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openwrt/target/linux/ramips/modules.mk
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Gleb Pesin d0f9d2143c ramips: mt7620: add DSA support for integrated switch 
Add a DSA driver for the seven-port switch integrated in MT7620. Keep
the existing swconfig path for device trees without a DSA ports node.

Use RXD4 source-port and TXD4 forced-port metadata with the Ralink
DSA tagger. The programming guide places TXD4 FP_BMAP at bits 27:20;
use that layout instead of the stale unused bits 26:19 definition.

Implement bridge isolation and STP, VLAN filtering, FDB and
MDB offload, ageing, flood controls, phylink, MTU limits, and
software-extended hardware MIB counters. Poll the 1000BASE-T CPU
port counters every 20 ms and the remaining ports every 200 ms to
leave scheduling margin before their 16-bit packet counters wrap at
minimum-sized line-rate traffic. DSA invokes port_stp_state_set()
before updating its cached state, so pass the pending callback state
as an override when recalculating port matrices instead of leaving
hardware one transition behind.

Correct the shared switch MIB enable register and enable all seven
port counters. The old address was inside port 0 counter space,
so this also fixes legacy swconfig initialization.

Register DSA through a bound child of the frame-engine device. This
gives the managed conduit device link the correct lifetime across
driver unbind and reprobe while the switch registers remain owned by
the existing GSW platform device.

Package the driver and tagger as kmod-dsa-mt7620 for per-device
opt-in. This keeps DSA and switchdev out of swconfig-only MT7620
images and prevents installing the DSA package together with swconfig.

Also make MDIO and frame-engine teardown safe for deferred probes and
runtime reprobes. Replace the legacy MDIO busy loop and -1 return
with readl_poll_timeout_atomic() and its real error, and reset a
still-busy frame engine before freeing DMA rings. Resolve FE and ESW
resets by name so recovery can reset FE alone, and warn if a switch
node provides neither named reset.

The netdev is devm-managed, so leave NAPI deletion to free_netdev
after unregister instead of deleting NAPI from fe_remove while the
netdev is still registered.

Tested on an MT7620N rev 2 eco 6 with 100BASE-T traffic, VLAN-aware
hardware bridging, 2026-byte MTU, FDB/MDB offload, pending STP state,
and driver unbind/rebind. The modular driver, tagger, package contents,
DSA image composition, and swconfig-only kernel configuration were
also verified.

An independent TP-Link Archer C5 v4 test exercised an external RTL8367S
DSA switch using the RTL8_4t tagger as a regression check on the
shared dsa_tag_protocol enum. It found no collision or external-switch
regression; it does not validate the MT7620 integrated-switch path.

Signed-off-by: Gleb Pesin <dormancygrace@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/24493
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
2026-08-20 23:35:34 +02:00

194 lines
5.1 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2006-2016 OpenWrt.org
OTHER_MENU:=Other modules
define KernelPackage/mmc-mtk
SUBMENU:=Other modules
TITLE:=MediaTek SD/MMC Card Interface support
DEPENDS:=@(TARGET_ramips_mt7620||TARGET_ramips_mt76x8||TARGET_ramips_mt7621) +kmod-mmc
KCONFIG:= \
CONFIG_MMC \
CONFIG_MMC_CQHCI \
CONFIG_MMC_HSQ \
CONFIG_MMC_MTK
FILES:= \
$(LINUX_DIR)/drivers/mmc/host/cqhci.ko \
$(LINUX_DIR)/drivers/mmc/host/mmc_hsq.ko \
$(LINUX_DIR)/drivers/mmc/host/mtk-sd.ko
AUTOLOAD:=$(call AutoProbe,cqhci mmc_hsq mtk-sd,1)
endef
define KernelPackage/mmc-mtk/description
MediaTek(R) Secure digital and Multimedia card Interface.
This is needed if support for any SD/SDIO/MMC devices is required.
endef
$(eval $(call KernelPackage,mmc-mtk))
define KernelPackage/pwm-mediatek
SUBMENU:=Other modules
TITLE:=MediaTek PWM support
DEPENDS:=@TARGET_ramips_mt76x8
KCONFIG:= \
CONFIG_PWM=y \
CONFIG_PWM_MEDIATEK
FILES:=$(LINUX_DIR)/drivers/pwm/pwm-mediatek.ko
AUTOLOAD:=$(call AutoProbe,pwm-mediatek)
endef
define KernelPackage/pwm-mediatek/description
Generic PWM framework driver for Mediatek SoC.
endef
$(eval $(call KernelPackage,pwm-mediatek))
define KernelPackage/sdhci-mt7620
SUBMENU:=Other modules
TITLE:=MT7620 SDCI
CONFLICTS:=kmod-mmc-mtk
DEPENDS:=@(TARGET_ramips_mt7620||TARGET_ramips_mt76x8||TARGET_ramips_mt7621) +kmod-mmc
KCONFIG:= \
CONFIG_MTK_MMC \
CONFIG_MTK_AEE_KDUMP=n \
CONFIG_MTK_MMC_CD_POLL=n
FILES:= \
$(LINUX_DIR)/drivers/mmc/host/mtk-mmc/mtk_sd.ko
AUTOLOAD:=$(call AutoProbe,mtk_sd,1)
endef
$(eval $(call KernelPackage,sdhci-mt7620))
I2C_RALINK_MODULES:= \
CONFIG_I2C_RALINK:drivers/i2c/busses/i2c-ralink
define KernelPackage/i2c-ralink
$(call i2c_defaults,$(I2C_RALINK_MODULES),59)
TITLE:=Ralink I2C Controller
DEPENDS:=+kmod-i2c-core @TARGET_ramips \
@!(TARGET_ramips_mt7621||TARGET_ramips_mt76x8)
endef
define KernelPackage/i2c-ralink/description
Kernel modules for enable ralink i2c controller.
endef
$(eval $(call KernelPackage,i2c-ralink))
I2C_MT7621_MODULES:= \
CONFIG_I2C_MT7621:drivers/i2c/busses/i2c-mt7621
define KernelPackage/i2c-mt7628
$(call i2c_defaults,$(I2C_MT7621_MODULES),59)
TITLE:=MT7621/MT7628/MT7688 I2C Controller
DEPENDS:=+kmod-i2c-core \
@(TARGET_ramips_mt7621||TARGET_ramips_mt76x8)
endef
define KernelPackage/i2c-mt7628/description
Driver support for I2C controller in the MediaTek
MT7621/MT7628/MT7688 SoCs.
endef
$(eval $(call KernelPackage,i2c-mt7628))
define KernelPackage/dma-ralink
SUBMENU:=Other modules
TITLE:=Ralink GDMA Engine
DEPENDS:=@TARGET_ramips @!TARGET_ramips_rt288x
KCONFIG:= \
CONFIG_DMADEVICES=y \
CONFIG_RALINK_GDMA
FILES:= \
$(LINUX_DIR)/drivers/dma/virt-dma.ko \
$(LINUX_DIR)/drivers/dma/ralink-gdma.ko
AUTOLOAD:=$(call AutoLoad,52,ralink-gdma)
endef
define KernelPackage/dma-ralink/description
Kernel modules for enable ralink gdma engine.
endef
$(eval $(call KernelPackage,dma-ralink))
define KernelPackage/dsa-mt7620
SUBMENU:=$(NETWORK_DEVICES_MENU)
TITLE:=MediaTek MT7620 integrated switch DSA support
DEPENDS:=@TARGET_ramips_mt7620 +kmod-dsa
CONFLICTS:=swconfig
KCONFIG:= \
CONFIG_NET_DSA_MT7620 \
CONFIG_NET_DSA_TAG_RALINK
FILES:= \
$(LINUX_DIR)/drivers/net/ethernet/ralink/gsw_mt7620_dsa.ko \
$(LINUX_DIR)/net/dsa/tag_ralink.ko
AUTOLOAD:=$(call AutoProbe,tag_ralink gsw_mt7620_dsa)
endef
define KernelPackage/dsa-mt7620/description
DSA support for the switch integrated in the MediaTek MT7620 SoC.
endef
$(eval $(call KernelPackage,dsa-mt7620))
define KernelPackage/hsdma-mtk
SUBMENU:=Other modules
TITLE:=MediaTek HSDMA Engine
DEPENDS:=@TARGET_ramips @TARGET_ramips_mt7621
KCONFIG:= \
CONFIG_DMADEVICES=y \
CONFIG_MTK_HSDMA
FILES:= \
$(LINUX_DIR)/drivers/dma/virt-dma.ko \
$(LINUX_DIR)/drivers/dma/mediatek/hsdma-mt7621.ko
AUTOLOAD:=$(call AutoLoad,53,hsdma-mt7621)
endef
define KernelPackage/hsdma-mtk/description
Kernel modules for enable MediaTek hsdma engine.
endef
$(eval $(call KernelPackage,hsdma-mtk))
define KernelPackage/sound-mt7620
TITLE:=MT7620 PCM/I2S Alsa Driver
DEPENDS:=@TARGET_ramips @!TARGET_ramips_rt288x +kmod-dma-ralink \
+kmod-sound-soc-core +kmod-sound-soc-wm8960
KCONFIG:= \
CONFIG_SND_RALINK_SOC_I2S \
CONFIG_SND_SIMPLE_CARD \
CONFIG_SND_SIMPLE_CARD_UTILS
FILES:= \
$(LINUX_DIR)/sound/soc/ralink/snd-soc-ralink-i2s.ko \
$(LINUX_DIR)/sound/soc/generic/snd-soc-simple-card.ko \
$(LINUX_DIR)/sound/soc/generic/snd-soc-simple-card-utils.ko
AUTOLOAD:=$(call AutoLoad,90,snd-soc-ralink-i2s snd-soc-simple-card)
$(call AddDepends/sound)
endef
define KernelPackage/sound-mt7620/description
Alsa modules for ralink i2s controller.
endef
$(eval $(call KernelPackage,sound-mt7620))
define KernelPackage/keyboard-sx951x
SUBMENU:=Other modules
TITLE:=Semtech SX9512/SX9513
DEPENDS:=@TARGET_ramips_mt7621 +kmod-input-core
KCONFIG:= \
CONFIG_KEYBOARD_SX951X \
CONFIG_INPUT_KEYBOARD=y
FILES:=$(LINUX_DIR)/drivers/input/keyboard/sx951x.ko
AUTOLOAD:=$(call AutoProbe,sx951x)
endef
define KernelPackage/keyboard-sx951x/description
Enable support for SX9512/SX9513 capacitive touch controllers
endef
$(eval $(call KernelPackage,keyboard-sx951x))
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