drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c | 1 + 1 file changed, 1 insertion(+)
Add PM suspend/resume callbacks for RZ/G3E SMARC EVK.
The PM deep entry is executed by pressing the SLEEP button and exit from
entry is by pressing the power button.
Logs:
root@smarc-rzg3e:~# PM: suspend entry (deep)
Filesystems sync: 0.115 seconds
Freezing user space processes
Freezing user space processes completed (elapsed 0.002 seconds)
OOM killer disabled.
Freezing remaining freezable tasks
Freezing remaining freezable tasks completed (elapsed 0.001 seconds)
printk: Suspending console(s) (use no_console_suspend to debug)
NOTICE: BL2: v2.10.5(release):2.10.5/rz_soc_dev-162-g7148ba838
NOTICE: BL2: Built : 14:23:58, Jul 5 2025
NOTICE: BL2: SYS_LSI_MODE: 0x13e06
NOTICE: BL2: SYS_LSI_DEVID: 0x8679447
NOTICE: BL2: SYS_LSI_PRR: 0x0
NOTICE: BL2: Booting BL31
renesas-gbeth 15c30000.ethernet end0: Link is Down
Disabling non-boot CPUs ...
psci: CPU3 killed (polled 0 ms)
psci: CPU2 killed (polled 0 ms)
psci: CPU1 killed (polled 0 ms)
Enabling non-boot CPUs ...
Detected VIPT I-cache on CPU1
GICv3: CPU1: found redistributor 100 region 0:0x0000000014960000
CPU1: Booted secondary processor 0x0000000100 [0x412fd050]
CPU1 is up
Detected VIPT I-cache on CPU2
GICv3: CPU2: found redistributor 200 region 0:0x0000000014980000
CPU2: Booted secondary processor 0x0000000200 [0x412fd050]
CPU2 is up
Detected VIPT I-cache on CPU3
GICv3: CPU3: found redistributor 300 region 0:0x00000000149a0000
CPU3: Booted secondary processor 0x0000000300 [0x412fd050]
CPU3 is up
dwmac4: Master AXI performs fixed burst length
15c30000.ethernet end0: No Safety Features support found
15c30000.ethernet end0: IEEE 1588-2008 Advanced Timestamp supported
15c30000.ethernet end0: configuring for phy/rgmii-id link mode
dwmac4: Master AXI performs fixed burst length
15c40000.ethernet end1: No Safety Features support found
15c40000.ethernet end1: IEEE 1588-2008 Advanced Timestamp supported
15c40000.ethernet end1: configuring for phy/rgmii-id link mode
OOM killer enabled.
Restarting tasks: Starting
Restarting tasks: Done
random: crng reseeded on system resumption
PM: suspend exit
15c30000.ethernet end0: Link is Up - 1Gbps/Full - flow control rx/tx
root@smarc-rzg3e:~# ifconfig end0 192.168.10.7 up
root@smarc-rzg3e:~# ping 192.168.10.1
PING 192.168.10.1 (192.168.10.1) 56(84) bytes of data.
64 bytes from 192.168.10.1: icmp_seq=1 ttl=64 time=2.05 ms
64 bytes from 192.168.10.1: icmp_seq=2 ttl=64 time=0.928 ms
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
This patch is tested with out-of tree patch for save/restore
ethernet OEN registers in the pinctrl block.
---
drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
index 9a774046455b..df4ca897a60c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
@@ -136,6 +136,7 @@ static struct platform_driver renesas_gbeth_driver = {
.probe = renesas_gbeth_probe,
.driver = {
.name = "renesas-gbeth",
+ .pm = &stmmac_pltfr_pm_ops,
.of_match_table = renesas_gbeth_match,
},
};
--
2.43.0On Sat, Jul 5, 2025 at 6:03 PM Biju Das <biju.das.jz@bp.renesas.com> wrote:
>
> Add PM suspend/resume callbacks for RZ/G3E SMARC EVK.
>
> The PM deep entry is executed by pressing the SLEEP button and exit from
> entry is by pressing the power button.
>
> Logs:
> root@smarc-rzg3e:~# PM: suspend entry (deep)
> Filesystems sync: 0.115 seconds
> Freezing user space processes
> Freezing user space processes completed (elapsed 0.002 seconds)
> OOM killer disabled.
> Freezing remaining freezable tasks
> Freezing remaining freezable tasks completed (elapsed 0.001 seconds)
> printk: Suspending console(s) (use no_console_suspend to debug)
> NOTICE: BL2: v2.10.5(release):2.10.5/rz_soc_dev-162-g7148ba838
> NOTICE: BL2: Built : 14:23:58, Jul 5 2025
> NOTICE: BL2: SYS_LSI_MODE: 0x13e06
> NOTICE: BL2: SYS_LSI_DEVID: 0x8679447
> NOTICE: BL2: SYS_LSI_PRR: 0x0
> NOTICE: BL2: Booting BL31
> renesas-gbeth 15c30000.ethernet end0: Link is Down
> Disabling non-boot CPUs ...
> psci: CPU3 killed (polled 0 ms)
> psci: CPU2 killed (polled 0 ms)
> psci: CPU1 killed (polled 0 ms)
> Enabling non-boot CPUs ...
> Detected VIPT I-cache on CPU1
> GICv3: CPU1: found redistributor 100 region 0:0x0000000014960000
> CPU1: Booted secondary processor 0x0000000100 [0x412fd050]
> CPU1 is up
> Detected VIPT I-cache on CPU2
> GICv3: CPU2: found redistributor 200 region 0:0x0000000014980000
> CPU2: Booted secondary processor 0x0000000200 [0x412fd050]
> CPU2 is up
> Detected VIPT I-cache on CPU3
> GICv3: CPU3: found redistributor 300 region 0:0x00000000149a0000
> CPU3: Booted secondary processor 0x0000000300 [0x412fd050]
> CPU3 is up
> dwmac4: Master AXI performs fixed burst length
> 15c30000.ethernet end0: No Safety Features support found
> 15c30000.ethernet end0: IEEE 1588-2008 Advanced Timestamp supported
> 15c30000.ethernet end0: configuring for phy/rgmii-id link mode
> dwmac4: Master AXI performs fixed burst length
> 15c40000.ethernet end1: No Safety Features support found
> 15c40000.ethernet end1: IEEE 1588-2008 Advanced Timestamp supported
> 15c40000.ethernet end1: configuring for phy/rgmii-id link mode
> OOM killer enabled.
> Restarting tasks: Starting
> Restarting tasks: Done
> random: crng reseeded on system resumption
> PM: suspend exit
>
> 15c30000.ethernet end0: Link is Up - 1Gbps/Full - flow control rx/tx
> root@smarc-rzg3e:~# ifconfig end0 192.168.10.7 up
> root@smarc-rzg3e:~# ping 192.168.10.1
> PING 192.168.10.1 (192.168.10.1) 56(84) bytes of data.
> 64 bytes from 192.168.10.1: icmp_seq=1 ttl=64 time=2.05 ms
> 64 bytes from 192.168.10.1: icmp_seq=2 ttl=64 time=0.928 ms
>
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> ---
> This patch is tested with out-of tree patch for save/restore
> ethernet OEN registers in the pinctrl block.
> ---
> drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c | 1 +
> 1 file changed, 1 insertion(+)
>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Cheers,
Prabhakar
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
> index 9a774046455b..df4ca897a60c 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
> @@ -136,6 +136,7 @@ static struct platform_driver renesas_gbeth_driver = {
> .probe = renesas_gbeth_probe,
> .driver = {
> .name = "renesas-gbeth",
> + .pm = &stmmac_pltfr_pm_ops,
> .of_match_table = renesas_gbeth_match,
> },
> };
> --
> 2.43.0
>
>
On Sat, Jul 05, 2025 at 06:03:24PM +0100, Biju Das wrote: > Add PM suspend/resume callbacks for RZ/G3E SMARC EVK. > > The PM deep entry is executed by pressing the SLEEP button and exit from > entry is by pressing the power button. > > Logs: > root@smarc-rzg3e:~# PM: suspend entry (deep) > Filesystems sync: 0.115 seconds > Freezing user space processes > Freezing user space processes completed (elapsed 0.002 seconds) > OOM killer disabled. > Freezing remaining freezable tasks > Freezing remaining freezable tasks completed (elapsed 0.001 seconds) > printk: Suspending console(s) (use no_console_suspend to debug) > NOTICE: BL2: v2.10.5(release):2.10.5/rz_soc_dev-162-g7148ba838 > NOTICE: BL2: Built : 14:23:58, Jul 5 2025 > NOTICE: BL2: SYS_LSI_MODE: 0x13e06 > NOTICE: BL2: SYS_LSI_DEVID: 0x8679447 > NOTICE: BL2: SYS_LSI_PRR: 0x0 > NOTICE: BL2: Booting BL31 > renesas-gbeth 15c30000.ethernet end0: Link is Down > Disabling non-boot CPUs ... > psci: CPU3 killed (polled 0 ms) > psci: CPU2 killed (polled 0 ms) > psci: CPU1 killed (polled 0 ms) > Enabling non-boot CPUs ... > Detected VIPT I-cache on CPU1 > GICv3: CPU1: found redistributor 100 region 0:0x0000000014960000 > CPU1: Booted secondary processor 0x0000000100 [0x412fd050] > CPU1 is up > Detected VIPT I-cache on CPU2 > GICv3: CPU2: found redistributor 200 region 0:0x0000000014980000 > CPU2: Booted secondary processor 0x0000000200 [0x412fd050] > CPU2 is up > Detected VIPT I-cache on CPU3 > GICv3: CPU3: found redistributor 300 region 0:0x00000000149a0000 > CPU3: Booted secondary processor 0x0000000300 [0x412fd050] > CPU3 is up > dwmac4: Master AXI performs fixed burst length > 15c30000.ethernet end0: No Safety Features support found > 15c30000.ethernet end0: IEEE 1588-2008 Advanced Timestamp supported > 15c30000.ethernet end0: configuring for phy/rgmii-id link mode > dwmac4: Master AXI performs fixed burst length > 15c40000.ethernet end1: No Safety Features support found > 15c40000.ethernet end1: IEEE 1588-2008 Advanced Timestamp supported > 15c40000.ethernet end1: configuring for phy/rgmii-id link mode > OOM killer enabled. > Restarting tasks: Starting > Restarting tasks: Done > random: crng reseeded on system resumption > PM: suspend exit > > 15c30000.ethernet end0: Link is Up - 1Gbps/Full - flow control rx/tx > root@smarc-rzg3e:~# ifconfig end0 192.168.10.7 up > root@smarc-rzg3e:~# ping 192.168.10.1 > PING 192.168.10.1 (192.168.10.1) 56(84) bytes of data. > 64 bytes from 192.168.10.1: icmp_seq=1 ttl=64 time=2.05 ms > 64 bytes from 192.168.10.1: icmp_seq=2 ttl=64 time=0.928 ms You should also test with the interface configured before suspend/resume and confirm that it continues working afterwards without being reconfigured. > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Thanks! -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
© 2016 - 2025 Red Hat, Inc.