From: <Parthiban.Veerasooran@microchip.com>
To: <andrew@lunn.ch>
Cc: <hkallweit1@gmail.com>, <linux@armlinux.org.uk>,
<davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>,
<pabeni@redhat.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<ramon.nordin.rodriguez@ferroamp.se>,
<Horatiu.Vultur@microchip.com>, <Woojung.Huh@microchip.com>,
<Nicolas.Ferre@microchip.com>,
<Thorsten.Kummermehr@microchip.com>
Subject: Re: [PATCH net-next v2 4/6] net: phy: microchip_t1s: fix reset complete status handling
Date: Tue, 23 May 2023 05:30:06 +0000 [thread overview]
Message-ID: <b226c865-d4a7-c126-9e54-60498232b5a5@microchip.com> (raw)
In-Reply-To: <f0769755-6d04-4bf5-a273-c19b1b76f7f6@lunn.ch>
Hi Andrew,
On 22/05/23 6:13 pm, Andrew Lunn wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> On Mon, May 22, 2023 at 05:03:29PM +0530, Parthiban Veerasooran wrote:
>> As per the datasheet DS-LAN8670-1-2-60001573C.pdf, the Reset Complete
>> status bit in the STS2 register to be checked before proceeding for the
>> initial configuration.
>
> Is this the unmaskable interrupt status bit which needs clearing?
Yes, it is non-maskable interrupt.
> There is no mention of interrupts here.
The device will assert the Reset Complete (RESETC) bit in the Status 2
(STS2) register to indicate that it has completed its internal
initialization and is ready for configuration. As the Reset Complete
status is non-maskable, the IRQ_N pin will always be asserted and driven
low following a device reset. Upon reading of the Status 2 register, the
pending Reset Complete status bit will be automatically cleared causing
the IRQ_N pin to be released and pulled high again.
Do you think it makes sense to add these explanation regarding the reset
and interrupt behavior with the above comment for a better understanding?
Note: This explanation is pulled from DS-LAN8670-1-2-60001573C.pdf
Best Regards,
Parthiban V
>
> Andrew
next prev parent reply other threads:[~2023-05-23 5:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-22 11:33 [PATCH net-next v2 0/6] microchip_t1s: Update on Microchip 10BASE-T1S PHY driver Parthiban Veerasooran
2023-05-22 11:33 ` [PATCH net-next v2 1/6] net: phy: microchip_t1s: modify driver description to be more generic Parthiban Veerasooran
2023-05-22 12:27 ` Andrew Lunn
2023-05-22 11:33 ` [PATCH net-next v2 2/6] net: phy: microchip_t1s: replace read-modify-write code with phy_modify_mmd Parthiban Veerasooran
2023-05-22 12:31 ` Andrew Lunn
2023-05-23 6:15 ` Parthiban.Veerasooran
2023-05-22 11:33 ` [PATCH net-next v2 3/6] net: phy: microchip_t1s: update LAN867x PHY supported revision number Parthiban Veerasooran
2023-05-22 12:38 ` Andrew Lunn
2023-05-23 6:25 ` Parthiban.Veerasooran
2023-05-22 11:33 ` [PATCH net-next v2 4/6] net: phy: microchip_t1s: fix reset complete status handling Parthiban Veerasooran
2023-05-22 12:43 ` Andrew Lunn
2023-05-23 5:30 ` Parthiban.Veerasooran [this message]
2023-05-23 12:23 ` Andrew Lunn
2023-05-24 7:24 ` Parthiban.Veerasooran
2023-05-24 7:31 ` Parthiban.Veerasooran
2023-05-24 12:03 ` Andrew Lunn
2023-05-24 13:21 ` Parthiban.Veerasooran
2023-05-22 11:33 ` [PATCH net-next v2 5/6] net: phy: microchip_t1s: remove unnecessary interrupts disabling code Parthiban Veerasooran
2023-05-22 12:45 ` Andrew Lunn
2023-05-22 11:33 ` [PATCH net-next v2 6/6] net: phy: microchip_t1s: add support for Microchip LAN865x Rev.B0 PHYs Parthiban Veerasooran
2023-05-22 12:56 ` Andrew Lunn
2023-05-23 6:13 ` Parthiban.Veerasooran
2023-05-23 12:29 ` Andrew Lunn
2023-05-24 7:25 ` Parthiban.Veerasooran
2023-05-22 15:02 ` Simon Horman
2023-05-23 5:33 ` Parthiban.Veerasooran
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