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@xxxxxxxxxxxxxx> Reviewed-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx> Thanks! -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
