqchip/Kconfig                       |  12 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/irq-bcm2712-mip.c             | 310 ++++++++++++++++++
 drivers/pci/controller/pcie-brcmstb.c         | 172 +++++++---
 8 files changed, 694 insertions(+), 49 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2712-msix.yaml
 create mode 100644 drivers/irqchip/irq-bcm2712-mip.c

-- 
2.35.3