WhyCan Forum(哇酷开发者社区)

有个产品要送检-40度低温运行，低温启动。不知道V3S扛得住不？
有哪位兄弟V3S做过-40度运行测试啊？

今天在调试USB 网卡（rtl8152b）,直接插入USB网卡后，驱动正常插上网线正常通信，可以PING通路由器，也可以PING 外网；
但是中断加了个USB HUB后奇怪的事情发生了，网卡驱动貌似加载成功了，LSUSB也正常，ifconfig up 网卡也正常，手动分配IP也正常；
eth0      Link encap:Ethernet  HWaddr 00:E0:4C:36:93:11 
          inet addr:192.168.31.123  Bcast:192.168.31.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

但是，就是PING不通路由器；
各位兄台有遇到此类问题不！

昨天收了，nano 发现SPI flas不是华邦W25Q128，是XT25Q128(国产芯片)。uboot 报错，内核启动失败；
最近W25Q128芯片涨价，所以发货时都使用XT的替换了
报FLASH不识别，ID为0b,40,18
修改uboot
u-boot/drivers/mtd/spi/u-boot/drivers/mtd/spi/spi_flash_ids.c

{"w25q128bv",       INFO(0xef4018, 0x0,    64 * 1024,   256, RD_FULL | WR_QPP | SECT_4K) },
+{"xt25q128",       INFO(0x0b4018, 0x0,    64 * 1024,   256, RD_FULL | WR_QPP | SECT_4K) },

修改内核源码下的 ./drivers/mtd/spi/spi-nor.c
- { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
+{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, 0) },
+{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, 0) },

重新编译下载OK；

荔枝派F1C100S，我启动好像是正常的，OTG功能，USB插入电脑有反映WIN可以驱动加载，但是HOST功能一直不行
我插入U盘、USB网卡都没反映，lsus，出来一直具返回一行“Bus 001 Device 001: ID 1d6b:0002”；
我看PE2，插入电脑高电压，插U盘是低电压，理论是对的
以下为启动代码 ：

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.15.0-next-20180202-licheepi-nano (f1c200s@ubuntu) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #15 Sat Apr 18 13:40:27 CST 2020
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: Lichee Pi Nano
[    0.000000] Memory policy: Data cache writeback
[    0.000000] random: fast init done
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 8128
[    0.000000] Kernel command line: console=ttyS0,115200 panic=5 rootwait root=/dev/mtdblock3 rw rootfstype=jffs2
[    0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Memory: 24780K/32768K available (4096K kernel code, 214K rwdata, 944K rodata, 1024K init, 217K bss, 7988K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xc2800000 - 0xff800000   ( 976 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc2000000   (  32 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0x(ptrval) - 0x(ptrval)   (5088 kB)
[    0.000000]       .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
[    0.000000]       .data : 0x(ptrval) - 0x(ptrval)   ( 215 kB)
[    0.000000]        .bss : 0x(ptrval) - 0x(ptrval)   ( 218 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000047] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000110] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000625] Console: colour dummy device 80x30
[    0.000709] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[    0.070230] pid_max: default: 32768 minimum: 301
[    0.070671] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070712] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.072084] CPU: Testing write buffer coherency: ok
[    0.073731] Setting up static identity map for 0x80100000 - 0x80100058
[    0.076226] devtmpfs: initialized
[    0.082180] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.082238] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.082516] pinctrl core: initialized pinctrl subsystem
[    0.084535] NET: Registered protocol family 16
[    0.085793] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.087507] cpuidle: using governor menu
[    0.106809] SCSI subsystem initialized
[    0.107153] usbcore: registered new interface driver usbfs
[    0.107300] usbcore: registered new interface driver hub
[    0.107473] usbcore: registered new device driver usb
[    0.107904] pps_core: LinuxPPS API ver. 1 registered
[    0.107931] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.107996] PTP clock support registered
[    0.109464] clocksource: Switched to clocksource timer
[    0.136044] NET: Registered protocol family 2
[    0.137485] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    0.137559] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.137620] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.137670] TCP: Hash tables configured (established 1024 bind 1024)
[    0.137927] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.137985] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.138471] NET: Registered protocol family 1
[    0.138921] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.140906] Initialise system trusted keyrings
[    0.141498] workingset: timestamp_bits=30 max_order=13 bucket_order=0
[    0.155708] jffs2: version 2.2. (NAND) ? 2001-2006 Red Hat, Inc.
[    0.169944] Key type asymmetric registered
[    0.169987] Asymmetric key parser 'x509' registered
[    0.170209] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.170243] io scheduler noop registered
[    0.170261] io scheduler deadline registered
[    0.171030] io scheduler cfq registered (default)
[    0.171064] io scheduler mq-deadline registered
[    0.171083] io scheduler kyber registered
[    0.183856] suniv-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.351846] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.358423] console [ttyS0] disabled
[    0.378673] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 22, base_baud = 6250000) is a 16550A
[    0.813852] console [ttyS0] enabled
[    0.819374] SCSI Media Changer driver v0.25
[    0.827051] m25p80 spi0.0: found xt25q128, expected w25q128
[    0.832783] m25p80 spi0.0: xt25q128 (16384 Kbytes)
[    0.837632] 4 ofpart partitions found on MTD device spi0.0
[    0.843181] Creating 4 MTD partitions on "spi0.0":
[    0.847985] 0x000000000000-0x000000070000 : "u-boot"
[    0.855605] 0x000000070000-0x000000080000 : "dtb"
[    0.862883] 0x000000080000-0x000000380000 : "kernel"
[    0.870452] 0x000000380000-0x000001000000 : "rootfs"
[    0.878311] PPP generic driver version 2.4.2
[    0.883229] PPP BSD Compression module registered
[    0.887943] PPP Deflate Compression module registered
[    0.893119] PPP MPPE Compression module registered
[    0.897908] NET: Registered protocol family 24
[    0.902460] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256).
[    0.909552] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.916064] ehci-platform: EHCI generic platform driver
[    0.921596] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.927816] ohci-platform: OHCI generic platform driver
[    0.933474] usbcore: registered new interface driver usb-storage
[    0.940465] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
[    0.952269] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[    0.958061] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[    0.968017] hub 1-0:1.0: USB hub found
[    0.972043] hub 1-0:1.0: 1 port detected
[    0.978324] using random self ethernet address
[    0.982929] using random host ethernet address
[    0.989174] usb0: HOST MAC 2a:74:ae:fb:3b:fa
[    0.993712] usb0: MAC 2a:7e:20:87:c3:39
[    0.997650] g_cdc gadget: CDC Composite Gadget, version: King Kamehameha Day 2008
[    1.005218] g_cdc gadget: g_cdc ready
[    1.009217] i2c /dev entries driver
[    1.014961] usbcore: registered new interface driver usbhid
[    1.020651] usbhid: USB HID core driver
[    1.025404] NET: Registered protocol family 17
[    1.030069] Key type dns_resolver registered
[    1.036290] Loading compiled-in X.509 certificates
[    1.048269] vcc3v3: disabling
[    1.147018] random: crng init done
[    2.444995] VFS: Mounted root (jffs2 filesystem) on device 31:3.
[    2.452735] devtmpfs: mounted
[    2.460244] Freeing unused kernel memory: 1024K
Starting logging: OK
Initializing random number generator... done.
Starting network: OK