Other Parts Discussed in Thread: AM3517, OMAPL138
Hi,
I have a custom board based on an AM3517 processor and running Linux 2.6.37. I am using the USB OTG port in host only mode but I am having trouble with hotplugging a USB mass storage (memory stick) device.
When booting with the USB memory inserted in the host port, the memory will not be mounted. If I remove the USB memory and insert it again it will be mounted and the folders and files can be browsed in the console under /mnt/usb. Also sometimes when removing the USB memory from the host port it will not dismount so the folders and files are still visible in /mnt/usb. This results in a kernel spinlock if a user application is trying to read from a file found in /mnt/usb but the memory is not inserted.
If anyone have any idea of what could be wrong I would appreciate any input on this problem. I am really struggling to understand why the memory is not mounted/dismounted correctly each time.
In /etc/init.d I have a script S10mdev with the following code which is run at boot:
|
#!/bin/sh |
When booting with a USB memory stick inserted in the host I get the following output in the console:
| Boot 1.51 R5 1.1 (Oct 8 2012 - 18:25:04) Booting from nand . . . Starting OS Bootloader... U-Boot 2010.06 (Oct 08 2012 - 18:08:16) R5 1.2 I2C: ready DRAM: 256 MiB NAND: HW ECC selected 1024 MiB Using default environment In: serial Out: serial Err: serial Die ID #63d60001000000000160ae2c1701d017 8 BIT SW ECC selected Hit any key to stop autoboot: 0 Booting from nand ... HW ECC selected NAND read: device 0 offset 0xe0000, size 0x400000 4194304 bytes read: OK 8 BIT SW ECC selected NAND read: device 0 offset 0x4e0000, size 0x1296000 19488768 bytes read: OK ## Booting kernel from Legacy Image at 82000000 ... Image Name: Linux-2.6.37-r5_1.2 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2696892 Bytes = 2.6 MiB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... [ 0.000000] Linux version 2.6.37-r5_1.2 (root@ubuntu9) (gcc version 4.4.6 (crosstool-NG 1.13.2 - buildroot 2011.11) ) #6 Thu Mar 7 15:02:17 CET 2013 [ 0.000000] CPU: ARMv7 Processor [411fc087] revision 7 (ARMv7), cr=10c53c7f [ 0.000000] CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache [ 0.000000] Machine: AM3517 R5CDU [ 0.000000] Reserving 10485760 bytes SDRAM for VRAM [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] AM3517 ES1.1 (l2cache iva sgx neon isp ) [ 0.000000] SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x10000 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 62464 [ 0.000000] Kernel command line: mem=256M ubi.mtd=4,2048 root=/dev/ram0 rw initrd=0x8ed6a000,19032k vram=10M omapfb.vram=0:4M,1:3M,2:3M console=ttyO2,115200n8 r5cdugpio.hw_rev=0 r5cdugpio.boot_pin=0 [ 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: 226MB 20MB = 246MB total [ 0.000000] Memory: 217756k/217756k available, 44388k 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] DMA : 0xffc00000 - 0xffe00000 ( 2 MB) [ 0.000000] vmalloc : 0xd0800000 - 0xf8000000 ( 632 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB) [ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB) [ 0.000000] .init : 0xc0008000 - 0xc0093000 ( 556 kB) [ 0.000000] .text : 0xc0093000 - 0xc0541018 (4793 kB) [ 0.000000] .data : 0xc0542000 - 0xc06f0d60 (1724 kB) [ 0.000000] NR_IRQS:375 [ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz [ 0.000000] clock: set_rate for clock dpll5_ck to rate 120000000 [ 0.000000] clk->set_rate(clk, rate) [ 0.000000] clock: set_rate for clock dpll5_m2_ck to rate 120000000 [ 0.000000] Reprogramming SDRC clock to 332000000 Hz [ 0.000000] clock: set_rate for clock dpll3_m2_ck to rate 332000000 [ 0.000000] clk->set_rate(clk, rate) [ 0.000000] omap3_core_dpll_m2_set_rate [ 0.000000] omap2_clksel_round_rate_div [ 0.000000] omap2_sdrc_get_params [ 0.000000] dpll3_m2_clk rate change failed: -22 [ 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] GPMC revision 5.0 [ 0.000000] Trying to install interrupt handler for IRQ368 [ 0.000000] Trying to install interrupt handler for IRQ369 [ 0.000000] Trying to install interrupt handler for IRQ370 [ 0.000000] Trying to install interrupt handler for IRQ371 [ 0.000000] Trying to install interrupt handler for IRQ372 [ 0.000000] Trying to install interrupt handler for IRQ373 [ 0.000000] Trying to install interrupt handler for IRQ374 [ 0.000000] Trying to install type control for IRQ375 [ 0.000000] Trying to set irq flags for IRQ375 [ 0.000000] OMAP clockevent source: GPTIMER1 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: 3951 kB [ 0.000000] per task-struct memory footprint: 2304 bytes [ 0.000000] Calibrating delay loop... 502.07 BogoMIPS (lpj=1961984) [ 0.000000] pid_max: default: 32768 minimum: 301 [ 0.000000] Security Framework initialized [ 0.000000] Mount-cache hash table entries: 512 [ 0.000000] CPU: Testing write buffer coherency: ok [ 0.000000] devtmpfs: initialized [ 0.000000] regulator: core version 0.5 [ 0.000000] regulator: dummy: [ 0.000000] NET: Registered protocol family 16 [ 0.000000] OMAP GPIO hardware version 2.5 [ 0.000000] OMAP GPIO hardware version 2.5 [ 0.000000] OMAP GPIO hardware version 2.5 [ 0.000000] OMAP GPIO hardware version 2.5 [ 0.000000] OMAP GPIO hardware version 2.5 [ 0.000000] OMAP GPIO hardware version 2.5 [ 0.000000] omap_mux_init: Add partition: #1: core, flags: 0 [ 0.000000] Display initialized successfully [ 0.000000] R5 CDU PWM driver register successfully [ 0.000000] _omap_mux_init_gpio: Multiple gpio paths (2) for gpio126 [ 0.000000] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.000000] OMAP DMA hardware revision 4.0 [ 0.089019] bio: create slab <bio-0> at 0 [ 0.099151] SCSI subsystem initialized [ 0.117980] usbcore: registered new interface driver usbfs [ 0.119873] usbcore: registered new interface driver hub [ 0.121124] usbcore: registered new device driver usb [ 0.127929] omap_device: omap_i2c.1: new worst case activate latency 0: 30517 [ 0.128143] omap_i2c omap_i2c.1: bus 1 rev3.12 at 400 kHz [ 0.139160] regulator: VDCDC1: 1800 mV normal [ 0.141571] regulator: VDCDC2: 3300 mV normal [ 0.143737] regulator: VDCDC3: 1200 mV normal [ 0.145568] regulator: LDO1: 1800 mV normal [ 0.147247] regulator: LDO2: 1800 mV normal [ 0.148925] tps6507x_i2c_probe(): Setting TPS6507X_REG_CHGCONFIG1 to 0x30 [ 0.149536] tps6507x_i2c_probe(): TPS6507X_REG_CHGCONFIG1 = 0x30 [ 0.149749] omap_device: omap_i2c.1: new worst case deactivate latency 0: 30517 [ 0.150177] omap_i2c omap_i2c.2: bus 2 rev3.12 at 400 kHz [ 0.163330] Advanced Linux Sound Architecture Driver Version 1.0.23. [ 0.169036] Switching to clocksource 32k_counter [ 0.356079] musb-hdrc: version 6.0, host, debug=0 [ 0.356658] musb-hdrc musb-hdrc.0: degrade from otg to host-only mode [ 0.356872] musb-hdrc musb-hdrc.0: dma type: dma-cppi41 [ 0.358642] <6>Waiting for PHY clock good... [ 0.374328] musb-hdrc musb-hdrc.0: MUSB HDRC host driver [ 0.376617] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1 [ 0.377777] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 0.377807] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.377838] usb usb1: Product: MUSB HDRC host driver [ 0.377838] usb usb1: Manufacturer: Linux 2.6.37-r5_1.2 musb-hcd [ 0.377868] usb usb1: SerialNumber: musb-hdrc.0 [ 0.386138] hub 1-0:1.0: USB hub found [ 0.386657] hub 1-0:1.0: 1 port detected [ 0.392974] musb-hdrc musb-hdrc.0: USB Host mode controller at d0810000 using DMA, IRQ 71 [ 0.395355] NET: Registered protocol family 2 [ 0.396545] IP route cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.398925] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.399444] TCP bind hash table entries: 8192 (order: 6, 360448 bytes) [ 0.405059] TCP: Hash tables configured (established 8192 bind 8192) [ 0.405212] TCP reno registered [ 0.405242] UDP hash table entries: 128 (order: 1, 12288 bytes) [ 0.405670] UDP-Lite hash table entries: 128 (order: 1, 12288 bytes) [ 0.407073] NET: Registered protocol family 1 [ 0.408630] Trying to unpack rootfs image as initramfs... [ 0.410308] rootfs image is not initramfs (junk in compressed archive); looks like an initrd [ 0.593566] Freeing initrd memory: 19032K [ 0.593597] NetWinder Floating Point Emulator V0.97 (double precision) [ 0.596343] omap_init_opp_table: no hwmod or odev for iva, [9] cannot add OPPs. [ 0.600189] AM3517 Linux PSP version 04.02.00.07 (AM3517R5CDU) [ 0.766693] VFS: Disk quotas dquot_6.5.2 [ 0.766845] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.768981] msgmni has been set to 462 [ 0.776092] io scheduler noop registered [ 0.776123] io scheduler deadline registered [ 0.776336] io scheduler cfq registered (default) [ 0.841308] OMAP DSS rev 2.0 [ 0.841430] omapdss supply vdds_dsi not found, using dummy regulator [ 0.842071] OMAP DISPC rev 3.0 [ 0.842620] OMAP DSI rev 1.0 [ 1.008850] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.021820] omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0 [ 1.024871] omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1 [ 1.026916] omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2 [ 1.824829] console [ttyO2] enabled [ 1.829895] usb 1-1: new high speed USB device using musb-hdrc and address 2 [ 1.840332] omap_uart.3: ttyO3 at MMIO 0x4809e000 (irq = 84) is a OMAP UART3 [ 1.911987] brd: module loaded [ 1.946197] loop: module loaded [ 1.949859] at24 2-0050: 16384 byte 24c128 EEPROM (writable) [ 1.956420] omap_device: omap_i2c.2: new worst case activate latency 0: 122070 [ 1.964721] Read MAC addr from EEPROM: ff:ff:ff:ff:ff:ff [ 1.971984] PWM0 init, clk rate: 13000000Hz [ 1.976593] PWM1 init, clk rate: 13000000Hz [ 1.981048] PWM2 init, clk rate: 13000000Hz [ 1.985595] PWM3 init, clk rate: 13000000Hz [ 1.993865] R5 CDU PWM driver initialized successfully [ 2.003173] R5 CDU LED dirver initialized successfully [ 2.012145] R5 CDU ADC driver initialized successfully [ 2.019561] [GPIO] 13 irq 173 [ 2.023254] [GPIO] 140 irq 300 [ 2.026672] [GPIO] 156 irq 316 [ 2.033966] usb 1-1: New USB device found, idVendor=0781, idProduct=5406 [ 2.041107] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 2.048645] usb 1-1: Product: U3 Cruzer Micro [ 2.053253] usb 1-1: Manufacturer: SanDisk [ 2.057525] usb 1-1: SerialNumber: 0001187062503B8C [ 2.065612] R5 CDU GPIO driver initialized successfully [ 2.074737] R5 fpga spi: clkout2_src_ck=96000000Hz [ 2.079895] R5 fpga spi: sys_clkout2=96000000Hz [ 2.108673] mtdoops: mtd device (mtddev=name/number) must be supplied [ 2.117065] omap2-nand driver initializing [ 2.121917] ONFI flash detected [ 2.125488] ONFI param page 0 valid [ 2.129119] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xd3 (Micron NAND 1GiB 3,3V 8-bit) [ 2.139556] cmdlinepart partition parsing not available [ 2.145019] Creating 5 MTD partitions on "omap2-nand.0": [ 2.150726] 0x000000000000-0x000000080000 : "xloader-nand" [ 2.170043] 0x000000080000-0x0000000e0000 : "uboot-nand" [ 2.184753] 0x0000000e0000-0x0000004e0000 : "linux-nand" [ 2.204956] 0x0000004e0000-0x0000084e0000 : "root-fs-nand" [ 2.288330] 0x0000084e0000-0x000040000000 : "rw-fs-nand" [ 2.778411] UBI: attaching mtd4 to ubi0 [ 2.782623] UBI: physical eraseblock size: 131072 bytes (128 KiB) [ 2.789245] UBI: logical eraseblock size: 126976 bytes [ 2.794982] UBI: smallest flash I/O unit: 2048 [ 2.799865] UBI: VID header offset: 2048 (aligned 2048) [ 2.806213] UBI: data offset: 4096 [ 9.941711] UBI: max. sequence number: 74 [ 9.997283] UBI: attached mtd4 to ubi0 [ 10.001373] UBI: MTD device name: "rw-fs-nand" [ 10.007110] UBI: MTD device size: 891 MiB [ 10.012268] UBI: number of good PEBs: 7129 [ 10.017272] UBI: number of bad PEBs: 0 [ 10.021972] UBI: number of corrupted PEBs: 0 [ 10.026611] UBI: max. allowed volumes: 128 [ 10.031494] UBI: wear-leveling threshold: 4096 [ 10.036468] UBI: number of internal volumes: 1 [ 10.041107] UBI: number of user volumes: 1 [ 10.045837] UBI: available PEBs: 0 [ 10.050445] UBI: total number of reserved PEBs: 7129 [ 10.055694] UBI: number of PEBs reserved for bad PEB handling: 71 [ 10.062133] UBI: max/mean erase counter: 2/1 [ 10.066589] UBI: image sequence number: 388443473 [ 10.072265] UBI: background thread "ubi_bgt0d" started, PID 469 [ 10.130279] davinci_mdio davinci_mdio: davinci mdio revision 1.5 [ 10.136596] davinci_mdio davinci_mdio: detected phy mask fffffffc [ 10.149871] davinci_mdio: probed [ 10.153259] davinci_mdio davinci_mdio: phy[0]: device ffffffff:00, driver unknown [ 10.161193] davinci_mdio davinci_mdio: phy[1]: device ffffffff:01, driver unknown [ 10.170928] vcan: Virtual CAN interface driver [ 10.175628] CAN device driver interface [ 10.179748] TI High End CAN Controller Driver 0.7 [ 10.189270] ti_hecc ti_hecc: device registered (reg_base=d0880000, irq=24) [ 10.199554] Initializing USB Mass Storage driver... [ 10.207275] scsi0 : usb-storage 1-1:1.0 [ 10.218566] usbcore: registered new interface driver usb-storage [ 10.225036] USB Mass Storage support registered. [ 10.231628] usbcore: registered new interface driver usbtest [ 10.242858] mice: PS/2 mouse device common for all mice [ 10.254455] input: gpio-keys as /devices/platform/gpio-keys/input/input0 [ 10.284881] input: TPS6507x Touchscreen as /devices/platform/omap/omap_i2c.1/i2c-1/1-0048/input/input1 [ 10.300720] i2c /dev entries driver [ 10.314941] lm75 1-004b: hwmon0: sensor 'lm75' [ 10.329437] OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec [ 10.335906] omap_device: omap_wdt.-1: new worst case deactivate latency 0: 30517 [ 10.371154] usbcore: registered new interface driver usbhid [ 10.377166] usbhid: USB HID core driver [ 10.387817] usbcore: registered new interface driver snd-usb-audio [ 10.413909] AM3517 R5 CDU SoC init [ 10.420379] 2-0018 supply IOVDD not found, using dummy regulator [ 10.426818] 2-0018 supply DVDD not found, using dummy regulator [ 10.433258] 2-0018 supply AVDD not found, using dummy regulator [ 10.439636] 2-0018 supply DRVDD not found, using dummy regulator [ 10.460876] asoc: tlv320aic3x-hifi <-> omap-mcbsp-dai.1 mapping ok [ 10.481353] R5CDU Sound DAC: sys_clkout1=26000000Hz [ 10.486633] ALSA device list: [ 10.489837] #0: am3517_r5cdu [ 10.493011] oprofile: hardware counters not available [ 10.498352] oprofile: using timer interrupt. [ 10.503540] TCP cubic registered [ 10.507049] Initializing XFRM netlink socket [ 10.511749] NET: Registered protocol family 17 [ 10.516967] NET: Registered protocol family 15 [ 10.521697] can: controller area network core (rev 20090105 abi 8) [ 10.528808] NET: Registered protocol family 29 [ 10.533599] can: raw protocol (rev 20090105) [ 10.538299] can: broadcast manager protocol (rev 20090105 t) [ 10.544403] Registering the dns_resolver key type [ 10.550140] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1 [ 10.572265] ThumbEE CPU extension supported. [ 10.592285] am3517_vdd_data_configure: PMIC info requried to configure vdd_mpu notpopulated.Hence cannot initialize vdd_mpu [ 10.603973] am3517_vdd_data_configure: PMIC info requried to configure vdd_core notpopulated.Hence cannot initialize vdd_core [ 10.615936] omap_voltage_scale_vdd: No voltage scale API registered for vdd_mpu [ 10.623657] omap_voltage_scale_vdd: No voltage scale API registered for vdd_core [ 10.631469] Power Management for TI OMAP3. [ 10.691253] clock: disabling unused clocks to save power [ 10.777801] Console: switching to colour frame buffer device 100x30 [ 10.803436] clock: set_rate for clock dpll4_m4_ck to rate 33230769 [ 10.809875] clk->set_rate(clk, rate) [ 10.813751] omapdss DPI: Could not find exact pixel clock. Requested 33000 kHz, got 33230 kHz [ 10.882446] regulator_init_complete: incomplete constraints, leaving LDO2 on [ 10.890655] regulator_init_complete: incomplete constraints, leaving LDO1 on [ 10.899353] davinci_emac_probe: using random MAC addr: 8e:23:bc:7d:fb:fe [ 10.912628] drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 10.924713] RAMDISK: cramfs filesystem found at block 0 [ 10.930358] RAMDISK: Loading 19032KiB [1 disk] into ram disk... \ [ 11.132720] omap_device: omap_i2c.1: new worst case deactivate latency 0: 61035 [ 11.152038] | [ 11.228607] scsi 0:0:0:0: Direct-Access SanDisk U3 Cruzer Micro 6.51 PQ: 0 ANSI: 0 CCS [ 11.240844] \ [ 11.295684] sd 0:0:0:0: [sda] 2025471 512-byte logical blocks: (1.03 GB/988 MiB) [ 11.318969] / [ 11.325744] sd 0:0:0:0: [sda] Write Protect is off [ 11.330963] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 11.340026] - [ 11.376647] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 11.386535] | [ 11.399353] sda: sda1 [ 11.417999] | [ 11.435882] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 11.442413] sd 0:0:0:0: [sda] Attached SCSI removable disk [ 11.448944] done. [ 13.200561] omap_device: omap_i2c.1: new worst case deactivate latency 0: 122070 [ 13.242828] VFS: Mounted root (cramfs filesystem) readonly on device 1:0. [ 13.251312] devtmpfs: mounted [ 13.254882] Freeing init memory: 556K [ 13.906524] UBIFS: mounted UBI device 0, volume 0, name "rw-fs-nand" [ 13.913330] UBIFS: file system size: 894291968 bytes (873332 KiB, 852 MiB, 7043 LEBs) [ 13.921752] UBIFS: journal size: 9023488 bytes (8812 KiB, 8 MiB, 72 LEBs) [ 13.929473] UBIFS: media format: w4/r0 (latest is w4/r0) [ 13.935638] UBIFS: default compressor: lzo [ 13.939910] UBIFS: reserved for root: 0 bytes (0 KiB) Starting logging: OK Starting mdev... sh: 0: unknown operand Initializing random number generator... read-only file system detected...done Starting network... [ 16.997497] omap_device: omap_i2c.1: new worst case deactivate latency 0: 183105 [ 17.224822] davinci_mdio davinci_mdio: resetting idled controller [ 17.231628] net eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=ffffffff:00, id=221537) route: SIOCADDRT: Invalid argument [ 17.483825] ti_hecc ti_hecc: setting CANBTC=0xc00a8 Load R5 CDU FPGA... [ 17.587921] R5 fpga Firmware: register spi [ 17.685424] Waiting for INIT_B to go high... [ 17.689910] Starting SPI transfer, firmware size = 340604 [ 17.907318] SPI transfer complete, waiting for FPGA_PRGRM_DONE.. [ 17.923797] FPGA firmware loaded Starting telnetd: OK Starting applications....OK Boot pin active Welcome to Buildroot buildroot login: [ 19.225219] PHY: ffffffff:00 - Link is Up - 100/Full |
