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Pandaboard Memory and IO Mapping Table

Midson
Intellectual 835 points

Like in Section 1.5 (Memory and IO Mapping) of OMAP3 EVM hardware user guide, Is it possible to get the Memory and IO Mapping table for OMAP4/Panda? I checked in OMAP4430 TRM. Unable to locate it. Any pointers?

  • 0
    TI__Expert 3245 points

    The OMAP4 IO memory mapping is shown in chapter 2 (Memory Mapping) of the TRM. The L3 and L4 Memory Space (sections 2.2 and 2.3) should show you what you are looking for. Cheers Jon

  • 0 in reply to Jon Hunter
    Intellectual 835 points

    Thank Jon.

    Basically I am looking for address range allocated to each GPMC CS. From the TRM, I am able to get only the 1GB allocated to GPMC and not for each GPMC CS.

    In the OMAP3 HUG, the address range for each GPMC Chip Select is specified. But in the OMAP4 TRM, the address range for each GPMC CS is not clearly visible and same is not available in Panda HUG also. How to decide the address range for a specific GPMC CS, with-out knowing the address allocated to other GPMC CS? Any pointers?

  • 0 in reply to Midson
    TI__Expert 3245 points

    Yes, so the GPMC controller has 1GB of address space allocated to it. Address space for each CS within the GPMC address range is configurable. When you configure the GPMC controller you specify the base address and range for each CS within the 1GB range (see section 15.4.4.9 "Address Decoder and Chip-Select Configuration" in the TRM). The panda board only appears to bring out the GPMC signals to an expansion connector and so it probably does not configure or defined a memory map for the GPMC CSs. Hope this helps. Jon

  • 0 in reply to Jon Hunter
    Intellectual 835 points

    Thanks Jon. I hope, Mask Field will help me.