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From: RgC <sessyargc@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] USB detection
Date: Thu, 25 Oct 2012 22:26:13 +0900	[thread overview]
Message-ID: <20121025132613.GA306@crg> (raw)
In-Reply-To: <1351167718.2582.10.camel@Manukumar>

Truncated CCs

Hi,

On 2012.10/25, Manukumar wrote:
> Dear All
> 
> While board bring up in custom board 
> iam getting below mentioned error
> 
> I2C:   ready
> DRAM:  DDR: failed to read SPD from address

It seems you are using a DIMM for your memory (as opposed to directly soldered on the board).

Simply put, DDR DIMMs have a small EEPROM which contains data about the device. You access
the SPD EEPROM via an I2C address. If the DIMM detection code talks to this address and does
not detect correct data, then you have the problem you are encountering.

Since you are using a custom board, you should read your specs or ask your HW people about the
correct SPD address.

> 
> I googled it but i am un able to rectify it..
> Please resole ASAP
> manukumar
> 

All the best,
RgC
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  reply	other threads:[~2012-10-25 13:26 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1337677828.2382.30.camel@Manukumar>
2012-05-22 14:15 ` [U-Boot] Nand flash R/W,saveenv issue Marek Vasut
2012-05-22 17:56   ` Scott Wood
2012-05-23  5:56     ` Manukumar
2012-05-23  8:02       ` Wolfgang Denk
2012-05-23  8:30         ` Manukumar
2012-05-23 16:16           ` Scott Wood
2012-05-30  5:02             ` [U-Boot] problem while making kernel up Manukumar
2012-05-30 16:18               ` Scott Wood
2012-05-31  4:15                 ` Manukumar
2012-05-31 16:21                   ` Scott Wood
2012-06-01  3:58                     ` Manukumar
2012-06-01 10:10                     ` Manukumar
2012-06-01 17:15                       ` Scott Wood
2012-06-06  8:13                         ` Manukumar
2012-07-05 10:27                         ` [U-Boot] USB detection Manukumar
2012-07-05 11:45                           ` Albert ARIBAUD
2012-07-05 15:34                             ` Marek Vasut
2012-07-09  8:47                             ` Manukumar
2012-07-09 12:18                               ` Albert ARIBAUD
2012-07-10  2:17                               ` Marek Vasut
2012-07-12  6:10                                 ` Manukumar
2012-10-25 12:21                                   ` Manukumar
2012-10-25 13:26                                     ` RgC [this message]
2012-09-26 10:42                               ` [U-Boot] bootm command in U-boot Manukumar
2012-09-26 14:14                                 ` Wolfgang Denk
2012-10-03 12:24                               ` [U-Boot] Booting through nand flash with other address Manukumar
2012-10-03 15:22                                 ` Scott Wood
2012-10-04 10:18                                   ` Manukumar
2012-10-04 17:21                                     ` Scott Wood
2012-12-04 12:04                                       ` [U-Boot] access u-boot environment variables from kernel space Manukumar
2012-12-04 13:24                                         ` Yegor Yefremov
2012-12-04 16:26                                           ` Scott Wood
2012-12-04 16:35                                             ` Steve Strobel
2013-01-25  6:50                                             ` Manukumar
2013-01-25  9:22                                               ` Wolfgang Denk
2012-11-23  4:08                                   ` [U-Boot] Quer on JTAG Manukumar
2012-11-23  5:33                                     ` Wolfgang Denk
2012-09-11 12:47                       ` [U-Boot] Nand Flash Programing and Board Bring Up Manukumar
2012-09-11 14:10                         ` Marek Vasut
2012-05-23 22:45       ` [U-Boot] Nand flash R/W,saveenv issue Scott Wood

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