From: Jerry Ray <jerry.ray@microchip.com>
To: 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>,
<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Jerry Ray <jerry.ray@microchip.com>
Subject: [PATCH v2 2/2] net: dsa: LAN9303: Add basic support for LAN9354
Date: Fri, 2 Sep 2022 16:30:21 -0500 [thread overview]
Message-ID: <20220902213021.23151-2-jerry.ray@microchip.com> (raw)
In-Reply-To: <20220902213021.23151-1-jerry.ray@microchip.com>
Adding support for the LAN9354 device by allowing it to use
the LAN9303 DSA driver. These devices have the same underlying
access and control methods and from a feature set point of view
the LAN9354 is a superset of the LAN9303.
The MDIO access method has been tested on a SAMA5D3-EDS board
with a LAN9354 RMII daughter card.
While the SPI access method should also be the same, it has not
been tested and as such is not included at this time.
Signed-off-by: Jerry Ray <jerry.ray@microchip.com>
---
drivers/net/dsa/Kconfig | 6 +++---
drivers/net/dsa/lan9303-core.c | 11 ++++++++---
drivers/net/dsa/lan9303_mdio.c | 1 +
3 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index d8ae0e8af2a0..07507b4820d7 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -76,7 +76,7 @@ config NET_DSA_SMSC_LAN9303
select NET_DSA_TAG_LAN9303
select REGMAP
help
- This enables support for the SMSC/Microchip LAN9303 3 port ethernet
+ This enables support for the Microchip LAN9303/LAN9354 3 port ethernet
switch chips.
config NET_DSA_SMSC_LAN9303_I2C
@@ -90,11 +90,11 @@ config NET_DSA_SMSC_LAN9303_I2C
for I2C managed mode.
config NET_DSA_SMSC_LAN9303_MDIO
- tristate "SMSC/Microchip LAN9303 3-ports 10/100 ethernet switch in MDIO managed mode"
+ tristate "Microchip LAN9303/LAN9354 3-ports 10/100 ethernet switch in MDIO managed mode"
select NET_DSA_SMSC_LAN9303
depends on VLAN_8021Q || VLAN_8021Q=n
help
- Enable access functions if the SMSC/Microchip LAN9303 is configured
+ Enable access functions if the Microchip LAN9303/LAN9354 is configured
for MDIO managed mode.
config NET_DSA_VITESSE_VSC73XX
diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index 9d5302001abf..9e04541c3144 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -22,6 +22,10 @@
*/
#define LAN9303_CHIP_REV 0x14
# define LAN9303_CHIP_ID 0x9303
+# define LAN9352_CHIP_ID 0x9352
+# define LAN9353_CHIP_ID 0x9353
+# define LAN9354_CHIP_ID 0x9354
+# define LAN9355_CHIP_ID 0x9355
#define LAN9303_IRQ_CFG 0x15
# define LAN9303_IRQ_CFG_IRQ_ENABLE BIT(8)
# define LAN9303_IRQ_CFG_IRQ_POL BIT(4)
@@ -855,8 +859,9 @@ static int lan9303_check_device(struct lan9303 *chip)
return ret;
}
- if ((reg >> 16) != LAN9303_CHIP_ID) {
- dev_err(chip->dev, "expecting LAN9303 chip, but found: %X\n",
+ if (((reg >> 16) != LAN9303_CHIP_ID) &&
+ ((reg >> 16) != LAN9354_CHIP_ID)) {
+ dev_err(chip->dev, "unexpected device found: LAN%4.4X\n",
reg >> 16);
return -ENODEV;
}
@@ -872,7 +877,7 @@ static int lan9303_check_device(struct lan9303 *chip)
if (ret)
dev_warn(chip->dev, "failed to disable switching %d\n", ret);
- dev_info(chip->dev, "Found LAN9303 rev. %u\n", reg & 0xffff);
+ dev_info(chip->dev, "Found LAN%4.4X rev. %u\n", (reg >> 16), reg & 0xffff);
ret = lan9303_detect_phy_setup(chip);
if (ret) {
diff --git a/drivers/net/dsa/lan9303_mdio.c b/drivers/net/dsa/lan9303_mdio.c
index bbb7032409ba..d12c55fdc811 100644
--- a/drivers/net/dsa/lan9303_mdio.c
+++ b/drivers/net/dsa/lan9303_mdio.c
@@ -158,6 +158,7 @@ static void lan9303_mdio_shutdown(struct mdio_device *mdiodev)
static const struct of_device_id lan9303_mdio_of_match[] = {
{ .compatible = "smsc,lan9303-mdio" },
+ { .compatible = "microchip,lan9354-mdio" },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, lan9303_mdio_of_match);
--
2.17.1
next prev parent reply other threads:[~2022-09-02 21:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 21:30 [PATCH v2 1/2] net: dsa: LAN9303: Add early read to sync Jerry Ray
2022-09-02 21:30 ` Jerry Ray [this message]
2022-09-07 11:20 ` patchwork-bot+netdevbpf
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