netdev - Re: [PATCH net-next v5 03/14] net: ethernet: oa_tc6: implement register read operation

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Message-ID: <817aa1a7-9f19-48a1-9402-1c95225bed3e@lunn.ch>
Date: Sun, 11 Aug 2024 17:37:40 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
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Subject: Re: [PATCH net-next v5 03/14] net: ethernet: oa_tc6: implement
 register read operation

On Tue, Jul 30, 2024 at 09:38:55AM +0530, Parthiban Veerasooran wrote:
> Implement register read operation according to the control communication
> specified in the OPEN Alliance 10BASE-T1x MACPHY Serial Interface
> document. Control read commands are used by the SPI host to read
> registers within the MAC-PHY. Each control read commands are composed of
> a 32 bits control command header.
> 
> The MAC-PHY ignores all data from the SPI host following the control
> header for the remainder of the control read command. Control read
> commands can read either a single register or multiple consecutive
> registers. When multiple consecutive registers are read, the address is
> automatically post-incremented by the MAC-PHY. Reading any unimplemented
> or undefined registers shall return zero.
> 
> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew