• How get ARMv7 cache size

    Hi everybody!!

    I have a question on how get cache size on ARM v7-A, more specifically on A9 (or A7 or A15).

    In accordance with the TRM at page 1529 I get the value from CSSIDR register and I compute the cache size. More precisely, I do cache size = num…

  • Questions about Generic Timer in ARMv8

    When two clusters(Big/Little) exist in SoC, the timer can be used to support Synchronization between two clusters.

    But How to understand "Synchronization", anybody can tell me some typical application context? I am really confused......

    And, if…

  • Non-Cacheable memory and DMA on armv7a

    Hi !

    Consider a micro-kernel (not Linux) where device drivers are userland applications (PL0).

    We would like to use DMA based device, like an Ethernet controller for example. To this mean, the micro kernel allocate some memory to the user application…