From: Arun Ramadoss <arun.ramadoss@microchip.com>
To: <linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>
Cc: Woojung Huh <woojung.huh@microchip.com>,
<UNGLinuxDriver@microchip.com>, Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
"Russell King" <linux@armlinux.org.uk>,
Tristram Ha <Tristram.Ha@microchip.com>
Subject: [Patch net-next 2/3] net: dsa: microchip: lan937x: clear the POR_READY_INT status bit
Date: Fri, 2 Sep 2022 16:02:09 +0530 [thread overview]
Message-ID: <20220902103210.10743-3-arun.ramadoss@microchip.com> (raw)
In-Reply-To: <20220902103210.10743-1-arun.ramadoss@microchip.com>
In the lan937x_reset_switch(), it masks all the switch and port
registers. In the Global_Int_status register, POR ready bit is write 1
to clear bit and all other bits are read only. So, this patch clear the
por_ready_int status bit by writing 1.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
---
drivers/net/dsa/microchip/lan937x_main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/dsa/microchip/lan937x_main.c b/drivers/net/dsa/microchip/lan937x_main.c
index 7b464f1fb5d8..0466c4d0b10c 100644
--- a/drivers/net/dsa/microchip/lan937x_main.c
+++ b/drivers/net/dsa/microchip/lan937x_main.c
@@ -225,6 +225,10 @@ int lan937x_reset_switch(struct ksz_device *dev)
if (ret < 0)
return ret;
+ ret = ksz_write32(dev, REG_SW_INT_STATUS__4, POR_READY_INT);
+ if (ret < 0)
+ return ret;
+
ret = ksz_write32(dev, REG_SW_PORT_INT_MASK__4, 0xFF);
if (ret < 0)
return ret;
--
2.36.1
next prev parent reply other threads:[~2022-09-02 10:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 10:32 [Patch net-next 0/3] net: dsa: microchip: lan937x: enable interrupt for internal phy link detection Arun Ramadoss
2022-09-02 10:32 ` [Patch net-next 1/3] net: dsa: microchip: add reference to ksz_device inside the ksz_port Arun Ramadoss
2022-09-02 16:00 ` Florian Fainelli
2022-09-02 10:32 ` Arun Ramadoss [this message]
2022-09-02 16:01 ` [Patch net-next 2/3] net: dsa: microchip: lan937x: clear the POR_READY_INT status bit Florian Fainelli
2022-09-02 10:32 ` [Patch net-next 3/3] net: dsa: microchip: lan937x: add interrupt support for port phy link Arun Ramadoss
2022-09-05 13:20 ` [Patch net-next 0/3] net: dsa: microchip: lan937x: enable interrupt for internal phy link detection patchwork-bot+netdevbpf
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