e93984ebc1
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>
7 lines
192 B
Makefile
7 lines
192 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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aquantia-objs += aquantia_main.o aquantia_firmware.o
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ifdef CONFIG_HWMON
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aquantia-objs += aquantia_hwmon.o
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endif
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obj-$(CONFIG_AQUANTIA_PHY) += aquantia.o
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