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.gow...@gmobis.com
Subject: [U-Boot] U-boot Hangs in relocate_code function
To: u-boot@lists.denx.de
Cc: amd...@gmail.com
Message-ID: 5858de952c53a441bda3408a0524130104cce...@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 =9000Top of RAM usable for U-Boot at: 9000
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 =8800Top of RAM usable for U-Boot at: 8800
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 =9000Top of RAM usable for U-Boot at: 9000
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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