[#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

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:/> 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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