Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934746Ab3DHJJB (ORCPT ); Mon, 8 Apr 2013 05:09:01 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:49358 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934594Ab3DHJIz (ORCPT ); Mon, 8 Apr 2013 05:08:55 -0400 X-AuditID: cbfee68d-b7f786d000005188-65-51628925709f From: Jingoo Han To: "'Jason Gunthorpe'" Cc: "'Kukjin Kim'" , "'Bjorn Helgaas'" , linux-samsung-soc@vger.kernel.org, linux-pci@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, "'Grant Likely'" , "'Andrew Murray'" , "'Thomas Petazzoni'" , "'Thierry Reding'" , "'Jason Gunthorpe'" , "'Surendranath Gurivireddy Balla'" , "'Siva Reddy Kallam'" , "'Thomas Abraham'" , "'Jingoo Han'" References: <00c001ce277b$92b26ab0$b8174010$%han@samsung.com> <00c501ce277c$30e49dc0$92add940$%han@samsung.com> In-reply-to: <00c501ce277c$30e49dc0$92add940$%han@samsung.com> Subject: Re: [PATCH 6/6] ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC Date: Mon, 08 Apr 2013 18:08:53 +0900 Message-id: <000001ce3438$b136e1e0$13a4a5a0$%han@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Thread-index: Ac4ne5IlJNJTIxgLT4K5aVV6JypTrgAAI7VAAy7NpvA= Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrJKsWRmVeSWpSXmKPExsVy+t8zI13VzqRAg6ld5hbN/7ezWixpyrA4 MPshq8WrMxvZLC4vvMRq8f2GqUXvgqtsFpseX2O1uLxrDpvF2XnH2SxmnN/HZLGiaSujxeKL y5ktdq9cwmJxbMYSRounD5qYHAQ81sxbw+jRN+Uqm8eTTRcZPRZsKvW4c20Pm8fmJfUe52cs ZPT4vqMXqGDLKkaPny91PD5vkgvgjuKySUnNySxLLdK3S+DKONf/l7Hgv3LFppb7zA2MKyS7 GDk5JARMJB5t3MQGYYtJXLi3Hsjm4hASWMYocWzlIRaYoknXNjFCJBYxSqx/v58dwvnFKLG1 fRYjSBWbgJrEly+H2UFsEQFziQmrfoCNYhY4wiqxZuJ/VpCEkEChxMOO9WD7OAXsJJbcnc0E YgsLREhcef4YzGYRUJWY//4gWD2vgK3E/VlNLBC2oMSPyffAbGYBLYn1O48zQdjyEpvXvGXu YuQAOlVd4tFfXYgbrCQ+LH4IVS4ise/FO7APJASucEgsujiPBWKXgMS3ySBvgvTKSmw6wAzx saTEwRU3WCYwSsxCsnkWks2zkGyehWTFAkaWVYyiqQXJBcVJ6UWGesWJucWleel6yfm5mxgh yaR3B+PtA9aHGJOB1k9klhJNzgcmo7ySeENjMyMLUxNTYyNzSzPShJXEedVarAOFBNITS1Kz U1MLUovii0pzUosPMTJxcEo1ME6YMN/65iV/prNR/tft2h9MavuZtvzv4aOpKql7njDX97Eo 2749lLrTdv6SougnE2Y2W8xLe360r/NNk+8xqRtfwmZu93gb+m11sJp2lY1+n2XhD9ukB6Wv H3SfXHPU78N3rVeWyVtOLGDNb3pn9XWTnsIs0dY0+dY7Yvfefr1y5PujeeqqdyWVWIozEg21 mIuKEwGtE56uPAMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpjk+LIzCtJLcpLzFFi42I5/e+xgK5qZ1KgwdvD+hbN/7ezWixpyrA4 MPshq8WrMxvZLC4vvMRq8f2GqUXvgqtsFpseX2O1uLxrDpvF2XnH2SxmnN/HZLGiaSujxeKL y5ktdq9cwmJxbMYSRounD5qYHAQ81sxbw+jRN+Uqm8eTTRcZPRZsKvW4c20Pm8fmJfUe52cs ZPT4vqMXqGDLKkaPny91PD5vkgvgjmpgtMlITUxJLVJIzUvOT8nMS7dV8g6Od443NTMw1DW0 tDBXUshLzE21VXLxCdB1y8wB+kZJoSwxpxQoFJBYXKykb4dpQmiIm64FTGOErm9IEFyPkQEa SFjHmHGu/y9jwX/lik0t95kbGFdIdjFyckgImEhMuraJEcIWk7hwbz1bFyMXh5DAIkaJ9e/3 s0M4vxgltrbPAqtiE1CT+PLlMDuILSJgLjFh1Q+wDmaBI6wSayb+ZwVJCAkUSjzsABnFycEp YCex5O5sJhBbWCBC4srzx2A2i4CqxPz3B8HqeQVsJe7PamKBsAUlfky+B2YzC2hJrN95nAnC lpfYvOYtcxcjB9Cp6hKP/upC3GAl8WHxQ6hyEYl9L94xTmAUmoVk0iwkk2YhmTQLScsCRpZV jKKpBckFxUnpuYZ6xYm5xaV56XrJ+bmbGMGp6pnUDsaVDRaHGAU4GJV4eCV/JAYKsSaWFVfm HmKU4GBWEuF9WJsUKMSbklhZlVqUH19UmpNafIgxGejRicxSosn5wDSaVxJvaGxiZmRpZGZh ZGJuTpqwkjjvgVbrQCGB9MSS1OzU1ILUIpgtTBycUg2M24t9Jy+NPfDkjPNiyea1vHNX7Hft WRf2w5Q7X9Y+6HCCbHFG85Yty8VPhan/vv3n3Ttz3c081yatUdwQdTbl4sTTzDsErCymrfuZ FMK2immO/XXZH/vuGfL2Ppi2Pusca/SeDRW/cuRrtEyLmLWfPHJ8JKJwxWhSwOXXPYoiWfeV 2yy4Phb/V2Ipzkg01GIuKk4EAGnJ15KZAwAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4730 Lines: 127 On Saturday, March 23, 2013 1:09 PM, Jingoo Han wrote: > > Exynos5440 has two PCIe controllers which can be used as root complex > for PCIe interface. > > Signed-off-by: Jingoo Han > --- > arch/arm/boot/dts/exynos5440-ssdk5440.dts | 8 +++++++ > arch/arm/boot/dts/exynos5440.dtsi | 32 +++++++++++++++++++++++++++++ > 2 files changed, 40 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts > index a21eb4c..746f9fc 100644 > --- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts > +++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts > @@ -34,4 +34,12 @@ > clock-frequency = <50000000>; > }; > }; > + > + pcie0@40000000 { > + reset-gpio = <5>; > + }; > + > + pcie1@60000000 { > + reset-gpio = <22>; > + }; > }; > diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi > index c374a31..41b2d2c 100644 > --- a/arch/arm/boot/dts/exynos5440.dtsi > +++ b/arch/arm/boot/dts/exynos5440.dtsi > @@ -178,4 +178,36 @@ > clocks = <&clock 21>; > clock-names = "rtc"; > }; > + > + pcie0@40000000 { > + compatible = "samsung,exynos5440-pcie"; > + reg = <0x40000000 0x4000 > + 0x290000 0x1000 > + 0x270000 0x1000 > + 0x271000 0x40>; > + interrupts = <0 20 0>, <0 21 0>, <0 22 0>; > + #address-cells = <3>; > + #size-cells = <2>; > + device_type = "pci"; > + bus-range = <0x0 0xf>; > + ranges = <0x00000800 0 0x40000000 0x40000000 0 0x00200000 /* configuration space */ > + 0x81000000 0 0 0x40200000 0 0x00004000 /* downstream I/O */ > + 0x82000000 0 0 0x40204000 0 0x10000000>; /* non-prefetchable memory */ > + }; > + > + pcie1@60000000 { > + compatible = "samsung,exynos5440-pcie"; > + reg = <0x60000000 0x4000 > + 0x2a0000 0x1000 > + 0x272000 0x1000 > + 0x271040 0x40>; > + interrupts = <0 23 0>, <0 24 0>, <0 25 0>; > + #address-cells = <3>; > + #size-cells = <2>; > + device_type = "pci"; > + bus-range = <0x0 0xf>; > + ranges = <0x00000800 0 0x60000000 0x60000000 0 0x00200000 /* configuration space */ > + 0x81000000 0 0 0x60200000 0 0x00004000 /* downstream I/O */ > + 0x82000000 0 0 0x60204000 0 0x10000000>; /* non-prefetchable memory */ > + }; Hi Jason, I have a question. Now, I am reviewing the Tegra PCIe, Marvell PCIe patchset. However, in the case of Exynos PCIe, 'downstream I/O' and 'non-prefetchable memory' are different between PCIe0 and PCIe1. These regions are not shared. PCIe0: ranges = <0x00000800 0 0x40000000 0x40000000 0 0x00200000 /* configuration space */ 0x81000000 0 0 0x40200000 0 0x00004000 /* downstream I/O */ 0x82000000 0 0 0x40204000 0 0x10000000>; /* non-prefetchable memory */ PCIe1: ranges = <0x00000800 0 0x40000000 0x40000000 0 0x00200000 /* configuration space */ 0x81000000 0 0 0x40200000 0 0x00004000 /* downstream I/O */ 0x82000000 0 0 0x40204000 0 0x10000000>; /* non-prefetchable memory */ PCIe0 uses 0x40000000~0x5fffffff, PCI1 uses 0x60000000~0x7fffffff. How can I handle this? :) The following is right? + pcie-controller { ..... + ranges = <0x82000000 0 0x40000000 0x40000000 0 0x00200000 /* port 0 registers */ + 0x82000000 0 0x60000000 0x60000000 0 0x00200000 /* port 1 registers */ + 0x81000000 0 0 0x40200000 0 0x00004000 /* port 0 downstream I/O */ + 0x81000000 0 0 0x60200000 0 0x00004000 /* port 1 downstream I/O */ + 0x82000000 0 0x40204000 0x40204000 0 0x10000000>; /* port 0 non-prefetchable memory */ + 0x82000000 0 0x40204000 0x60204000 0 0x10000000>; /* port 1 non-prefetchable memory */ + + pci@1,0 { + device_type = "pci"; + assigned-addresses = <0x82000800 0 0x40000000 0 0x00200000 + 0x81000800 0 0x40200000 0 0x00004000 + 0x81000800 0 0x40204000 0 0x10000000>; ..... + pci@2,0 { + device_type = "pci"; + assigned-addresses = <0x82000800 0 0x60000000 0 0x00200000 + 0x81000800 0 0x60200000 0 0x00004000 + 0x81000800 0 0x60204000 0 0x10000000>; Best regards, Jingoo Han > }; > -- > 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/