[PATCH] net: dsa: mt7530: disable LEDs before reset

Andrew Lunn andrew at lunn.ch
Mon Mar 11 18:03:21 PDT 2024


> (b) When a cable attached to an active peer is connected to
> Port 3 (lan4) before reset, the incorrect crystal frequency
> selection (0b11 = 25MHz) always occurs:
> 
>               [7]      [8]     [10]    [12]
>               :        :       :       :
>               _________         ______________________________________
> ESW_P4_LED_0           |_______|
>               _________         _______
> ESW_P3_LED_0           |_______|       |______________________________
> 
>                         :     : :     :
>                         [9]...: [11]..:
> 
>  [7] Port 4 LED Off. Port 3 LED Off.
>  [8] Signals inverted. (reset_control_assert; reset_control_deassert)
>  [9] Period of 320 usec.
> [10] Signals inverted.
> [11] Period of 300 usec.
> [12] Signals reflect the bootstrapped configuration.

Shame the patch has already been accepted. The text in this email
would of made a cool commit message.

      Andrew



More information about the linux-arm-kernel mailing list