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41 results

0006-reset-ath79-fix-reset-sequence-for-AR9344.patch

  • nrb's avatar
    5765d033
    reset: ath79: fix reset sequence for AR9344 · 5765d033
    nrb authored
    
    According to datasheet, on AR9344 the switch and switch analog need to
    be reset first before initiating a full reset.
    
    This fixes sporadic reboot issues. Instead of rebooting, the device will
    just hang. Without this patch, I had failed resets after 5, 20 and 250
    tries. With this patch I have more than 2200 successful resets.
    
    Other chips like AR7100 do not have this specific requirement in the
    datasheet and also the meaning for bits 8 and 12 is slightly different,
    so only perform this sequence on AR9344.
    
    Signed-off-by: default avatarNico Boehr <github-ffs@nicoboehr.de>
    reset: ath79: fix reset sequence for AR9344
    nrb authored
    
    According to datasheet, on AR9344 the switch and switch analog need to
    be reset first before initiating a full reset.
    
    This fixes sporadic reboot issues. Instead of rebooting, the device will
    just hang. Without this patch, I had failed resets after 5, 20 and 250
    tries. With this patch I have more than 2200 successful resets.
    
    Other chips like AR7100 do not have this specific requirement in the
    datasheet and also the meaning for bits 8 and 12 is slightly different,
    so only perform this sequence on AR9344.
    
    Signed-off-by: default avatarNico Boehr <github-ffs@nicoboehr.de>