From: Frank Li <Frank.li@nxp.com>
To: Rob Herring <robh@kernel.org>
Cc: "Richard Zhu" <hongxing.zhu@nxp.com>,
"Lucas Stach" <l.stach@pengutronix.de>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Shawn Guo" <shawnguo@kernel.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
"NXP Linux Team" <linux-imx@nxp.com>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Conor Dooley" <conor+dt@kernel.org>,
linux-pci@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH v3 10/11] dt-bindings: imx6q-pcie: Add i.MX8Q pcie compatible string
Date: Mon, 29 Apr 2024 17:23:23 -0400 [thread overview]
Message-ID: <ZjAPy05fGLqX6W1I@lizhi-Precision-Tower-5810> (raw)
In-Reply-To: <20240429154823.GD1709920-robh@kernel.org>
On Mon, Apr 29, 2024 at 10:48:23AM -0500, Rob Herring wrote:
> On Tue, Apr 02, 2024 at 10:33:46AM -0400, Frank Li wrote:
> > From: Richard Zhu <hongxing.zhu@nxp.com>
> >
> > Add i.MX8Q PCIe "fsl,imx8q-pcie" compatible strings.
> >
> > Add "fsl,local-address" property for i.MX8Q platforms. fsl,local-address
> > is address of PCIe module in high speed io (HSIO)subsystem bus fabric. HSIO
> > bus fabric convert the incoming address base to this local-address. Two
> > instances of PCI have difference local address.
>
> This is just some intermediate bus address? We really should be able to
> describe this with standard ranges properties.
Yes, Maybe dwc's implement have some problem. After read below doc again
https://elinux.org/Device_Tree_Usage#PCI_Address_Translation
┌──────┐ ┌──────────┐
┌────┐0x18001000 │ │ │ │
│CPU ├───────────►│ ├──┤ Others │
└────┘ │ │ │ │
│ │ └──────────┘
│ │
│ │ ┌─────────┐
│ │ │ │ ┌───────────┐
│ ├──►│ HSIO │ 0xB8001000 ├───────────┤
│ │ │ Fabric ├───────────►│Bar0 │ TLP mem 0xB8001000
│ │ │ │ │0xB8000000 ├───────►
└──────┘ └─────────┘ │ │
Main Fabric ├───────────┤
│ │
│ │
│ │
│ │
│ │
│ │
│ DWC │
│ PCIe │
│ Controller│
│ │
│ │
└───────────┘
dts should be
ranges = <0x82000000 0 0xB8000000 0x18000000 0 0x07f00000>
^^^^
u64 imx_pcie_cpu_addr_fixup(struct dw_pcie *pcie, u64 cpu_addr)
offset = entry->res->start;
{
...
return (cpu_addr - entry->offset);
}
NVME can work. let me do more test.
Frank
>
> >
> > Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > ---
> > .../devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml | 5 +++++
> > .../devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 18 ++++++++++++++++++
> > 2 files changed, 23 insertions(+)
next prev parent reply other threads:[~2024-04-29 21:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-02 14:33 [PATCH v3 00/11] PCI: imx6: Fix\rename\clean up and add lut information for imx95 Frank Li
2024-04-02 14:33 ` [PATCH v3 01/11] PCI: imx6: Fix PCIe link down when i.MX8MM and i.MX8MP PCIe is EP mode Frank Li
2024-04-27 9:00 ` Manivannan Sadhasivam
2024-04-29 14:53 ` Frank Li
2024-04-02 14:33 ` [PATCH v3 02/11] PCI: imx6: Fix i.MX8MP PCIe EP can not trigger MSI Frank Li
2024-04-27 9:23 ` Manivannan Sadhasivam
2024-04-29 15:58 ` Frank Li
2024-04-02 14:33 ` [PATCH v3 03/11] PCI: imx6: Rename imx6_* with imx_* Frank Li
2024-04-27 9:29 ` Manivannan Sadhasivam
2024-04-02 14:33 ` [PATCH v3 04/11] PCI: imx6: Rename pci-imx6.c to pcie-imx.c Frank Li
2024-04-27 9:31 ` Manivannan Sadhasivam
2024-04-29 16:01 ` Frank Li
2024-04-02 14:33 ` [PATCH v3 05/11] MAINTAINERS: pci: imx: update imx6* to imx* since rename driver file Frank Li
2024-04-27 9:33 ` Manivannan Sadhasivam
2024-04-29 15:03 ` Rob Herring
2024-04-02 14:33 ` [PATCH v3 06/11] PCI: imx: Simplify switch-case logic by involve set_ref_clk callback Frank Li
2024-04-27 9:54 ` Manivannan Sadhasivam
2024-04-02 14:33 ` [PATCH v3 07/11] PCI: imx: Simplify switch-case logic by involve core_reset callback Frank Li
2024-04-27 10:19 ` Manivannan Sadhasivam
2024-04-29 16:38 ` Frank Li
2024-04-02 14:33 ` [PATCH v3 08/11] PCI: imx: Config look up table(LUT) to support MSI ITS and IOMMU for i.MX95 Frank Li
2024-04-27 11:36 ` Manivannan Sadhasivam
2024-04-29 15:06 ` Rob Herring
2024-04-29 17:00 ` Frank Li
2024-04-29 15:08 ` Rob Herring
2024-04-02 14:33 ` [PATCH v3 09/11] PCI: imx: Consolidate redundant if-checks Frank Li
2024-04-27 11:38 ` Manivannan Sadhasivam
2024-04-02 14:33 ` [PATCH v3 10/11] dt-bindings: imx6q-pcie: Add i.MX8Q pcie compatible string Frank Li
2024-04-29 15:48 ` Rob Herring
2024-04-29 21:23 ` Frank Li [this message]
2024-05-07 14:55 ` Rob Herring
2024-04-02 14:33 ` [PATCH v3 11/11] PCI: imx6: Add i.MX8Q PCIe support Frank Li
2024-04-27 11:47 ` Manivannan Sadhasivam
2024-04-29 17:56 ` Frank Li
2024-04-16 14:07 ` [PATCH v3 00/11] PCI: imx6: Fix\rename\clean up and add lut information for imx95 Frank Li
2024-04-25 11:12 ` Manivannan Sadhasivam
2024-04-23 14:23 ` Frank Li
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