diff options
| author | Robert Marko <robimarko@gmail.com> | 2023-11-14 15:08:43 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-11-16 22:10:29 +0000 |
| commit | e93984ebc1c82bd34f7a1b3391efaceee0a8ae96 (patch) | |
| tree | ad8ffb518a926ae259a1111231352161571adc9a /drivers/net/phy/aquantia/aquantia_main.c | |
| parent | e1fbfa4a995d42e02e22b0dff2f8b4fdee1504b3 (diff) | |
net: phy: aquantia: add firmware load support
Aquantia PHY-s require firmware to be loaded before they start operating.
It can be automatically loaded in case when there is a SPI-NOR connected
to Aquantia PHY-s or can be loaded from the host via MDIO.
This patch adds support for loading the firmware via MDIO as in most cases
there is no SPI-NOR being used to save on cost.
Firmware loading code itself is ported from mainline U-boot with cleanups.
The firmware has mixed values both in big and little endian.
PHY core itself is big-endian but it expects values to be in little-endian.
The firmware is little-endian but CRC-16 value for it is stored at the end
of firmware in big-endian.
It seems the PHY does the conversion internally from firmware that is
little-endian to the PHY that is big-endian on using the mailbox
but mailbox returns a big-endian CRC-16 to verify the written data
integrity.
Co-developed-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/aquantia/aquantia_main.c')
| -rw-r--r-- | drivers/net/phy/aquantia/aquantia_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/phy/aquantia/aquantia_main.c b/drivers/net/phy/aquantia/aquantia_main.c index 4498426e9a52..cc4a97741c4a 100644 --- a/drivers/net/phy/aquantia/aquantia_main.c +++ b/drivers/net/phy/aquantia/aquantia_main.c @@ -658,11 +658,17 @@ static int aqr107_resume(struct phy_device *phydev) static int aqr107_probe(struct phy_device *phydev) { + int ret; + phydev->priv = devm_kzalloc(&phydev->mdio.dev, sizeof(struct aqr107_priv), GFP_KERNEL); if (!phydev->priv) return -ENOMEM; + ret = aqr_firmware_load(phydev); + if (ret) + return ret; + return aqr_hwmon_probe(phydev); } |