From mboxrd@z Thu Jan 1 00:00:00 1970 From: Queenie Date: Thu, 21 Jun 2007 02:43:10 -0700 (PDT) Subject: [U-Boot-Users] Blank console with IXDP425 in U-boot-1.1.6 In-Reply-To: <11170146.post@talk.nabble.com> 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> <11170146.post@talk.nabble.com> Message-ID: <11229742.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 Hello, Thanx alot for all your valuable inputs. Finally got the console working for my customised IXP422 based target board. This maybe useful for someone else trying... Bootloader: U-boot 1.1.6 with npe microcode 2.4 (IPL_ixp400NpeLibrary-2_4)from Intel Toolchain : arm-linux-tools-20061213.tar.gz Settings used r below: /* * Expansion bus settings */ #define CFG_EXP_CS0 0xbFFF3c42 /* * SDRAM settings */ #define CFG_SDR_CONFIG 0x18 #define CFG_SDR_MODE_CONFIG 0x1 #define CFG_SDRAM_REFRESH_CNT 0x81a /* * select serial console configuration */ #define CFG_IXP425_CONSOLE IXP425_UART2 One thing which i got confused was that, the Schematics of IXDP425 (Development board from Intel) mentioned the UARTs and UART0 and UART1. While the IXP42X datasheet mentions High-speed UART (C8000000) and Console UART at (C8001000) and U-boot mentions the UARTs as UART1 and UART2 Hence even though in my customed target board schematics the console is shown as connecte to UART1, in u-boot you have to choose the UART2 option as shown above. I have got the console up but my ethernet is not yet up. Now my next target is to get that working. Any tips for me :) 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? Iam using two SDRAM's 128Mbit each, 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) 3> What is PHYS_SDRAM_1_SIZE? Will it be the total SDRAM size or size of 1 SDRAM?? I tried iwth both options and didnt see any difference. Please let me know. Cheers! Queenie Queenie wrote: > > 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#a11229742 Sent from the Uboot - Users mailing list archive at Nabble.com.