Hi, I'm working on adding gta04 board (omap 3630) to be able boot with device tree. Booting kernel 3.6 seems working fine but I'm facing a problem when userspace start it complain it cannot open /dev/ttyO2 console. Booting without dtb it's working fine. Any ideas? Am I missing something? [ 0.000000] Booting Linux on physical CPU 0 [ 0.000000] Linux version 3.6.0-00002-g269a275-dirty (open-nandra@nandra-host) (gcc version 4.6.3 20120201 (prerelease) (crosstool-NG linaro-1.13.1-2012.02-20120222 [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine: Generic OMAP3 (Flattened Device Tree), model: OMAP3 GTA04 (OMAP3730) [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] OMAP3630 ES1.2 (l2cache iva sgx neon isp 192mhz_clk ) [ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/332/600 MHz [ 0.000000] PERCPU: Embedded 9 pages/cpu @c10d3000 s12736 r8192 d15936 u36864 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129792 [ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200 [ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Memory: 511MB = 511MB total [ 0.000000] Memory: 505600k/505600k available, 18688k 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] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB) [ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc067ff6c (6624 kB) [ 0.000000] .init : 0xc0680000 - 0xc06cf1c0 ( 317 kB) [ 0.000000] .data : 0xc06d0000 - 0xc076cf00 ( 628 kB) [ 0.000000] .bss : 0xc076cf24 - 0xc0cc6f8c (5481 kB) [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1. [ 0.000000] NR_IRQS:474 [ 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] OMAP clockevent source: GPTIMER1 at 32768 Hz [ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms [ 0.000000] OMAP clocksource: 32k_counter 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: 3695 kB [ 0.000000] per task-struct memory footprint: 1152 bytes [ 0.000854] Calibrating delay loop... 397.57 BogoMIPS (lpj=1554432) [ 0.109344] pid_max: default: 32768 minimum: 301 [ 0.109863] Security Framework initialized [ 0.110046] Mount-cache hash table entries: 512 [ 0.119232] CPU: Testing write buffer coherency: ok [ 0.120147] CPU0: thread -1, cpu 0, socket -1, mpidr 0 [ 0.120208] Setting up static identity map for 0x804a7c08 - 0x804a7c78 [ 0.122406] Brought up 1 CPUs [ 0.122436] SMP: Total of 1 processors activated (397.57 BogoMIPS). [ 0.143829] dummy: [ 0.145965] NET: Registered protocol family 16 [ 0.146728] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.147705] GPMC revision 5.0 [ 0.147918] gpmc: irq-20 could not claim: err -22 [ 0.163360] Reprogramming SDRC clock to 332000000 Hz [ 0.163391] dpll3_m2_clk rate change failed: -22 [ 0.171417] OMAP GPIO hardware version 2.5 [ 0.197387] No ATAGs? [ 0.197418] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.209869] omap-mcbsp.2: alias fck already exists [ 0.210693] omap-mcbsp.3: alias fck already exists [ 0.216308] OMAP DMA hardware revision 5.0 [ 0.281707] bio: create slab <bio-0> at 0 [ 0.377075] omap-dma-engine omap-dma-engine: OMAP DMA engine driver [ 0.385131] SCSI subsystem initialized [ 0.387786] usbcore: registered new interface driver usbfs [ 0.388366] usbcore: registered new interface driver hub [ 0.389221] usbcore: registered new device driver usb [ 0.406707] omap_i2c i2c.14: bus -1 rev1.4.0 at 2600 kHz [ 0.416412] twl 0-0048: PIH (irq 7) chaining IRQs 320..328 [ 0.416992] twl 0-0048: power (irq 325) chaining IRQs 328..335 [ 0.421539] VDAC: 1800 mV [ 0.424896] VPLL2: 1800 mV [ 0.427368] VMMC1: 1850 <--> 3150 mV at 3000 mV [ 0.429534] twl4030_gpio gpio.30: gpio (irq 320) chaining IRQs 336..353 [ 0.445495] omap_i2c i2c.15: bus -1 rev1.4.0 at 400 kHz [ 0.449188] omap_i2c i2c.16: bus -1 rev1.4.0 at 100 kHz [ 0.458312] Switching to clocksource 32k_counter [ 0.592712] NET: Registered protocol family 2 [ 0.594848] TCP established hash table entries: 16384 (order: 5, 131072 bytes) [ 0.595550] TCP bind hash table entries: 16384 (order: 7, 589824 bytes) [ 0.605010] TCP: Hash tables configured (established 16384 bind 16384) [ 0.605224] TCP: reno registered [ 0.605255] UDP hash table entries: 256 (order: 2, 20480 bytes) [ 0.605590] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes) [ 0.606567] NET: Registered protocol family 1 [ 0.608093] RPC: Registered named UNIX socket transport module. [ 0.608123] RPC: Registered udp transport module. [ 0.608123] RPC: Registered tcp transport module. [ 0.608154] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.609191] NetWinder Floating Point Emulator V0.97 (double precision) [ 0.785827] VFS: Disk quotas dquot_6.5.2 [ 0.786163] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.789398] NFS: Registering the id_resolver key type [ 0.789916] Key type id_resolver registered [ 0.789947] Key type id_legacy registered [ 0.790100] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 0.790679] msgmni has been set to 987 [ 0.794189] io scheduler noop registered [ 0.794219] io scheduler deadline registered [ 0.794311] io scheduler cfq registered (default) [ 0.797149] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.804382] serial.10: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0 [ 0.806304] serial.11: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1 [ 0.807800] serial.12: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2 [ 1.446411] console [ttyO2] enabled [ 1.452087] serial.13: ttyO3 at MMIO 0x49042000 (irq = 80) is a OMAP UART3 [ 1.494506] brd: module loaded [ 1.518707] loop: module loaded [ 1.528167] mtdoops: mtd device (mtddev=name/number) must be supplied [ 1.536315] OneNAND driver initializing [ 1.554779] usbcore: registered new interface driver asix [ 1.561431] usbcore: registered new interface driver cdc_ether [ 1.568359] usbcore: registered new interface driver smsc95xx [ 1.574920] usbcore: registered new interface driver net1080 [ 1.581604] usbcore: registered new interface driver cdc_subset [ 1.588470] usbcore: registered new interface driver zaurus [ 1.595031] usbcore: registered new interface driver cdc_ncm [ 1.603332] usbcore: registered new interface driver cdc_wdm [ 1.609466] Initializing USB Mass Storage driver... [ 1.615386] usbcore: registered new interface driver usb-storage [ 1.621704] USB Mass Storage support registered. [ 1.627777] usbcore: registered new interface driver libusual [ 1.634582] usbcore: registered new interface driver usbtest [ 1.642303] mousedev: PS/2 mouse device common for all mice [ 1.653778] twl_rtc rtc.26: Enabling TWL-RTC [ 1.662689] twl_rtc rtc.26: rtc core: registered rtc.26 as rtc0 [ 1.670806] i2c /dev entries driver [ 1.678436] Driver for 1-wire Dallas network protocol. [ 1.687377] omap_wdt: OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec [ 1.698944] omap_hsmmc mmc.21: Failed to get debounce clk [ 1.704925] omap-dma-engine omap-dma-engine: allocating channel for 62 [ 1.711944] omap-dma-engine omap-dma-engine: allocating channel for 61 [ 1.764221] omap_hsmmc mmc.22: Failed to get debounce clk [ 1.769958] omap-dma-engine omap-dma-engine: allocating channel for 48 [ 1.776947] omap-dma-engine omap-dma-engine: allocating channel for 47 [ 1.834381] omap_hsmmc mmc.23: Failed to get debounce clk [ 1.840118] omap-dma-engine omap-dma-engine: allocating channel for 78 [ 1.847137] omap-dma-engine omap-dma-engine: allocating channel for 77 [ 1.865386] mmc0: host does not support reading read-only switch. assuming write-enable. [ 1.876281] mmc0: new high speed SDHC card at address 84bb [ 1.884857] mmcblk0: mmc0:84bb SU04G 3.69 GiB [ 1.895904] mmcblk0: p1 p2 p3 [ 1.908355] usbcore: registered new interface driver usbhid [ 1.914428] usbhid: USB HID core driver [ 1.918457] oprofile: hardware counters not available [ 1.923828] oprofile: using timer interrupt. [ 1.929168] TCP: cubic registered [ 1.932678] Initializing XFRM netlink socket [ 1.937408] NET: Registered protocol family 17 [ 1.942199] NET: Registered protocol family 15 [ 1.947357] Key type dns_resolver registered [ 1.951995] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3 [ 1.960235] ThumbEE CPU extension supported. [ 1.997375] clock: disabling unused clocks to save power [ 2.012481] VPLL2: disabling [ 2.016296] VDAC: disabling [ 2.022857] input: gpio-keys.25 as /devices/gpio-keys.25/input/input0 [ 2.038879] twl_rtc rtc.26: setting system clock to 2000-01-01 00:00:41 UTC (946684841) [ 2.058502] EXT3-fs (mmcblk0p2): recovery required on readonly filesystem [ 2.065826] EXT3-fs (mmcblk0p2): write access will be enabled during recovery [ 2.384826] kjournald starting. Commit interval 5 seconds [ 2.407135] EXT3-fs (mmcblk0p2): recovery complete [ 2.412292] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode [ 2.420013] VFS: Mounted root (ext3 filesystem) readonly on device 179:2. [ 2.427886] Freeing init memory: 316K [ 2.601013] EXT3-fs (mmcblk0p2): warning: maximal mount count reached, running e2fsck is recommended [ 2.621948] EXT3-fs (mmcblk0p2): using internal journal Starting logging :OK Initializing random number generator... done. Starting network... can't open /dev/ttyO2: No such file or directory can't open /dev/ttyO2: No such file or directory can't open /dev/ttyO2: No such file or directory can't open /dev/ttyO2: No such file or directory can't open /dev/ttyO2: No such file or directory can't open /dev/ttyO2: No such file or directory can't open /dev/ttyO2: No such file or directory I was trying latest Linus tree but sadly kernel doesn't start at all (EARLY_PRINTK + CONFIG_LL report nothing) Thanks, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com -- 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
