On 03/19/2013 01:35 PM, Otavio Salvador wrote:
On Tue, Mar 19, 2013 at 3:52 AM, Lauri Hintsala lauri.hintsala@bluegiga.com wrote:
Hi,
On 03/01/2013 12:59 AM, Fabio Estevam wrote:
From: Fabio Estevam fabio.estevam@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@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@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.
Yes, I am. I booted up U-Boot version "2013.04-rc1-00002-g9659479 (Mar 19 2013 - 08:30:05)" and my git log says:
$ git log --oneline -3 9659479 (HEAD) mxs: spl_mem_init: Align DDR2 init with FSL bootlets source 7ddcf4c ARM: mxs: disable battery charger circuit 2536850 (tag: v2013.04-rc1) Prepare v2013.04-rc1
Battery charger patch is very simple and it shouldn't affect to this problem any way:
--- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c @@ -918,6 +918,9 @@ void mxs_power_init(void)
writel(POWER_5VCTRL_PWDN_5VBRNOUT, &power_regs->hw_power_5vctrl_set);
+ /* Disable battery charger circuit */ + power_regs->hw_power_charge_set = POWER_CHARGE_PWD_BATTCHRG; + early_delay(1000); }
Lauri