Commit 23020f04 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jakub Kicinski
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net: airoha: Introduce ethernet support for EN7581 SoC 



Add airoha_eth driver in order to introduce ethernet support for
Airoha EN7581 SoC available on EN7581 development board (en7581-evb).
EN7581 mac controller is mainly composed by the Frame Engine (PSE+PPE)
and QoS-DMA (QDMA) modules. FE is used for traffic offloading (just
basic functionalities are currently supported) while QDMA is used for
DMA operations and QOS functionalities between the mac layer and the
external modules conncted to the FE GDM ports (e.g MT7530 DSA switch
or external phys).
A general overview of airoha_eth architecture is reported below:

               ┌───────┐                                     ┌───────┐
               │ QDMA2 │                                     │ QDMA1 │
               └───┬───┘                                     └───┬───┘
                   │                                             │
           ┌───────▼─────────────────────────────────────────────▼────────┐
           │                                                              │
           │       P5                                            P0       │
           │                                                              │
           │                                                              │
           │                                                              │    ┌──────┐
           │                                                           P3 ├────► GDM3 │
           │                                                              │    └──────┘
           │                                                              │
           │                                                              │
┌─────┐    │                                                              │
│ PPE ◄────┤ P4                          PSE                              │
└─────┘    │                                                              │
           │                                                              │
           │                                                              │
           │                                                              │    ┌──────┐
           │                                                           P9 ├────► GDM4 │
           │                                                              │    └──────┘
           │                                                              │
           │                                                              │
           │                                                              │
           │        P2                                           P1       │
           └─────────┬───────────────────────────────────────────┬────────┘
                     │                                           │
                 ┌───▼──┐                                     ┌──▼───┐
                 │ GDM2 │                                     │ GDM1 │
                 └──────┘                                     └──┬───┘
                                                                 │
                                                            ┌────▼─────┐
                                                            │  MT7530  │
                                                            └──────────┘

Currently only hw LAN features (QDMA1+GDM1) are available while hw WAN
(QDMA2+GDM{2,3,4}) ones will be added with subsequent patches introducing
traffic offloading support.

Tested-by: default avatarBenjamin Larsson <benjamin.larsson@genexis.eu>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/274945d2391c195098ab180a46d0617b18b9e42c.1720818878.git.lorenzo@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 6bc8719c

MAINTAINERS

+9 −0
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@@ -682,6 +682,15 @@ S: Supported 
F:	fs/aio.c

F:	include/linux/*aio*.h









AIROHA ETHERNET DRIVER









M:	Lorenzo Bianconi <lorenzo@kernel.org>









L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)









L:	linux-mediatek@lists.infradead.org (moderated for non-subscribers)









L:	netdev@vger.kernel.org









S:	Maintained









F:	Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml









F:	drivers/net/ethernet/mediatek/airoha_eth.c

















AIROHA SPI SNFI DRIVER









M:	Lorenzo Bianconi <lorenzo@kernel.org>









M:	Ray Liu <ray.liu@airoha.com>
































drivers/net/ethernet/mediatek/Kconfig



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−1






























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# SPDX-License-Identifier: GPL-2.0-only









config NET_VENDOR_MEDIATEK









	bool "MediaTek devices"









	depends on ARCH_MEDIATEK || SOC_MT7621 || SOC_MT7620 || COMPILE_TEST









	depends on ARCH_MEDIATEK || ARCH_AIROHA || SOC_MT7621 || SOC_MT7620 || COMPILE_TEST









	help









	  If you have a Mediatek SoC with ethernet, say Y.



















if NET_VENDOR_MEDIATEK



















config NET_AIROHA









	tristate "Airoha SoC Gigabit Ethernet support"









	depends on NET_DSA || !NET_DSA









	select PAGE_POOL









	help









	  This driver supports the gigabit ethernet MACs in the









	  Airoha SoC family.



















config NET_MEDIATEK_SOC_WED









	depends on ARCH_MEDIATEK || COMPILE_TEST









	def_bool NET_MEDIATEK_SOC != n
































drivers/net/ethernet/mediatek/Makefile



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@@ -11,3 +11,4 @@ mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_debugfs.o







endif









obj-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_ops.o









obj-$(CONFIG_NET_MEDIATEK_STAR_EMAC) += mtk_star_emac.o









obj-$(CONFIG_NET_AIROHA) += airoha_eth.o
























drivers/net/ethernet/mediatek/airoha_eth.c
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+2730
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