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net: phy: adin: add support for Analog Devices PHYs

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This change adds support for Analog Devices Industrial Ethernet PHYs.
Particularly the PHYs this driver adds support for:
 * ADIN1200 - Robust, Industrial, Low Power 10/100 Ethernet PHY
 * ADIN1300 - Robust, Industrial, Low Latency 10/100/1000 Gigabit
   Ethernet PHY

The 2 chips are register compatible with one another. The main difference
being that ADIN1200 doesn't operate in gigabit mode.

The chips can be operated by the Generic PHY driver as well via the
standard IEEE PHY registers (0x0000 - 0x000F) which are supported by the
kernel as well. This assumes that configuration of the PHY has been done
completely in HW, according to spec.

Configuration can also be done via registers, which will be supported by
this driver.

Datasheets:
  https://www.analog.com/media/en/technical-documentation/data-sheets/ADIN1300.pdf
  https://www.analog.com/media/en/technical-documentation/data-sheets/ADIN1200.pdf

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexandru Ardelean 2019-08-16 16:09:59 +03:00 committed by David S. Miller
parent 459c5fb443
commit 9c1029818c
4 changed files with 66 additions and 0 deletions
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7
MAINTAINERS
View file

@ -938,6 +938,13 @@ S: Supported
F: drivers/mux/adgs1408.c
F: Documentation/devicetree/bindings/mux/adi,adgs1408.txt
ANALOG DEVICES INC ADIN DRIVER
M: Alexandru Ardelean <alexaundru.ardelean@analog.com>
L: netdev@vger.kernel.org
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/net/phy/adin.c
ANALOG DEVICES INC ADIS DRIVER LIBRARY
M: Alexandru Ardelean <alexandru.ardelean@analog.com>
S: Supported

9
drivers/net/phy/Kconfig
View file

@ -257,6 +257,15 @@ config SFP
depends on HWMON || HWMON=n
select MDIO_I2C
config ADIN_PHY
tristate "Analog Devices Industrial Ethernet PHYs"
help
Adds support for the Analog Devices Industrial Ethernet PHYs.
Currently supports the:
- ADIN1200 - Robust,Industrial, Low Power 10/100 Ethernet PHY
- ADIN1300 - Robust,Industrial, Low Latency 10/100/1000 Gigabit
Ethernet PHY
config AMD_PHY
tristate "AMD PHYs"
---help---

1
drivers/net/phy/Makefile
View file

@ -47,6 +47,7 @@ obj-$(CONFIG_SFP) += sfp.o
sfp-obj-$(CONFIG_SFP) += sfp-bus.o
obj-y += $(sfp-obj-y) $(sfp-obj-m)
obj-$(CONFIG_ADIN_PHY) += adin.o
obj-$(CONFIG_AMD_PHY) += amd.o
aquantia-objs += aquantia_main.o
ifdef CONFIG_HWMON

49
drivers/net/phy/adin.c Normal file
View file

@ -0,0 +1,49 @@
// SPDX-License-Identifier: GPL-2.0+
/**
* Driver for Analog Devices Industrial Ethernet PHYs
*
* Copyright 2019 Analog Devices Inc.
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mii.h>
#include <linux/phy.h>
#define PHY_ID_ADIN1200 0x0283bc20
#define PHY_ID_ADIN1300 0x0283bc30
static int adin_config_init(struct phy_device *phydev)
{
return genphy_config_init(phydev);
}
static struct phy_driver adin_driver[] = {
{
PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200),
.name = "ADIN1200",
.config_init = adin_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300),
.name = "ADIN1300",
.config_init = adin_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
},
};
module_phy_driver(adin_driver);
static struct mdio_device_id __maybe_unused adin_tbl[] = {
{ PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200) },
{ PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300) },
{ }
};
MODULE_DEVICE_TABLE(mdio, adin_tbl);
MODULE_DESCRIPTION("Analog Devices Industrial Ethernet PHY driver");
MODULE_LICENSE("GPL");