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您好！
我将 HS EMV 与 AM437X CPU 搭配使用、且 SDK 为 ：AM437X-HS-EVM-Linux-SDK-BIN-06.03.00.106
要测试 RAM 的挂起、但尽管事实上我设置了控制台、但事实并非如此。 控制台只是冻结、唯一的选项是重新启动板。
日志如下所示：
```μ A
root@AM437X-hs-EVM：~# echo mem >/sys/power/state
[140.705722] PM：暂停进入(s2idle)
[140.709523] PM：正在同步文件系统... 完成。
[140.730689]冻结用户空间进程... (已用0.001秒)。
[140.739728]杀手房间已禁用。
[140.743125]冻结剩余可自由执行的任务... (已用0.001秒)。
```μ A
是否有提示？ 谢谢。
尊敬的 Marek：
我对这个问题的理解是、您可以使用命令'echo mem >/sys/power/state、但您无法通过按连接到 EVM UART 控制台的键盘来唤醒系统。 是这样吗？
如果是、您能否在以下任何暂停情况下唤醒？
# echo standby >/sys/power/state
# rtcwake -m standby -s 2.
# rtcwake -m mem -s 2.
请在非 HS 器件 EVM 上附加完整的内核启动日志。
您好、Bin、
我认为问题是内核甚至不会被暂停、例如显示此主题中的日志： https://e2e.ti.com/support/processors-group/processors/f/processors-forum/517107/am437x-starter-kit-evm-does-not-resume-from-suspend/1879459#1879459
从我的实验中、我能够对其进行调试、直到在 asm 中写入_cpu_suspend、我不确定如何进一步调试它。 请注意、我使用的是官方 SDK 预编译映像。 您能否验证此功能并告诉我它是否适合您？ 谢谢。
尊敬的 Marek：
暂停/恢复在我的非 HS GP EVM 上工作正常。 请检查以下日志。
root@am437x-evm:~# uname -a Linux am437x-evm 4.19.94-gbe5389fd85 #1 PREEMPT Sun Apr 19 03:20:57 UTC 2020 armv7l GNU/Linux root@am437x-evm:~# root@am437x-evm:~# echo mem > /sys/power/state [ 157.787780] PM: suspend entry (deep) [ 157.791408] PM: Syncing filesystems ... done. [ 157.802682] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 157.812176] OOM killer disabled. [ 157.815425] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 157.824537] Suspending console(s) (use no_console_suspend to debug) [ 157.885681] cpsw 4a100000.ethernet eth0: Link is Down [ 157.900269] pm33xx pm33xx: PM: Successfully put all powerdomains to target state [ 157.900269] PM: Wakeup source UART [ 157.923955] net eth0: initializing cpsw version 1.15 (0) [ 158.021356] Micrel KSZ9031 Gigabit PHY 4a101000.mdio:00: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_ addr=4a101000.mdio:00, irq=POLL) [ 158.065389] usb usb1: root hub lost power or was reset [ 158.065414] usb usb2: root hub lost power or was reset [ 158.236893] OOM killer enabled. [ 158.240056] Restarting tasks ... done. [ 158.247908] PM: suspend exit root@am437x-evm:~#
尊敬的 Marek：
我使用安全 SDK 6.3在 AM437x HS EVM 上运行了快速测试。
我要附上下面的日志。
它似乎按预期暂停/恢复工作。
我使用 UART (串行终端)作为唤醒源、如中的"暂停/恢复"部分所述
software-dl.ti.com/.../Power_Management.html
最棒的
－香港
您好、Hong、
重新创建问题的步骤：
uname -a Linux am437x-hs-evm 4.19.94-gbe5389fd85 #1 PREEMPT Mon Apr 20 02:19:56 UTC 2020 armv7l GNU/Linux
启用无控制台挂起：
echo N > /sys/module/printk/parameters/console_suspend root@am437x-hs-evm:~# cat /sys/module/printk/parameters/console_suspend N
将 ttS0配置为唤醒源：
root@am437x-hs-evm:~# cat /sys/devices/platform/44000000.ocp/44e09000.serial/tty/ttyS0/power/wakeup disabled root@am437x-hs-evm:~# echo enabled > /sys/devices/platform/44000000.ocp/44e09000.serial/tty/ttyS0/power/wakeup root@am437x-hs-evm:~# cat /sys/devices/platform/44000000.ocp/44e09000.serial/tty/ttyS0/power/wakeup enabled
启动日志：
root@am437x-hs-evm:~# dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.19.94-gbe5389fd85 (oe-user@oe-host) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architec
ture 8.3-2019.03 (arm-rel-8.36))) #1 PREEMPT Sun Apr 19 02:55:00 UTC 2020
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: TI AM437x GP EVM
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 48 MiB at 0xfcc00000
[ 0.000000] On node 0 totalpages: 516095
[ 0.000000] Normal zone: 1728 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:63
[ 0.000000] HighMem zone: 319487 pages, LIFO batch:63
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM437x ES1.2 (neon)
[ 0.000000] random: get_random_bytes called from start_kernel+0xa4/0x434 with crng_init=0
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 514367
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=PARTUUID=525a0f4c-02 rw rootfstype=ext4 rootwait
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1982120K/2064380K available (9216K kernel code, 316K rwdata, 2736K rodata, 1024K init, 254K bss, 33108K
reserved, 49152K cma-reserved, 1228796K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0x(ptrval) - 0x(ptrval) (10208 kB)
.init : 0x(ptrval) - 0x(ptrval) (1024 kB)
.data : 0x(ptrval) - 0x(ptrval) ( 317 kB)
.bss : 0x(ptrval) - 0x(ptrval) ( 255 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e030000 -> 0x3e430000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e030000 -> 0x3e430000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c9, AUX_CTRL 0x4e430000
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000013] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000033] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000044] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000521] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000534] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000974] Console: colour dummy device 80x30
[ 0.001004] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.001011] This ensures that you still see kernel messages. Please
[ 0.001016] update your kernel commandline.
[ 0.001063] Calibrating delay loop... 1594.16 BogoMIPS (lpj=7970816)
[ 0.090225] pid_max: default: 32768 minimum: 301
[ 0.090438] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.090463] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.091297] CPU: Testing write buffer coherency: ok
[ 0.091355] CPU0: Spectre v2: using BPIALL workaround
[ 0.092301] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.092467] rcu: Hierarchical SRCU implementation.
[ 0.092850] EFI services will not be available.
[ 0.093899] devtmpfs: initialized
[ 0.104519] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.104949] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.104974] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.108435] pinctrl core: initialized pinctrl subsystem
[ 0.109207] DMI not present or invalid.
[ 0.109664] NET: Registered protocol family 16
[ 0.111610] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.190178] cpuidle: using governor ladder
[ 0.190265] cpuidle: using governor menu
[ 0.198369] gpio gpiochip0: (gpio-0-31): added GPIO chardev (254:0)
[ 0.198475] gpiochip_setup_dev: registered GPIOs 0 to 31 on device: gpiochip0 (gpio-0-31)
[ 0.198518] OMAP GPIO hardware version 0.1
[ 0.199403] gpio gpiochip1: (gpio-32-63): added GPIO chardev (254:1)
[ 0.199495] gpiochip_setup_dev: registered GPIOs 32 to 63 on device: gpiochip1 (gpio-32-63)
[ 0.200389] gpio gpiochip2: (gpio-64-95): added GPIO chardev (254:2)
[ 0.200473] gpiochip_setup_dev: registered GPIOs 64 to 95 on device: gpiochip2 (gpio-64-95)
[ 0.209105] No ATAGs?
[ 0.209126] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.209147] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.224978] edma 49000000.edma: TI EDMA DMA engine driver
[ 0.225698] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-v3_3d[0]'
[ 0.226124] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator-mmcwl[0]' - status (0)
[ 0.229383] SCSI subsystem initialized
[ 0.229952] media: Linux media interface: v0.10
[ 0.229998] videodev: Linux video capture interface: v2.00
[ 0.230119] pps_core: LinuxPPS API ver. 1 registered
[ 0.230128] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.230152] PTP clock support registered
[ 0.230355] EDAC MC: Ver: 3.0.0
[ 0.231430] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.232148] Advanced Linux Sound Architecture Driver Initialized.
[ 0.233347] clocksource: Switched to clocksource timer1
[ 0.242232] NET: Registered protocol family 2
[ 0.243095] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[ 0.243136] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.243210] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.243301] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.243583] UDP hash table entries: 512 (order: 1, 8192 bytes)
[ 0.243613] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)
[ 0.243785] NET: Registered protocol family 1
[ 0.244378] RPC: Registered named UNIX socket transport module.
[ 0.244394] RPC: Registered udp transport module.
[ 0.244401] RPC: Registered tcp transport module.
[ 0.244407] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.244421] PCI: CLS 0 bytes, default 64
[ 0.246469] Initialise system trusted keyrings
[ 0.246774] workingset: timestamp_bits=14 max_order=19 bucket_order=5
[ 0.251548] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.252320] NFS: Registering the id_resolver key type
[ 0.252357] Key type id_resolver registered
[ 0.252365] Key type id_legacy registered
[ 0.252410] ntfs: driver 2.1.32 [Flags: R/O].
[ 0.255034] Key type asymmetric registered
[ 0.255052] Asymmetric key parser 'x509' registered
[ 0.255120] bounce: pool size: 64 pages
[ 0.255188] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[ 0.255202] io scheduler noop registered
[ 0.255210] io scheduler deadline registered
[ 0.255468] io scheduler cfq registered (default)
[ 0.255481] io scheduler mq-deadline registered
[ 0.255489] io scheduler kyber registered
[ 0.258626] pinctrl-single 44e10800.pinmux: 199 pins, size 796
[ 0.262558] pwm-backlight backlight: GPIO lookup for consumer enable
[ 0.262569] pwm-backlight backlight: using device tree for GPIO lookup
[ 0.262593] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/backlight[0]'
[ 0.262607] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/backlight[0]'
[ 0.262616] pwm-backlight backlight: using lookup tables for GPIO lookup
[ 0.262624] pwm-backlight backlight: No GPIO consumer enable found
[ 0.262647] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 0.262753] pwm-backlight backlight: Linked as a consumer to regulator.0
[ 0.313859] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[ 0.317408] omap8250 44e09000.serial: No clock speed specified: using default: 48000000
[ 0.318172] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 31, base_baud = 3000000) is a 8250
[ 1.006537] console [ttyS0] enabled
[ 1.010717] omap8250 481a6000.serial: No clock speed specified: using default: 48000000
[ 1.019554] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 32, base_baud = 3000000) is a 8250
[ 1.031403] omapdss_dss 4832a000.dss: 4832a000.dss supply vdda_video not found, using dummy regulator
[ 1.040859] omapdss_dss 4832a000.dss: Linked as a consumer to regulator.0
[ 1.047843] omapdss_dss 4832a000.dss: Dropping the link to regulator.0
[ 1.058047] panel-simple display: display supply power not found, using dummy regulator
[ 1.066272] panel-simple display: Linked as a consumer to regulator.0
[ 1.072751] panel-simple display: GPIO lookup for consumer enable
[ 1.072757] panel-simple display: using device tree for GPIO lookup
[ 1.072783] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/display[0]'
[ 1.072797] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/display[0]'
[ 1.072807] panel-simple display: using lookup tables for GPIO lookup
[ 1.072815] panel-simple display: No GPIO consumer enable found
[ 1.084838] brd: module loaded
[ 1.097366] loop: module loaded
[ 1.104160] mdio_bus fixed-0: GPIO lookup for consumer reset
[ 1.104171] mdio_bus fixed-0: using lookup tables for GPIO lookup
[ 1.104178] mdio_bus fixed-0: No GPIO consumer reset found
[ 1.104202] libphy: Fixed MDIO Bus: probed
[ 1.124683] mdio_bus 4a101000.mdio: GPIO lookup for consumer reset
[ 1.124694] mdio_bus 4a101000.mdio: using device tree for GPIO lookup
[ 1.124719] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp@44000000/ethernet@4a100000/mdio@4a101
000[0]'
[ 1.124734] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp@44000000/ethernet@4a100000/mdio@4a1010
00[0]'
[ 1.124743] mdio_bus 4a101000.mdio: using lookup tables for GPIO lookup
[ 1.124750] mdio_bus 4a101000.mdio: No GPIO consumer reset found
[ 1.183416] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
[ 1.191120] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[ 1.198600] libphy: 4a101000.mdio: probed
[ 1.202650] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver Micrel KSZ9031 Gigabit PHY
[ 1.213518] cpsw 4a100000.ethernet: Detected MACID = 98:84:e3:a6:c5:b0
[ 1.220196] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
[ 1.226682] cpsw 4a100000.ethernet: ALE Table size 1024
[ 1.231971] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies)
[ 1.240719] i2c /dev entries driver
[ 1.246623] cpuidle: enable-method property 'ti,am4372' found operations
[ 1.253996] sdhci: Secure Digital Host Controller Interface driver
[ 1.260208] sdhci: Copyright(c) Pierre Ossman
[ 1.265333] omap_hsmmc 48060000.mmc: GPIO lookup for consumer cd
[ 1.265342] omap_hsmmc 48060000.mmc: using device tree for GPIO lookup
[ 1.265375] omap_hsmmc 48060000.mmc: No GPIO consumer cd found
[ 1.265639] omap_hsmmc 47810000.mmc: GPIO lookup for consumer cd
[ 1.265646] omap_hsmmc 47810000.mmc: using device tree for GPIO lookup
[ 1.265669] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/ocp@44000000/mmc@47810000[0]'
[ 1.265683] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/ocp@44000000/mmc@47810000[0]'
[ 1.265691] omap_hsmmc 47810000.mmc: using lookup tables for GPIO lookup
[ 1.265698] omap_hsmmc 47810000.mmc: No GPIO consumer cd found
[ 1.265707] omap_hsmmc 47810000.mmc: GPIO lookup for consumer wp
[ 1.265713] omap_hsmmc 47810000.mmc: using device tree for GPIO lookup
[ 1.265726] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp@44000000/mmc@47810000[0]'
[ 1.265738] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp@44000000/mmc@47810000[0]'
[ 1.265745] omap_hsmmc 47810000.mmc: using lookup tables for GPIO lookup
[ 1.265751] omap_hsmmc 47810000.mmc: No GPIO consumer wp found
[ 1.266210] omap_hsmmc 47810000.mmc: Linked as a consumer to regulator.2
[ 1.296459] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.303217] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.315220] NET: Registered protocol family 10
[ 1.321194] Segment Routing with IPv6
[ 1.325120] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 1.331945] NET: Registered protocol family 17
[ 1.336871] Key type dns_resolver registered
[ 1.341417] omap_voltage_late_init: Voltage driver support not added
[ 1.348854] Loading compiled-in X.509 certificates
[ 1.365923] gpio gpiochip3: Persistence not supported for GPIO 23
[ 1.365941] GPIO line 119 (SelEMMCorNAND) hogged as output/low
[ 1.372116] gpio gpiochip3: (gpio-96-127): added GPIO chardev (254:3)
[ 1.372210] gpiochip_setup_dev: registered GPIOs 96 to 127 on device: gpiochip3 (gpio-96-127)
[ 1.372689] gpio gpiochip4: Persistence not supported for GPIO 8
[ 1.372700] GPIO line 136 (SelLCDorHDMI) hogged as output/high
[ 1.378904] gpio gpiochip4: (gpio-128-159): added GPIO chardev (254:4)
[ 1.378993] gpiochip_setup_dev: registered GPIOs 128 to 159 on device: gpiochip4 (gpio-128-159)
[ 1.379370] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 1.384628] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 1.390779] gpiochip_find_base: found new base at 510
[ 1.391015] gpio gpiochip5: (omap-gpmc): added GPIO chardev (254:5)
[ 1.391104] gpiochip_setup_dev: registered GPIOs 510 to 511 on device: gpiochip5 (omap-gpmc)
[ 1.392068] omap2-nand 8000000.nand: GPIO lookup for consumer rb
[ 1.392077] omap2-nand 8000000.nand: using device tree for GPIO lookup
[ 1.392119] of_get_named_gpiod_flags: parsed 'rb-gpios' property of node '/ocp@44000000/gpmc@50000000/nand@0,0[0]' - status
(0)
[ 1.392298] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xdc
[ 1.398747] nand: Micron MT29F4G08ABAEAWP
[ 1.402780] nand: 512 MiB, SLC, erase size: 256 KiB, page size: 4096, OOB size: 224
[ 1.410562] Using OMAP_ECC_BCH16_CODE_HW ECC scheme
[ 1.415593] 10 fixed-partitions partitions found on MTD device omap2-nand.0
[ 1.422587] Creating 10 MTD partitions on "omap2-nand.0":
[ 1.428034] 0x000000000000-0x000000040000 : "NAND.SPL"
[ 1.434281] 0x000000040000-0x000000080000 : "NAND.SPL.backup1"
[ 1.441076] 0x000000080000-0x0000000c0000 : "NAND.SPL.backup2"
[ 1.447879] 0x0000000c0000-0x000000100000 : "NAND.SPL.backup3"
[ 1.454655] 0x000000100000-0x000000180000 : "NAND.u-boot-spl-os"
[ 1.461590] 0x000000180000-0x000000280000 : "NAND.u-boot"
[ 1.468045] 0x000000280000-0x0000002c0000 : "NAND.u-boot-env"
[ 1.474723] 0x0000002c0000-0x000000300000 : "NAND.u-boot-env.backup1"
[ 1.482066] 0x000000300000-0x000000a00000 : "NAND.kernel"
[ 1.489305] 0x000000a00000-0x000020000000 : "NAND.file-system"
[ 1.560274] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator-vtt[0]' - status (0)
[ 1.599919] omap_i2c 44e0b000.i2c: bus 0 rev0.12 at 100 kHz
[ 1.607468] omap_i2c 4802a000.i2c: bus 1 rev0.12 at 100 kHz
[ 1.613776] omapdss_dss 4832a000.dss: 4832a000.dss supply vdda_video not found, using dummy regulator
[ 1.623127] omapdss_dss 4832a000.dss: Linked as a consumer to regulator.0
[ 1.630082] DSS: OMAP DSS rev 2.0
[ 1.634600] omapdss_dss 4832a000.dss: bound 4832a400.dispc (ops dispc_component_ops)
[ 1.642914] omapdrm omapdrm.0: DMM not available, disable DMM support
[ 1.649748] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.656431] [drm] No driver support for vblank timestamp query.
[ 1.673065] Console: switching to colour frame buffer device 100x30
[ 1.684491] omapdrm omapdrm.0: fb0: omapdrm frame buffer device
[ 1.691250] [drm] Initialized omapdrm 1.0.0 20110917 for omapdrm.0 on minor 0
[ 1.699002] cpu cpu0: Linked as a consumer to regulator.5
[ 1.704570] cpu cpu0: Dropping the link to regulator.5
[ 1.709898] cpu cpu0: Linked as a consumer to regulator.5
[ 1.716735] omap_hsmmc 48060000.mmc: GPIO lookup for consumer cd
[ 1.716746] omap_hsmmc 48060000.mmc: using device tree for GPIO lookup
[ 1.716790] of_get_named_gpiod_flags: parsed 'cd-gpios' property of node '/ocp@44000000/mmc@48060000[0]' - status (0)
[ 1.716813] gpio gpiochip3: Persistence not supported for GPIO 6
[ 1.716827] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 1.725695] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 1.730342] omap_hsmmc 48060000.mmc: GPIO lookup for consumer wp
[ 1.730348] omap_hsmmc 48060000.mmc: using device tree for GPIO lookup
[ 1.730367] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp@44000000/mmc@48060000[0]'
[ 1.730382] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp@44000000/mmc@48060000[0]'
[ 1.730391] omap_hsmmc 48060000.mmc: using lookup tables for GPIO lookup
[ 1.730399] omap_hsmmc 48060000.mmc: No GPIO consumer wp found
[ 1.730824] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.1
[ 1.765216] hctosys: unable to open rtc device (rtc0)
[ 1.771817] ALSA device list:
[ 1.774979] No soundcards found.
[ 1.780093] Waiting for root device PARTUUID=525a0f4c-02...
[ 1.843661] mmc1: host does not support reading read-only switch, assuming write-enable
[ 1.856554] mmc1: new high speed SDHC card at address aaaa
[ 1.863477] mmcblk1: mmc1:aaaa SB32G 29.7 GiB
[ 1.872851] mmcblk1: p1 p2
[ 1.909593] random: fast init done
[ 1.993262] EXT4-fs (mmcblk1p2): recovery complete
[ 1.999361] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)
[ 2.007877] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 2.024649] devtmpfs: mounted
[ 2.029544] Freeing unused kernel memory: 1024K
[ 2.034378] Run /sbin/init as init process
[ 2.349193] systemd[1]: System time before build time, advancing clock.
[ 2.389019] systemd[1]: systemd 239 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIB
CRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid)
[ 2.411315] systemd[1]: Detected architecture arm.
[ 2.467516] systemd[1]: Set hostname to <am437x-hs-evm>.
[ 2.781774] systemd[1]: File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any),
but the local system does not support BPF/cgroup based firewalling.
[ 2.799127] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit usin
g IP firewalling.)
[ 3.208282] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.215795] systemd[1]: Listening on Network Service Netlink Socket.
[ 3.253715] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.261013] systemd[1]: Listening on udev Kernel Socket.
[ 3.293965] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.301543] systemd[1]: Listening on initctl Compatibility Named Pipe.
[ 3.352284] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 3.384211] systemd[1]: Reached target Remote File Systems.
[ 3.732015] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
[ 4.574171] systemd-journald[83]: Received request to flush runtime journal from PID 1
[ 6.996110] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 7.009474] remoteproc remoteproc0: wkup_m3 is available
[ 7.024057] omap_rtc 44e3e000.rtc: char device (253:0)
[ 7.024088] omap_rtc 44e3e000.rtc: registered as rtc0
[ 7.422061] remoteproc remoteproc0: powering up wkup_m3
[ 7.494677] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 242888
[ 7.662083] remoteproc remoteproc0: remote processor wkup_m3 is now up
[ 7.668739] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x192
[ 7.686644] ov2659 0-0030: GPIO lookup for consumer pwrdn
[ 7.686658] ov2659 0-0030: using device tree for GPIO lookup
[ 7.686686] of_get_named_gpiod_flags: can't parse 'pwrdn-gpios' property of node '/ocp@44000000/i2c@44e0b000/ov2659@30[0]'
[ 7.686702] of_get_named_gpiod_flags: can't parse 'pwrdn-gpio' property of node '/ocp@44000000/i2c@44e0b000/ov2659@30[0]'
[ 7.686710] ov2659 0-0030: using lookup tables for GPIO lookup
[ 7.686718] ov2659 0-0030: No GPIO consumer pwrdn found
[ 7.720768] ov2659 0-0030: Sensor detection failed (3030, 0)
[ 7.752849] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp@44000000/i2c@4802a000/tlv320aic3106@1
b[0]'
[ 7.752875] of_get_named_gpiod_flags: can't parse 'gpio-reset' property of node '/ocp@44000000/i2c@4802a000/tlv320aic3106@1b
[0]'
[ 7.752976] tlv320aic3x-codec 1-001b: Linked as a consumer to regulator.1
[ 7.855966] ov2659 1-0030: GPIO lookup for consumer pwrdn
[ 7.855977] ov2659 1-0030: using device tree for GPIO lookup
[ 7.856004] of_get_named_gpiod_flags: can't parse 'pwrdn-gpios' property of node '/ocp@44000000/i2c@4802a000/ov2659@30[0]'
[ 7.856020] of_get_named_gpiod_flags: can't parse 'pwrdn-gpio' property of node '/ocp@44000000/i2c@4802a000/ov2659@30[0]'
[ 7.856029] ov2659 1-0030: using lookup tables for GPIO lookup
[ 7.856036] ov2659 1-0030: No GPIO consumer pwrdn found
[ 7.856861] tlv320aic3x-codec 1-001b: Linked as a consumer to regulator.10
[ 7.878211] pixcir_ts 1-005c: GPIO lookup for consumer attb
[ 7.878225] pixcir_ts 1-005c: using device tree for GPIO lookup
[ 7.878252] of_get_named_gpiod_flags: can't parse 'attb-gpios' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]'
[ 7.878289] of_get_named_gpiod_flags: parsed 'attb-gpio' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]' - sta
tus (0)
[ 7.878362] gpio gpiochip1: Persistence not supported for GPIO 22
[ 7.878374] pixcir_ts 1-005c: GPIO lookup for consumer reset
[ 7.878379] pixcir_ts 1-005c: using device tree for GPIO lookup
[ 7.878398] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]
'
[ 7.878412] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]'
[ 7.878421] pixcir_ts 1-005c: using lookup tables for GPIO lookup
[ 7.878428] pixcir_ts 1-005c: No GPIO consumer reset found
[ 7.878435] pixcir_ts 1-005c: GPIO lookup for consumer wake
[ 7.878440] pixcir_ts 1-005c: using device tree for GPIO lookup
[ 7.878453] of_get_named_gpiod_flags: can't parse 'wake-gpios' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]'
[ 7.878466] of_get_named_gpiod_flags: can't parse 'wake-gpio' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]'
[ 7.878472] pixcir_ts 1-005c: using lookup tables for GPIO lookup
[ 7.878478] pixcir_ts 1-005c: No GPIO consumer wake found
[ 7.878484] pixcir_ts 1-005c: GPIO lookup for consumer enable
[ 7.878489] pixcir_ts 1-005c: using device tree for GPIO lookup
[ 7.878502] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0
]'
[ 7.878515] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/ocp@44000000/i2c@4802a000/pixcir_ts@5c[0]
'
[ 7.878521] pixcir_ts 1-005c: using lookup tables for GPIO lookup
[ 7.878527] pixcir_ts 1-005c: No GPIO consumer enable found
[ 7.887231] ov2659 1-0030: Found OV2656 sensor
[ 7.950426] input: pixcir_tangoc as /devices/platform/44000000.ocp/4802a000.i2c/i2c-1/1-005c/input/input0
[ 8.026177] ov2659 1-0030: ov2659 1-0030 sensor driver registered !!
[ 8.048040] CAN device driver interface
[ 8.149077] c_can_platform 481cc000.can: c_can_platform device registered (regs=(ptrval), irq=60)
[ 8.312950] c_can_platform 481d0000.can: c_can_platform device registered (regs=(ptrval), irq=61)
[ 9.159909] omap-sham 53100000.sham: hw accel on OMAP rev 0.0
[ 9.275651] omap-aes 53501000.aes: OMAP AES hw accel rev: 0.1
[ 9.305224] omap-des 53701000.des: OMAP DES hw accel rev: 0.33
[ 9.372106] omap-aes 53501000.aes: will run requests pump with realtime priority
[ 9.403555] omap-des 53701000.des: will run requests pump with realtime priority
[ 11.498838] net eth0: initializing cpsw version 1.15 (0)
[ 11.665494] of_get_named_gpiod_flags: parsed 'row-gpios' property of node '/matrix_keypad0[0]' - status (0)
[ 11.665523] of_get_named_gpiod_flags: parsed 'row-gpios' property of node '/matrix_keypad0[1]' - status (0)
[ 11.665542] of_get_named_gpiod_flags: parsed 'row-gpios' property of node '/matrix_keypad0[2]' - status (0)
[ 11.665559] of_get_named_gpiod_flags: parsed 'col-gpios' property of node '/matrix_keypad0[0]' - status (0)
[ 11.665575] of_get_named_gpiod_flags: parsed 'col-gpios' property of node '/matrix_keypad0[1]' - status (0)
[ 11.666142] input: matrix_keypad0 as /devices/platform/matrix_keypad0/input/input1
[ 11.692840] Micrel KSZ9031 Gigabit PHY 4a101000.mdio:00: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=
4a101000.mdio:00, irq=POLL)
[ 11.830448] PM: bootloader does not support rtc-only!
[ 11.934989] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 11.961622] PM: Leaving EFUSE power domain active
[ 12.155610] of_get_named_gpiod_flags: can't parse 'simple-audio-card,hp-det-gpio' property of node '/sound0[0]'
[ 12.155634] of_get_named_gpiod_flags: can't parse 'simple-audio-card,mic-det-gpio' property of node '/sound0[0]'
[ 12.185468] asoc-simple-card sound0: tlv320aic3x-hifi <-> 4803c000.mcasp mapping ok
[ 12.193243] asoc-simple-card sound0: ASoC: no DMI vendor name!
[ 18.510189] dwc3 48390000.usb: Failed to get clk 'ref': -2
[ 18.617950] OF: graph: no port node found in /ocp@44000000/ocp2scp@483a8000/phy@483a8000
[ 18.716842] dwc3 483d0000.usb: Failed to get clk 'ref': -2
[ 19.042684] remoteproc remoteproc1: 54434000.pru is available
[ 19.133818] pru-rproc 54434000.pru: PRU rproc node pru@54434000 probed successfully
[ 19.244312] remoteproc remoteproc2: 54438000.pru is available
[ 19.250216] pru-rproc 54438000.pru: PRU rproc node pru@54438000 probed successfully
[ 19.288175] usbcore: registered new interface driver usbfs
[ 19.309982] remoteproc remoteproc3: 54474000.pru is available
[ 19.335728] usbcore: registered new interface driver hub
[ 19.344144] pru-rproc 54474000.pru: PRU rproc node pru@54474000 probed successfully
[ 19.370592] usbcore: registered new device driver usb
[ 19.392091] remoteproc remoteproc4: 54478000.pru is available
[ 19.420645] pru-rproc 54478000.pru: PRU rproc node pru@54478000 probed successfully
[ 19.441229] xhci-hcd xhci-hcd.4.auto: xHCI Host Controller
[ 19.509923] xhci-hcd xhci-hcd.4.auto: new USB bus registered, assigned bus number 1
[ 19.546088] xhci-hcd xhci-hcd.4.auto: hcc params 0x0238f06d hci version 0x100 quirks 0x0000000002010010
[ 19.583567] xhci-hcd xhci-hcd.4.auto: irq 105, io mem 0x483d0000
[ 19.598218] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[ 19.613582] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 19.633636] usb usb1: Product: xHCI Host Controller
[ 19.638558] usb usb1: Manufacturer: Linux 4.19.94-gbe5389fd85 xhci-hcd
[ 19.653531] usb usb1: SerialNumber: xhci-hcd.4.auto
[ 19.667953] hub 1-0:1.0: USB hub found
[ 19.686589] hub 1-0:1.0: 1 port detected
[ 19.697867] xhci-hcd xhci-hcd.4.auto: xHCI Host Controller
[ 19.715139] xhci-hcd xhci-hcd.4.auto: new USB bus registered, assigned bus number 2
[ 19.722883] xhci-hcd xhci-hcd.4.auto: Host supports USB 3.0 SuperSpeed
[ 19.749285] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 19.764549] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[ 19.772870] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 19.803688] usb usb2: Product: xHCI Host Controller
[ 19.808607] usb usb2: Manufacturer: Linux 4.19.94-gbe5389fd85 xhci-hcd
[ 19.823795] usb usb2: SerialNumber: xhci-hcd.4.auto
[ 19.846155] hub 2-0:1.0: USB hub found
[ 19.849999] hub 2-0:1.0: 1 port detected
[ 31.843482] vmmcwl_fixed: disabling
[ 63.623506] random: crng init done
烟雾：
root@am437x-hs-evm:~# lsmod Module Size Used by xhci_plat_hcd 16384 0 xhci_hcd 147456 1 xhci_plat_hcd usbcore 217088 2 xhci_plat_hcd,xhci_hcd pru_rproc 24576 0 irq_pruss_intc 16384 1 pru_rproc pruss 16384 1 pru_rproc dwc3 73728 0 udc_core 28672 1 dwc3 usb_common 16384 3 udc_core,usbcore,dwc3 ti_am335x_adc 20480 0 snd_soc_simple_card 16384 0 snd_soc_simple_card_utils 16384 1 snd_soc_simple_card pm33xx 16384 0 matrix_keypad 20480 0 matrix_keymap 16384 1 matrix_keypad omap_des 20480 0 des_generic 28672 1 omap_des omap_aes_driver 24576 0 pruss_soc_bus 16384 0 crypto_engine 16384 2 omap_des,omap_aes_driver omap_crypto 16384 2 omap_des,omap_aes_driver omap_sham 28672 0 ti_emif_sram 16384 1 pm33xx dwc3_omap 16384 0 am437x_vpfe 36864 0 c_can_platform 16384 0 c_can 20480 1 c_can_platform can_dev 28672 1 c_can pixcir_i2c_ts 16384 0 snd_soc_tlv320aic3x 57344 1 ov2659 16384 1 v4l2_fwnode 20480 2 am437x_vpfe,ov2659 wkup_m3_ipc 16384 1 pm33xx phy_omap_usb2 16384 3 wkup_m3_rproc 16384 1 rtc_omap 20480 2 omap_wdt 16384 0 remoteproc 49152 3 pru_rproc,wkup_m3_rproc,wkup_m3_ipc ti_am335x_tscadc 16384 1 ti_am335x_adc sch_fq_codel 20480 2
执行暂停显示如下：
root@am437x-hs-evm:~# echo mem > /sys/power/state [ 154.934116] PM: suspend entry (deep) [ 154.937746] PM: Syncing filesystems ... done. [ 154.970511] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 154.979433] OOM killer disabled. [ 154.982682] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 155.054499] GIC and Wakeupgen context save failed
与 Hong 的日志相比、这一切都很好。 有什么想法我做了什么错？ 谢谢
Marek
您好、Bin、
是的、您是对的、它可以通过按键盘上的键挂起并从支持状态中唤醒：
root@am437x-hs-evm:~# echo enabled > /sys/devices/platform/44000000.ocp/44e09000.serial/tty/ttyS0/power/wakeup root@am437x-hs-evm:~# root@am437x-hs-evm:~# root@am437x-hs-evm:~# echo mem > /sys/power/state [ 188.314216] PM: suspend entry (deep) [ 188.317845] PM: Syncing filesystems ... done. [ 188.369974] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 188.378890] OOM killer disabled. [ 188.382138] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 188.391289] Suspending console(s) (use no_console_suspend to debug) [ 188.469357] GIC and Wakeupgen context save failed [ 188.469357] pm33xx pm33xx: PM: Successfully put all powerdomains to target state [ 188.469357] PM: Wakeup source UART [ 188.494162] net eth0: initializing cpsw version 1.15 (0) [ 188.597875] Micrel KSZ9031 Gigabit PHY 4a101000.mdio:00: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr= 4a101000.mdio:00, irq=POLL) [ 188.659030] usb usb1: root hub lost power or was reset [ 188.659053] usb usb2: root hub lost power or was reset [ 188.822634] OOM killer enabled. [ 188.826133] Restarting tasks ... done. [ 188.857234] PM: suspend exit
但是、这意味着控制台暂停会中断它？ 谢谢。
您好、Bin、
还有一个问题。 板载我正在使用5.4主线内核我的挂起有问题、它在__cpu_suspend https://elixir.bootlin.com/linux/v5.4.100/source/arch/arm/kernel/suspend.c#L35中挂起 您是否知道如何调试该问题？
我看到 TI 的 git repos 5.4内核中也有、但我不确定它是否随某些 SDK 一起正式发布。
谢谢。
尊敬的 Marek：
我刚刚使用主线内核 v5.4.100版本测试了暂停/恢复、它在非 HS GP EVM 上工作正常。 下面随附的是我使用的.config。
e2e.ti.com/.../am437x_5F00_config.v5.4.100
[引用 userid="70162" URL"~/support/processors-group/processors/f/processors-forum/1004416/processor-sdk-am437x-am437x-hs-evm-linux-sdk-bin-06-03-00-106/3726612 #3726612"]我看到 TI 的 git repos 5.4内核中也有这种情况，但我不确定它是否与某些 SDK 一起正式发布。是的、我们正在发布下一个具有 AM437x 内核 v5.4的 Processor SDK 的最后一个阶段。 它将在一两个月后在 TI.com 上提供。