U-Boot SPL 2014.01-00219-gc4d376f (Feb 18 2014 - 19:57:32) U-Boot 2014.01-00219-gc4d376f (Feb 18 2014 - 19:57:32) TEGRA114 Board: NVIDIA Dalmore I2C: ready DRAM: 2 GiB MMC: Tegra SD/MMC: 0, Tegra SD/MMC: 1 In: serial Out: serial Err: serial Net: Net Initialization Skipped No ethernet found. Hit any key to stop autoboot: 2  0 Tegra114 (Dalmore) # Tegra114 (Dalmore) # usb reset (Re)start USB... USB0: USB EHCI 1.10 scanning bus 0 for devices... 2 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found scanning usb for ethernet devices... Warning: asx0 using MAC address from net device 1 Ethernet Device(s) found Tegra114 (Dalmore) # setenv bootargs 'ignore_loglevel console=ttyS0,115200n8 rw root=/dev/mmcblk0p1 rootwait gpt debug init=/bin/bash' Tegra114 (Dalmore) # setenv ipaddr 192.168.100.100; setenv serverip 192.168.100.1; setenv tftpserverip 192.168.100.1 Tegra114 (Dalmore) # tftpboot 0x81000000 zImage.multi_v7_defconfig Using asx0 device TFTP from server 192.168.100.1; our IP address is 192.168.100.100 Filename 'zImage.multi_v7_defconfig'. Load address: 0x81000000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ## 3.3 MiB/s done Bytes transferred = 5747680 (57b3e0 hex) Tegra114 (Dalmore) # tftpboot 0x82000000 tegra114-dalmore.dtb Using asx0 device TFTP from server 192.168.100.1; our IP address is 192.168.100.100 Filename 'tegra114-dalmore.dtb'. Load address: 0x82000000 Loading: *### 3 MiB/s done Bytes transferred = 34638 (874e hex) Tegra114 (Dalmore) # bootz 0x81000000 - 0x82000000 Kernel image @ 0x81000000 [ 0x000000 - 0x57b3e0 ] ## Flattened Device Tree blob at 82000000 Booting using the fdt blob at 0x82000000 Loading Device Tree to 8fff4000, end 8ffff74d ... OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.19.0-rc5-13216-gec6f34e (pwalmsley@tamien) (gcc version 4.7.3 20130328 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.04-20130415 - Linaro GCC 2013.04) ) #1 SMP Sun Jan 18 17:52:22 PST 2015 [ 0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache [ 0.000000] Machine model: NVIDIA Tegra114 Dalmore evaluation board [ 0.000000] debug: ignoring loglevel setting. [ 0.000000] cma: Reserved 64 MiB at 0xfb800000 [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] On node 0 totalpages: 524032 [ 0.000000] free_area_init_node: node 0, pgdat c0dfe980, node_mem_map ee7f8000 [ 0.000000] DMA zone: 1520 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 194560 pages, LIFO batch:31 [ 0.000000] HighMem zone: 329472 pages, LIFO batch:31 [ 0.000000] PERCPU: Embedded 10 pages/cpu @ee7ab000 s8512 r8192 d24256 u40960 [ 0.000000] pcpu-alloc: s8512 r8192 d24256 u40960 alloc=10*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 522512 [ 0.000000] Kernel command line: ignore_loglevel console=ttyS0,115200n8 rw root=/dev/mmcblk0p1 rootwait gpt debug init=/bin/bash [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 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: 2000472K/2096128K available (7477K kernel code, 954K rwdata, 3052K rodata, 772K init, 306K bss, 30120K reserved, 65536K cma-reserved, 1252352K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB) [ 0.000000] vmalloc : 0xf0000000 - 0xff000000 ( 240 MB) [ 0.000000] lowmem : 0xc0000000 - 0xef800000 ( 760 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0208000 - 0xc0c50920 (10531 kB) [ 0.000000] .init : 0xc0c51000 - 0xc0d12000 ( 772 kB) [ 0.000000] .data : 0xc0d12000 - 0xc0e00880 ( 955 kB) [ 0.000000] .bss : 0xc0e00880 - 0xc0e4d1a8 ( 307 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] L2C: failed to init: -19 [ 0.000009] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483648000ns [ 0.000030] Switching to timer-based delay loop, resolution 1000ns [ 0.002594] Architected cp15 timer(s) running at 12.00MHz (virt). [ 0.002617] sched_clock: 56 bits at 12MHz, resolution 83ns, wraps every 2863311536128ns [ 0.002630] Switching to timer-based delay loop, resolution 83ns [ 0.002959] Console: colour dummy device 80x30 [ 0.002982] Calibrating delay loop (skipped), value calculated using timer frequency.. 24.00 BogoMIPS (lpj=60000) [ 0.002997] pid_max: default: 32768 minimum: 301 [ 0.003123] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.003137] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.003778] CPU: Testing write buffer coherency: ok [ 0.003986] /cpus/cpu@0 missing clock-frequency property [ 0.004016] /cpus/cpu@1 missing clock-frequency property [ 0.004044] /cpus/cpu@2 missing clock-frequency property [ 0.004073] /cpus/cpu@3 missing clock-frequency property [ 0.004087] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.004137] Setting up static identity map for 0x80911820 - 0x809118b8 [ 0.005996] Tegra Revision: A01 SKU: 0 CPU Process: 1 Core Process: 0 [ 0.007062] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.007616] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 [ 0.008133] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 [ 0.008199] Brought up 4 CPUs [ 0.008220] SMP: Total of 4 processors activated (96.00 BogoMIPS). [ 0.008228] CPU: All CPU(s) started in SVC mode. [ 0.008787] devtmpfs: initialized [ 0.009642] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0 [ 0.011543] pinctrl core: initialized pinctrl subsystem [ 0.022545] NET: Registered protocol family 16 [ 0.024662] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.037489] cpuidle: using governor ladder [ 0.052507] cpuidle: using governor menu [ 0.066306] No ATAGs? [ 0.066341] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers. [ 0.066352] hw-breakpoint: maximum watchpoint size is 8 bytes. [ 0.069472] Serial: AMBA PL011 UART driver [ 0.096496] dvdd_ts: Failed to request enable GPIO61: -517 [ 0.096601] reg-fixed-voltage regulators:regulator@1: Failed to register regulator: -517 [ 0.096625] platform regulators:regulator@1: Driver reg-fixed-voltage requests probe deferral [ 0.096802] usb1_vbus: Failed to request enable GPIO108: -517 [ 0.096898] reg-fixed-voltage regulators:regulator@3: Failed to register regulator: -517 [ 0.096920] platform regulators:regulator@3: Driver reg-fixed-voltage requests probe deferral [ 0.097096] usb2_vbus: Failed to request enable GPIO86: -517 [ 0.097192] reg-fixed-voltage regulators:regulator@4: Failed to register regulator: -517 [ 0.097213] platform regulators:regulator@4: Driver reg-fixed-voltage requests probe deferral [ 0.097414] reg-fixed-voltage regulators:regulator@5: Failed to find supply vin [ 0.097516] reg-fixed-voltage regulators:regulator@5: Failed to register regulator: -517 [ 0.097537] platform regulators:regulator@5: Driver reg-fixed-voltage requests probe deferral [ 0.097631] platform regulators:regulator@6: Driver reg-fixed-voltage requests probe deferral [ 0.097807] VDD_5V0_HDMI_CON: Failed to request enable GPIO81: -517 [ 0.097899] reg-fixed-voltage regulators:regulator@7: Failed to register regulator: -517 [ 0.097920] platform regulators:regulator@7: Driver reg-fixed-voltage requests probe deferral [ 0.100281] vgaarb: loaded [ 0.100960] SCSI subsystem initialized [ 0.101147] libata version 3.00 loaded. [ 0.101477] usbcore: registered new interface driver usbfs [ 0.101547] usbcore: registered new interface driver hub [ 0.101623] usbcore: registered new device driver usb [ 0.105488] tps65090 2-0048: No cache defaults, reading back from HW [ 0.107633] vdd-sys-5v0: supplied by vdd_ac_bat [ 0.108727] vdd-sys-3v3: supplied by vdd_ac_bat [ 0.109791] vdd-ao: supplied by vdd_ac_bat [ 0.110182] vdd-lcd-bl: supplied by vdd_ac_bat [ 0.110552] TPS65090_RAILSFET2: supplied by vdd_ac_bat [ 0.110924] vdd-modem-3v3: supplied by vdd-sys-3v3 [ 0.111474] avdd-lcd: supplied by vdd-sys-3v3 [ 0.111997] vdd-lvds: supplied by vdd-sys-3v3 [ 0.112862] vdd-sd-slot: supplied by vdd-sys-3v3 [ 0.113410] vdd-com-3v3: supplied by vdd-sys-3v3 [ 0.113942] vdd-sby-5v0: supplied by vdd_ac_bat [ 0.114157] vdd-sby-3v3: supplied by vdd_ac_bat [ 0.114919] genirq: Setting trigger mode 8 for irq 341 failed (gic_set_type+0x0/0x98) [ 0.114942] palmas 2-0058: Irq flag is 0x00000000 [ 0.118172] palmas 2-0058: Muxing GPIO ff, PWM 0, LED 0 [ 0.120913] vddio-ddr: supplied by vdd-ao [ 0.122520] vddio-1v8: supplied by vdd-ao [ 0.124292] vdd-core: supplied by vdd-sys-3v3 [ 0.127017] avdd-pll: supplied by vdd-sys-3v3 [ 0.128985] sdhci-vdd-sd-slot: ramp_delay not set [ 0.129367] sdhci-vdd-sd-slot: supplied by vdd-sys-3v3 [ 0.131210] avdd-cam1: supplied by vdd-sys-3v3 [ 0.132336] avdd-cam2: supplied by vdd-sys-3v3 [ 0.133487] avdd-dsi-csi: supplied by vddio-1v8 [ 0.134629] vpp-fuse: supplied by vdd-sys-3v3 [ 0.135747] LDO5: supplied by vdd_ac_bat [ 0.137024] vdd-sensor-2v85: supplied by vdd-sys-3v3 [ 0.138171] vdd-af-cam1: supplied by vdd-sys-3v3 [ 0.142933] vdd-rtc: supplied by vdd-ao [ 0.148107] vddio-sdmmc-2: supplied by sdhci-vdd-sd-slot [ 0.149226] hvdd-usb: supplied by vdd-sys-5v0 [ 0.152962] avdd-usb: supplied by vdd-sys-5v0 [ 0.156048] Linux video capture interface: v2.00 [ 0.156106] pps_core: LinuxPPS API ver. 1 registered [ 0.156114] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 0.156151] PTP clock support registered [ 0.156387] EDAC MC: Ver: 3.0.0 [ 0.156948] Advanced Linux Sound Architecture Driver Initialized. [ 0.158055] Switched to clocksource arch_sys_counter [ 0.169122] NET: Registered protocol family 2 [ 0.169695] TCP established hash table entries: 8192 (order: 3, 32768 bytes) [ 0.169784] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.169972] TCP: Hash tables configured (established 8192 bind 8192) [ 0.170018] TCP: reno registered [ 0.170033] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.170074] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.170264] NET: Registered protocol family 1 [ 0.170512] RPC: Registered named UNIX socket transport module. [ 0.170522] RPC: Registered udp transport module. [ 0.170530] RPC: Registered tcp transport module. [ 0.170537] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.170561] PCI: CLS 0 bytes, default 64 [ 0.172828] futex hash table entries: 1024 (order: 4, 65536 bytes) [ 0.185028] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.185862] NFS: Registering the id_resolver key type [ 0.185895] Key type id_resolver registered [ 0.185904] Key type id_legacy registered [ 0.185994] ntfs: driver 2.1.31 [Flags: R/O]. [ 0.187143] bounce: pool size: 64 pages [ 0.187361] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.187377] io scheduler noop registered [ 0.187391] io scheduler deadline registered [ 0.187590] io scheduler cfq registered (default) [ 0.208996] tegra-apbdma 6000a000.dma: Tegra20 APB DMA driver register 32 channels [ 0.275089] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled [ 0.277506] msm_serial: driver initialized [ 0.278440] console [ttyS0] disabled [ 0.278477] 70006300.serial: ttyS0 at MMIO 0x70006300 (irq = 329, base_baud = 25500000) is a Tegra [ 1.221497] console [ttyS0] enabled [ 1.225781] STMicroelectronics ASC driver initialized [ 1.231926] [drm] Initialized drm 1.1.0 20060810 [ 1.239470] platform 54300000.dsi: Driver tegra-dsi requests probe deferral [ 1.246857] tegra-hdmi 54280000.hdmi: failed to get HDMI regulator [ 1.253069] platform 54280000.hdmi: Driver tegra-hdmi requests probe deferral [ 1.266705] loop: module loaded [ 1.274952] m25p80 spi32766.0: w25q32dw (4096 Kbytes) [ 1.282674] CAN device driver interface [ 1.287666] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.2.15-k [ 1.294718] igb: Copyright (c) 2007-2014 Intel Corporation. [ 1.302035] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver [ 1.309486] usbcore: registered new interface driver pegasus [ 1.315230] usbcore: registered new interface driver asix [ 1.320687] usbcore: registered new interface driver ax88179_178a [ 1.326836] usbcore: registered new interface driver cdc_ether [ 1.332748] usbcore: registered new interface driver smsc75xx [ 1.338582] usbcore: registered new interface driver smsc95xx [ 1.344386] usbcore: registered new interface driver net1080 [ 1.350103] usbcore: registered new interface driver cdc_subset [ 1.356084] usbcore: registered new interface driver zaurus [ 1.361749] usbcore: registered new interface driver cdc_ncm [ 1.367720] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.374254] ehci-pci: EHCI PCI platform driver [ 1.378754] ehci-platform: EHCI generic platform driver [ 1.384151] ehci-omap: OMAP-EHCI Host Controller driver [ 1.389511] ehci-orion: EHCI orion driver [ 1.393656] SPEAr-ehci: EHCI SPEAr driver [ 1.397792] ehci-st: EHCI STMicroelectronics driver [ 1.402808] ehci-exynos: EHCI EXYNOS driver [ 1.407148] tegra-ehci: Tegra EHCI driver [ 1.411415] platform 7d008000.usb: Driver tegra-ehci requests probe deferral [ 1.418541] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 1.424736] ohci-pci: OHCI PCI platform driver [ 1.429238] ohci-platform: OHCI generic platform driver [ 1.434602] ohci-omap3: OHCI OMAP3 driver [ 1.438749] SPEAr-ohci: OHCI SPEAr driver [ 1.442892] ohci-st: OHCI STMicroelectronics driver [ 1.448327] usbcore: registered new interface driver usb-storage [ 1.454597] platform 7d008000.usb-phy: Driver tegra-phy requests probe deferral [ 1.463445] mousedev: PS/2 mouse device common for all mice [ 1.473733] palmas-rtc 7000d000.i2c:tps65913@58:rtc: rtc core: registered 7000d000.i2c:tps659 as rtc0 [ 1.484703] tegra_rtc 7000e000.rtc: rtc core: registered 7000e000.rtc as rtc1 [ 1.491887] tegra_rtc 7000e000.rtc: Tegra internal Real Time Clock [ 1.498608] i2c /dev entries driver [ 1.504001] usbcore: registered new interface driver uvcvideo [ 1.509756] USB Video Class driver (1.1.1) [ 1.513863] gspca_main: v2.14.0 registered [ 1.518632] sbs-battery 0-000b: sbs_probe: Failed to get device status [ 1.525176] sbs-battery: probe of 0-000b failed with error -121 [ 1.538723] Driver 'mmcblk' needs updating - please use bus_type methods [ 1.545517] sdhci: Secure Digital Host Controller Interface driver [ 1.551699] sdhci: Copyright(c) Pierre Ossman [ 1.557024] Synopsys Designware Multimedia Card Interface Driver [ 1.563924] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.570270] sdhci-tegra 78000400.sdhci: Got CD GPIO [ 1.575175] sdhci-tegra 78000400.sdhci: Got WP GPIO [ 1.581162] sdhci-tegra 78000400.sdhci: No vmmc regulator found [ 1.587089] sdhci-tegra 78000400.sdhci: No vqmmc regulator found [ 1.593100] mmc0: Invalid maximum block size, assuming 512 bytes [ 1.633188] mmc0: SDHCI controller on 78000400.sdhci [78000400.sdhci] using ADMA [ 1.640787] sdhci-tegra 78000600.sdhci: No vmmc regulator found [ 1.646717] sdhci-tegra 78000600.sdhci: No vqmmc regulator found [ 1.652725] mmc1: Invalid maximum block size, assuming 512 bytes [ 1.693072] mmc1: SDHCI controller on 78000600.sdhci [78000600.sdhci] using ADMA [ 1.705450] ledtrig-cpu: registered to indicate activity on CPUs [ 1.711709] usbcore: registered new interface driver usbhid [ 1.717295] usbhid: USB HID core driver [ 1.730059] usbcore: registered new interface driver snd-usb-audio [ 1.782028] mmc1: BKOPS_EN bit is not set [ 1.789002] mmc1: new high speed MMC card at address 0001 [ 1.794766] mmcblk0: mmc1:0001 SEM32G 29.1 GiB [ 1.799418] mmcblk0boot0: mmc1:0001 SEM32G partition 1 4.00 MiB [ 1.805452] mmcblk0boot1: mmc1:0001 SEM32G partition 2 4.00 MiB [ 1.811484] mmcblk0rpmb: mmc1:0001 SEM32G partition 3 4.00 MiB [ 1.819834] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 [ 2.150687] tegra30-i2s 70080400.i2s: DMA channels sourced from device 70080000.ahub [ 2.167296] tegra-snd-rt5640 sound: rt5640-aif1 <-> 70080400.i2s mapping ok [ 2.177864] input: NVIDIA Tegra Dalmore Headphones as /devices/soc0/sound/sound/card0/input0 [ 2.187680] TCP: cubic registered [ 2.191021] NET: Registered protocol family 17 [ 2.195489] can: controller area network core (rev 20120528 abi 9) [ 2.201739] NET: Registered protocol family 29 [ 2.206200] can: raw protocol (rev 20120528) [ 2.210484] can: broadcast manager protocol (rev 20120528 t) [ 2.216162] can: netlink gateway (rev 20130117) max_hops=1 [ 2.222055] Key type dns_resolver registered [ 2.226948] ThumbEE CPU extension supported. [ 2.231243] Registering SWP/SWPB emulation handler [ 2.238199] usb1_vbus: supplied by vdd-sys-5v0 [ 2.243274] usb2_vbus: supplied by vdd-sys-5v0 [ 2.248466] vdd_hdmi_5v0: supplied by vdd-sys-5v0 [ 2.254851] VDD_5V0_HDMI_CON: supplied by vdd-sys-5v0 [ 2.265213] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 2.271874] [drm] No driver support for vblank timestamp query. [ 2.336759] Console: switching to colour frame buffer device 240x75 [ 2.364143] host1x drm: fb0: frame buffer device [ 2.368852] host1x drm: registered panic notifier [ 2.388197] [drm] Initialized tegra 0.0.0 20120330 on minor 0 [ 2.394812] platform 7d008000.usb: Driver tegra-ehci requests probe deferral [ 2.403616] tegra-ehci 7d008000.usb: EHCI Host Controller [ 2.409046] tegra-ehci 7d008000.usb: new USB bus registered, assigned bus number 1 [ 2.416926] tegra-ehci 7d008000.usb: irq 339, io mem 0x7d008000 [ 2.428179] tegra-ehci 7d008000.usb: USB 2.0 started, EHCI 1.10 [ 2.435170] hub 1-0:1.0: USB hub found [ 2.439014] hub 1-0:1.0: 1 port detected [ 2.444824] input: gpio-keys as /devices/soc0/gpio-keys/input/input1 [ 2.452538] palmas-rtc 7000d000.i2c:tps65913@58:rtc: setting system clock to 2000-06-25 21:12:15 UTC (961967535) [ 2.473962] vdd_cam_1v8_reg: disabling [ 2.477861] vdd_hdmi_5v0: disabling [ 2.481384] usb1_vbus: disabling [ 2.484662] dvdd_ts: disabling [ 2.489413] ALSA device list: [ 2.492382] #0: NVIDIA Tegra Dalmore [ 2.497542] EXT4-fs (mmcblk0p1): mounting ext3 file system using the ext4 subsystem [ 2.528585] EXT4-fs (mmcblk0p1): recovery complete [ 2.533401] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null) [ 2.541524] VFS: Mounted root (ext3 filesystem) on device 179:1. [ 2.552311] devtmpfs: mounted [ 2.555917] Freeing unused kernel memory: 772K (c0c51000 - c0d12000) bash: cannot set terminal process group (-1): Inappropriate ioctl for device bash: no job control in this shell root@(none):/# [ 2.753262] usb 1-1: new high-speed USB device number 2 using tegra-ehci