[PATCH v5 0/6] Add SiFive FU740 PCIe host controller driver support

Palmer Dabbelt palmer at dabbelt.com
Fri Apr 23 06:10:45 BST 2021

On Thu, 22 Apr 2021 21:43:03 PDT (-0700), Palmer Dabbelt wrote:
> On Sun, 11 Apr 2021 19:37:50 PDT (-0700), greentime.hu at sifive.com wrote:
>> Lorenzo Pieralisi <lorenzo.pieralisi at arm.com> 於 2021年4月9日 週五 下午4:54寫道:
>>> On Tue, 6 Apr 2021 17:26:28 +0800, Greentime Hu wrote:
>>> > This patchset includes SiFive FU740 PCIe host controller driver. We also
>>> > add pcie_aux clock and pcie_power_on_reset controller to prci driver for
>>> > PCIe driver to use it.
>>> >
>>> > This is tested with e1000e: Intel(R) PRO/1000 Network Card, AMD Radeon R5
>>> > 230 graphics card and SP M.2 PCIe Gen 3 SSD in SiFive Unmatched based on
>>> > v5.11 Linux kernel.
>>> >
>>> > [...]
>>> Applied to pci/dwc [dropped patch 6], thanks!
>>> [1/6] clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
>>>       https://git.kernel.org/lpieralisi/pci/c/f3ce593b1a
>>> [2/6] clk: sifive: Use reset-simple in prci driver for PCIe driver
>>>       https://git.kernel.org/lpieralisi/pci/c/0a78fcfd3d
>>> [3/6] MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
>>>       https://git.kernel.org/lpieralisi/pci/c/8bb1c66a90
>>> [4/6] dt-bindings: PCI: Add SiFive FU740 PCIe host controller
>>>       https://git.kernel.org/lpieralisi/pci/c/b86d55c107
>>> [5/6] PCI: fu740: Add SiFive FU740 PCIe host controller driver
>>>       https://git.kernel.org/lpieralisi/pci/c/327c333a79
>>> Thanks,
>>> Lorenzo
>> Hi Palmer,
>> Since the PCIE driver has been applied, would you please pick patch 6
>> to RISC-V for-next tree?
>> Thank you. :)
> Sorry, I got this confused between the Linux patch set and the u-boot
> patch set so I thought more versions of this had kept comming.  The DT
> is on for-next now.

I spoke too soon: this actually dosn't even build for me.  It's the 
"clocks = <&prci PRCI_CLK_PCIE_AUX>;" line

    Error: arch/riscv/boot/dts/sifive/fu740-c000.dtsi:319.20-21 syntax error
    FATAL ERROR: Unable to parse input tree
    make[2]: *** [scripts/Makefile.lib:336: arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dtb] Error 1
    make[1]: *** [scripts/Makefile.build:514: arch/riscv/boot/dts/sifive] Error 2
    make: *** [Makefile:1388: dtbs] Error 2
    make: *** Waiting for unfinished jobs....

I'm not sure what the issue is, I see an anchor for "prci".  Do you mind 
sending along a new version that compiles on top of for-next?  If I need 
the definiton of PRCI_CLK_PCIE_AUX from a PCIe tree then it's probably 
best to just keep the DTS along with the rest of the patches.  IIRC I 
alredy Acked it, but just to be clear

Acked-by: Palmer Dabbelt <palmerdabbelt at google.com>


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