From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from foss.arm.com ([217.140.101.70]:45912 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752500AbbGAO0i (ORCPT ); Wed, 1 Jul 2015 10:26:38 -0400 Message-ID: <5593F899.6050306@arm.com> Date: Wed, 01 Jul 2015 15:26:33 +0100 From: James Morse MIME-Version: 1.0 To: Gabriele Paoloni , "Wangzhou (B)" , Bjorn Helgaas , Jingoo Han , Pratyush Anand , Arnd Bergmann , Liviu Dudau , "kishon@ti.com" , "xobs@kosagi.com" , "m-karicheri2@ti.com" , "Minghuan.Lian@freescale.com" CC: "linux-pci@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , Yuanzhichang , Zhudacai , zhangjukuo , qiuzhenfa , "liguozhu@hisilicon.com" Subject: Re: [PATCH v3 2/5] PCI: designware: Add ARM64 support References: <1435743817-19083-1-git-send-email-wangzhou1@hisilicon.com> <1435743817-19083-3-git-send-email-wangzhou1@hisilicon.com> In-Reply-To: Content-Type: text/plain; charset=gbk Sender: linux-pci-owner@vger.kernel.org List-ID: Zhou Wang wrote: > I tested this patch on D02 board of Hisilicon. It works well. > I have compiled the driver with multi_v7_defconfig. However, I don't > have > ARM32 PCIe related board to do test. It will be appreciated if someone > could > help to test it. > > Signed-off-by: Zhou Wang > Signed-off-by: Arnd Bergmann > Signed-off-by: Gabriele Paoloni > Tested-by: Fabrice Gasnier > Tested-by: James Morse Tests on this new series, using the same i.MX 6Quad board, are not working. The network card is no longer detected, and I get a lockup when removing the root bridge and rescanning. Partial dmesg output below. Significantly, the lines: > [ 0.152128] PCI host bridge /soc/pcie@0x01000000 ranges: > [ 0.152142] No bus range found for /soc/pcie@0x01000000, using [bus 00-ff] are new. Both series are applied to v4.1, use the same .config file, and the same dtb. I will investigate further. (Re-testing v2 works, so this isn't an interim hardware failure) Thanks, James root@localhost:~# dmesg | grep -i pci [ 0.126184] PCI: CLS 0 bytes, default 64 [ 0.152128] PCI host bridge /soc/pcie@0x01000000 ranges: [ 0.152142] No bus range found for /soc/pcie@0x01000000, using [bus 00-ff] [ 0.154183] imx6q-pcie 1ffc000.pcie: PCI host bridge to bus 0000:00 [ 0.154201] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.154215] pci_bus 0000:00: root bus resource [??? 0x01f00000-0x01f7ffff flags 0x0] [ 0.154228] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 0.154270] pci_bus 0000:00: root bus resource [mem 0x01000000-0x01efffff] [ 0.154306] pci 0000:00:00.0: [16c3:abcd] type 01 class 0x060400 [ 0.154333] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x000fffff] [ 0.154352] pci 0000:00:00.0: reg 0x38: [mem 0x00000000-0x0000ffff pref] [ 0.154377] pci 0000:00:00.0: IOMMU is currently not supported for PCI [ 0.154429] pci 0000:00:00.0: supports D1 [ 0.154440] pci 0000:00:00.0: PME# supported from D0 D1 D3hot D3cold [ 0.154683] PCI: bus0: Fast back to back transfers disabled [ 0.154806] PCI: bus1: Fast back to back transfers enabled [ 0.154884] pci 0000:00:00.0: BAR 0: assigned [mem 0x01000000-0x010fffff] [ 0.154903] pci 0000:00:00.0: BAR 6: assigned [mem 0x01100000-0x0110ffff pref] [ 0.154917] pci 0000:00:00.0: PCI bridge to [bus 01] [ 0.155145] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt [ 0.155161] pcie_pme 0000:00:00.0:pcie01: service driver pcie_pme loaded [ 0.155279] aer 0000:00:00.0:pcie02: service driver aer loaded [ 1.188840] ehci-pci: EHCI PCI platform driver [ 1.232518] ohci-pci: OHCI PCI platform driver