T1022: PCIE warning during kernel boot up

hemwant — Tue, 07 Jun 2022 10:33:21 GMT

We are having a customized board with T1022 processor, one of the EP device is connected on PCIE bus 1. The device is properly detected in uboot, on booting the kernel , kernel is throwing some warning , i want to remove those warning for my case.

I am attaching the logs of the kernel along with tlb device-tree and T104xRDB.h file of uboot.

Error/warning highlighted below, for complete logs refer attached log file.

Found FSL PCI host bridge at 0x0000000ffe240000. Firmware bus number: 0->0
PCI host bridge /pcie@ffe240000 ranges:
MEM 0x0000000c00000000..0x0000000c0fffffff -> 0x00000000e0000000
IO 0x0000000ff8000000..0x0000000ff800ffff -> 0x0000000000000000
/pcie@ffe240000: PCICSRBAR @ 0xff000000
setup_pci_atmu: end of DRAM fa000000
/pcie@ffe240000: Setting PCI inbound window greater than memory size
/pcie@ffe240000: Setup 64-bit PCI DMA window
/pcie@ffe240000: WARNING: Outbound window cfg leaves gaps in memory map. Adjusting the memory map could reduce unnecessary bounce buffering.
/pcie@ffe240000: DMA window size is 0xe0000000
Found FSL PCI host bridge at 0x0000000ffe250000. Firmware bus number: 0->1
PCI host bridge /pcie@ffe250000 ranges:
MEM 0x0000000c10000000..0x0000000c2fffffff -> 0x00000000e0000000
IO 0x0000000ff8010000..0x0000000ff802ffff -> 0x0000000000000000
/pcie@ffe250000: PCICSRBAR @ 0xdf000000
setup_pci_atmu: end of DRAM fa000000
/pcie@ffe250000: Setting PCI inbound window greater than memory size
/pcie@ffe250000: Setup 64-bit PCI DMA window
/pcie@ffe250000: DMA window size is 0xdf000000
Found FSL PCI host bridge at 0x0000000ffe260000. Firmware bus number: 0->0
PCI host bridge /pcie@ffe260000 ranges:
MEM 0x0000000c20000000..0x0000000c2fffffff -> 0x00000000e0000000
IO 0x0000000ff8020000..0x0000000ff802ffff -> 0x0000000000000000
/pcie@ffe260000: PCICSRBAR @ 0xff000000
setup_pci_atmu: end of DRAM fa000000
/pcie@ffe260000: Setting PCI inbound window greater than memory size
/pcie@ffe260000: Setup 64-bit PCI DMA window
/pcie@ffe260000: WARNING: Outbound window cfg leaves gaps in memory map. Adjusting the memory map could reduce unnecessary bounce buffering.
/pcie@ffe260000: DMA window size is 0xe0000000
Found FSL PCI host bridge at 0x0000000ffe270000. Firmware bus number: 0->0
PCI host bridge /pcie@ffe270000 ranges:
MEM 0x0000000c30000000..0x0000000c3fffffff -> 0x00000000e0000000
IO 0x0000000ff8030000..0x0000000ff803ffff -> 0x0000000000000000
/pcie@ffe270000: PCICSRBAR @ 0xff000000
setup_pci_atmu: end of DRAM fa000000
/pcie@ffe270000: Setting PCI inbound window greater than memory size
/pcie@ffe270000: Setup 64-bit PCI DMA window
/pcie@ffe270000: WARNING: Outbound window cfg leaves gaps in memory map. Adjusting the memory map could reduce unnecessary bounce buffering.
/pcie@ffe270000: DMA window size is 0xe0000000
software IO TLB [mem 0x29fa1000-0x2dfa1000] (64MB) mapped at [e9fa1000-edfa0fff]

Jan 2 00:23:05 t1042d4rdb kernel: pci 0003:06:00.0: BAR 0: no space for [mem size 0x01000000]
Jan 2 00:23:05 t1042d4rdb kernel: pci 0003:06:00.0: BAR 0: failed to assign [mem size 0x01000000]
Jan 2 00:23:05 t1042d4rdb kernel: pci 0003:06:00.0: PCI bridge to [bus 07]
Jan 2 00:23:05 t1042d4rdb kernel: pci 0003:06:00.0: bridge window [io 0xf1960000-0xf196ffff]
Jan 2 00:23:05 t1042d4rdb kernel: pci 0003:06:00.0: bridge window [mem 0xc30000000-0xc3fffffff]
Jan 2 00:23:05 t1042d4rdb kernel: pci_bus 0003:06: Some PCI device resources are unassigned, try booting with pci=realloc
Jan 2 00:23:06 t1042d4rdb kernel: pps_core: LinuxPPS API ver. 1 registered
Jan 2 00:23:06 t1042d4rdb kernel: pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>

PowerQUICC ProcessorsのトピックT1022: PCIE warning during kernel boot up

T1022: PCIE warning during kernel boot up