* [PATCH v2 0/4] Spilt PCIe node to comply with hardware design
@ 2020-05-28 6:16 chuanjia.liu
2020-05-29 3:05 ` Ryder Lee
0 siblings, 1 reply; 2+ messages in thread
From: chuanjia.liu @ 2020-05-28 6:16 UTC (permalink / raw)
To: robh+dt, ryder.lee, matthias.bgg
Cc: lorenzo.pieralisi, amurray, linux-pci, linux-mediatek,
devicetree, linux-kernel, linux-arm-kernel, bhelgaas,
chuanjia.liu, jianjun.wang, yong.wu, srv_heupstream
There are two independent PCIe controllers in MT2712/MT7622 platform,
and each of them should contain an independent MSI domain.
In current architecture, MSI domain will be inherited from the root
bridge, and all of the devices will share the same MSI domain.
Hence that, the PCIe devices will not work properly if the irq number
which required is more than 32.
Split the PCIe node for MT2712/MT7622 platform to fix MSI issue and
comply with the hardware design.
change note:
v2: change the allocation of mt2712 PCIe MMIO space due to the allcation
size is not right in v1.
chuanjia.liu (4):
dt-bindings: PCI: Mediatek: Update PCIe binding
PCI: mediatek: Use regmap to get shared pcie-cfg base
arm64: dts: mediatek: Split PCIe node for MT2712/MT7622
ARM: dts: mediatek: Update mt7629 PCIe node
.../bindings/pci/mediatek-pcie-cfg.yaml | 38 +++++
.../devicetree/bindings/pci/mediatek-pcie.txt | 144 +++++++++++-------
arch/arm/boot/dts/mt7629-rfb.dts | 3 +-
arch/arm/boot/dts/mt7629.dtsi | 23 +--
arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 75 +++++----
.../dts/mediatek/mt7622-bananapi-bpi-r64.dts | 16 +-
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts | 6 +-
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 68 ++++++---
drivers/pci/controller/pcie-mediatek.c | 25 ++-
9 files changed, 258 insertions(+), 140 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
--
2.18.0
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v2 0/4] Spilt PCIe node to comply with hardware design
2020-05-28 6:16 [PATCH v2 0/4] Spilt PCIe node to comply with hardware design chuanjia.liu
@ 2020-05-29 3:05 ` Ryder Lee
0 siblings, 0 replies; 2+ messages in thread
From: Ryder Lee @ 2020-05-29 3:05 UTC (permalink / raw)
To: chuanjia.liu
Cc: robh+dt, matthias.bgg, lorenzo.pieralisi, amurray, linux-pci,
linux-mediatek, devicetree, linux-kernel, linux-arm-kernel,
bhelgaas, jianjun.wang, yong.wu, srv_heupstream
On Thu, 2020-05-28 at 14:16 +0800, chuanjia.liu@mediatek.com wrote:
> There are two independent PCIe controllers in MT2712/MT7622 platform,
> and each of them should contain an independent MSI domain.
>
> In current architecture, MSI domain will be inherited from the root
> bridge, and all of the devices will share the same MSI domain.
> Hence that, the PCIe devices will not work properly if the irq number
> which required is more than 32.
>
> Split the PCIe node for MT2712/MT7622 platform to fix MSI issue and
> comply with the hardware design.
>
> change note:
> v2: change the allocation of mt2712 PCIe MMIO space due to the allcation
> size is not right in v1.
>
> chuanjia.liu (4):
> dt-bindings: PCI: Mediatek: Update PCIe binding
> PCI: mediatek: Use regmap to get shared pcie-cfg base
> arm64: dts: mediatek: Split PCIe node for MT2712/MT7622
> ARM: dts: mediatek: Update mt7629 PCIe node
>
> .../bindings/pci/mediatek-pcie-cfg.yaml | 38 +++++
> .../devicetree/bindings/pci/mediatek-pcie.txt | 144 +++++++++++-------
> arch/arm/boot/dts/mt7629-rfb.dts | 3 +-
> arch/arm/boot/dts/mt7629.dtsi | 23 +--
> arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 75 +++++----
> .../dts/mediatek/mt7622-bananapi-bpi-r64.dts | 16 +-
> arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts | 6 +-
> arch/arm64/boot/dts/mediatek/mt7622.dtsi | 68 ++++++---
> drivers/pci/controller/pcie-mediatek.c | 25 ++-
> 9 files changed, 258 insertions(+), 140 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
>
> --
> 2.18.0
>
>
For the series:
Acked-by: Ryder Lee <ryder.lee@mediatek.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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