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)
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