Interfacing (DSI, CSI, I2C, etc.) • Re: CM5 PCIe and FPGA

Code:

@raspberrypi:~ $ dmesg | grep -i pci[    0.000000] Kernel command line: reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe cgroup_disable=memory numa_policy=interleave nvme.max_host_mem_size_mb=0  numa=fake=8 system_heap.max_order=0 smsc95xx.macaddr=2C:CF:67:C5:D1:14 vc_mem.mem_base=0x3fc00000 vc_mem.mem_size=0x40000000  console=ttyAMA10,115200 console=tty1 root=PARTUUID=d18213ff-02 rootfstype=ext4 fsck.repair=yes pcie-brcmstb.trace_ltssm=1 pci=pcie_bus_safe pcie_aspm=off pcie_port_pm=off dyndbg="file drivers/pci/* +p" rootwait quiet splash plymouth.ignore-serial-consoles cfg80211.ieee80211_regdom=NL[    0.000000] PCIe ASPM is disabled[    0.000000] Unknown kernel command line parameters "splash dyndbg=file drivers/pci/* +p", will be passed to user space.[    0.039228] PCI: CLS 0 bytes, default 64[    0.350214] brcm-pcie 1000110000.pcie: host bridge /axi/pcie@1000110000 ranges:[    0.350219] brcm-pcie 1000110000.pcie:   No bus range found for /axi/pcie@1000110000, using [bus 00-ff][    0.350226] brcm-pcie 1000110000.pcie:      MEM 0x1b80000000..0x1bffffffff -> 0x0080000000[    0.350230] brcm-pcie 1000110000.pcie:      MEM 0x1800000000..0x1b7fffffff -> 0x0400000000[    0.350236] brcm-pcie 1000110000.pcie:   IB MEM 0x0000000000..0x0fffffffff -> 0x1000000000[    0.350239] brcm-pcie 1000110000.pcie:   IB MEM 0x1000131000..0x1000131fff -> 0xfffffff000[    0.351563] brcm-pcie 1000110000.pcie: PCI host bridge to bus 0001:00[    0.351566] pci_bus 0001:00: root bus resource [bus 00-ff][    0.351569] pci_bus 0001:00: root bus resource [mem 0x1b80000000-0x1bffffffff] (bus address [0x80000000-0xffffffff])[    0.351572] pci_bus 0001:00: root bus resource [mem 0x1800000000-0x1b7fffffff pref] (bus address [0x400000000-0x77fffffff])[    0.351582] pci 0001:00:00.0: [14e4:2712] type 01 class 0x060400 PCIe Root Port[    0.351588] pci 0001:00:00.0: PCI bridge to [bus 00][    0.351590] pci 0001:00:00.0:   bridge window [mem 0x00000000-0x000fffff][    0.351594] pci 0001:00:00.0:   bridge window [mem 0x00000000-0x000fffff 64bit pref][    0.351609] pci 0001:00:00.0: PME# supported from D0 D3hot[    0.352213] pci 0001:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring[    0.452228] brcm-pcie 1000110000.pcie: LTSSM trace captured 25 events (max 64):[    0.452231] brcm-pcie 1000110000.pcie: 23537 : 81 - Detect.Active[    0.452233] brcm-pcie 1000110000.pcie: 23538 : 80 - Detect.Quiet[    0.452235] brcm-pcie 1000110000.pcie: 35538 : 81 - Detect.Active[    0.452236] brcm-pcie 1000110000.pcie: 35539 : 80 - Detect.Quiet[    0.452238] brcm-pcie 1000110000.pcie: 35539 : 81 - Detect.Active[    0.452240] brcm-pcie 1000110000.pcie: 35539 : 80 - Detect.Quiet[    0.452241] brcm-pcie 1000110000.pcie: 47539 : 81 - Detect.Active[    0.452243] brcm-pcie 1000110000.pcie: 47539 : 80 - Detect.Quiet[    0.452244] brcm-pcie 1000110000.pcie: 47539 : 81 - Detect.Active[    0.452246] brcm-pcie 1000110000.pcie: 47539 : 80 - Detect.Quiet[    0.452247] brcm-pcie 1000110000.pcie: 47539 : 81 - Detect.Active[    0.452249] brcm-pcie 1000110000.pcie: 47539 : 80 - Detect.Quiet[    0.452250] brcm-pcie 1000110000.pcie: 59539 : 81 - Detect.Active[    0.452252] brcm-pcie 1000110000.pcie: 59539 : 80 - Detect.Quiet[    0.452253] brcm-pcie 1000110000.pcie: 59539 : 81 - Detect.Active[    0.452255] brcm-pcie 1000110000.pcie: 59540 : 80 - Detect.Quiet[    0.452257] brcm-pcie 1000110000.pcie: 59540 : 81 - Detect.Active[    0.452258] brcm-pcie 1000110000.pcie: 59540 : 80 - Detect.Quiet[    0.452260] brcm-pcie 1000110000.pcie: 71540 : 81 - Detect.Active[    0.452261] brcm-pcie 1000110000.pcie: 71540 : 80 - Detect.Quiet[    0.452263] brcm-pcie 1000110000.pcie: 71540 : 81 - Detect.Active[    0.452264] brcm-pcie 1000110000.pcie: 71540 : 80 - Detect.Quiet[    0.452266] brcm-pcie 1000110000.pcie: 71541 : 81 - Detect.Active[    0.452267] brcm-pcie 1000110000.pcie: 71541 : 09 - Polling.Active[    0.452269] brcm-pcie 1000110000.pcie: 95541 : 0c - Polling.Compliance[    0.792302] brcm-pcie 1000110000.pcie: link down[    0.796969] pci_bus 0001:01: busn_res: [bus 01-ff] end is updated to 01[    0.796976] pci 0001:00:00.0: PCI bridge to [bus 01][    0.796979] pci_bus 0001:00: resource 4 [mem 0x1b80000000-0x1bffffffff][    0.796981] pci_bus 0001:00: resource 5 [mem 0x1800000000-0x1b7fffffff pref][    0.796985] pci 0001:00:00.0: Max Payload Size set to  512/ 512 (was  128), Max Read Rq  512[    0.797067] pcieport 0001:00:00.0: PME: Signaling with IRQ 39[    0.797117] pcieport 0001:00:00.0: AER: enabled with IRQ 39[    0.797184] pci_bus 0001:01: busn_res: [bus 01] is released[    0.797221] pci_bus 0001:00: busn_res: [bus 00-ff] is released[    0.797317] brcm-pcie 1000120000.pcie: host bridge /axi/pcie@1000120000 ranges:[    0.797321] brcm-pcie 1000120000.pcie:   No bus range found for /axi/pcie@1000120000, using [bus 00-ff][    0.797327] brcm-pcie 1000120000.pcie:      MEM 0x1f00000000..0x1ffffffffb -> 0x0000000000[    0.797331] brcm-pcie 1000120000.pcie:      MEM 0x1c00000000..0x1effffffff -> 0x0400000000[    0.797336] brcm-pcie 1000120000.pcie:   IB MEM 0x1f00000000..0x1f003fffff -> 0x0000000000[    0.797340] brcm-pcie 1000120000.pcie:   IB MEM 0x0000000000..0x0fffffffff -> 0x1000000000[    0.797343] brcm-pcie 1000120000.pcie:   IB MEM 0x1000130000..0x1000130fff -> 0xfffffff000[    0.798582] brcm-pcie 1000120000.pcie: PCI host bridge to bus 0002:00[    0.798585] pci_bus 0002:00: root bus resource [bus 00-ff][    0.798587] pci_bus 0002:00: root bus resource [mem 0x1f00000000-0x1ffffffffb] (bus address [0x00000000-0xfffffffb])[    0.798589] pci_bus 0002:00: root bus resource [mem 0x1c00000000-0x1effffffff pref] (bus address [0x400000000-0x6ffffffff])[    0.798596] pci 0002:00:00.0: [14e4:2712] type 01 class 0x060400 PCIe Root Port[    0.798602] pci 0002:00:00.0: PCI bridge to [bus 00][    0.798604] pci 0002:00:00.0:   bridge window [mem 0x1f80000000-0x1fbfffffff][    0.798618] pci 0002:00:00.0: PME# supported from D0 D3hot[    0.799197] pci 0002:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring[    0.899211] brcm-pcie 1000120000.pcie: LTSSM trace captured 17 events (max 64):[    0.899214] brcm-pcie 1000120000.pcie: 23543 : 81 - Detect.Active[    0.899215] brcm-pcie 1000120000.pcie: 23543 : 09 - Polling.Active[    0.899217] brcm-pcie 1000120000.pcie: 24203 : 0a - Polling.Configuration[    0.899219] brcm-pcie 1000120000.pcie: 24269 : 10 - Configuration.Link[    0.899221] brcm-pcie 1000120000.pcie: 24269 : 11 - Configuration.Linkwidth.Accept[    0.899222] brcm-pcie 1000120000.pcie: 24270 : 12 - Configuration.Lanenum.Wait[    0.899224] brcm-pcie 1000120000.pcie: 24270 : 13 - Confguration.Lanenum.Accept[    0.899226] brcm-pcie 1000120000.pcie: 24270 : 14 - Confguration.Complete[    0.899227] brcm-pcie 1000120000.pcie: 24272 : 15 - Configuration.Idle[    0.899229] brcm-pcie 1000120000.pcie: 24272 : 01 - L0[    0.899231] brcm-pcie 1000120000.pcie: 24273 : 20 - Recovery.RcvrLock[    0.899233] brcm-pcie 1000120000.pcie: 24274 : 21 - Recovery.RcvrCfg[    0.899234] brcm-pcie 1000120000.pcie: 24277 : 70 - Recovery.Speed_Change[    0.899236] brcm-pcie 1000120000.pcie: 24278 : 20 - Recovery.RcvrLock[    0.899237] brcm-pcie 1000120000.pcie: 24279 : 21 - Recovery.RcvrCfg[    0.899239] brcm-pcie 1000120000.pcie: 24280 : 22 - Recovery.Idle[    0.899240] brcm-pcie 1000120000.pcie: 24281 : 01 - L0[    1.000305] brcm-pcie 1000120000.pcie: clkreq-mode set to default[    1.000307] brcm-pcie 1000120000.pcie: link up, 5.0 GT/s PCIe x4 (!SSC)[    1.000325] pci 0002:01:00.0: [1de4:0001] type 00 class 0x020000 PCIe Endpoint[    1.000337] pci 0002:01:00.0: BAR 0 [mem 0xffffc000-0xffffffff][    1.000343] pci 0002:01:00.0: BAR 1 [mem 0xffc00000-0xffffffff][    1.000349] pci 0002:01:00.0: BAR 2 [mem 0xffff0000-0xffffffff][    1.000411] pci 0002:01:00.0: supports D1[    1.000413] pci 0002:01:00.0: PME# supported from D0 D1 D3hot D3cold[    1.000474] pci_bus 0002:01: busn_res: [bus 01-ff] end is updated to 01[    1.000480] pci 0002:00:00.0: bridge window [mem 0x1f00000000-0x1f005fffff]: assigned[    1.000482] pci 0002:01:00.0: BAR 1 [mem 0x1f00000000-0x1f003fffff]: assigned[    1.000486] pci 0002:01:00.0: BAR 2 [mem 0x1f00400000-0x1f0040ffff]: assigned[    1.000490] pci 0002:01:00.0: BAR 0 [mem 0x1f00410000-0x1f00413fff]: assigned[    1.000494] pci 0002:00:00.0: PCI bridge to [bus 01][    1.000496] pci 0002:00:00.0:   bridge window [mem 0x1f00000000-0x1f005fffff][    1.000499] pci_bus 0002:00: resource 4 [mem 0x1f00000000-0x1ffffffffb][    1.000501] pci_bus 0002:00: resource 5 [mem 0x1c00000000-0x1effffffff pref][    1.000503] pci_bus 0002:01: resource 1 [mem 0x1f00000000-0x1f005fffff][    1.000506] pci 0002:00:00.0: Max Payload Size set to  256/ 512 (was  128), Max Read Rq  512[    1.000513] pci 0002:01:00.0: Max Payload Size set to  256/ 256 (was  128), Max Read Rq  512[    1.000552] pcieport 0002:00:00.0: enabling device (0000 -> 0002)[    1.000570] pcieport 0002:00:00.0: PME: Signaling with IRQ 40[    1.000609] pcieport 0002:00:00.0: AER: enabled with IRQ 40[    1.213749]     dyndbg=file drivers/pci/* +p