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Date: Thu, 20 Jun 2013 10:04:22 +0200 From: Tomasz Figa <tomasz.figa@...il.com> To: Jingoo Han <jg1.han@...sung.com> Cc: 'Kukjin Kim' <kgene.kim@...sung.com>, 'Bjorn Helgaas' <bhelgaas@...gle.com>, linux-samsung-soc@...r.kernel.org, linux-pci@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 'Grant Likely' <grant.likely@...retlab.ca>, 'Andrew Murray' <andrew.murray@....com>, 'Thomas Petazzoni' <thomas.petazzoni@...e-electrons.com>, 'Thierry Reding' <thierry.reding@...onic-design.de>, 'Jason Gunthorpe' <jgunthorpe@...idianresearch.com>, 'Arnd Bergmann' <arnd@...db.de>, 'Surendranath Gurivireddy Balla' <suren.reddy@...sung.com>, 'Siva Reddy Kallam' <siva.kallam@...sung.com>, 'Thomas Abraham' <thomas.abraham@...aro.org> Subject: Re: [PATCH V6 3/3] ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC Hi Jingoo, On Thursday 20 of June 2013 16:12:24 Jingoo Han wrote: > Exynos5440 has two PCIe controllers which can be used as root complex > for PCIe interface. > > Signed-off-by: Jingoo Han <jg1.han@...sung.com> > --- > arch/arm/boot/dts/exynos5440-ssdk5440.dts | 8 ++++++ > arch/arm/boot/dts/exynos5440.dtsi | 40 > ++++++++++++++++++++++++++++- 2 files changed, 47 insertions(+), 1 > deletion(-) > > diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts > b/arch/arm/boot/dts/exynos5440-ssdk5440.dts index f32cd77..3d93804 > 100644 > --- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts > +++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts > @@ -65,4 +65,12 @@ > clock-frequency = <50000000>; > }; > }; > + > + pcie0@...000 { > + reset-gpio = <&pin_ctrl 5 0>; > + }; > + > + pcie1@...000 { > + reset-gpio = <&pin_ctrl 22 0>; > + }; > }; > diff --git a/arch/arm/boot/dts/exynos5440.dtsi > b/arch/arm/boot/dts/exynos5440.dtsi index 03d40c0..6295eda 100644 > --- a/arch/arm/boot/dts/exynos5440.dtsi > +++ b/arch/arm/boot/dts/exynos5440.dtsi > @@ -126,7 +126,7 @@ > clock-names = "spi", "spi_busclk0"; > }; > > - pinctrl { > + pin_ctrl: pinctrl { > compatible = "samsung,exynos5440-pinctrl"; > reg = <0xE0000 0x1000>; > interrupts = <0 37 0>, <0 38 0>, <0 39 0>, <0 40 0>, > @@ -230,4 +230,42 @@ > clocks = <&clock 24>; > clock-names = "usbhost"; > }; I think this patch should be split into two: - patch adding just generlic PCIe nodes for Exynos5440, - patch adding label to the pinctrl node (which is a prerequisite) and board-specific properties of PCIe nodes. > + > + pcie0@...000 { Node naming looks incorrect here. The name should be as generic as possible, without any hardware-specific IDs, e.g. pcie, not pcie0. The @290000 suffix is enough to make the node unique. > + compatible = "samsung,exynos5440-pcie"; > + reg = <0x290000 0x1000 > + 0x270000 0x1000 > + 0x271000 0x40>; > + interrupts = <0 20 0>, <0 21 0>, <0 22 0>; > + clocks = <&clock 28>, <&clock 27>; > + clock-names = "pcie", "pcie_bus"; > + #address-cells = <3>; > + #size-cells = <2>; > + device_type = "pci"; > + ranges = <0x00000800 0 0x40000000 0x40000000 0 0x00001000 /* > configuration space */ + 0x81000000 0 0 0x40001000 0 0x00010000 > /* downstream I/O */ + 0x82000000 0 0x40011000 0x40011000 0 > 0x1ffef000>; /* non-prefetchable memory */ + #interrupt-cells = <1>; > + interrupt-map-mask = <0 0 0 0>; > + interrupt-map = <0x0 0 &gic 53>; > + }; > + > + pcie1@...000 { Same here. Best regards, Tomasz > + compatible = "samsung,exynos5440-pcie"; > + reg = <0x2a0000 0x1000 > + 0x272000 0x1000 > + 0x271040 0x40>; > + interrupts = <0 23 0>, <0 24 0>, <0 25 0>; > + clocks = <&clock 29>, <&clock 27>; > + clock-names = "pcie", "pcie_bus"; > + #address-cells = <3>; > + #size-cells = <2>; > + device_type = "pci"; > + ranges = <0x00000800 0 0x60000000 0x60000000 0 0x00001000 /* > configuration space */ + 0x81000000 0 0 0x60001000 0 0x00010000 > /* downstream I/O */ + 0x82000000 0 0x60011000 0x60011000 0 > 0x1ffef000>; /* non-prefetchable memory */ + #interrupt-cells = <1>; > + interrupt-map-mask = <0 0 0 0>; > + interrupt-map = <0x0 0 &gic 56>; > + }; > }; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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