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Message-ID: <1168e373-b049-4c17-9cbd-c588bf913bbb@starfivetech.com>
Date: Fri, 1 Dec 2023 15:15:39 +0800
From: Minda Chen <minda.chen@...rfivetech.com>
To: Conor Dooley <conor@...nel.org>,
Krzysztof Wilczyński <kw@...ux.com>,
Rob Herring <robh+dt@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
"Daire McNamara" <daire.mcnamara@...rochip.com>,
Emil Renner Berthing <emil.renner.berthing@...onical.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-riscv@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
"Palmer Dabbelt" <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
"Philipp Zabel" <p.zabel@...gutronix.de>,
Mason Huo <mason.huo@...rfivetech.com>,
Leyfoon Tan <leyfoon.tan@...rfivetech.com>,
Kevin Xie <kevin.xie@...rfivetech.com>
Subject: Re: [PATCH v11 0/20] Refactoring Microchip PCIe driver and add
StarFive PCIe
On 2023/11/29 19:32, Damian Tometzki wrote:
> On Wed, 29. Nov 07:39, Damian Tometzki wrote:
>> Hello Minda,
>>
>> i tried this Patchset on Linux-6.6.3 but boot with nvme doesnt work. Linux doesnt find
>> /root partition /dev/nvme0n1p4.
>> I dont know if it has anything to do with this patchset ?
>> Best regards
>> Damian
> Hi,
> some additional information:
> Begin: Running /scripts/local-block ... done.
> Begin: Running /scripts/local-block ... done.
> [ 11.097653] /soc/pcie@...000000: Failed to get clk index: 1 ret: -517
> [ 11.104147] pcie-starfive 940000000.pcie: error -ENODEV: failed to get pcie clocks
> [ 11.111981] /soc/pcie@...000000: Failed to get clk index: 1 ret: -517
> [ 11.118451] pcie-starfive 9c0000000.pcie: error -ENODEV: failed to get pcie clocks
> [ 11.126371] platform 17020000.pinctrl: deferred probe pending
> [ 11.132145] platform 16010000.mmc: deferred probe pending
> Begin: Running /scripts/local-block ... done.
> Begin: Running /scripts/local-block ... done.
>
> Damian
>
It is get stg clk failed. Did you enable CONFIG_CLK_STARFIVE_JH7110_STG=y?
>>
>> On Wed, 15. Nov 19:48, Minda Chen wrote:
>> > This patchset final purpose is add PCIe driver for StarFive JH7110 SoC.
>> > JH7110 using PLDA XpressRICH PCIe IP. Microchip PolarFire Using the
>> > same IP and have commit their codes, which are mixed with PLDA
>> > controller codes and Microchip platform codes.
>> >
>> > For re-use the PLDA controller codes, I request refactoring microchip
>> > codes, move PLDA common codes to PLDA files.
>> > Desigware and Cadence is good example for refactoring codes.
>> >
>> > ----------------------------------------------------------
>> > The refactoring patches total number is 16,(patch 1-16)
>> > which do NOT contain changing logic of codes.
>> >
>> > These patches just contain three type basic operations.
>> > (rename, modify codes to support starfive platform, and moving to common file)
>> > If these patched are all be reviewed. They can be accepted first.
>> >
>> > Refactoring patches can be devided to different groups
>> > 1. (patch 1- 3 is the prepare work of refactoring)
>> > patch1 is move PLDA XpressRICH PCIe host common properties dt-binding
>> > docs from microchip,pcie-host.yaml
>> > patch2 is move PolarFire codes to PLDA directory.
>> > patch3 is move PLDA IP register macros to plda-pcie.h
>> >
>> > 2. (patch4 - 6 is processing and re-use PCIe host instance)
>> > patch4 is add bridge_addr field to PCIe host instance.
>> > patch5 is rename data structure in microchip codes.
>> > patch6 is moving two data structures to head file
>> >
>> > 3. (patch 7 - 9 are for re-use two PCIe setup function)
>> > patch7 is rename two setup functions in microchip codes, prepare to move
>> > to common file.
>> > patch8 is change the arguments of plda_pcie_setup_iomems()
>> > patch9 is move the two setup functions to common file pcie-plda-host.c
>> >
>> > 4.(patch 10 - 16 are for re-use interupt processing codes)
>> > patch10 is rename the IRQ related functions, prepare to move to
>> > pcie-plda-host.c
>> > patch 11 - 15 is modify the interrupt event codes, preparing for support starfive
>> > and microchip two platforms.
>> > patch16 is move IRQ related functions to pcie-plda-host.c
>> >
>> > ------------------------------------------------------------
>> > The remainder patches (patch 17 -20) are not refactoring patch.
>> > They are for adding StarFive codes and dont modify the microchip's
>> > codes.
>> >
>> > patch17 is Add PLDA event interrupt codes and host init/deinit functions.
>> > patch18 is add StarFive JH7110 PCIe dt-binding doc.
>> > patch19 is add StarFive JH7110 Soc PCIe codes.
>> > patch20 is Starfive dts config
>> >
>> > This patchset is base on v6.7-rc1
>> >
>> > previous version:
>> > v6:https://patchwork.kernel.org/project/linux-pci/cover/20230915102243.59775-1-minda.chen@starfivetech.com/
>> > v7:https://patchwork.kernel.org/project/linux-pci/cover/20230927100802.46620-1-minda.chen@starfivetech.com/
>> > v8:https://patchwork.kernel.org/project/linux-pci/cover/20231011110514.107528-1-minda.chen@starfivetech.com/
>> > v9:https://patchwork.kernel.org/project/linux-pci/cover/20231020104341.63157-1-minda.chen@starfivetech.com/
>> > v10:https://patchwork.kernel.org/project/linux-pci/cover/20231031115430.113586-1-minda.chen@starfivetech.com/
>> >
>> > change:
>> > v11:
>> > check and modify some commit messages again.
>> > All the codes are the same with v10.
>> >
>> > v10:
>> > All the commit message set to fit in 75 columns.
>> > All the codes fit in less than 80 colunms.
>> > patch 14:
>> > Commit message changes suggested by Conor.
>> > patch 19:
>> > Add 100 ms delay macro to pci.h
>> > generic phy pointer related codes moving to pcie-starfive.c
>> > This patch Change pcie-starfive only, bus_ops move to patch 16.
>> > Some Codes changes suggested by Bjorn.
>> >
>> > v9:
>> > v8 patch 10 squash to v9 patch 12, v8 patch 18 squash to v9 patch 16.
>> > patch 4 - 16: Add new review tags and add more accurate commit messages.
>> > patch 17: move the plda_pcie_host_init/deinit from patch 19. Make
>> > plda driver become to whole driver.
>> >
>> > v8:
>> > The patch description in cover-letter has been changed.
>> >
>> > v7 patch 4 split to v8 patch 4 - 6.
>> > (It is patches about re-use pcie host data structure, new patches just contain one
>> > function modification. It is more reguluar and easier to review).
>> >
>> > patch 7- 9: modify the commit messages and add reason of
>> > modifcation.
>> > patch10- 16 :
>> > Add review tag and add more commit messages to declear the
>> > reason of modifying the codes.
>> > patch17: plda_handle_events() using bit mask macro. The function are
>> > easier to read.
>> >
>> > v7:
>> > patch17: fix the build warning.
>> > patch19: Some format changes (Emil's comment)
>> > patch20: change the pcie node sequences by alphabetical
>> > delete the "interupt-parent" in pcie node.
>> >
>> > v6:
>> > v5 patch 4 split to patch 4 -9. New patches just contain one function modification. It is more reguluar.
>> >
>> > patch 9: Just move the two setup functions only
>> > patch 19 : draw a graph of PLDA local register, make it easier to
>> > review the codes.
>> > v5 patch 7 split to patch 10- 16. Each patch just contain one
>> > function modification. It is more regular.
>> > patch 10: rename IRQ related functions.
>> > patch 11 - 15 : modify the events codes, total five patch.
>> > patch 16: move IRQ related functions to pcie-plda-host.c
>> > patch 19- 20 using "linux,pci-domain" dts setting.
>> >
>> > Minda Chen (20):
>> > dt-bindings: PCI: Add PLDA XpressRICH PCIe host common properties
>> > PCI: microchip: Move pcie-microchip-host.c to plda directory
>> > PCI: microchip: Move PLDA IP register macros to pcie-plda.h
>> > PCI: microchip: Add bridge_addr field to struct mc_pcie
>> > PCI: microchip: Rename two PCIe data structures
>> > PCI: microchip: Move PCIe host data structures to plda-pcie.h
>> > PCI: microchip: Rename two setup functions
>> > PCI: microchip: Change the argument of plda_pcie_setup_iomems()
>> > PCI: microchip: Move setup functions to pcie-plda-host.c
>> > PCI: microchip: Rename interrupt related functions
>> > PCI: microchip: Add num_events field to struct plda_pcie_rp
>> > PCI: microchip: Add request_event_irq() callback function
>> > PCI: microchip: Add INTx and MSI event num to struct plda_event
>> > PCI: microchip: Add get_events() callback function
>> > PCI: microchip: Add event IRQ domain ops to struct plda_event
>> > PCI: microchip: Move IRQ functions to pcie-plda-host.c
>> > PCI: plda: Add event interrupt codes and host init/deinit functions
>> > dt-bindings: PCI: Add StarFive JH7110 PCIe controller
>> > PCI: starfive: Add JH7110 PCIe controller
>> > riscv: dts: starfive: add PCIe dts configuration for JH7110
>> >
>> > .../bindings/pci/microchip,pcie-host.yaml | 55 +-
>> > .../pci/plda,xpressrich3-axi-common.yaml | 75 ++
>> > .../bindings/pci/starfive,jh7110-pcie.yaml | 120 ++++
>> > MAINTAINERS | 19 +-
>> > .../jh7110-starfive-visionfive-2.dtsi | 64 ++
>> > arch/riscv/boot/dts/starfive/jh7110.dtsi | 86 +++
>> > drivers/pci/controller/Kconfig | 9 +-
>> > drivers/pci/controller/Makefile | 2 +-
>> > drivers/pci/controller/plda/Kconfig | 29 +
>> > drivers/pci/controller/plda/Makefile | 4 +
>> > .../{ => plda}/pcie-microchip-host.c | 602 ++--------------
>> > drivers/pci/controller/plda/pcie-plda-host.c | 657 ++++++++++++++++++
>> > drivers/pci/controller/plda/pcie-plda.h | 266 +++++++
>> > drivers/pci/controller/plda/pcie-starfive.c | 460 ++++++++++++
>> > drivers/pci/pci.h | 7 +
>> > 15 files changed, 1851 insertions(+), 604 deletions(-)
>> > create mode 100644 Documentation/devicetree/bindings/pci/plda,xpressrich3-axi-common.yaml
>> > create mode 100644 Documentation/devicetree/bindings/pci/starfive,jh7110-pcie.yaml
>> > create mode 100644 drivers/pci/controller/plda/Kconfig
>> > create mode 100644 drivers/pci/controller/plda/Makefile
>> > rename drivers/pci/controller/{ => plda}/pcie-microchip-host.c (54%)
>> > create mode 100644 drivers/pci/controller/plda/pcie-plda-host.c
>> > create mode 100644 drivers/pci/controller/plda/pcie-plda.h
>> > create mode 100644 drivers/pci/controller/plda/pcie-starfive.c
>> >
>> >
>> > base-commit: b85ea95d086471afb4ad062012a4d73cd328fa86
>> > --
>> > 2.17.1
>> >
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