You need to add the Kernel option "rootdelay=1" to basically delay the Kernel for a moment while attempting to using the SDcard as the RFS mount point. -- Ashwin On Fri, Mar 20, 2009 at 9:06 AM, twebb <taliaferro62@xxxxxxxxx> wrote: > I'm using linux-omap-2.6.27-omap1 and am seeing an apparent timing > issue at kernel startup. The board is an OMAP 35x EVM and is > configured to boot from the SDcard. Everything works find IF a > keyboard is connected to the USB port of the EVM - the kernel detects > the mmcblk0 device (SDcard) and all it's partitions, and mounts > mmcblk0p1 appropriately as root. However, if the keyboard is not > installed the SDcard is not recognized and the kernel panics. Same > kernel, same kernel args, save everything - just different response > based on whether keyboard is attached or not. Any ideas? I'm > including the good and bad kernel startup logs below... > > Thanks, > twebb > > ***** Good ***** > Linux version 2.6.27-omap1 (jb@jb) (gcc version 4.2.1 (CodeSourcery Source > ry G++ Lite 2007q3-51)) #16 Thu Mar 19 16:59:31 EDT 2009 > CPU: ARMv7 Processor [411fc082] revision 2 (ARMv7), cr=00c5387f > Machine: OMAP3 EVM > Memory policy: ECC disabled, Data cache writeback > OMAP3430 ES2.1 > SRAM: Mapped pa 0x40200000 to va 0xd7000000 size: 0x100000 > CPU0: L1 I VIPT cache. Caches unified at level 2, coherent at level 3 > CPU0: Level 1 cache is separate instruction and data > CPU0: I cache: 16384 bytes, associativity 4, 64 byte lines, 64 sets, > supports RA > CPU0: D cache: 16384 bytes, associativity 4, 64 byte lines, 64 sets, > supports RA WB WT > CPU0: Level 2 cache is unified > CPU0: unified cache: 262144 bytes, associativity 8, 64 byte lines, 512 sets, > supports WA RA WB WT > Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 > Kernel command line: mem=128M console=ttyS2,115200e8 noinitrd init=init root=/de > v/mmcblk0p2 rw rootfstype=ext3 > Clocking rate (Crystal/DPLL/ARM core): 26.0/166/500 MHz > GPMC revision 5.0 > IRQ: Found an INTC at 0xd8200000 (revision 4.0) with 96 interrupts > Total of 96 interrupts on 1 active controller > OMAP34xx GPIO hardware version 2.5 > PID hash table entries: 512 (order: 9, 2048 bytes) > OMAP clockevent source: GPTIMER1 at 32768 Hz > Console: colour dummy device 80x30 > Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) > Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) > Memory: 128MB = 128MB total > Memory: 126108KB available (3048K code, 447K data, 148K init) > Calibrating delay loop... 499.92 BogoMIPS (lpj=1949696) > Mount-cache hash table entries: 512 > CPU: Testing write buffer coherency: ok > net_namespace: 288 bytes > android_power_init > android_power_init done > NET: Registered protocol family 16 > MUX: setup J21_34XX_I2C1_SDA (0xd80021bc): 0x1718 -> 0x0118 > MUX: setup K21_34XX_I2C1_SCL (0xd80021ba): 0x1718 -> 0x0118 > MUX: setup AE15_34XX_I2C2_SDA (0xd80021c0): 0x1718 -> 0x0118 > MUX: setup AF15_34XX_I2C2_SCL (0xd80021be): 0x1718 -> 0x0118 > MUX: setup AG14_34XX_I2C3_SDA (0xd80021c4): 0x1718 -> 0x0118 > MUX: setup AF14_34XX_I2C3_SCL (0xd80021c2): 0x1718 -> 0x0118 > OMAP DMA hardware revision 4.0 > USB: No board-specific platform config found > i2c_omap i2c_omap.1: bus 1 rev3.12 at 2600 kHz > twl4030: PIH (irq 7) chaining IRQs 368..375 > twl4030: power (irq 373) chaining IRQs 376..383 > twl4030: gpio (irq 368) chaining IRQs 384..401 > i2c_omap i2c_omap.2: bus 2 rev3.12 at 400 kHz > i2c_omap i2c_omap.3: bus 3 rev3.12 at 400 kHz > twl4030_usb twl4030_usb: Initialized TWL4030 USB module > SCSI subsystem initialized > usbcore: registered new interface driver usbfs > usbcore: registered new interface driver hub > usbcore: registered new device driver usb > musb_hdrc: version 6.0, musb-dma, otg (peripheral+host), debug=0 > musb_hdrc: USB OTG mode controller at d80ab000 using DMA, IRQ 92 > NET: Registered protocol family 2 > IP route cache hash table entries: 1024 (order: 0, 4096 bytes) > TCP established hash table entries: 4096 (order: 3, 32768 bytes) > TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > TCP: Hash tables configured (established 4096 bind 4096) > TCP reno registered > NET: Registered protocol family 1 > NetWinder Floating Point Emulator V0.97 (double precision) > ashmem: initialized > VFS: Disk quotas dquot_6.5.1 > Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) > msgmni has been set to 246 > io scheduler noop registered > io scheduler anticipatory registered (default) > io scheduler deadline registered > io scheduler cfq registered > omapfb: configured for panel omap3edge > omapfb: DISPC version 3.0 initialized > Console: switching to colour frame buffer device 60x40 > omapfb: Framebuffer initialized. Total vram 1228800 planes 1 > omapfb: Pixclock 24000 kHz hfreq 45.2 kHz vfreq 70.3 Hz > Serial: 8250/16550 driver4 ports, IRQ sharing enabled > serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654 > serial8250.0: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654 > serial8250.0: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654 > console [ttyS2] enabled > brd: module loaded > loop: module loaded > i2c /dev entries driver > Driver 'sd' needs updating - please use bus_type methods > usbmon: debugfs is not available > Initializing USB Mass Storage driver... > usbcore: registered new interface driver usb-storage > USB Mass Storage support registered. > usbcore: registered new interface driver usbtest > zero gadget: Gadget Zero, version: Cinco de Mayo 2008 > zero gadget: zero ready > musb_hdrc musb_hdrc: MUSB HDRC host driver > musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1 > usb usb1: configuration #1 chosen from 1 choice > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 1 port detected > usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 > usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 > usb usb1: Product: MUSB HDRC host driver > usb usb1: Manufacturer: Linux 2.6.27-omap1-svn71 musb-hcd > usb usb1: SerialNumber: musb_hdrc > input: omap_twl4030keypad as /class/input/input0 > ads7846 spi1.0: touchscreen, irq 335 > input: ADS784x Touchscreen as /class/input/input1 > OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec > usb 1-1: new low speed USB device using musb_hdrc and address 2 > usb 1-1: device v04b4 p0101 is not supported > usb 1-1: configuration #1 chosen from 1 choice > usb 1-1: New USB device found, idVendor=04b4, idProduct=0101 > usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > usb 1-1: Product: USB Portable Keyboard > usb 1-1: Manufacturer: HOLTEK > mmc0: host does not support reading read-only switch. assuming write-enable. > mmc0: new SDHC card at address 8fe4 > mmcblk0: mmc0:8fe4 SD04G 3872256KiB > mmcblk0:<6>input: HOLTEK USB Portable Keyboard as /class/input/input2 > p1 p2 p3 p4 < p5 p6 > > input: USB HID v1.10 Keyboard [HOLTEK USB Portable Keyboard] on usb-musb_hdrc-1 > usbcore: registered new interface driver usbhid > usbhid: v2.6:USB HID core driver > logger: created 64K log 'log_main' > logger: created 64K log 'log_events' > logger: created 64K log 'log_radio' > TCP cubic registered > NET: Registered protocol family 17 > NET: Registered protocol family 15 > RPC: Registered udp transport module. > RPC: Registered tcp transport module. > Power Management for TI OMAP3. > SmartReflex driver initialized > Disabling unused clock "gpt2_ick" > Disabling unused clock "gpt2_fck" > Disabling unused clock "wdt2_ick" > Disabling unused clock "wdt2_fck" > Disabling unused clock "mmchs_ick" > Disabling unused clock "mmchs_fck" > Disabling unused clock "dpll5_ck" > Disabling unused clock "dpll4_m6x2_ck" > Disabling unused clock "dpll4_m5x2_ck" > Disabling unused clock "dpll3_m3x2_ck" > Disabling unused clock "sys_clkout1" > VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1 > drivers/rtc/hctosys.c: unable to open rtc device (rtc0) > kjournald starting. Commit interval 5 seconds > EXT3 FS on mmcblk0p2, internal journal > EXT3-fs: mounted filesystem with ordered data mode. > VFS: Mounted root (ext3 filesystem). > Freeing init memory: 148K > kjournald starting. Commit interval 5 seconds > EXT3 FS on mmcblk0p3, internal journal > EXT3-fs: recovery complete. > EXT3-fs: mounted filesystem with ordered data mode. > kjournald starting. Commit interval 5 seconds > EXT3 FS on mmcblk0p5, internal journal > EXT3-fs: recovery complete. > EXT3-fs: mounted filesystem with ordered data mode. > kjournald starting. Commit interval 5 seconds > EXT3 FS on mmcblk0p6, internal journal > EXT3-fs: recovery complete. > EXT3-fs: mounted filesystem with ordered data mode. > > ***** Bad ***** > Linux version 2.6.27-omap1 (jb@jb) (gcc version 4.2.1 (CodeSourcery Source > ry G++ Lite 2007q3-51)) #16 Thu Mar 19 16:59:31 EDT 2009 > CPU: ARMv7 Processor [411fc082] revision 2 (ARMv7), cr=00c5387f > Machine: OMAP3 EVM > Memory policy: ECC disabled, Data cache writeback > OMAP3430 ES2.1 > SRAM: Mapped pa 0x40200000 to va 0xd7000000 size: 0x100000 > CPU0: L1 I VIPT cache. Caches unified at level 2, coherent at level 3 > CPU0: Level 1 cache is separate instruction and data > CPU0: I cache: 16384 bytes, associativity 4, 64 byte lines, 64 sets, > supports RA > CPU0: D cache: 16384 bytes, associativity 4, 64 byte lines, 64 sets, > supports RA WB WT > CPU0: Level 2 cache is unified > CPU0: unified cache: 262144 bytes, associativity 8, 64 byte lines, 512 sets, > supports WA RA WB WT > Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 > Kernel command line: mem=128M console=ttyS2,115200e8 noinitrd init=init root=/de > v/mmcblk0p2 rw rootfstype=ext3 > Clocking rate (Crystal/DPLL/ARM core): 26.0/166/500 MHz > GPMC revision 5.0 > IRQ: Found an INTC at 0xd8200000 (revision 4.0) with 96 interrupts > Total of 96 interrupts on 1 active controller > OMAP34xx GPIO hardware version 2.5 > PID hash table entries: 512 (order: 9, 2048 bytes) > OMAP clockevent source: GPTIMER1 at 32768 Hz > Console: colour dummy device 80x30 > Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) > Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) > Memory: 128MB = 128MB total > Memory: 126108KB available (3048K code, 447K data, 148K init) > Calibrating delay loop... 499.92 BogoMIPS (lpj=1949696) > Mount-cache hash table entries: 512 > CPU: Testing write buffer coherency: ok > net_namespace: 288 bytes > android_power_init > android_power_init done > NET: Registered protocol family 16 > MUX: setup J21_34XX_I2C1_SDA (0xd80021bc): 0x1718 -> 0x0118 > MUX: setup K21_34XX_I2C1_SCL (0xd80021ba): 0x1718 -> 0x0118 > MUX: setup AE15_34XX_I2C2_SDA (0xd80021c0): 0x1718 -> 0x0118 > MUX: setup AF15_34XX_I2C2_SCL (0xd80021be): 0x1718 -> 0x0118 > MUX: setup AG14_34XX_I2C3_SDA (0xd80021c4): 0x1718 -> 0x0118 > MUX: setup AF14_34XX_I2C3_SCL (0xd80021c2): 0x1718 -> 0x0118 > OMAP DMA hardware revision 4.0 > USB: No board-specific platform config found > i2c_omap i2c_omap.1: bus 1 rev3.12 at 2600 kHz > twl4030: PIH (irq 7) chaining IRQs 368..375 > twl4030: power (irq 373) chaining IRQs 376..383 > twl4030: gpio (irq 368) chaining IRQs 384..401 > i2c_omap i2c_omap.2: bus 2 rev3.12 at 400 kHz > i2c_omap i2c_omap.3: bus 3 rev3.12 at 400 kHz > twl4030_usb twl4030_usb: Initialized TWL4030 USB module > SCSI subsystem initialized > usbcore: registered new interface driver usbfs > usbcore: registered new interface driver hub > usbcore: registered new device driver usb > musb_hdrc: version 6.0, musb-dma, otg (peripheral+host), debug=0 > musb_hdrc: USB OTG mode controller at d80ab000 using DMA, IRQ 92 > NET: Registered protocol family 2 > IP route cache hash table entries: 1024 (order: 0, 4096 bytes) > TCP established hash table entries: 4096 (order: 3, 32768 bytes) > TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > TCP: Hash tables configured (established 4096 bind 4096) > TCP reno registered > NET: Registered protocol family 1 > NetWinder Floating Point Emulator V0.97 (double precision) > ashmem: initialized > VFS: Disk quotas dquot_6.5.1 > Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) > msgmni has been set to 246 > io scheduler noop registered > io scheduler anticipatory registered (default) > io scheduler deadline registered > io scheduler cfq registered > omapfb: configured for panel omap3edge > omapfb: DISPC version 3.0 initialized > Console: switching to colour frame buffer device 60x40 > omapfb: Framebuffer initialized. Total vram 1228800 planes 1 > omapfb: Pixclock 24000 kHz hfreq 45.2 kHz vfreq 70.3 Hz > Serial: 8250/16550 driver4 ports, IRQ sharing enabled > serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654 > serial8250.0: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654 > serial8250.0: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654 > console [ttyS2] enabled > brd: module loaded > loop: module loaded > i2c /dev entries driver > Driver 'sd' needs updating - please use bus_type methods > usbmon: debugfs is not available > Initializing USB Mass Storage driver... > usbcore: registered new interface driver usb-storage > USB Mass Storage support registered. > usbcore: registered new interface driver usbtest > zero gadget: Gadget Zero, version: Cinco de Mayo 2008 > zero gadget: zero ready > musb_hdrc musb_hdrc: MUSB HDRC host driver > musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1 > usb usb1: configuration #1 chosen from 1 choice > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 1 port detected > usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 > usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 > usb usb1: Product: MUSB HDRC host driver > usb usb1: Manufacturer: Linux 2.6.27-omap1-svn71 musb-hcd > usb usb1: SerialNumber: musb_hdrc > input: omap_twl4030keypad as /class/input/input0 > ads7846 spi1.0: touchscreen, irq 335 > input: ADS784x Touchscreen as /class/input/input1 > OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec > usb 1-1: new low speed USB device using musb_hdrc and address 2 > usb 1-1: device v04b4 p0101 is not supported > usb 1-1: configuration #1 chosen from 1 choice > usb 1-1: New USB device found, idVendor=04b4, idProduct=0101 > usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > usb 1-1: Product: USB Portable Keyboard > usb 1-1: Manufacturer: HOLTEK > input: HOLTEK USB Portable Keyboard as /class/input/input2 > input: USB HID v1.10 Keyboard [HOLTEK USB Portable Keyboard] on usb-musb_hdrc-1 > usbcore: registered new interface driver usbhid > usbhid: v2.6:USB HID core driver > logger: created 64K log 'log_main' > logger: created 64K log 'log_events' > logger: created 64K log 'log_radio' > TCP cubic registered > NET: Registered protocol family 17 > NET: Registered protocol family 15 > RPC: Registered udp transport module. > RPC: Registered tcp transport module. > Power Management for TI OMAP3. > SmartReflex driver initialized > Disabling unused clock "gpt2_ick" > Disabling unused clock "gpt2_fck" > Disabling unused clock "wdt2_ick" > Disabling unused clock "wdt2_fck" > Disabling unused clock "mmchs_ick" > Disabling unused clock "mmchs_fck" > Disabling unused clock "dpll5_ck" > Disabling unused clock "dpll4_m6x2_ck" > Disabling unused clock "dpll4_m5x2_ck" > Disabling unused clock "dpll3_m3x2_ck" > Disabling unused clock "sys_clkout1" > VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1 > drivers/rtc/hctosys.c: unable to open rtc device (rtc0) > Root-NFS: No NFS server available, giving up. > VFS: Unable to mount root fs via NFS, trying floppy. > VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0) > Please append a correct "root=" boot option; here are the available partitions: > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
