[#4704] kernel fails to suspend to mem on bf527-ezkit

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[#4704] kernel fails to suspend to mem on bf527-ezkit

Submitted By: Vivi Li

Open Date

2008-12-08 22:42:24     Close Date

2008-12-26 05:53:59

Priority:

Medium High     Assignee:

Michael Hennerich

Status:

Closed     Fixed In Release:

N/A

Found In Release:

N/A     Release:

Category:

Drivers     Board:

EZKIT Lite

Processor:

BF527     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Not reproducible

Uboot version or rev.:

    Toolchain version or rev.:

toolchain 4.1-2008_Dec_03

App binary format:

N/A     

Summary: kernel fails to suspend to mem on bf527-ezkit

Details:

 

On all platforms supporting power management, kernel fails to suspend to mem and it will reset automatically.

Standby mode is OK.

 

Bellow is the log from BF548-EZKIT:

--

Linux version 2.6.28-rc2-ADI-2009R1-pre-svn5836 (test@107-local) (gcc version 4.1.2 (ADI svn)) #5 Tue Dec 9 10:23:34 CST 2008

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x0013dcf0

  rodata    = 0x0013dcf0-0x0019e3c8

  bss       = 0x0019e3d0-0x001aef20

  data      = 0x001aef20-0x001c2000

    stack   = 0x001c0000-0x001c2000

  init      = 0x001c2000-0x0049f000

  available = 0x0049f000-0x03eff000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Reset caused by Software reset

Blackfin support (C) 2004-2008 Analog Devices, Inc.

Compiled for ADSP-BF527 Rev 0.0

ERROR: Not running on ADSP-BF527: unknown CPUID 0x27e0 Rev 0.0

Blackfin Linux support by   blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

NOMPU: setting up cplb tables for global access

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-through)

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 16001

Kernel command line: root=/dev/mtdblock0 rw earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600 ip=10.100.4.50:10.f

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

console handover: boot [early_BFuart0] -> real [ttyBF0]

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 59196k/65536k RAM, (2932k init code, 1267k kernel code, 529k data, 1024k dma, 584k reserved)

Calibrating delay loop... 1046.52 BogoMIPS (lpj=2093056)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (15 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (42 KB free)

PDA for CPU0 reserved at 0019f3c0

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

musb_hdrc: version 6.0, pio, host, debug=0

musb_hdrc: USB Host mode controller at ffc03800 using PIO, IRQ 59

musb_hdrc musb_hdrc.0: MUSB HDRC host driver

musb_hdrc musb_hdrc.0: 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

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

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

NET: Registered protocol family 1

msgmni has been set to 115

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

bfin-otp: initialized

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

brd: module loaded

bfin_mac_mdio: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=25)@sclk=131MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc01400

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

usbcore: registered new interface driver usbhid

usbhid: v2.6:USB HID core driver

Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).

ALSA device list:

  No soundcards found.

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1970-01-01 00:27:07 UTC (1627)

hid_zpff: Unknown symbol _input_ff_create_memless

IP-Config: Complete:

     device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

     host=bf527-ezkit, domain=, nis-domain=(none),

     bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 2932k freed

dma_alloc_init: dma_page @ 0x0049b000 - 256 pages at 0x03f00000

                           _____________________________________

        a8888b.           / Welcome to the uClinux distribution \

       d888888b.         /       _     _                         \

       8P"YP"Y88        /       | |   |_|            __  __ (TM)  |

       8|o||o|88  _____/        | |    _ ____  _   _ \ \/ /       |

       8'    .88       \        | |   | |  _ \| | | | \  /        |

       8`._.' Y8.       \       | |__ | | | | | |_| | /  \        |

      d/      `8b.       \      \____||_|_| |_|\____|/_/\_\       |

     dP   .    Y8b.       \   For embedded processors including   |

    d8:'  "  `::88b        \    the Analog Devices Blackfin      /

   d8"         'Y88b        \___________________________________/

  :8P    '      :888

   8a.   :     _a88P         For further information, check out:

._/"Yaa_:   .| 88P|            -   blackfin.uclinux.org/

\    YP"    `| 8P  `.          -   docs.blackfin.uclinux.org/

/     \.___.d|    .'           -   www.uclinux.org/

`--..__)8888P`._.'  jgs/a:f    -   www.analog.com/blackfin

 

Have a lot of fun...

 

 

BusyBox v1.13.1 (2008-12-09 10:21:54 CST) built-in shell (msh)

Enter 'help' for a list of built-in commands.

 

root:/> PHY: 0:01 - Link is Up - 100/Full

 

root:/>

root:/>

root:/> rtcwake -s 10 -m standby

wakeup from "standby" at Thu Jan  1 00:30:11 1970

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.01 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

PHY: 0:01 - Link is Down

Restarting tasks ... done.

root:/> PHY: 0:01 - Link is Up - 100/Full

 

root:/>

root:/> rtcwake -s 10 -m mem

wakeup from "mem" at Thu Jan  1 00:30:30 1970

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.00 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

 

 

U-Boot 1.1.6-svn1273 (ADI-2008R1.5) (Jul 21 2008 - 00:29:36)

 

CPU:   ADSP bf527-0.0 (Detected Rev: 0.0)

Board: ADI BF527 EZ-Kit board

       Support:   blackfin.uclinux.org/

Clock: VCO: 525 MHz, Core: 525 MHz, System: 131 MHz

RAM:   64 MB

Flash:  4 MB

In:    serial

Out:   serial

Err:   serial

Net:   Blackfin EMAC

MAC:   00:E0:22:FE:B8:14

Hit any key to stop autoboot:  0

bfin>

--

 

Follow-ups

 

--- Mike Frysinger                                           2008-12-08 23:13:15

i think michael already outlined that our bf527-ezkit hardware sucks ...

 

--- Michael Hennerich                                        2008-12-09 05:54:32

Works for me - please update your u-boot!!!

And try again.

 

U-Boot 1.1.6-svn1273 (ADI-2008R1.5) (Jul 21 2008 - 00:29:36)

Return from Hibernate was still under construction svn1273

 

If it still fails - then its a HW issue.

 

-Michael

 

root:/> rtcwake -s 10 -m mem

wakeup from "mem" at Wed Jan  7 15:02:59 1970

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.00 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

PHY: 0:03 - Link is Down

Restarting tasks ... done.

PHY: 0:03 - Link is Up - 100/Full

root:/>

 

root:/> rtcwake -s 10 -m mem

wakeup from "mem" at Wed Jan  7 15:03:18 1970

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.00 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

PHY: 0:03 - Link is Down

Restarting tasks ... done.

PHY: 0:03 - Link is Up - 100/Full

 

root:/> version

kernel:    Linux release 2.6.28-rc2-ADI-2009R1-pre-svn5841, build #9086 Tue Dec

9 11:42:58 CET 2008

toolchain: bfin-uclinux-gcc release gcc version 4.1.2 (ADI svn)

user-dist: release svn-7433, build #3089 Tue Dec 9 11:42:27 CET 2008

 

root:/> cat /proc/cpuinfo

processor       : 0

vendor_id       : Analog Devices

cpu family      : Compiled for:0x27e4, running on:0x27e0

model name      : ADSP-BF527 525(MHz CCLK) 131(MHz SCLK) (mpu off)

stepping        : 0

cpu MHz         : 525.000/131.250000

bogomips        : 1046.52

Calibration     : 523264000 loops

cache size      : 16 KB(L1 icache) 32 KB(L1 dcache-wt) 0 KB(L2 cache)

dbank-A/B       : cache/cache

icache setup    : 4 Sub-banks/4 Ways, 32 Lines/Way

dcache setup    : 2 Super-banks/4 Sub-banks/2 Ways, 64 Lines/Way

board name      : ADI BF527-EZKIT

board memory    : 65536 kB (0x00000000 -> 0x04000000)

kernel memory   : 64504 kB (0x00001000 -> 0x03eff000)

 

root:/>

 

--- Vivi Li                                                  2008-12-26 05:53:59

Update u-boot works. Close it.

Thanks!

 

 

 

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File Name     File Type     File Size     Posted By

config.power    application/octet-stream    38062    Vivi Li

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