[U-Boot] [PATCH v2] mxs: spl_mem_init: Align DDR2 init with FSL bootlets source
Otavio Salvador
otavio at ossystems.com.br
Tue Mar 19 12:35:59 CET 2013
On Tue, Mar 19, 2013 at 3:52 AM, Lauri Hintsala
<lauri.hintsala at bluegiga.com> wrote:
> Hi,
>
>
> On 03/01/2013 12:59 AM, Fabio Estevam wrote:
>>
>> From: Fabio Estevam <fabio.estevam at freescale.com>
>>
>> Currently the following kernel hang happens when loading a 2.6.35 kernel
>> from
>> Freeescale on a mx28evk board:
>>
>> 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
>> ...
>
>
> I tried to boot Freescale's 2.6.35.3 kernel on apx4devkit. The device is
> still freezing after mxs_cpu_init print.
>
>
> Full logs:
>
> U-Boot 2013.04-rc1-00002-g9659479 (Mar 19 2013 - 08:30:05)
>
> CPU: Freescale i.MX28 rev1.2 at 454 MHz
> BOOT: SSP SD/MMC #0, 3V3
> I2C: ready
> DRAM: 64 MiB
> NAND: 128 MiB
> MMC: MXS MMC: 0
> In: serial
> Out: serial
> Err: serial
> Net: FEC
> Hit any key to stop autoboot: 0
>
> 1944456 bytes read in 754 ms (2.5 MiB/s)
> ## Booting kernel from Legacy Image at 41000000 ...
> Image Name: Linux-2.6.35.3-01010-ge53a812
> Created: 2013-03-19 6:31:40 UTC
> Image Type: ARM Linux Kernel Image (uncompressed)
> Data Size: 1944392 Bytes = 1.9 MiB
> Load Address: 40008000
> Entry Point: 40008000
> Loading Kernel Image ... OK
> OK
>
> Starting kernel ...
>
> Uncompressing Linux... done, booting the kernel.
> Linux version 2.6.35.3-01010-ge53a812 (hintsla at bgtlh) (gcc version 4.3.4
> (crosstool-NG-1.7.0) ) #32 Tue Mar 19 08:31:39 EET 2013
> 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: 16256
> Kernel command line: console=tty0 console=ttyAMA0,115200 consoleblank=0
> ethaddr=00:07:80:01:66:db btaddr=00:07:80:01:67:0d
> wlanaddr=00:07:80:59:ef:64 root=/dev/mmcblk0p2 rootwait
> mtdparts=gpmi-nand:128k(bootstrap),1024k(boot),768k(env),-(root) rw
> PID hash table entries: 256 (order: -2, 1024 bytes)
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 64MB = 64MB total
> Memory: 60880k/60880k available, 4656k reserved, 0K highmem
> Virtual kernel memory layout:
> vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
> DMA : 0xfde00000 - 0xffe00000 ( 32 MB)
> vmalloc : 0xc4800000 - 0xf0000000 ( 696 MB)
> lowmem : 0xc0000000 - 0xc4000000 ( 64 MB)
> modules : 0xbf000000 - 0xc0000000 ( 16 MB)
> .init : 0xc0008000 - 0xc002d000 ( 148 kB)
> .text : 0xc002d000 - 0xc03b8000 (3628 kB)
> .data : 0xc03b8000 - 0xc03e4ba0 ( 179 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 [tty0] enabled
> console [ttyAMA0] enabled
> Calibrating delay loop... 226.09 BogoMIPS (lpj=1130496)
> pid_max: default: 32768 minimum: 301
> 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 at 0xc4820000
> Initializing GPMI pins
> Initializing SSP2 pins
> bio: create slab <bio-0> at 0
> SCSI subsystem initialized
> 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.
> IMX usb wakeup probe
> usb DR wakeup device is registered
> Switching to clocksource mxs clock source
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> Switched to NOHz mode on CPU #0
> TCP established hash table entries: 2048 (order: 2, 16384 bytes)
> TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
> TCP: Hash tables configured (established 2048 bind 2048)
> 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
> WARNING : No battery connected !
> Aborting power driver initialization
> mxs-battery: probe of mxs-battery.0 failed with error 1
> mxs_cpu_init: cpufreq init finished
>
>
> And after that line the device is completely dead.
Are you sure you booted it with the Fabio's patch applied; this is
exactly how it behaves *without* it.
--
Otavio Salvador O.S. Systems
E-mail: otavio at ossystems.com.br http://www.ossystems.com.br
Mobile: +55 53 9981-7854 http://projetos.ossystems.com.br
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