| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657 |
- From b5f71652b85a85ea53162e9e2b760b84fd0d254f Mon Sep 17 00:00:00 2001
- From: Robert Marko <[email protected]>
- Date: Mon, 1 Nov 2021 18:10:28 +0100
- Subject: [PATCH] net: dsa: add Qualcomm IPQ4019 built-in switch support
- Qualcomm IPQ40xx SoC-s have a variant of QCA8337N switch built-in.
- It shares most of the stuff with its external counterpart, however it is
- modified for the SoC.
- Namely, it doesn't have second CPU port (Port 6), so it has 6 ports
- instead of 7.
- It also has no built-in PHY-s but rather requires external PSGMII based
- companion PHY-s (QCA8072 and QCA8075) for which it first needs to carry
- out calibration before using them.
- PSGMII has a SoC built-in PHY that is used to connect to the PHY-s which
- unfortunately requires some magic values as the datasheet doesnt document
- the bits that are being set or the register at all.
- Since its built-in it is MMIO like other peripherals and doesn't have its
- own MDIO bus but depends on the SoC provided one.
- CPU connection is at Port 0 and it uses some kind of a internal connection
- and no traditional RGMII/SGMII.
- It also doesn't use in-band tagging like other qca8k switches so a shinfo
- based tagger is used.
- Signed-off-by: Robert Marko <[email protected]>
- ---
- drivers/net/dsa/qca/Kconfig | 9 +++++++++
- drivers/net/dsa/qca/Makefile | 1 +
- 2 files changed, 10 insertions(+)
- --- a/drivers/net/dsa/qca/Kconfig
- +++ b/drivers/net/dsa/qca/Kconfig
- @@ -23,3 +23,13 @@ config NET_DSA_QCA8K_LEDS_SUPPORT
- help
- This enabled support for LEDs present on the Qualcomm Atheros
- QCA8K Ethernet switch chips.
- +
- +config NET_DSA_QCA8K_IPQ4019
- + tristate "Qualcomm Atheros IPQ4019 built-in Ethernet switch support"
- + depends on HAS_IOMEM && NET_DSA
- + select NET_DSA_TAG_IPQ4019
- + select REGMAP
- + help
- + This enables support for the Qualcomm Atheros IPQ4019 SoC built-in
- + Ethernet switch.
- +
- --- a/drivers/net/dsa/qca/Makefile
- +++ b/drivers/net/dsa/qca/Makefile
- @@ -1,5 +1,6 @@
- # SPDX-License-Identifier: GPL-2.0-only
- obj-$(CONFIG_NET_DSA_AR9331) += ar9331.o
- +obj-$(CONFIG_NET_DSA_QCA8K_IPQ4019) += qca8k-ipq4019.o
- obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o
- qca8k-y += qca8k-common.o qca8k-8xxx.o
- ifdef CONFIG_NET_DSA_QCA8K_LEDS_SUPPORT
|
