[#5312] power management of suspend to ram fails in BF533-STAMP

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[#5312] power management of suspend to ram fails in BF533-STAMP

Submitted By: Vivi Li

Open Date

2009-07-03 04:51:24     Close Date

2009-07-03 07:25:17

Priority:

Medium High     Assignee:

Michael Hennerich

Status:

Closed     Fixed In Release:

N/A

Found In Release:

N/A     Release:

Category:

Drivers     Board:

STAMP

Processor:

BF533     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Rejected

Uboot version or rev.:

    Toolchain version or rev.:

gcc4.1_09r1-rc7

App binary format:

N/A     

Summary: power management of suspend to ram fails in BF533-STAMP

Details:

 

power management of suspend to ram fails in BF533-STAMP.

 

--

U-Boot 2008.10-svn1956 (ADI-2009R1-rc2) (Jul  2 2009 - 20:18:17)

 

CPU:   ADSP bf533-0.3 (Detected Rev: 0.3) (bypass boot)

Board: ADI BF533 Stamp board

       Support: http://blackfin.uclinux.org/

Clock: VCO: 497.664 MHz, Core: 497.664 MHz, System: 99.532 MHz

RAM:   128 MB

Flash:  4 MB

In:    serial

Out:   serial

Err:   serial

Net:   MAC:   00:E0:22:FE:07:5B

Hit any key to stop autoboot:  0

bfin> run ramboot

Using MAC Address 00:E0:22:FE:07:5B

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'uImage'.

Load address: 0x1000000

Loading: #################################################################

         #################################################################

         #################################################################

         #################################################################

         ######################

done

Bytes transferred = 4138323 (3f2553 hex)

## Booting kernel from Legacy Image at 01000000 ...

   Image Name:   Linux-2.6.28.10-ADI-2009R1-svn68

   Created:      2009-07-02   3:42:10 UTC

   Image Type:   Blackfin Linux Kernel Image (gzip compressed)

   Data Size:    4138259 Bytes =  3.9 MB

   Load Address: 00001000

   Entry Point:  0019f3c4

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

Starting Kernel at = 0019f3c4

Linux version 2.6.28.10-ADI-2009R1-svn6881 (test@uclinux77-bf533-ad1836-spi) (gcc version 4.1.2 (ADI svn)) #16 Wed Jul 1 21:41:59

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Warning: limiting memory to 56MB due to hardware anomaly 05000263

Board Memory: 128MB

Kernel Managed Memory: 128MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x0011d340

  rodata    = 0x0011d340-0x00172078

  bss       = 0x00173000-0x00183d0c

  data      = 0x00183d0c-0x00194000

    stack   = 0x00192000-0x00194000

  init      = 0x00194000-0x00847000

  available = 0x00847000-0x037ff000

  DMA Zone  = 0x07f00000-0x08000000

Hardware Trace Active and Enabled

Boot Mode: 0

Reset caused by Software reset

Blackfin support (C) 2004-2009 Analog Devices, Inc.

Compiled for ADSP-BF533 Rev 0.3

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 497 MHz core clock and 99 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 14223

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=11059200 earlyprintk=serial,uart0,57600 console=ttyBF0,57600 ip=10.100.4.50f

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: 48296k/131072k RAM, (6860k init code, 1136k kernel code, 476k data, 1024k dma, 73280k reserved)

Calibrating delay loop... 991.23 BogoMIPS (lpj=1982464)

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: 64 KB (53 KB free)

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_init(): registering device resources

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 94

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc00400 (irq = 21) is a BFIN-UART

brd: module loaded

smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@cam.org>

eth0: SMC91C11xFD (rev 1) at 20300300 IRQ 40 [nowait]

eth0: Ethernet addr: 00:e0:22:fe:07:5b

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

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

Advanced Linux Sound Architecture Driver Version 1.0.18rc3.

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 07:53:29 UTC (28409)

eth0: link down

IP-Config: Complete:

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

     host=bf533-stamp, domain=, nis-domain=(none),

     bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 6860k freed

dma_alloc_init: dma_page @ 0x00844000 - 256 pages at 0x07f00000

eth0: link up, 100Mbps, full-duplex, lpa 0x45E1

                           _____________________________________

        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|            - http://blackfin.uclinux.org/

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

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

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

 

Have a lot of fun...

 

 

BusyBox v1.13.4 (2009-07-01 21:38:25 MDT) built-in shell (msh)

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

 

root:/> rtcwake -s 10 -m mem

wakeup from "mem" at Thu Jan  1 07:53:46 1970

rtcwake: short write

root:/> version

kernel:    Linux release 2.6.28.10-ADI-2009R1-svn6881, build #16 Wed Jul 1 21:41:56 MDT 2009

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

user-dist: release svn-8400, build #253 Wed Jul 1 21:41:06 MDT 2009

root:/>

--

 

Follow-ups

 

--- Michael Hennerich                                        2009-07-03 05:58:02

Not a bug - this is intended behavior -

 

Please close!

 

 

    /*

     * On BF533/2/1:

     * If we enter Hibernate the SCKE Pin is driven Low,

     * so that the SDRAM enters Self Refresh Mode.

     * However when the reset sequence that follows hibernate

     * state is executed, SCKE is driven High, taking the

     * SDRAM out of Self Refresh.

     *

     * If you reconfigure and access the SDRAM "very quickly",

     * you are likely to avoid errors, otherwise the SDRAM

     * start losing its contents.

     * An external HW workaround is possible using logic gates.

     */

 

/*

*    bfin_pm_valid - Tell the PM core that we only support the standby sleep

*            state

*    @state:        suspend state we're checking.

*

*/

static int bfin_pm_valid(suspend_state_t state)

{

    return (state == PM_SUSPEND_STANDBY

#if !(defined(BF533_FAMILY) || defined(CONFIG_BF561))

    /*

     * On BF533/2/1:

     * If we enter Hibernate the SCKE Pin is driven Low,

     * so that the SDRAM enters Self Refresh Mode.

     * However when the reset sequence that follows hibernate

     * state is executed, SCKE is driven High, taking the

     * SDRAM out of Self Refresh.

     *

     * If you reconfigure and access the SDRAM "very quickly",

     * you are likely to avoid errors, otherwise the SDRAM

     * start losing its contents.

     * An external HW workaround is possible using logic gates.

     */

    || state == PM_SUSPEND_MEM

#endif

    );

}

 

--- Vivi Li                                                  2009-07-03 07:25:17

OK, close it.

 

 

 

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File Name     File Type     File Size     Posted By

config.power    application/octet-stream    31570    Vivi Li

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