• Paul Walmsley's avatar
    memory: tegra: Add support for a variable-size client ID bitfield · 3c01cf3b
    Paul Walmsley authored
    Recent versions of the Tegra MC hardware extend the size of the client
    ID bitfield in the MC_ERR_STATUS register by one bit.  While one could
    simply extend the bitfield for older hardware, that would allow data
    from reserved bits into the driver code, which is generally a bad idea
    on principle.  So this patch instead passes in the client ID mask from
    from the per-SoC MC data.
    
    There's no MC support for T210 (yet), but when that support winds up
    in the kernel, the appropriate soc->client_id_mask value for that chip
    will be 0xff.
    
    Based on an original patch by David Ung <davidu@nvidia.com>.
    Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
    Cc: Paul Walmsley <pwalmsley@nvidia.com>
    Cc: Thierry Reding <treding@nvidia.com>
    Cc: David Ung <davidu@nvidia.com>
    Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
    3c01cf3b
mc.h 2.41 KB