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net: ti: icssg-prueth: Add ICSSG Ethernet driver for AM65x SR1.0 platforms

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Add the PRUeth driver for the ICSSG subsystem found in AM65x SR1.0 devices.
The main differences that set SR1.0 and SR2.0 apart are the missing TXPRU
core in SR1.0, two extra DMA channels for management purposes and different
firmware that needs to be configured accordingly.

Based on the work of Roger Quadros, Vignesh Raghavendra and
Grygorii Strashko in TI's 5.10 SDK [1].

[1]: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/?h=ti-linux-5.10.y

Co-developed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Diogo Ivo <diogo.ivo@siemens.com>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Diogo Ivo 2024-04-03 11:48:20 +01:00 committed by Paolo Abeni
parent ce95cb4c8d
commit e654b85a69
3 changed files with 1204 additions and 0 deletions
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15
drivers/net/ethernet/ti/Kconfig
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@ -198,6 +198,21 @@ config TI_ICSSG_PRUETH
to support the Ethernet operation. Currently, it supports Ethernet
with 1G and 100M link speed.
config TI_ICSSG_PRUETH_SR1
tristate "TI Gigabit PRU SR1.0 Ethernet driver"
select PHYLIB
select TI_ICSS_IEP
select TI_K3_CPPI_DESC_POOL
depends on PRU_REMOTEPROC
depends on ARCH_K3 && OF && TI_K3_UDMA_GLUE_LAYER
help
Support dual Gigabit Ethernet ports over the ICSSG PRU Subsystem.
This subsystem is available on the AM65 SR1.0 platform.
This driver requires firmware binaries which will run on the PRUs
to support the Ethernet operation. Currently, it supports Ethernet
with 1G, 100M and 10M link speed.
config TI_ICSS_IEP
tristate "TI PRU ICSS IEP driver"
depends on PTP_1588_CLOCK_OPTIONAL

8
drivers/net/ethernet/ti/Makefile
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@ -40,4 +40,12 @@ icssg-prueth-y := icssg/icssg_prueth.o \
icssg/icssg_mii_cfg.o \
icssg/icssg_stats.o \
icssg/icssg_ethtool.o
obj-$(CONFIG_TI_ICSSG_PRUETH_SR1) += icssg-prueth-sr1.o
icssg-prueth-sr1-y := icssg/icssg_prueth_sr1.o \
icssg/icssg_common.o \
icssg/icssg_classifier.o \
icssg/icssg_config.o \
icssg/icssg_mii_cfg.o \
icssg/icssg_stats.o \
icssg/icssg_ethtool.o
obj-$(CONFIG_TI_ICSS_IEP) += icssg/icss_iep.o

1181
drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c Normal file
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