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  1. T

    Waiting for root device

    my kernel hanging at [ 3.534354] No soundcards found. [ 3.545614] Waiting for root device PARTUUID=0aae3da8-04... what could be the reason ?
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    how to initiate message write request in pcie rootcomplex using linux

    how to initiate message write request in pcie rootcomplex using linux
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    how to setup outbound window on PCIe endpoint side

    how to setup outbound window on PCIe endpoint side
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    Does PCI specification has RC to EP MSI support

    Does PCI specification has RC to EP MSI support
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    how to raise msi interrupt in endpoint from rootcomplex side

    how to raise msi interrupt in endpoint from rootcomplex side
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    how to configure and use MSI interrupts in PCIE

    how to configure and use MSI interrupts in PCIE
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    which driver in uboot assigns bar addresses to endpoint in rootcomplex

    which driver in uboot assigns bar addresses to endpoint in rootcomplex
  8. T

    tell me how to send data to EP using dma . Give example code

    tell me how to send data to EP using dma . Give example code
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    In uboot, rcside, rc assigned BAR address to EP. Now i want to change that BAR address. How may i do that.

    In uboot, rcside, rc assigned BAR address to EP. Now i want to change that BAR address. How may i do that. Will the memory will be assigned to the new BAR address if i change it ?
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    bar ressignment in RC to EP

    How to ressign BARs in EP from RC
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    how to create outbound window in endpoint . explain with an example

    how to create outbound window in endpoint . explain with an example
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    outbound config

    1. Root port connected to Bus-0 with Bus.Device.Function = 00.00.0 (Memory behind this bridge is in range 0x40000000 - 0x433FFFFF) 2. To 00.00.0, Bus-1 is connected with Bus.Device.Function = 01.00.0 (Memory behind this bridge is in range 0x40000000 - 0x42FFFFFF) 3. To 01.00.0, Bus-2 is...
  13. T

    lspci -t

    root@localhost:~# lspci -t -[0000:00]---00.0-[01-ff]--+-00.0-[02-06]--+-01.0 | +-02.0-[03]-- | +-03.0-[04]----00.0 | +-04.0-[05]-- |...
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    pcie tlp preparation in linux driver

    pcie tlp preparation in linux driver
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    how luts in ls1046 are useful

    how luts in ls1046 are useful
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    In Linux, I want to print PCIe TLP header everytime i receive data from Rootcomplex. How is it possible. Where should i put print

    In Linux, I want to print PCIe TLP header everytime i receive data from Rootcomplex. How is it possible. Where should i put print
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    Explain with an example configuring of Inbound and Outbound addresses in PCIe (Address Translation)

    Explain with an example configuring of Inbound and Outbound addresses in PCIe (Address Translation)
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    PCIe Endpoint to Endpoint data transfer

    Hi, I have a PCIe Rootcomplex (Custom LS1046A board configured as RC), Endpoint-1 (Custom LS1046A board configured as EP) and Endpoint-2 (Custom IMX8QM board configured as EP). Endpoints are connected to the Root complex through switch (PI7C9X2G1224GP). I want to perform Endpoint-1 to...
  19. T

    Kernel image extraction from RAM

    Hi all, Is it possible to extract Kernel image from RAM if i know the kernel start address and size.
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    Reading virtual address for any physical address

    How to read virtual address for a physical address without using devmem2 command. Is there any function to do so ?
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