linux-kernel - [PATCH v3 0/2] PCI: altera: add support to agilex family

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Message-Id: <20230911101503.1769696-1-sharath.kumar.d.m@intel.com>
Date:   Mon, 11 Sep 2023 15:45:03 +0530
From:   sharath.kumar.d.m@...el.com
To:     sharath.kumar.d.m@...el.com
Cc:     bhelgaas@...gle.com, dinguyen@...nel.org, kw@...ux.com,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        lpieralisi@...nel.org, robh@...nel.org
Subject: [PATCH v3 0/2] PCI: altera: add support to agilex family

From: D M Sharath Kumar <sharath.kumar.d.m@...el.com>

added new callback for
1) read,write to root port configuration registers
2) read,write to endpoint configuration registers
3) root port interrupt handler

agilex and newer platforms need to implemant the callback and generic root port driver should work ( without much changes ) , legacy platforms (arria and startix) implement configuration read,write directly in wrapper api _altera_pcie_cfg_read/_altera_pcie_cfg_write

changelog v2:
saperated into two patches
1.refactored the driver for easily portability to future Altera FPGA
platforms
2.added support for "Agilex" FPGA

this driver supports PCI RP IP on Agilex FPGA, as these are FPGA its up
to the user to add PCI RP or not ( as per his needs). we are not adding
the device tree as part of this commit. we are expecting the add device
tree changes only if he is adding PCI RP IP in his design

changelog v3:
incorporate review comments from Bjorn Helgaas

D M Sharath Kumar (2):
  PCI: altera: refactor driver for supporting new platforms
  PCI: altera: add support for agilex family fpga

 drivers/pci/controller/pcie-altera.c | 305 ++++++++++++++++++++++++---
 1 file changed, 275 insertions(+), 30 deletions(-)

-- 
2.34.1