On 7/21/25 5:26 PM, fran...@public-files.de wrote:
Hi
Gesendet: Sonntag, 20. Juli 2025 um 14:28
Von: "Lucien.Jheng" <lucienzx...@gmail.com>
Betreff: [U-Boot, v3, 1/1]net: phy: Add the Airoha EN8811H PHY driver
Add the driver for the Airoha EN8811H 2.5 Gigabit PHY. The PHY supports
100/1000/2500 Mbps with auto negotiation only.
The driver uses two firmware files, for which updated versions are added to
linux-firmware already.
Locating the AIROHA FW within the filesystem at the designated partition
and path will trigger its automatic loading and writing to the PHY via MDIO.
If need board specific loading override,
please override the en8811h_read_fw function on board or architecture level.
Linux upstream AIROHA EN8811H driver commit:
71e79430117d56c409c5ea485a263bc0d8083390
Based on the Linux upstream AIROHA EN8811H driver code(air_en8811h.c),
I have modified the relevant process to align with the U-Boot boot sequence.
and have validated this on Banana Pi BPI-R3 Mini.
Signed-off-by: Lucien.Jheng <lucienzx...@gmail.com>
---
Change in PATCH v3:
air_en8811h.c:
* Add U-Boot environment variable(en8811h_fw_part, en8811h_fw_dm_dir,
en8811h_fw_dsp_dir)
support for firmware loading.
Thank you lucien for taking care of this driver...
Indeed, and thank you for the patience.
drivers/net/phy/Kconfig | 25 +
drivers/net/phy/Makefile | 1 +
drivers/net/phy/air_en8811h.c | 880 ++++++++++++++++++++++++++++++++++
3 files changed, 906 insertions(+)
create mode 100644 drivers/net/phy/air_en8811h.c
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 8d88c142900..9f12238e1ea 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -79,6 +79,31 @@ config PHY_ADIN
help
Add support for configuring RGMII on Analog Devices ADIN PHYs.
+menuconfig PHY_AIROHA
+ bool "Airoha Ethernet PHYs support"
+
+config PHY_AIROHA_EN8811H
+ bool "Airoha Ethernet EN8811H support"
+ depends on PHY_AIROHA
+ help
+ AIROHA EN8811H supported.
+
+choice
+ prompt "Location of the Airoha PHY firmware"
+ default PHY_AIROHA_FW_IN_MMC
+ depends on PHY_AIROHA_EN8811H
+
+config PHY_AIROHA_FW_IN_MMC
+ bool "Airoha firmware in MMC partition"
+ help
+ Airoha PHYs use firmware which can be loaded automatically
+ from storage directly attached to the PHY, and then loaded
+ via MDIO commands by the boot loader. The firmware is loaded
+ from a file specified by the U-Boot environment variables
+ en8811h_fw_part, en8811h_fw_dm_dir, and en8811h_fw_dsp_dir.
maybe something like PHY_AIROHA_FW_IN_SUBSYSTEM = (MMC/USB/NVME/...) as choice? or better
PHY_AIROHA_FW_BY_ENV and then check env-var with default "mmc" for maximum on
flexibility without recompile.
If we could use the generic loader interface, than these Kconfig symbols
go away altogether , right ?