On Tue, Oct 17, 2017 at 12:37:40PM -0500, Bjorn Helgaas wrote: > On Wed, Sep 27, 2017 at 05:28:33PM +0530, Manikanta Maddireddy wrote: > > Tegra186 has three PCIe controllers which can be operated > > in 401, 211 or 111 lane configurations. Tegra TX2 platform > > has x4 and M.2 Key E PCIe slots, these patches enables > > x4 slot. BPMP programs UPHY lane0 ownership to USB, > > so M.2 Key E PCIe will not work. > > > > Testing: x4 slot is verified with PCIe based USB3.1 card. > > PCIe link up, usb flash drive mounting and file copy are > > verified. These patches are also verified by > > Mikko Perttunen <mperttunen@xxxxxxxxxx> with an Intel 82574L > > ethernet card. > > > > Patch V2 adds soc->program_uphy check for phy_exit call. > > > > Pasting PCIe link up logs below. > > > > [ 1.452512] tegra-pcie 10003000.pcie: 4x1, 1x1 configuration > > [ 1.452723] tegra-pcie 10003000.pcie: Failed to get supply 'dvdd-pex': -517 > > [ 1.561824] ehci-pci: EHCI PCI platform driver > > [ 1.591587] ohci-pci: OHCI PCI platform driver > > [ 3.072464] tegra-pcie 10003000.pcie: 4x1, 1x1 configuration > > [ 3.078989] tegra-pcie 10003000.pcie: probing port 0, using 4 lanes > > [ 3.087272] tegra-pcie 10003000.pcie: Slot present pin change, signature: 00000018 > > [ 3.128818] tegra-pcie 10003000.pcie: PCI host bridge to bus 0000:00 > > [ 3.135174] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > > [ 3.141352] pci_bus 0000:00: root bus resource [mem 0x50100000-0x57ffffff] > > [ 3.148221] pci_bus 0000:00: root bus resource [mem 0x58000000-0x7fffffff pref] > > [ 3.155542] pci_bus 0000:00: root bus resource [bus 00-ff] > > [ 3.161173] pci 0000:00:01.0: [10de:10e5] type 01 class 0x060400 > > [ 3.161188] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x4 may corrupt adjacent RW1C bits > > [ 3.170838] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x4 may corrupt adjacent RW1C bits > > [ 3.180532] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x52 may corrupt adjacent RW1C bits > > [ 3.190305] pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot D3cold > > [ 3.190312] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x4c may corrupt adjacent RW1C bits > > [ 3.200158] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring > > [ 3.208158] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x3e may corrupt adjacent RW1C bits > > [ 3.217918] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x3e may corrupt adjacent RW1C bits > > [ 3.227649] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x3e may corrupt adjacent RW1C bits > > [ 3.237382] pci_bus 0000:00: 2-byte config write to 0000:00:01.0 offset 0x6 may corrupt adjacent RW1C bits > > [ 3.247135] pci 0000:01:00.0: [1b21:1242] type 00 class 0x0c0330 > > [ 3.247157] pci_bus 0000:01: 2-byte config write to 0000:01:00.0 offset 0x4 may corrupt adjacent RW1C bits > > [ 3.256807] pci_bus 0000:01: 2-byte config write to 0000:01:00.0 offset 0x4 may corrupt adjacent RW1C bits > > [ 3.266477] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00007fff 64bit] > > [ 3.266544] pci 0000:01:00.0: enabling Extended Tags > > [ 3.271622] pci 0000:01:00.0: PME# supported from D3hot D3cold > > [ 3.271775] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 > > [ 3.271798] pci 0000:00:01.0: BAR 14: assigned [mem 0x50100000-0x501fffff] > > [ 3.278671] pci 0000:01:00.0: BAR 0: assigned [mem 0x50100000-0x50107fff 64bit] > > [ 3.285993] pci 0000:00:01.0: PCI bridge to [bus 01] > > [ 3.290959] pci 0000:00:01.0: bridge window [mem 0x50100000-0x501fffff] > > [ 3.297763] pci 0000:00:01.0: nv_msi_ht_cap_quirk didn't locate host bridge > > [ 3.304784] pcieport 0000:00:01.0: enabling device (0000 -> 0002) > > [ 3.311014] pcieport 0000:00:01.0: Signaling PME with IRQ 57 > > [ 3.316768] pci 0000:01:00.0: enabling device (0000 -> 0002) > > > > > > Manikanta Maddireddy (4): > > dt-bindings: pci: tegra: Document Tegra186 PCIe DT > > PCI: tegra: Add Tegra186 PCIe support > > I applied these two with Thierry's tested-by and acks to > pci/host-tegra for v4.15, thanks! If you have a changelog update for > the pm_domain question, I can fold that in. Thanks! Thierry
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