AnsweredAssumed Answered

T2080RDB (ACCESS TO C293 Coprocessor)

Question asked by manolo ruiz on Jan 25, 2016
Latest reply on Feb 17, 2016 by Yiping Wang



I am creating a PCI driver to access to the C293 Coprocessador which is in the board T2080RDB. Everything is ok when I load my driver. I can access to two memories:


c20000000-c2fffffff : /pcie@ffe250000

  c20000000-c2fffffff : PCI Bus 0001:01

    c20000000-c200fffff : 0001:01:00.0 --> first memory (1MB)

      c20000000-c200fffff : mem0

    c20100000-c201fffff : 0001:01:00.0 --> Second memory (1MB)

      c20100000-c201fffff : mem1


I want to know what is inside of these memories. I have checked the document c29xRM but I cannot find 2 memories of 1 MBytes. Any idea where can I find theses information? what is this memories for or what I can do with them?



when I type lspci -v I can see the following:


0001:01:00.0 Power PC: Freescale Semiconductor Inc Device 0808 (rev 10) (prog-if 01)

        Flags: bus master, fast devsel, latency 0, IRQ 41

        Memory at c20000000 (32-bit, non-prefetchable) [size=1M]

        Memory at c20100000 (32-bit, prefetchable) [size=1M]

        Capabilities: [44] Power Management version 3

        Capabilities: [4c] Express Endpoint, MSI 00

        Capabilities: [88] MSI: Enable- Count=1/16 Maskable- 64bit+

        Capabilities: [100] Advanced Error Reporting

        Kernel driver in use: pci