[#5330] For ad1980 on BF548-EZKIT, kernel fails to wake up

Submitted By: Vivi Li

Open Date

2009-07-09 00:05:51 Close Date

2009-07-14 00:03:44

Priority:

Medium High Assignee:

Cliff Cai

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

Drivers Board:

EZKIT Lite

Processor:

BF548 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

gcc4.1_09r1-rc9

App binary format:

N/A

Summary: For ad1980 on BF548-EZKIT, kernel fails to wake up

Details:

For ad1980 on BF548-EZKIT, kernel fails to wake up from mem or standby mode.

Bellow is the log of mem mode:

U-Boot 2008.10-svn1956 (ADI-2009R1-rc2) (Jul 2 2009 - 20:20:03)

CPU: ADSP bf548-0.0 (Detected Rev: 0.2) (parallel flash boot)

Board: ADI BF548 EZ-Kit board

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

Clock: VCO: 525 MHz, Core: 525 MHz, System: 131.250 MHz

RAM: 64 MB

Flash: 16 MB

NAND: 256 MiB

In: serial

Out: serial

Err: serial

Net: MAC: 00:E0:22:FE:BD:B8

Hit any key to stop autoboot: 0

smc911x: initializing

smc911x: detected LAN9218 controller

smc911x: phy initialized

smc911x: MAC 00:e0:22:fe:bd:b8

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'uImage'.

Load address: 0x1000000

Loading: T #################################################################

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

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

done

Bytes transferred = 5176980 (4efe94 hex)

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

Image Name: Linux-2.6.28.10-ADI-2009R1-svn69

Created: 2009-07-09 2:09:02 UTC

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 5176916 Bytes = 4.9 MB

Load Address: 00001000

Entry Point: 002378bc

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 002378bc

Linux version 2.6.28.10-ADI-2009R1-svn6941 (test@uclinux61-bf548-std) (gcc version 4.1.2 (ADI svn)) #28 Thu Jul 9 02:08:41 GMT 29

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x00177220

rodata = 0x00177220-0x001f61e0

bss = 0x001f7000-0x0020ac08

data = 0x0020ac08-0x00222000

stack = 0x00220000-0x00222000

init = 0x00222000-0x00a3e000

available = 0x00a3e000-0x03dff000

DMA Zone = 0x03e00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 1

Recovering from Watchdog event

Compiled for ADSP-BF548 Rev 0.2

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

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

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Data Cache (L2 SRAM) Enabled (write-back)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 15747

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600 if

Configuring Blackfin Priority Driven Interrupts

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

console handover:boot [early_BFuart0] boot [early_shadow0] -> real [ttyBF0]

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

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

Memory available: 52428k/65536k RAM, (8304k init code, 1496k kernel code, 684k data, 2048k dma, 572k 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)

Blackfin L2 SRAM: 128 KB (128 KB free)

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

SCSI subsystem initialized

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 102

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 = 48) is a BFIN-UART

brd: module loaded

smsc911x: Driver version 2007-07-13.

eth0: SMSC911x MAC Address: 00:e0:22:fe:bd:b8

Driver 'sd' needs updating - please use bus_type methods

scsi0 : pata-bf54x

ata1: PATA max UDMA/66 irq 68

ata1.00: ATA-7: FUJITSU MHW2040AT, 0000000B, max UDMA/100

ata1.00: 78140160 sectors, multi 16: LBA

ata1.00: configured for UDMA/66

blk_queue_max_hw_segments: set to minimum 1

scsi 0:0:0:0: Direct-Access ATA FUJITSU MHW2040A 0000 PQ: 0 ANSI: 5

sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors: (40.0 GB/37.2 GiB)

sd 0:0:0:0: [sda] Write Protect is off

sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors: (40.0 GB/37.2 GiB)

sd 0:0:0:0: [sda] Write Protect is off

sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

sda: sda1

sd 0:0:0:0: [sda] Attached SCSI disk

physmap platform flash device: 02000000 at 20000000

physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank

Intel/Sharp Extended Query Table at 0x010A

Using buffer write method

Using auto-unlock on power-up/resume

cfi_cmdset_0001: Erase suspend on write enabled

RedBoot partition parsing not available

Using physmap partition information

Creating 3 MTD partitions on "physmap-flash.0":

0x00000000-0x00040000 : "bootloader(nor)"

0x00040000-0x00440000 : "linux kernel(nor)"

0x00440000-0x01000000 : "file system(nor)"

bf5xx-nand bf5xx-nand.0: page_size=256, data_width=8, wr_dly=3, rd_dly=3

NAND device: Manufacturer ID: 0x20, Chip ID: 0xda (ST Micro NAND 256MiB 3,3V 8-bit)

Creating 2 MTD partitions on "NAND 256MiB 3,3V 8-bit":

0x00000000-0x00400000 : "linux kernel(nand)"

0x00400000-0x10000000 : "file system(nand)"

input: bf54x-keys as /devices/platform/bf54x-keys/input/input0

bf54x-keys: Blackfin BF54x Keypad registered IRQ 76

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

i2c /dev entries driver

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc00700

i2c-bfin-twi i2c-bfin-twi.1: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc02200

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

bfin-sdh bfin-sdh.0: unable to request DMA channel

bfin-sdh: probe of bfin-sdh.0 failed with error -16

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 1970-03-08 08:23:08 UTC (5732588)

eth0: SMSC911x/921x identified at 0x24000000, IRQ: 175

eth0: link down

IP-Config: Complete:

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

host=bf548-ezkit, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 8304k freed

dma_alloc_init: dma_page @ 0x00a3b000 - 512 pages at 0x03e00000

eth0: link up, 100Mbps, full-duplex, lpa 0x41E1

_____________________________________

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 - https://www.analog.com/blackfin

Have a lot of fun...

BusyBox v1.13.4 (2009-07-09 02:05:44 GMT) built-in shell (msh)

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

root:/> modprobe snd-soc-core; modprobe snd-ad1980

ASoC version 0.13.2

dma rx:0 tx:1, err irq:10, regs:ffc00800

AD1980 SoC Audio Codec

asoc: AC97 <-> bf5xx-ac97 mapping ok

root:/> tone &

TONE: generating sine wave at 1000 Hz...

258

root:/> rtcwake -s 15 -m mem

wakeup from "mem" at Sun Mar 8 08:31:27 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 2008.10-svn1956 (ADI-2009R1-rc2) (Jul 2 2009 - 20:20:03)

CPU: ADSP bf548-0.0 (Detected Rev: 0.2) (parallel flash boot)

Board: ADI BF548 EZ-Kit board

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

Clock: VCO: 525 MHz, Core: 525 MHz, System: 131.250 MHz

RAM: 64 MB

Flash: 16 MB

NAND: 256 MiB

In: serial

Out: serial

Err: serial

Net: MAC: 00:E0:22:FE:BD:B8

Hit any key to stop autoboot: 0

Log of standby mode:

root:/> modprobe snd-soc-core; modprobe snd-ad1980

ASoC version 0.13.2

dma rx:0 tx:1, err irq:10, regs:ffc00800

AD1980 SoC Audio Codec

asoc: AC97 <-> bf5xx-ac97 mapping ok

root:/> tone &

TONE: generating sine wave at 1000 Hz...

258

root:/> rtcwake -s 15 -m standby

wakeup from "standby" at Thu Jan 1 21:20:50 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 2008.10-svn1956 (ADI-2009R1-rc2) (Jul 2 2009 - 20:20:03)

CPU: ADSP bf548-0.0 (Detected Rev: 0.2) (parallel flash boot)

Board: ADI BF548 EZ-Kit board

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

Clock: VCO: 525 MHz, Core: 525 MHz, System: 131.250 MHz

RAM: 64 MB

Flash: 16 MB

NAND: 256 MiB

In: serial

Out: serial

Err: serial

Net: MAC: 00:E0:22:FE:BD:B8

Hit any key to stop autoboot: 0

Follow-ups

--- Michael Hennerich 2009-07-09 08:45:05

I did some post mortem analysis.

The system suspends and then panics during bf5xx_ac97_resume() in bf5xx-sport.c

err_handler().

Every driver is responsible to gracefully stop all activity and save the

current state in suspend().

The drivers resume function is responsible to restore the pervious state.

This is not happening here.

Assign to Cliff.

-Michael

--- Cliff Cai 2009-07-09 23:32:21

Hi Michael,

I added some printks in

bf5xx_ac97_suspend(),bf5xx_ac97_resume(),err_handler(),

the stange thing is that when run rtcwake the suspend and resume are not called

at all.and it doesn't enter err_handler() as well.

Cliff

--- Vivi Li 2009-07-10 01:24:18

If tone is not running in the background, and run rtcwake, the suspend and

resume functions in audio will be called. After that, the quality of tone is not

good, the sound shakes.

If tone is running in the back and run rtcwake, the suspend and resume

functions in audio are not called.

--- Cliff Cai 2009-07-10 02:09:33

The ac97 driver enable fake mmap by default,and this fake mmap seems doesn't

works well with oss-based applications(tone,vrec/vplay) sometimes.I've tried

running aplay after resume,it works just fine.

If the mmap is disabled,both oss/alsa applications can work correctly.

SSM2602 works fine,it implements the true mmap.

Cliff

--- Michael Hennerich 2009-07-10 03:20:07

Cliff,

My post mortem is when the kernel panics during resume. You will just see the

watchdog kick off and reboot. The snd drivers suspend and resume will always be

called.

Did you try suspend mem or standby?

And do you get kernel messages like this?

root:/> echo mem > sys/power/state

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)

sd 0:0:0:0: [sda] Synchronizing SCSI cache

sd 0:0:0:0: [sda] Stopping disk

sd 0:0:0:0: [sda] Starting disk

ata1.00: configured for UDMA/66

sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors: (40.0 GB/37.2 GiB)

sd 0:0:0:0: [sda] Write Protect is off

sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support

DPO or FUA

sda: detected capacity change from 0 to 40007761920

soc-audio soc-audio: scheduling resume work

soc-audio soc-audio: starting resume work

soc-audio soc-audio: resume work completed

Restarting tasks ... done.

This is when tone was NOT running in bg.

In this case tone won't make any noise after that.

-Michael

--- Cliff Cai 2009-07-10 05:33:31

Micheal,

Thanks,the suspend and resume are always called,it's the driver's problem.

Cliff

--- Cliff Cai 2009-07-10 06:25:45

fixed now,Don't start playback/capture in resume,pcm driver will do it.

btw,for ad1980/1,if runs oss-based application,MMAP should not be enabled,

for the slow copy job involved may cause underrun.

Cliff

--- Vivi Li 2009-07-14 00:03:44

This bug is fixed now. There is a new bug of waking up from mem. I'll close this

bug and open a new one.

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[#5330] For ad1980 on BF548-EZKIT, kernel fails to wake up