我为beaglebone black构建了uboot，Linux内核和根文件系统。我有用于商务USB键盘的Logitech K120。在内核的menuconfig中，我选择了Logitech键盘驱动程序，usb驱动程序，usb键盘驱动程序，musb。在DTS文件中，我描述了USB。我的bbb通过com端口与PC连接。开启bbb键盘后无电，modprobe musb后，usbkbd键盘也无电。 ifconfig和lsusb什么也没显示。
请帮我解决这个问题。我找不到有关如何强制USB工作的信息。
开始日志：
Starting kernel ...
[ 0.000000][ T0] Booting Linux on physical CPU 0x0
[ 0.000000][ T0] Linux version 5.1.8 (bogdan@bogdan-VirtualBox) (gcc version 9.1.0 (GCC)) #1 SMP Mon Jul 15 13:13:24 MSK 2019
[ 0.000000][ T0] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000][ T0] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000][ T0] OF: fdt: Machine model: TI AM335x EVM
[ 0.000000][ T0] Memory policy: Data cache writeback
[ 0.000000][ T0] efi: Getting EFI parameters from FDT:
[ 0.000000][ T0] efi: UEFI not found.
[ 0.000000][ T0] cma: Reserved 64 MiB at 0x9c000000
[ 0.000000][ T0] CPU: All CPU(s) started in SVC mode.
[ 0.000000][ T0] AM335X ES2.1 (sgx neon)
[ 0.000000][ T0] random: get_random_bytes called from start_kernel+0x9c/0x494 with crng_init=0
[ 0.000000][ T0] percpu: Embedded 17 pages/cpu s39884 r8192 d21556 u69632
[ 0.000000][ T0] Built 1 zonelists, mobility grouping on. Total pages: 130048
[ 0.000000][ T0] Kernel command line: console=ttyS0,115200 video=HDMI-A-1:720x480@60 rdinit=/sbin/init
[ 0.000000][ T0] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000][ T0] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000][ T0] Memory: 423092K/524288K available (9216K kernel code, 636K rwdata, 2836K rodata, 1024K init, 558K bss, 35660K reserved, 65536K cma-reserved, 0K highmem)
[ 0.000000][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000][ T0] rcu: Hierarchical RCU implementation.
[ 0.000000][ T0] rcu: RCU event tracing is enabled.
[ 0.000000][ T0] rcu: RCU restricting CPUs from NR_CPUS=16 to nr_cpu_ids=1.
[ 0.000000][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000][ T0] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000][ T0] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 interrupts
[ 0.000000][ T0] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000016][ T0] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000037][ T0] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000048][ T0] OMAP clocksource: timer1 at 24000000 Hz
[ 0.001427][ T0] timer_probe: no matching timers found
[ 0.001644][ T0] Console: colour dummy device 80x30
[ 0.001709][ T0] Calibrating delay loop... 996.14 BogoMIPS (lpj=4980736)
[ 0.089070][ T0] pid_max: default: 32768 minimum: 301
[ 0.089353][ T0] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.089369][ T0] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.089993][ T0] *** VALIDATE proc ***
[ 0.090138][ T0] *** VALIDATE cgroup1 ***
[ 0.090152][ T0] *** VALIDATE cgroup2 ***
[ 0.090167][ T0] CPU: Testing write buffer coherency: ok
[ 0.090220][ T0] CPU0: Spectre v2: using BPIALL workaround
[ 0.090581][ T1] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[ 0.091193][ T1] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.091780][ T1] rcu: Hierarchical SRCU implementation.
[ 0.096687][ T1] EFI services will not be available.
[ 0.097010][ T1] smp: Bringing up secondary CPUs ...
[ 0.097025][ T1] smp: Brought up 1 node, 1 CPU
[ 0.097036][ T1] SMP: Total of 1 processors activated (996.14 BogoMIPS).
[ 0.097045][ T1] CPU: All CPU(s) started in SVC mode.
[ 0.098427][ T1] devtmpfs: initialized
[ 0.109930][ T1] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.110205][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.110235][ T1] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 0.114156][ T1] pinctrl core: initialized pinctrl subsystem
[ 0.115553][ T1] DMI not present or invalid.
[ 0.116036][ T1] NET: Registered protocol family 16
[ 0.118385][ T1] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.147405][ T1] l3-aon-clkctrl:0000:0: failed to disable
[ 0.188360][ T1] cpuidle: using governor menu
[ 0.205253][ T1] No ATAGs?
[ 0.205265][ T1] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.207237][ T1] Serial: AMBA PL011 UART driver
[ 0.221994][ T1] edma 49000000.edma: TI EDMA DMA engine driver
[ 0.223445][ T1] v1_8d: supplied by vbat
[ 0.223765][ T1] v3_3d: supplied by vbat
[ 0.227477][ T1] SCSI subsystem initialized
[ 0.228182][ T1] usbcore: registered new interface driver usbfs
[ 0.228240][ T1] usbcore: registered new interface driver hub
[ 0.228299][ T1] usbcore: registered new device driver usb
[ 0.229364][ T1] pps_core: LinuxPPS API ver. 1 registered
[ 0.229378][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
[ 0.229401][ T1] PTP clock support registered
[ 0.229647][ T1] EDAC MC: Ver: 3.0.0
[ 0.231669][ T1] clocksource: Switched to clocksource timer1
[ 0.281108][ T1] NET: Registered protocol family 2
[ 0.281881][ T1] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[ 0.281914][ T1] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.281957][ T1] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.282016][ T1] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.282125][ T1] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 0.282150][ T1] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 0.282293][ T1] NET: Registered protocol family 1
[ 0.282960][ T1] Trying to unpack rootfs image as initramfs...
[ 1.359732][ T1] Freeing initrd memory: 16196K
[ 1.360447][ T1] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 1.362721][ T1] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 1.368986][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 1.369197][ T1] ntfs: driver 2.1.32 [Flags: R/O].
[ 1.512028][ T48] alg: No test for lzo-rle (lzo-rle-generic)
[ 1.516808][ T50] alg: No test for lzo-rle (lzo-rle-scomp)
[ 1.521405][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248)
[ 1.521430][ T1] io scheduler mq-deadline registered
[ 1.521439][ T1] io scheduler kyber registered
[ 1.526645][ T1] OMAP GPIO hardware version 0.1
[ 1.536097][ T1] ti-sysc 48042000.target-module: sysc_flags 00000222 != 00000022
[ 1.536787][ T1] ti-sysc 48044000.target-module: sysc_flags 00000222 != 00000022
[ 1.537443][ T1] ti-sysc 48046000.target-module: sysc_flags 00000222 != 00000022
[ 1.538074][ T1] ti-sysc 48048000.target-module: sysc_flags 00000222 != 00000022
[ 1.538737][ T1] ti-sysc 4804a000.target-module: sysc_flags 00000222 != 00000022
[ 1.549178][ T1] ti-sysc 4830e000.target-module: idlemodes 00000087 != 00000007
[ 1.550658][ T1] ti-sysc 4a101200.target-module: rev_offs 00001200 != 00000000
[ 1.550679][ T1] ti-sysc 4a101200.target-module: sysc_offs 00001208 != 00000008
[ 1.550690][ T1] ti-sysc 4a101200.target-module: syss_offs 00001204 != 00000004
[ 1.579825][ T1] pinctrl-single 44e10800.pinmux: 142 pins, size 568
[ 1.581545][ T1] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 1.633898][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 1.637572][ T1] printk: console [ttyS0] disabled
[ 1.637649][ T1] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 31, base_baud = 3000000) is a 8250
[ 2.340944][ T1] printk: console [ttyS0] enabled
[ 2.347396][ T1] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 38, base_baud = 3000000) is a 8250
[ 2.358850][ T1] STMicroelectronics ASC driver initialized
[ 2.366891][ T1] omap_rng 48310000.rng: Random Number Generator ver. 20
[ 2.377967][ T52] random: fast init done
[ 2.382264][ T52] random: crng init done
[ 2.396522][ T1] brd: module loaded
[ 2.407991][ T1] loop: module loaded
[ 2.412166][ T1] KGDB: Registered I/O driver kgdbts
[ 2.417349][ T1] kgdbts:RUN plant and detach test
Entering kdb (current=0xdb0a4000, pid 1) on processor 0 due to Keyboard Entry
[0]kdb> [ 2.430389][ T1] kgdbts:RUN sw breakpoint test
[ 2.435355][ T1] kgdbts:RUN bad memory access test
[ 2.440488][ T1] kgdbts:RUN singlestep test 1000 iterations
[ 2.446758][ T1] kgdbts:RUN singlestep [0/1000]
[ 2.488464][ T1] kgdbts:RUN singlestep [100/1000]
[ 2.530352][ T1] kgdbts:RUN singlestep [200/1000]
[ 2.572316][ T1] kgdbts:RUN singlestep [300/1000]
[ 2.614224][ T1] kgdbts:RUN singlestep [400/1000]
[ 2.656139][ T1] kgdbts:RUN singlestep [500/1000]
[ 2.697931][ T1] kgdbts:RUN singlestep [600/1000]
[ 2.739772][ T1] kgdbts:RUN singlestep [700/1000]
[ 2.781700][ T1] kgdbts:RUN singlestep [800/1000]
[ 2.823481][ T1] kgdbts:RUN singlestep [900/1000]
[ 2.865024][ T1] kgdbts:RUN do_fork for 100 breakpoints
[ 2.877141][ T1] libphy: Fixed MDIO Bus: probed
[ 2.883159][ T1] CAN device driver interface
[ 2.961750][ T1] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
[ 2.970166][ T1] libphy: 4a101000.mdio: probed
[ 2.981162][ T1] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
[ 2.991311][ T1] cpsw 4a100000.ethernet: Detected MACID = ec:24:b8:6f:b8:8c
[ 2.998812][ T1] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
[ 3.005955][ T1] cpsw 4a100000.ethernet: ALE Table size 1024
[ 3.013254][ T1] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver
[ 3.021466][ T1] usbcore: registered new interface driver pegasus
[ 3.027974][ T1] usbcore: registered new interface driver asix
[ 3.034151][ T1] usbcore: registered new interface driver ax88179_178a
[ 3.041008][ T1] usbcore: registered new interface driver cdc_ether
[ 3.047627][ T1] usbcore: registered new interface driver smsc75xx
[ 3.054159][ T1] usbcore: registered new interface driver smsc95xx
[ 3.060652][ T1] usbcore: registered new interface driver net1080
[ 3.067082][ T1] usbcore: registered new interface driver cdc_subset
[ 3.073772][ T1] usbcore: registered new interface driver zaurus
[ 3.080122][ T1] usbcore: registered new interface driver cdc_ncm
[ 3.089015][ T1] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.096431][ T1] ehci-platform: EHCI generic platform driver
[ 3.102796][ T1] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 3.109725][ T1] ohci-platform: OHCI generic platform driver
[ 3.116724][ T1] usbcore: registered new interface driver usb-storage
[ 3.123562][ T1] usbcore: registered new interface driver ldusb
[ 3.133821][ T1] i2c /dev entries driver
[ 3.143913][ T1] sdhci: Secure Digital Host Controller Interface driver
[ 3.150834][ T1] sdhci: Copyright(c) Pierre Ossman
[ 3.158322][ T1] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 3.167929][ T1] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 3.174082][ T1] Synopsys Designware Multimedia Card Interface Driver
[ 3.181809][ T1] sdhci-pltfm: SDHCI platform and OF driver helper
[ 3.189526][ T1] ledtrig-cpu: registered to indicate activity on CPUs
[ 3.198143][ T1] usbcore: registered new interface driver usbhid
[ 3.204517][ T1] usbhid: USB HID core driver
[ 3.210979][ T1] NET: Registered protocol family 10
[ 3.217818][ T1] Segment Routing with IPv6
[ 3.222385][ T1] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 3.229765][ T1] NET: Registered protocol family 17
[ 3.235013][ T1] can: controller area network core (rev 20170425 abi 9)
[ 3.242044][ T1] NET: Registered protocol family 29
[ 3.247208][ T1] can: raw protocol (rev 20170425)
[ 3.252218][ T1] can: broadcast manager protocol (rev 20170425 t)
[ 3.258605][ T1] can: netlink gateway (rev 20170425) max_hops=1
[ 3.265326][ T1] Key type dns_resolver registered
[ 3.270442][ T1] ThumbEE CPU extension supported.
[ 3.275502][ T1] Registering SWP/SWPB emulation handler
[ 3.281016][ T1] omap_voltage_late_init: Voltage driver support not added
[ 3.300163][ T14] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 3.306196][ T14] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 3.314715][ T14] nand: No NAND device found
[ 3.351912][ T14] tps65910 0-002d: No interrupt support, no core IRQ
[ 3.359511][ T14] tps65910-pmic: probe of tps65910-pmic failed with error -121
[ 3.367601][ T14] tps65910-rtc: probe of tps65910-rtc failed with error -121
[ 3.375291][ T14] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.384462][ T14] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[ 3.391209][ T14] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 3.518154][ T14] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 3.527692][ T14] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 3.534995][ T14] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 3.545955][ T14] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 3.555496][ T14] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 3.562090][ T14] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 3.573596][ T1] input: volume_keys0 as /devices/platform/volume_keys0/input/input0
[ 3.582555][ T1] hctosys: unable to open rtc device (rtc0)
[ 3.589131][ T1] v1_8d: disabling
[ 3.592855][ T1] v3_3d: disabling
[ 3.598376][ T14] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 3.607963][ T14] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 3.615807][ T1] Freeing unused kernel memory: 1024K
[ 3.621871][ T14] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 3.642195][ T1] Run /sbin/init as init process
Please press Enter to activate this console.
dts：
usb: usb@47400000 {
compatible = "ti,am33xx-usb", "my,usbkbd";
reg = <0x47400000 0x1000>;
ranges;
#address-cells = <1>;
#size-cells = <1>;
ti,hwmods = "usb_otg_hs";
status = "okay";
usb_ctrl_mod: control@44e10620 {
compatible = "ti,am335x-usb-ctrl-module";
reg = <0x44e10620 0x10
0x44e10648 0x4>;
reg-names = "phy_ctrl", "wakeup";
status = "okay";
};
usb0_phy: usb-phy@47401300 {
compatible = "ti,am335x-usb-phy";
reg = <0x47401300 0x100>;
reg-names = "phy";
status = "okay";
ti,ctrl_mod = <&usb_ctrl_mod>;
#phy-cells = <0>;
};
usb0: usb@47401000 {
compatible = "ti,musb-am33xx";
status = "okay";
reg = <0x47401400 0x400
0x47401000 0x200>;
reg-names = "mc", "control";
interrupts = <18>;
interrupt-names = "mc";
dr_mode = "host";
mentor,multipoint = <1>;
mentor,num-eps = <16>;
mentor,ram-bits = <12>;
mentor,power = <500>;
phys = <&usb0_phy>;
};
usb1_phy: usb-phy@47401b00 {
compatible = "ti,am335x-usb-phy";
reg = <0x47401b00 0x100>;
reg-names = "phy";
status = "okay";
ti,ctrl_mod = <&usb_ctrl_mod>;
#phy-cells = <0>;
};
usb1: usb@47401800 {
compatible = "ti,musb-am33xx";
status = "okay";
reg = <0x47401c00 0x400
0x47401800 0x200>;
reg-names = "mc", "control";
interrupts = <19>;
interrupt-names = "mc";
dr_mode = "host";
mentor,multipoint = <1>;
mentor,num-eps = <16>;
mentor,ram-bits = <12>;
mentor,power = <500>;
phys = <&usb1_phy>;
};
};
在devmem之后：
/ # devmem 0x47401c60 b
[ 54.241129][ T117] Unhandled fault: external abort on non-linefetch (0x1018) at 0xb6fcfc60
[ 54.249546][ T117] pgd = e8d46fe1
[ 54.252962][ T117] [b6fcfc60] *pgd=9b773831, *pte=47401383, *ppte=47401a33
Bus error
/ # devmem 0x47401460 b
[ 60.402024][ T124] Unhandled fault: external abort on non-linefetch (0x1018) at 0xb6fb9460
[ 60.410441][ T124] pgd = e8d46fe1
[ 60.413855][ T124] [b6fb9460] *pgd=9b786831, *pte=47401383, *ppte=47401a33
Bus error
我的RFS中有什么： Root Filesystem
