~ # dmesg Booting Linux on physical CPU 0x0 Linux version 4.9.37 (lpcheng@osdrv) (gcc version 6.3.0 (HC&C V100R002C00B021_20180917) ) #5 SMP Mon Nov 12 19:35:04 HKT 2018 CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d CPU: div instructions available: patching division code CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache OF: fdt:Machine model: Hisilicon Hi3519AV100 SMP Board cma: dma_contiguous_reserve(limit ffffffff) cma: dma_contiguous_reserve: reserving 16 MiB for global area cma: cma_declare_contiguous(size 0x01000000, base 0x00000000, limit 0xffffffff alignment 0x00000000) cma: Reserved 16 MiB at 0x31000000 Memory policy: Data cache writealloc On node 0 totalpages: 65536 free_area_init_node: node 0, pgdat c092d580, node_mem_map cedf1000 Normal zone: 512 pages used for memmap Normal zone: 0 pages reserved Normal zone: 65536 pages, LIFO batch:15 percpu: Embedded 13 pages/cpu @cedc6000 s22028 r8192 d23028 u53248 pcpu-alloc: s22028 r8192 d23028 u53248 alloc=13*4096 pcpu-alloc: [0] 0 [0] 1 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024 Kernel command line: mem=256M console=ttyAMA0,115200 clk_ignore_unused root=/dev/mtdblock2 rw rootfstype=yaffs2 mtdparts=hinand:1M(boot),4M(kernel),60M(rootfs) nosmp PID hash table entries: 1024 (order: 0, 4096 bytes) Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Memory: 234544K/262144K available (5120K kernel code, 184K rwdata, 1368K rodata, 1024K init, 321K bss, 11216K reserved, 16384K cma-reserved, 0K highmem) Virtual kernel memory layout: vector : 0xffff0000 - 0xffff1000 ( 4 kB) fixmap : 0xffc00000 - 0xfff00000 (3072 kB) vmalloc : 0xd0800000 - 0xff800000 ( 752 MB) lowmem : 0xc0000000 - 0xd0000000 ( 256 MB) pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) modules : 0xbf000000 - 0xbfe00000 ( 14 MB) .text : 0xc0008000 - 0xc0600000 (6112 kB) .init : 0xc0800000 - 0xc0900000 (1024 kB) .data : 0xc0900000 - 0xc092e180 ( 185 kB) .bss : 0xc0930000 - 0xc098072c ( 322 kB) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 Hierarchical RCU implementation. Build-time adjustment of leaf fanout to 32. RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2. RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2 NR_IRQS:16 nr_irqs:16 16 arm_arch_timer: Architected cp15 timer(s) running at 24.00MHz (phys). clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns Switching to timer-based delay loop, resolution 41ns clocksource: hisp804: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns Console: colour dummy device 80x30 Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=120000) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) CPU: Testing write buffer coherency: ok CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 Setting up static identity map for 0x22100000 - 0x22100058 Brought up 1 CPUs SMP: Total of 1 processors activated (48.00 BogoMIPS). CPU: All CPU(s) started in SVC mode. devtmpfs: initialized VFP support v0.3: implementor 41 architecture 3 part 40 variant 3 rev 4 clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302231375000 ns futex hash table entries: 512 (order: 3, 32768 bytes) NET: Registered protocol family 16 cma: cma_alloc(cma c095e7a4, count 64, align 6) cma: cma_alloc(): returned cefd1000 DMA: preallocated 256 KiB pool for atomic coherent allocations Serial: AMBA PL011 UART driver 4540000.uart: ttyAMA0 at MMIO 0x4540000 (irq = 21, base_baud = 0) is a PL011 rev2 console [ttyAMA0] enabled vgaarb: loaded SCSI subsystem initialized ssp-pl022 4570000.spi: ARM PL022 driver, device ID: 0x00800022 ssp-pl022 4570000.spi: mapped registers from 0x04570000 to d0855000 ssp-pl022 4571000.spi: ARM PL022 driver, device ID: 0x00800022 ssp-pl022 4571000.spi: mapped registers from 0x04571000 to d0857000 ssp-pl022 4572000.spi: ARM PL022 driver, device ID: 0x00800022 ssp-pl022 4572000.spi: mapped registers from 0x04572000 to d0859000 ssp-pl022 4573000.spi: ARM PL022 driver, device ID: 0x00800022 ssp-pl022 4573000.spi: mapped registers from 0x04573000 to d085b000 ssp-pl022 4574000.spi: ARM PL022 driver, device ID: 0x00800022 ssp-pl022 4574000.spi: mapped registers from 0x04574000 to d085d000 usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb Linux video capture interface: v2.00 clocksource: Switched to clocksource hisp804 NET: Registered protocol family 2 TCP established hash table entries: 2048 (order: 1, 8192 bytes) TCP bind hash table entries: 2048 (order: 2, 16384 bytes) TCP: Hash tables configured (established 2048 bind 2048) UDP hash table entries: 256 (order: 1, 8192 bytes) UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. PCI: CLS 0 bytes, default 64 workingset: timestamp_bits=30 max_order=16 bucket_order=0 NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc. fuse init (API version 7.26) yaffs: yaffs Installing. Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) pl061_gpio 45f0000.gpio_chip: PL061 GPIO chip @0x045f0000 registered pl061_gpio 45f1000.gpio_chip: PL061 GPIO chip @0x045f1000 registered pl061_gpio 45f2000.gpio_chip: PL061 GPIO chip @0x045f2000 registered pl061_gpio 45f3000.gpio_chip: PL061 GPIO chip @0x045f3000 registered pl061_gpio 45f4000.gpio_chip: PL061 GPIO chip @0x045f4000 registered pl061_gpio 45f5000.gpio_chip: PL061 GPIO chip @0x045f5000 registered pl061_gpio 45f6000.gpio_chip: PL061 GPIO chip @0x045f6000 registered pl061_gpio 45f7000.gpio_chip: PL061 GPIO chip @0x045f7000 registered pl061_gpio 45f8000.gpio_chip: PL061 GPIO chip @0x045f8000 registered pl061_gpio 45f9000.gpio_chip: PL061 GPIO chip @0x045f9000 registered pl061_gpio 45fa000.gpio_chip: PL061 GPIO chip @0x045fa000 registered pl061_gpio 45fb000.gpio_chip: PL061 GPIO chip @0x045fb000 registered pl061_gpio 45fc000.gpio_chip: PL061 GPIO chip @0x045fc000 registered pl061_gpio 45fd000.gpio_chip: PL061 GPIO chip @0x045fd000 registered pl061_gpio 45fe000.gpio_chip: PL061 GPIO chip @0x045fe000 registered brd: module loaded cma: cma_alloc(cma c095e7a4, count 2, align 1) cma: cma_alloc(): returned cefd1800 hisi-sfc hisi_spi_nor.0: SPI Nor ID Table Version 1.2 hisi-sfc hisi_spi_nor.0: unrecognized Manufacturer ID hisi-sfc hisi_spi_nor.0: spi nor register fail! hisi-sfc: probe of hisi_spi_nor.0 failed with error -2 SPI Nand ID Table Version 2.7 SPI Nand(cs 0) ID: 0xc2 0x90 nand: device found, Manufacturer ID: 0xc2, Chip ID: 0x90 nand: Macronix MX35UF1G14AC nand: 128MiB, SLC, page size: 2048 Nand(Auto): OOB:64B ECC:4bit/512 nand: ECC provided by Flash Memory Controller 3 cmdlinepart partitions found on MTD device hinand Creating 3 MTD partitions on "hinand": 0x000000000000-0x000000100000 : "boot" 0x000000100000-0x000000500000 : "kernel" 0x000000500000-0x000004100000 : "rootfs" libphy: hisi_gemac_mii_bus: probed libphy: Fixed MDIO Bus: probed hi_gmac_v200 40e0000.ethernet: invalid resource hi_gmac_v200 40e0000.ethernet (unnamed net_device) (uninitialized): using random MAC address 7a:22:00:0d:bc:d9 attached PHY 1 to driver Generic PHY, PHY_ID=0x1cc916 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1880 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1900 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1980 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1a00 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1a80 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1b00 cma: cma_alloc(cma c095e7a4, count 4, align 2) cma: cma_alloc(): returned cefd1b80 cma: cma_alloc(cma c095e7a4, count 43, align 6) cma: cma_alloc(): returned cefd2000 Higmac dma_sg_phy: 0x31080000 ETH: rgmii, phy_addr=1 usbcore: registered new interface driver r8152 xhci-hcd 4120000.xhci_1: xHCI Host Controller xhci-hcd 4120000.xhci_1: new USB bus registered, assigned bus number 1 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1840 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1860 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1c00 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1c20 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1c40 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1c60 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1c80 xhci-hcd 4120000.xhci_1: hcc params 0x0220fe6d hci version 0x110 quirks 0x00010010 xhci-hcd 4120000.xhci_1: irq 45, io mem 0x04120000 hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected xhci-hcd 4120000.xhci_1: xHCI Host Controller xhci-hcd 4120000.xhci_1: new USB bus registered, assigned bus number 2 usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. hub 2-0:1.0: USB hub found hub 2-0:1.0: config failed, hub doesn't have any ports! (err -19) usbcore: registered new interface driver usb-storage mousedev: PS/2 mouse device common for all mice usbcore: registered new interface driver xpad hibvt_rtc 4550000.rtc: rtc core: registered 4550000.rtc as rtc0 hibvt_rtc 4550000.rtc: RTC driver for hibvt enabled i2c /dev entries driver hibvt-i2c 4560000.i2c: hibvt-i2c0@100000hz registered hibvt-i2c 4561000.i2c: hibvt-i2c1@100000hz registered hibvt-i2c 4562000.i2c: hibvt-i2c2@100000hz registered hibvt-i2c 4563000.i2c: hibvt-i2c3@100000hz registered hibvt-i2c 4564000.i2c: hibvt-i2c4@100000hz registered hibvt-i2c 4565000.i2c: hibvt-i2c5@100000hz registered hibvt-i2c 4566000.i2c: hibvt-i2c6@100000hz registered hibvt-i2c 4567000.i2c: hibvt-i2c7@100000hz registered cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1ca0 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1cc0 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1ce0 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1d00 hibvt-i2c 4568000.i2c: hibvt-i2c8@100000hz registered hibvt-i2c 4569000.i2c: hibvt-i2c9@100000hz registered usbcore: registered new interface driver uvcvideo USB Video Class driver (1.1.1) sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pltfm: SDHCI platform and OF driver helper cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1d20 mmc0: SDHCI controller on 40c0000.SD [40c0000.SD] using ADMA 64-bit in legacy mode cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1d40 mmc1: 3.3V output did not became stable usb 1-1: new high-speed USB device number 2 using xhci-hcd mmc1: SDHCI controller on 40d0000.SD [40d0000.SD] using ADMA 64-bit in legacy mode usbcore: registered new interface driver usbhid usbhid: USB HID core driver hivdmav100 driver inited. NET: Registered protocol family 10 NET: Registered protocol family 17 8021q: 802.1Q VLAN Support v1.8 Key type dns_resolver registered Registering SWP/SWPB emulation handler mmc1: 3.3V output did not became stable hibvt_rtc 4550000.rtc: setting system clock to 1970-01-01 12:55:13 UTC (46513) clk: Not disabling unused clocks uart-pl011 4540000.uart: no DMA platform data yaffs: dev is 32505858 name is "mtdblock2" rw yaffs: passed flags "" yaffs: yaffs: Attempting MTD mount of 31.2,"mtdblock2" yaffs: yaffs_read_super: is_checkpointed 1 VFS: Mounted root (yaffs2 filesystem) on device 31:2. devtmpfs: mounted Freeing unused kernel memory: 1024K (c0800000 - c0900000) cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1d60 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1d80 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1da0 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1dc0 usb-storage 1-1:1.0: USB Mass Storage device detected mmc1: 3.3V output did not became stable cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1de0 usb-storage 1-1:1.0: Quirks match for vid 0525 pid a4a5: 10000 scsi host0: usb-storage 1-1:1.0 mmc1: 3.3V output did not became stable udev[81]: starting version 167 scsi 0:0:0:0: Direct-Access Linux File-Stor Gadget 0409 PQ: 0 ANSI: 2 sd 0:0:0:0: [sda] 186368 512-byte logical blocks: (95.4 MB/91.0 MiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 0f 00 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sd 0:0:0:0: [sda] Attached SCSI removable disk random: fast init done random: crng init done usb 1-1: reset high-speed USB device number 2 using xhci-hcd cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1e00 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1e20 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1e40 cma: cma_alloc(cma c095e7a4, count 1, align 0) cma: cma_alloc(): returned cefd1e60 sda: sda1