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  • Autodetect SDRAM size in uBoot Bootloader via ARMv7 processor exception handler

    Hi There,

    I am writing some bootload code for the TI Sitara AM5726 processor which has Dual Arm-v7 Cortex-A15  cores. The uBoot bootloader is the code that runs before starting the Linux Kernel and is responsible for configuring the extents of the SDRAM…

  • Precise abort vs synchronous abort in armv7

    I am new to arm architecture. I am reading exception handling from ARM cortex-A series programming guide. I have confusion about the technical difference between precise abort and synchronous abort or imprecise abort and synchronous abort. Are they refer…

  • armv7a/armv8 : Undefined Abort Exception and MMU

    Hi !

    When MMU is enabled, and a undefined abort exception is triggered, are we sure that the address stored in the `lr` / `elr_elx` registers is actually mapped by the MMU, or should I check that before trying to access the address ?

    Best,

    V.