[U-Boot] U-Boot Hangs in relocate_code function

[zq_fan]

Hi:
   PLS check the ddr2 timing configuration. The function name maybe is fako_spd(), and there is a data array which stores the ddr2 timing configuration. About the configuration data, U can find on web.The JEDEC website may help.
 
PS: the timing configuration data may be read from an EEPROM
 
>Message: 16
>Date: Mon, 17 May 2010 18:55:55 +0900
>From: ?Gurumurthy G M <Gurumurthy.Gowdar at gmobis.com>
>Subject: [U-Boot] U-boot Hangs in relocate_code function
>To: <u-boot at lists.denx.de>
>Cc: amdyer at gmail.com
>Message-ID: <5858DE952C53A441BDA3408A0524130104CCE0BB at mkegmal01>
>Content-Type: text/plain; charset="iso-8859-1"
>
>
>Hi Andrew,
>          Now am able to get some messages on serial port but it is hanging after DRAM initialization i.e. during relocate_code function, below is the debug messages on serial port.
>
>I tried configuring SDRAM (DDR2) for 256 and 128 MB, but still the problem is same. 
>
>I am facing one typical problem in u-boot i.e. whenever i power on the board I will get below debug messages on serial port after 5 to 8 seconds and hangs at stack pointer.
>
>
>U-Boot 2010.03 (May 14 2010 - 16:41:46)
>Linux Advanced AVN Platform
>CPU: Au1350, id: 0x80, rev: 0x01
>DRAM:  256 MB
>Address value =90000000Top of RAM usable for U-Boot at: 90000000
>Reserving 161k for U-Boot at: 8ffd4000
>Reserving 192k for malloc() at: 8ffa4000
>Reserving 36 Bytes for Board Info at: 8ffa3fdc
>Reserving 36 Bytes for Global Data at: 8ffa3fb8
>Reserving 128k for boot params() at: 8ff83fb8
>Stack Pointer at: 8ff83f98
>
>
>U-Boot 2010.03 (May 14 2010 - 16:49:00)
>Linux Advanced AVN Platform
>CPU: Au1350, id: 0x80, rev: 0x01
>DRAM:  128 MB
>Address value =88000000Top of RAM usable for U-Boot at: 88000000
>Reserving 161k for U-Boot at: 87fd4000
>Reserving 192k for malloc() at: 87fa4000
>Reserving 36 Bytes for Board Info at: 87fa3fdc
>Reserving 36 Bytes for Global Data at: 87fa3fb8
>Reserving 128k for boot params() at: 87f83fb8
>Stack Pointer at: 87f83f98
>
>
>U-Boot 2010.03 (May 14 2010 - 16:53:58)
>Linux Advanced AVN Platform
>CPU: Au1350, id: 0x80, rev: 0x01
>DRAM:  256 MB
>Address value =90000000Top of RAM usable for U-Boot at: 90000000
>Reserving 161k for U-Boot at: 8ffd4000
>Reserving 192k for malloc() at: 8ffa4000
>Reserving 36 Bytes for Board Info at: 8ffa3fdc
>Reserving 36 Bytes for Global Data at: 8ffa3fb8
>Reserving 128k for boot params() at: 8ff83fb8
>Stack Pointer at: 8ff83f98
>
>Can you please share me your board config file and lowlevel_init.S file which you have ported u-boot for Au1550. I need it for the reference.
>
>I am doing DDR2 initialization in u-boot as per YAMON source code that will create any problem?
>
>please help me out to resolve the above issues.
>
>Thanks in Advance
>
>Regards,
>Gurumurthy Gowdar
>KPIT Cummins Infosystems Pvt Ltd
>
>
>
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