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Message-ID: <20250604065200.163778-1-john.madieu.xa@bp.renesas.com>
Date: Wed, 4 Jun 2025 08:51:56 +0200
From: John Madieu <john.madieu.xa@...renesas.com>
To: prabhakar.mahadev-lad.rj@...renesas.com,
andrew+netdev@...n.ch,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
geert+renesas@...der.be,
magnus.damm@...il.com
Cc: biju.das.jz@...renesas.com,
john.madieu@...il.com,
netdev@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
John Madieu <john.madieu.xa@...renesas.com>
Subject: [PATCH 0/4] Add support for GBETH IPs found on RZ/G3E SoCs
Hi all,
This series adds support for the two Gigabit Ethernet (GBETH) interfaces on the
Renesas RZ/G3E (R9A09G047) SoCs and their enablement on the SMARC-II EVK. This
is achieved by integrating the necessary clock/reset signals prior to defining
common DTS nodes, and enabling both GBETH ports at the board level.
Here are pach dependencies:
- Patch 1/4 is based on renesas-drivers tree, on top of renesas-clk-for-v6.17
branch
- Patches [2,3,4]/4 are based on renesas-devel tree, on top of
renesas-dts-for-v6.17 branch
Below are some test logs, involving pings, then unbind/bind, then pings again:
```
root@...rc-rzg3e:~# ping -I eth0 google.com
PING google.com (172.217.20.174) from 192.168.1.245 eth0: 56(84) bytes of data.
64 bytes from waw02s07-in-f14.1e100.net (172.217.20.174): icmp_seq=1 ttl=117 time=4.42 ms
64 bytes from waw02s07-in-f14.1e100.net (172.217.20.174): icmp_seq=2 ttl=117 time=3.87 ms
64 bytes from waw02s07-in-f14.1e100.net (172.217.20.174): icmp_seq=3 ttl=117 time=3.68 ms
64 bytes from waw02s07-in-f14.1e100.net (172.217.20.174): icmp_seq=4 ttl=117 time=3.83 ms
^C
--- google.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 3.680/3.949/4.415/0.278 ms
root@...rc-rzg3e:~#
root@...rc-rzg3e:~# ping -I eth1 google.com
PING google.com (142.250.75.238) from 192.168.1.242 eth1: 56(84) bytes of data.
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=1 ttl=251 time=4.72 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=2 ttl=251 time=4.34 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=3 ttl=251 time=5.66 ms
^C
--- google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.338/4.904/5.659/0.555 ms
root@...rc-rzg3e:~#
root@...rc-rzg3e:~#
root@...rc-rzg3e:~#
root@...rc-rzg3e:~# echo "15c40000.ethernet" > /sys/bus/platform/drivers/renesas-gbeth/bind
[ 413.422009] renesas-gbeth 15c40000.ethernet: IRQ sfty not found
[ 413.429570] renesas-gbeth 15c40000.ethernet: User ID: 0x0, Synopsys ID: 0x52
[ 413.436749] renesas-gbeth 15c40000.ethernet: DWMAC4/5
[ 413.441974] renesas-gbeth 15c40000.ethernet: DMA HW capability register supported
[ 413.449536] renesas-gbeth 15c40000.ethernet: RX Checksum Offload Engine supported
[ 413.457098] renesas-gbeth 15c40000.ethernet: Wake-Up On Lan supported
[ 413.463617] renesas-gbeth 15c40000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[ 413.471807] renesas-gbeth 15c40000.ethernet: Enabled L3L4 Flow TC (entries=8)
[ 413.478982] renesas-gbeth 15c40000.ethernet: Enabled RFS Flow TC (entries=10)
[ 413.486148] renesas-gbeth 15c40000.ethernet: Using 32/32 bits DMA host/device width
[ 413.523040] renesas-gbeth 15c40000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[ 413.534875] renesas-gbeth 15c40000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-1
[ 413.546218] renesas-gbeth 15c40000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-2
[ 413.556666] renesas-gbeth 15c40000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-3
[ 413.633799] renesas-gbeth 15c40000.ethernet eth0: PHY [stmmac-1:07] driver [Microchip KSZ9131 Gigabit PHY] (irq=27)
[ 413.659645] dwmac4: Master AXI performs fixed burst length
[ 413.666549] renesas-gbeth 15c40000.ethernet eth0: No Safety Features support found
[ 413.674263] renesas-gbeth 15c40000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[ 413.683733] renesas-gbeth 15c40000.ethernet eth0: registered PTP clock
[ 413.695546] renesas-gbeth 15c40000.ethernet eth0: configuring for phy/rgmii-id link mode
[ 416.576645] renesas-gbeth 15c40000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
root@...rc-rzg3e:~#
root@...rc-rzg3e:~# echo "15c30000.ethernet" > /sys/bus/platform/drivers/renesas-gbeth/bind
[ 430.269771] renesas-gbeth 15c30000.ethernet: IRQ sfty not found
[ 430.277347] renesas-gbeth 15c30000.ethernet: User ID: 0x1, Synopsys ID: 0x52
[ 430.284525] renesas-gbeth 15c30000.ethernet: DWMAC4/5
[ 430.289753] renesas-gbeth 15c30000.ethernet: DMA HW capability register supported
[ 430.297317] renesas-gbeth 15c30000.ethernet: RX Checksum Offload Engine supported
[ 430.304880] renesas-gbeth 15c30000.ethernet: Wake-Up On Lan supported
[ 430.311400] renesas-gbeth 15c30000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[ 430.319598] renesas-gbeth 15c30000.ethernet: Enabled L3L4 Flow TC (entries=8)
[ 430.326774] renesas-gbeth 15c30000.ethernet: Enabled RFS Flow TC (entries=10)
[ 430.333942] renesas-gbeth 15c30000.ethernet: Using 32/32 bits DMA host/device width
[ 430.360549] renesas-gbeth 15c30000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0
[ 432.366627] renesas-gbeth 15c30000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-1
[ 432.377218] renesas-gbeth 15c30000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-2
[ 432.386450] renesas-gbeth 15c30000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-3
[ 432.461470] renesas-gbeth 15c30000.ethernet eth1: PHY [stmmac-0:07] driver [Microchip KSZ9131 Gigabit PHY] (irq=23)
[ 432.487523] dwmac4: Master AXI performs fixed burst length
[ 432.494429] renesas-gbeth 15c30000.ethernet eth1: No Safety Features support found
[ 432.502149] renesas-gbeth 15c30000.ethernet eth1: IEEE 1588-2008 Advanced Timestamp supported
[ 432.511638] renesas-gbeth 15c30000.ethernet eth1: registered PTP clock
[ 432.523033] renesas-gbeth 15c30000.ethernet eth1: configuring for phy/rgmii-id link mode
[ 435.489601] renesas-gbeth 15c30000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off
root@...rc-rzg3e:~#
root@...rc-rzg3e:~#
root@...rc-rzg3e:~# ping -I eth0 google.com
PING google.com (142.250.75.238) from 192.168.1.242 eth0: 56(84) bytes of data.
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=1 ttl=251 time=4.62 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=2 ttl=251 time=4.19 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=3 ttl=251 time=4.49 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=4 ttl=251 time=4.76 ms
^C
--- google.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 4.189/4.514/4.758/0.210 ms
root@...rc-rzg3e:~# ping -I eth1 google.com
PING google.com (142.250.75.238) from 192.168.1.245 eth1: 56(84) bytes of data.
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=1 ttl=251 time=4.45 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=2 ttl=251 time=4.79 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=3 ttl=251 time=4.42 ms
64 bytes from par10s41-in-f14.1e100.net (142.250.75.238): icmp_seq=4 ttl=251 time=4.47 ms
^C
--- google.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 4.417/4.530/4.787/0.149 ms
root@...rc-rzg3e:~#
```
Regards,
John Madieu
John Madieu (4):
clk: renesas: r9a09g047: Add clock and reset signals for the GBETH IPs
dt-bindings: net: renesas-gbeth: Add support for RZ/G3E (R9A09G047)
SoC
arm64: dts: renesas: r9a09g047: Add GBETH nodes
arm64: dts: renesas: rzg3e-smarc-som: Enable eth{0-1} (GBETH)
interfaces
.../bindings/net/renesas,r9a09g057-gbeth.yaml | 2 +
arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 207 ++++++++++++++++++
.../boot/dts/renesas/rzg3e-smarc-som.dtsi | 106 +++++++++
drivers/clk/renesas/r9a09g047-cpg.c | 64 ++++++
4 files changed, 379 insertions(+)
--
2.25.1
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