Progress! I switched all the references from ttyAMA0... to ttyAM0. Also changed netargs too. Now it starts to boot linux but hangs right after the line of: mxs_cpu_init: cpufreq init finished. In regards to your question, yes it was booting the mainline kernel.
Here is the latest output from the boot.
U-Boot 2012.07-rc1-08235-g7c5f511 (Jul 26 2012 - 12:00:38)
Freescale i.MX28 family at 454 MHz BOOT: SSP SD/MMC #0, 3V3 I2C: ready DRAM: 128 MiB MMC: MXS MMC: 0 In: serial Out: serial Err: serial Net: FEC0, FEC1 Hit any key to stop autoboot: 0 Booting from net ... BOOTP broadcast 1 *** Unhandled DHCP Option in OFFER/ACK: 42 *** Unhandled DHCP Option in OFFER/ACK: 44 *** Unhandled DHCP Option in OFFER/ACK: 42 *** Unhandled DHCP Option in OFFER/ACK: 44 DHCP client bound to address 192.168.0.240 Using FEC0 device TFTP from server 192.168.0.204; our IP address is 192.168.0.240 Filename 'uImage'. Load address: 0x42000000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ############################################## done Bytes transferred = 2562232 (2718b8 hex) ## Booting kernel from Legacy Image at 42000000 ... Image Name: Linux-2.6.35.3-571-gcca29a0 Created: 2012-07-12 15:53:55 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2562168 Bytes = 2.4 MiB Load Address: 40008000 Entry Point: 40008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel. Linux version 2.6.35.3-571-gcca29a0 (blsousan@ubuntu) (gcc version 4.4.4 (4.4.4_09.06.2010) ) #1 PREEMPT Thu Jul 12 08:53:51 PDT 2012 CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177 CPU: VIVT data cache, VIVT instruction cache Machine: Freescale MX28EVK board Memory policy: ECC disabled, Data cache writeback Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 Kernel command line: console=ttyAM0,115200 PID hash table entries: 512 (order: -1, 2048 bytes) 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: 124316k/124316k available, 6756k reserved, 0K highmem Virtual kernel memory layout: vector : 0xffff0000 - 0xffff1000 ( 4 kB) fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) DMA : 0xfde00000 - 0xffe00000 ( 32 MB) vmalloc : 0xc8800000 - 0xf0000000 ( 632 MB) lowmem : 0xc0000000 - 0xc8000000 ( 128 MB) modules : 0xbf000000 - 0xc0000000 ( 16 MB) .init : 0xc0008000 - 0xc0030000 ( 160 kB) .text : 0xc0030000 - 0xc04f7000 (4892 kB) .data : 0xc04f8000 - 0xc0535960 ( 247 kB) SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 Hierarchical RCU implementation. RCU-based detection of stalled CPUs is disabled. Verbose stalled-CPUs detection is disabled. NR_IRQS:288 Console: colour dummy device 80x30 console [ttyAM0] enabled Calibrating delay loop... 226.09 BogoMIPS (lpj=1130496) pid_max: default: 32768 minimum: 301 Security Framework initialized SELinux: Initializing. Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok regulator: core version 0.5 NET: Registered protocol family 16 regulator: vddd: 800 <--> 1575 mV at 1500 mV fast normal regulator: vdddbo: 800 <--> 1575 mV fast normal regulator: vdda: 1500 <--> 2275 mV at 1800 mV fast normal vddio = 3380000, val=10 regulator: vddio: 2880 <--> 3680 mV at 3380 mV fast normal regulator: overall_current: fast normal regulator: vbus5v: regulator: mxs-duart-1: fast normal regulator: mxs-bl-1: fast normal regulator: mxs-i2c-1: fast normal regulator: mmc_ssp-1: fast normal regulator: mmc_ssp-2: fast normal regulator: charger-1: fast normal regulator: power-test-1: fast normal regulator: cpufreq-1: fast normal i.MX IRAM pool: 124 KB@0xc8820000 usb DR wakeup device is registered IMX usb wakeup probe audit: cannot initialize inotify handle bio: create slab <bio-0> at 0 SCSI subsystem initialized Freescale USB OTG Driver loaded, $Revision: 1.55 $ usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb Advanced Linux Sound Architecture Driver Version 1.0.23. Switching to clocksource mxs clock source 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 UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol family 1 RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. Bus freq driver module loaded IMX usb wakeup probe usb h1 wakeup device is registered mxs_cpu_init: cpufreq init finished
(Stops here)
On 7/30/2012 12:18 PM, Fabio Estevam wrote:
On Mon, Jul 30, 2012 at 2:06 PM, Billbsousan@techsi.com wrote:
Here is my log. It stops at the "done, booting kernel." I tried setting the console to ttyAM0 and no change. I don't think its booting as I don't see the LCD flash and no penguin. The odd this is that I built the latest kernel for iMX and this uboot will boot it. I also included my u-boot
Do you mean you are able to boot a mainline kernel, but not a 2.6.35 kernel?
environment settings at the end.
U-boot environment settings:
U-Boot 2012.07-rc1-08235-g7c5f511 (Jul 26 2012 - 12:00:38)
Freescale i.MX28 family at 454 MHz BOOT: SSP SD/MMC #0, 3V3 I2C: ready DRAM: 128 MiB MMC: MXS MMC: 0 In: serial Out: serial Err: serial Net: FEC0, FEC1 Hit any key to stop autoboot: 0 MX28EVK U-Boot> printenv baudrate=115200 bootargs=console=ttyAMA0,115200n8 debug root=/dev/nfs ip=dhcp
Please change it to ttyAM0.
nfsroot=192.168.0.204:/tools/rootfs,v3,tcp fec_mac= bootcmd=run bootcmd_net bootcmd_net=echo Booting from net ...; run netargs; dhcp ${uimage}; bootm bootdelay=3 bootfile=uImage console=ttyAMA0
If you boot a 2.6.35 you need to use ttyAM0.
console_fsl=console=ttyAM0console_mainline=console=ttyAMA0netargs=setenv
This line seems to be without any spaces. Are you sure this is correct?
Make sure your kernel command line passes ttyAM0 instead of ttyAMA0 if you want to boot a 2.6.35 kernel.