From mboxrd@z Thu Jan 1 00:00:00 1970 From: Queenie Date: Sun, 17 Jun 2007 22:25:52 -0700 (PDT) Subject: [U-Boot-Users] Blank console with IXDP425 in U-boot-1.1.6 In-Reply-To: <200706121041.07399.sr@denx.de> References: <11058369.post@talk.nabble.com> <200706111313.28527.sr@denx.de> <11059014.post@talk.nabble.com> <65487840706110435r1b5fe1c7o7717e67af4c30e12@mail.gmail.com> <11073431.post@talk.nabble.com> <200706121041.07399.sr@denx.de> Message-ID: <11170146.post@talk.nabble.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Stefan, I checked the SDRAM setting and the SDRAM controller options of IXP425, the SDRAM Iam using is Winbond W981216DH-75, Iam using two such SDRAM's connected to CS0 having D0-D15 and D16-D31 datalines respectively. Hence Iam using total size of 32MB SDRAM (2 SDRAM's of 128Mbit --> 8Mx16) The SDRAM Iam using is have CL3 (CAS latency 3) accordingly I have changed by SDRAM Seetings as below /* * SDRAM settings */ #define CFG_SDR_CONFIG 0x8 #define CFG_SDR_MODE_CONFIG 0x1 How can i calcualte the CFG_SDRAM_REFRESH_CNT and the CFG_EXP_CS0? In U-boot, the values given r as below? #define CFG_SDRAM_REFRESH_CNT 0x81a #define CFG_EXP_CS0 0xbcd23c42 How can i find it for my target board? I tried with the above setting but i still could not get my console to be working :( Few questions-- 1> Why is the CFG_HZ as 3333333 ? Is this for the Bus for UART? I read its 66MHz 2> What us CONFIG_KGDB_SER_INDEX? Its now set to 2, is it connected to my serial console port? -- Queenie Stefan Roese wrote: > > On Tuesday 12 June 2007, Queenie wrote: >> Is there any way I can find out the difference between the IXDP425 board >> (development platform) and my customised board? I have the schematics >> only >> of my customised target platform. > > You should be able to get the schematics for the Intel eval board from the > Intel. If it's not available on the web-page, then you should contact your > Intel distributor/FAE. > >> From the schematics its clear that the IXP425 266MHz network processor >> uses >> the 33MHz PCI bus. The Expansion bus is connected to the Flash (Boot >> ROM). >> the SDRAM used is 4M*16*2. Serial port is connected to UART1 and MII 1 to >> the Lan port PHY. >> The physical address for Flash is (0x50000000) and SDRAM (0x00000000). > > I suspect that you have a problem either with the boot-flash setup or the > SDRAM configuration. Here the setup from the ixdp425.h config file: > > /* > * Expansion bus settings > */ > #define CFG_EXP_CS0 0xbcd23c42 > > /* > * SDRAM settings > */ > #define CFG_SDR_CONFIG 0xd > #define CFG_SDR_MODE_CONFIG 0x1 > #define CFG_SDRAM_REFRESH_CNT 0x81a > > Please check if this exactly matches your setup. If not you have to change > these values accordingly. > >> Do I have any changes in the /include/configs/ixdp425.h ? >> CFG_HZ is 3333333 currently. >> What r the files in U-boot i have to concentrate on? And what r the other >> things i have to check for considering Iam a newbie in this field. >> >> Can it be that I havent used the right cross toolchain to compile? R >> there >> some options i have to select? >> I have used arm-linux-tools-20061213.tar.gz ?? >> >> Can someone please guide me. > > I am. > > Best regards, > Stefan > > ===================================================================== > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de > ===================================================================== > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users at lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users > > -- View this message in context: http://www.nabble.com/Blank-console-with-IXDP425-in-U-boot-1.1.6-tf3900825.html#a11170146 Sent from the Uboot - Users mailing list archive at Nabble.com.