• Rojhalat Ibrahim's avatar
    reset-socfpga: Fix nr_resets property · d518d9ca
    Rojhalat Ibrahim authored
    The SoC-FPGA reset controller driver defines NR_BANKS as 4 and uses that define
    for two unrelated purposes. It is used
    1. as an increment for reset line banks which are 32-bit registers with 4-byte
    aligned addresses.
    2. as the total number of reset line banks which together with the number of
    resets per bank (32) limits the total number of useable resets to 128 and the
    highest useable reset ID to 127.
    
    This is clearly wrong as there are resets with higher IDs than 127 defined in
    include/dt-bindings/reset/altr,rst-mgr.h and altr,rst-mgr-a10.h.
    
    The patch introduces a new define BANK_INCREMENT for calculating the register
    addresses as before and increases NR_BANKS to 8 for useable reset IDs up to 255.
    Signed-off-by: default avatarRojhalat Ibrahim <imr@rtschenk.de>
    Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
    d518d9ca
reset-socfpga.c 3.97 KB