From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerry Van Baren Date: Fri, 19 Sep 2008 07:57:42 -0400 Subject: [U-Boot] Malformed ARP packets In-Reply-To: <4e0b9cb00809190237g4de03791nb4cdcd2a579a3e59@mail.gmail.com> References: <4e0b9cb00809180249y531d3d05r19394ce0cbf6b372@mail.gmail.com> <48D3065D.60700@gmail.com> <4e0b9cb00809190237g4de03791nb4cdcd2a579a3e59@mail.gmail.com> Message-ID: <48D393B6.4080204@ge.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Remi Lefevre wrote: > Thank you very much for your clues as I'm stuck on this for almost a week. > > [snip] >> Is this DIMM memory sticks with using SPD configuration or are the SDRAM >> chips soldered to the board? > > They are soldered. Yup, thought so. ;-) > My SDRAM is a Micron MT48LC16M16A2. My init sequence is exactly the same as > the one in "freescale/mpc8266ads/mpc8266ads.c" or "sacsng/sacsng.c" that use > MT48LC8M16A2 , but I checked it anyway. The SDRAM init sequence is odd, but hard to get wrong because it is invariant and there are plenty of working examples. > My PSDMR values have been given by another product using exactly the same > board and same HWCR configuration (PLD). But I will check them again. That is the critical issue: the PSDMR values. If all else fails, read the part number off a chip that is on your board and download the datasheet for *that* *exact* part number. Sometimes manufacturers upgrade their parts or hardware makes a "compatible" substitution and the timing is different. [snip] > Thanks, > R?mi You are welcome, gvb