aspeed-p2a-ctrl.txt

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 ======================================================================
    2 Device tree bindings for Aspeed AST2400/AST2500 PCI-to-AHB Bridge Control Driver
    3 ======================================================================
    4 
    5 The bridge is available on platforms with the VGA enabled on the Aspeed device.
    6 In this case, the host has access to a 64KiB window into all of the BMC's
    7 memory.  The BMC can disable this bridge.  If the bridge is enabled, the host
    8 has read access to all the regions of memory, however the host only has read
    9 and write access depending on a register controlled by the BMC.
   10 
   11 Required properties:
   12 ===================
   13 
   14  - compatible: must be one of:
   15         - "aspeed,ast2400-p2a-ctrl"
   16         - "aspeed,ast2500-p2a-ctrl"
   17 
   18 Optional properties:
   19 ===================
   20 
   21 - reg: A hint for the memory regions associated with the P2A controller
   22 - memory-region: A phandle to a reserved_memory region to be used for the PCI
   23                 to AHB mapping
   24 
   25 The p2a-control node should be the child of a syscon node with the required
   26 property:
   27 
   28 - compatible : Should be one of the following:
   29                 "aspeed,ast2400-scu", "syscon", "simple-mfd"
   30                 "aspeed,ast2500-scu", "syscon", "simple-mfd"
   31 
   32 Example
   33 ===================
   34 
   35 g4 Example
   36 ----------
   37 
   38 syscon: scu@1e6e2000 {
   39         compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
   40         reg = <0x1e6e2000 0x1a8>;
   41 
   42         p2a: p2a-control {
   43                 compatible = "aspeed,ast2400-p2a-ctrl";
   44                 memory-region = <&reserved_memory>;
   45         };
   46 };

Cache object: ffb20c72ba268127674a000c21c434af

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/misc/aspeed-p2a-ctrl.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/misc/aspeed-p2a-ctrl.txt