• Sandeep Nair's avatar
    Documentation: dt: soc: add Keystone Navigator QMSS bindings · a4dfb8c4
    Sandeep Nair authored
    The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
    the main hardware sub system which forms the backbone of the Keystone
    Multi-core Navigator. QMSS consist of queue managers, packed-data structure
    processors(PDSP), linking RAM, descriptor pools and infrastructure
    Packet DMA.
    
    The Queue Manager is a hardware module that is responsible for accelerating
    management of the packet queues. Packets are queued/de-queued by writing or
    reading descriptor address to a particular memory mapped location. The PDSPs
    perform QMSS related functions like accumulation, QoS, or event management.
    Linking RAM registers are used to link the descriptors which are stored in
    descriptor RAM. Descriptor RAM is configurable as internal or external memory.
    
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Kumar Gala <galak@codeaurora.org>
    Cc: Olof Johansson <olof@lixom.net>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Grant Likely <grant.likely@linaro.org>
    Cc: Rob Herring <robh+dt@kernel.org>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Signed-off-by: default avatarSandeep Nair <sandeep_n@ti.com>
    Signed-off-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
    a4dfb8c4
keystone-navigator-qmss.txt 7.92 KB