Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24) Reading boot sector Loading u-boot.bin from mmc U-Boot 2011.06 (Mar 09 2012 - 14:23:30) OMAP3530-GP ES3.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 mHz OMAP3 Beagle board + LPDDR/NAND I2C: ready DRAM: 256 MiB NAND: 256 MiB MMC: OMAP SD/MMC: 0 In: serial Out: serial Err: serial Beagle Rev C1/C2/C3 timed out in wait_for_pin: I2C_STAT=0 I2C read: I/O error Unrecognized expansion board: 0 Die ID #5cf200030000000004013f7902012010 Hit any key to stop autoboot: 2  1  0 reading uimage 3228432 bytes read ## Booting kernel from Legacy Image at 80000000 ... Image Name: Linux-3.5.0-rc3-00007-gfafcdd5 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 3228368 Bytes = 3.1 MiB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... Uncompressing Linux... done, booting the kernel. [ 0.000000] Booting Linux on physical CPU 0 [ 0.000000] Linux version 3.5.0-rc3-00007-gfafcdd5 (paul@nozomi) (gcc version 4.5.1 (Sourcery G++ Lite 2010.09-50) ) #1 SMP Fri Jun 22 08:54:24 MDT 2012 [ 0.000000] CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache [ 0.000000] Machine: OMAP3 Beagle Board [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] OMAP3430/3530 ES3.0 (l2cache iva sgx neon isp ) [ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz [ 0.000000] PERCPU: Embedded 8 pages/cpu @c0dfc000 s11520 r8192 d13056 u32768 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64768 [ 0.000000] Kernel command line: console=ttyO2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext3 mem=256M rootwait earlyprintk [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] Memory: 255MB = 255MB total [ 0.000000] Memory: 246564k/246564k available, 15580k reserved, 0K highmem [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc05bb468 (5838 kB) [ 0.000000] .init : 0xc05bc000 - 0xc0608d00 ( 308 kB) [ 0.000000] .data : 0xc060a000 - 0xc069d2f0 ( 589 kB) [ 0.000000] .bss : 0xc069d314 - 0xc0bf5948 (5474 kB) [ 0.000000] Hierarchical RCU implementation. [ 0.000000] NR_IRQS:474 [ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts [ 0.000000] Total of 96 interrupts on 1 active controller [ 0.000000] OMAP clockevent source: GPTIMER12 at 32768 Hz [ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms [ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz [ 0.000000] Console: colour dummy device 80x30 [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768 [ 0.000000] ... CHAINHASH_SIZE: 16384 [ 0.000000] memory used by lock dependency info: 3695 kB [ 0.000000] per task-struct memory footprint: 1152 bytes [ 0.081146] Calibrating delay loop... 468.46 BogoMIPS (lpj=1830912) [ 0.081176] pid_max: default: 32768 minimum: 301 [ 0.082183] Security Framework initialized [ 0.082550] Mount-cache hash table entries: 512 [ 0.089813] CPU: Testing write buffer coherency: ok [ 0.090759] CPU0: thread -1, cpu 0, socket -1, mpidr 0 [ 0.090881] Setting up static identity map for 0x804057d8 - 0x80405848 [ 0.093444] Brought up 1 CPUs [ 0.093475] SMP: Total of 1 processors activated (468.46 BogoMIPS). [ 0.122741] dummy: [ 0.126068] NET: Registered protocol family 16 [ 0.127868] GPMC revision 5.0 [ 0.128173] gpmc: irq-20 could not claim: err -22 [ 0.143707] OMAP GPIO hardware version 2.5 [ 0.164672] omap_mux_init: Add partition: #1: core, flags: 0 [ 0.168395] OMAP3 Beagle Rev: C1/C2/C3 [ 0.200134] Reprogramming SDRC clock to 332000000 Hz [ 0.201538] Found NAND on CS0 [ 0.201568] Registering NAND on CS0 [ 0.203582] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.225708] omap-mcbsp.2: alias fck already exists [ 0.226837] omap-mcbsp.3: alias fck already exists [ 0.233581] OMAP DMA hardware revision 4.0 [ 0.329620] bio: create slab at 0 [ 0.342346] SCSI subsystem initialized [ 0.346069] usbcore: registered new interface driver usbfs [ 0.347503] usbcore: registered new interface driver hub [ 0.348693] usbcore: registered new device driver usb [ 0.352050] omap_i2c omap_i2c.1: bus 1 rev1.3.12 at 2600 kHz [ 0.366790] twl 1-0048: PIH (irq 7) chaining IRQs 320..328 [ 0.367675] twl 1-0048: power (irq 325) chaining IRQs 328..335 [ 0.371582] twl4030_gpio twl4030_gpio: gpio (irq 320) chaining IRQs 336..353 [ 0.384460] vdd_mpu_iva: 600 <--> 1450 mV normal [ 0.387573] vdd_core: 600 <--> 1450 mV normal [ 0.391479] VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby [ 0.394775] VDAC: 1800 mV normal standby [ 0.397827] VDVI: 1800 mV normal standby [ 0.401763] VSIM: 1800 <--> 3000 mV at 1800 mV normal standby [ 0.403381] omap_i2c omap_i2c.3: bus 3 rev1.3.12 at 100 kHz [ 0.417480] Switching to clocksource 32k_counter [ 0.585235] NET: Registered protocol family 2 [ 0.586456] IP route cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.589263] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.590393] TCP bind hash table entries: 8192 (order: 6, 294912 bytes) [ 0.596038] TCP: Hash tables configured (established 8192 bind 8192) [ 0.596160] TCP: reno registered [ 0.596221] UDP hash table entries: 256 (order: 2, 20480 bytes) [ 0.596618] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes) [ 0.598083] NET: Registered protocol family 1 [ 0.600158] RPC: Registered named UNIX socket transport module. [ 0.600189] RPC: Registered udp transport module. [ 0.600219] RPC: Registered tcp transport module. [ 0.600219] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.601623] NetWinder Floating Point Emulator V0.97 (double precision) [ 0.834320] VFS: Disk quotas dquot_6.5.2 [ 0.834808] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.837219] NFS: Registering the id_resolver key type [ 0.837951] Key type id_resolver registered [ 0.840423] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 0.842071] msgmni has been set to 481 [ 0.848724] io scheduler noop registered [ 0.848754] io scheduler deadline registered [ 0.849121] io scheduler cfq registered (default) [ 0.853607] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.864166] omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0 [ 0.866790] omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1 [ 0.868774] omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2 [ 1.512054] console [ttyO2] enabled [ 1.568572] brd: module loaded [ 1.601715] loop: module loaded [ 1.616546] mtdoops: mtd device (mtddev=name/number) must be supplied [ 1.624603] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xba (Micron NAND 256MiB 1,8V 16-bit), page size: 2048, OOB size: 64 [ 1.636779] Creating 5 MTD partitions on "omap2-nand.0": [ 1.642486] 0x000000000000-0x000000080000 : "X-Loader" [ 1.658264] 0x000000080000-0x000000260000 : "U-Boot" [ 1.672210] 0x000000260000-0x000000280000 : "U-Boot Env" [ 1.684692] 0x000000280000-0x000000680000 : "Kernel" [ 1.700317] 0x000000680000-0x000010000000 : "File System" [ 1.924377] OneNAND driver initializing [ 1.948486] usbcore: registered new interface driver asix [ 1.955383] usbcore: registered new interface driver cdc_ether [ 1.962738] usbcore: registered new interface driver net1080 [ 1.969665] usbcore: registered new interface driver cdc_subset [ 1.976928] usbcore: registered new interface driver zaurus [ 1.985015] usbcore: registered new interface driver cdc_ncm [ 1.994232] usbcore: registered new interface driver cdc_wdm [ 2.000427] Initializing USB Mass Storage driver... [ 2.006561] usbcore: registered new interface driver usb-storage [ 2.013122] USB Mass Storage support registered. [ 2.019805] usbcore: registered new interface driver libusual [ 2.026794] usbcore: registered new interface driver usbtest [ 2.032958] udc: OMAP UDC driver, version: 4 October 2004 (iso) (dma) [ 2.044494] mousedev: PS/2 mouse device common for all mice [ 2.059051] input: twl4030_pwrbutton as /devices/platform/omap_i2c.1/i2c-1/1-0049/twl4030_pwrbutton/input/input0 [ 2.074127] twl_rtc twl_rtc: Enabling TWL-RTC [ 2.084472] twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0 [ 2.092987] i2c /dev entries driver [ 2.101226] Driver for 1-wire Dallas network protocol. [ 2.111450] omap_wdt: OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec [ 2.120391] twl4030_wdt twl4030_wdt: Failed to register misc device [ 2.127349] twl4030_wdt: probe of twl4030_wdt failed with error -16 [ 2.139831] omap_hsmmc omap_hsmmc.0: Failed to get debounce clk [ 2.529571] usbcore: registered new interface driver usbhid [ 2.535736] usbhid: USB HID core driver [ 2.539794] oprofile: hardware counters not available [ 2.545196] oprofile: using timer interrupt. [ 2.551055] TCP: cubic registered [ 2.554565] Initializing XFRM netlink socket [ 2.559356] NET: Registered protocol family 17 [ 2.564208] NET: Registered protocol family 15 [ 2.569671] Key type dns_resolver registered [ 2.574554] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1 [ 2.597503] PM: no software I/O chain control; some wakeups may be lost [ 2.605316] ThumbEE CPU extension supported. [ 2.657531] clock: disabling unused clocks to save power [ 2.669738] VDVI: incomplete constraints, leaving on [ 2.675231] VDAC: incomplete constraints, leaving on [ 2.687499] input: gpio-keys as /devices/platform/gpio-keys/input/input1 [ 2.699249] twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:40 UTC (946684840) [ 2.713195] Waiting for root device /dev/mmcblk0p2... [ 2.797332] mmc0: new SD card at address 8001 [ 2.806152] mmcblk0: mmc0:8001 SD02G 1.89 GiB [ 2.819580] mmcblk0: p1 p2 [ 4.167633] kjournald starting. Commit interval 5 seconds [ 4.174285] EXT3-fs (mmcblk0p2): warning: maximal mount count reached, running e2fsck is recommended [ 4.367156] EXT3-fs (mmcblk0p2): using internal journal [ 4.377349] EXT3-fs (mmcblk0p2): recovery complete [ 4.382537] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode [ 4.390380] VFS: Mounted root (ext3 filesystem) on device 179:2. [ 4.397918] Freeing init memory: 304K INIT: version 2.86 booting Starting the hotplug events dispatcher udevd [ 5.614746] udevd (600): /proc/600/oom_adj is deprecated, please use /proc/600/oom_score_adj instead. Synthesizing the initial hotplug events Remounting root file system... mount: according to mtab, /proc is already mounted on /proc WARNING: Couldn't open directory /lib/modules/3.5.0-rc3-00007-gfafcdd5: No such file or directory FATAL: Could not open /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep.temp for writing: No such file or directory root: mount: mount point /proc/bus/usb does not exist Setting up IP spoofing protection: rp_filter. Configuring network interfaces... modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory ifconfig: SIOCGIFFLAGS: No such device modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory eth0 No such device modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory udhcpc: SIOCGIFINDEX: No such device done. Starting portmap daemon: portmap. Tue Jul 22 00:18:00 UTC 2008 INIT: Entering runlevel: 5 ALSA: Restoring mixer settings... /usr/sbin/alsactl: load_state:1327: No soundcards found... Starting Dropbear SSH server: modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory modprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory dropbear. Starting advanced power management daemon: No APM support in kernel (failed.) Starting system message bus: dbus. Starting syslogd/klogd: start-stop-daemon: lseek: Invalid argument * Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon [ ok ] Starting Bluetooth subsystem: hcidmodprobe: FATAL: Could not load /lib/modules/3.5.0-rc3-00007-gfafcdd5/modules.dep: No such file or directory hid2hci. .-------. | | .-. | | |-----.-----.-----.| | .----..-----.-----. | | | __ | ---'| '--.| .-'| | | | | | | | |--- || --'| | | ' | | | | '---'---'--'--'--. |-----''----''--' '-----'-'-'-' -' | '---' The Angstrom Distribution beagleboard ttyO2 Angstrom 2008.1-test-20080712 beagleboard ttyO2 beagleboard login: root login[1720]: root login on `ttyO2' root@beagleboard:~# echo enabled > /sys/devices/platform/omap_uart.2/tty/ttyO2/p ower/wakeup root@beagleboard:~# echo mem > /sys/power/state [ 37.485076] PM: Syncing filesystems ... done. [ 37.528289] Freezing user space processes ... (elapsed 0.02 seconds) done. [ 37.559539] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) done. [ 37.567321] Suspending console(s) (use no_console_suspend to debug) [ 37.703643] PM: suspend of devices complete after 125.334 msecs [ 37.707397] PM: late suspend of devices complete after 3.692 msecs [ 37.713439] PM: noirq suspend of devices complete after 6.012 msecs [ 37.713500] Disabling non-boot CPUs ... [ 38.299468] Powerdomain (core_pwrdm) didn't enter target state 1 [ 38.299499] Could not enter target state in pm_suspend [ 38.302551] PM: noirq resume of devices complete after 2.838 msecs [ 38.306640] PM: early resume of devices complete after 2.258 msecs [ 38.593200] PM: resume of devices complete after 286.407 msecs [ 38.670806] Restarting tasks ... done. root@beagleboard:~# # root@beagleboard:~# echo mem > /sys/power/state [ 42.479248] PM: Syncing filesystems ... done. [ 42.504608] Freezing user space processes ... (elapsed 0.02 seconds) done. [ 42.535766] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) done. [ 42.543609] Suspending console(s) (use no_console_suspend to debug) [ 42.671936] PM: suspend of devices complete after 117.370 msecs [ 42.675445] PM: late suspend of devices complete after 3.479 msecs [ 42.681213] PM: noirq suspend of devices complete after 5.737 msecs [ 42.681213] Disabling non-boot CPUs ... [ 42.844573] Powerdomain (core_pwrdm) didn't enter target state 1 [ 42.844573] Could not enter target state in pm_suspend [ 42.847595] PM: noirq resume of devices complete after 2.807 msecs [ 42.851623] PM: early resume of devices complete after 2.288 msecs [ 43.137756] PM: resume of devices complete after 286.010 msecs [ 43.198303] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1210,INA:0,ON:1211,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:2,INA:0,ON:3,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1210,INA:0,ON:1211,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:0,RET:1210,INA:0,ON:1211,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1210,INA:0,ON:1211,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (16) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) core_l4_clkdm->core_pwrdm (24) core_l3_clkdm->core_pwrdm (4) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) neon_clkdm->neon_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) prm_clkdm->wkup_pwrdm (0) cm_clkdm->core_pwrdm (0) root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.0/power/autosusp end_delay_ms root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.1/power/autosusp end_delay_ms root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.2/power/autosusp end_delay_ms root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.3/power/autosusp end_delay_ms -sh: cannot create /sys/devices/platform/omap_uart.3/power/autosuspend_delay_ms: nonexistent directory root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1316,INA:0,ON:1317,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:2,INA:0,ON:3,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1316,INA:0,ON:1317,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:0,RET:1316,INA:0,ON:1317,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1316,INA:0,ON:1317,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (16) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) core_l4_clkdm->core_pwrdm (21) core_l3_clkdm->core_pwrdm (4) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) neon_clkdm->neon_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) prm_clkdm->wkup_pwrdm (0) cm_clkdm->core_pwrdm (0) root@beagleboard:~# echo -1 > /sys/devices/platform/omap_uart.0/power/autosuspen d_delay_ms root@beagleboard:~# echo -1 > /sys/devices/platform/omap_uart.1/power/autosuspen d_delay_ms root@beagleboard:~# echo -1 > /sys/devices/platform/omap_uart.2/power/autosuspen d_delay_ms root@beagleboard:~# echo -1 > /sys/devices/platform/omap_uart.3/power/autosuspen d_delay_ms -sh: cannot create /sys/devices/platform/omap_uart.3/power/autosuspend_delay_ms: nonexistent directory root@beagleboard:~# echo 1 > /debug/pm_debug/enable_off_mode root@beagleboard:~# echo mem > /sys/power/state [ 67.638946] PM: Syncing filesystems ... done. [ 67.667694] Freezing user space processes ... (elapsed 0.02 seconds) done. [ 67.698944] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) done. [ 67.706787] Suspending console(s) (use no_console_suspend to debug) [ 67.835601] PM: suspend of devices complete after 117.829 msecs [ 67.839202] PM: late suspend of devices complete after 3.600 msecs [ 67.844848] PM: noirq suspend of devices complete after 5.615 msecs [ 67.844879] Disabling non-boot CPUs ... [ 71.351776] Powerdomain (core_pwrdm) didn't enter target state 0 [ 71.351776] Could not enter target state in pm_suspend [ 71.355377] PM: noirq resume of devices complete after 3.234 msecs [ 71.360015] PM: early resume of devices complete after 2.319 msecs [ 71.644531] PM: resume of devices complete after 284.301 msecs [ 71.705078] Restarting tasks ... done. root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:38,RET:1430,INA:0,ON:1469,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:2,INA:0,ON:4,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:38,RET:1430,INA:0,ON:1469,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:38,RET:1430,INA:0,ON:1469,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:38,RET:1430,INA:0,ON:1469,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (16) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) core_l4_clkdm->core_pwrdm (24) core_l3_clkdm->core_pwrdm (4) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) neon_clkdm->neon_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) prm_clkdm->wkup_pwrdm (0) cm_clkdm->core_pwrdm (0) root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.0/power/autosusp end_delay_ms root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.1/power/autosusp end_delay_ms root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.2/power/autosusp end_delay_ms root@beagleboard:~# echo 1000 > /sys/devices/platform/omap_uart.3/power/autosusp end_delay_ms -sh: cannot create /sys/devices/platform/omap_uart.3/power/autosuspend_delay_ms: nonexistent directory root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:58,RET:1430,INA:0,ON:1489,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:2,INA:0,ON:4,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:58,RET:1430,INA:0,ON:1489,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:58,RET:1430,INA:0,ON:1489,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:58,RET:1430,INA:0,ON:1489,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (16) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) core_l4_clkdm->core_pwrdm (21) core_l3_clkdm->core_pwrdm (4) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) neon_clkdm->neon_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) prm_clkdm->wkup_pwrdm (0) cm_clkdm->core_pwrdm (0) root@beagleboard:~#