From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andre Schwarz Date: Tue, 25 Mar 2008 21:25:45 +0100 Subject: [U-Boot-Users] DDR-II @ MPC8343A In-Reply-To: <20080325145912.6309b661.kim.phillips@freescale.com> References: <47E9382F.40305@matrix-vision.de> <20080325131102.35e5690d.kim.phillips@freescale.com> <47E95575.8050906@matrix-vision.de> <20080325145912.6309b661.kim.phillips@freescale.com> Message-ID: <47E95FC9.4030208@matrix-vision.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Kim Phillips schrieb: > On Tue, 25 Mar 2008 20:41:41 +0100 > Andre Schwarz wrote: > > >> Kim Phillips schrieb: >> >>> On Tue, 25 Mar 2008 18:36:47 +0100 >>> Andre Schwarz wrote: >>> >>>> As far as I can see there are only DDR-I boards from Freescale. >>>> >>>> >>>> >>> The MDS can do ddr2: >>> >>> U-Boot 1.3.2-00097-gbc508d1 (Mar 25 2008 - 10:47:17) MPC83XX >>> >>> Reset Status: Software Hard, External/Internal Soft, External/Internal Hard >>> >>> CPU: e300c1, MPC8349E, Rev: 30 at 528 MHz, CSB: 264 MHz >>> Board: Freescale MPC8349EMDS >>> I2C: ready >>> SPI: ready >>> DRAM: 256 MB (DDR2, 64-bit, ECC on) >>> ... >>> >>> >>> >> Hmmm ... I get : >> >> U-Boot 1.3.2-00075-gc5f497a-dirty (Mar 25 2008 - 19:55:00) MPC83XX >> >> Reset Status: Check Stop, External/Internal Soft, External/Internal Hard >> >> CPU: e300c1, MPC8343, Rev: 31 at 399.999 MHz, CSB: 266 MHz >> Board: Matrix Vision mvBlueLYNX-M7 >> I2C: ready >> SPI: ready >> DRAM: cs0_bnds = 0x0000000f >> cs0_config = 0x80844102 >> DDR:bar=0x00000000 >> DDR:ar=0x8000001b >> 256 MB >> >> >> It's a 32-Bit DDR-II without ECC. >> 2 Chips are soldered to CS0, i.e. no EPROM present. >> >> Since I expect something like "(DDR2, 32-Bit, ECC off)" and nothing >> happens there is obviously something wrong with my memory setup. >> Is this reasonable ? >> > > sounds like memory isn't being configured correctly. Board specific? > Having a closer look to the boards show that I'm currently using 2 Micron MT47H256M8HG-3 with 2GBit each yielding a total of 512MByte DDR-II memory .... this is sad :-( Regarding to part list there should have been 1GBit Elpida chips on it. I've seen things like this in mpc8349emds code : #if (CFG_DDR_SIZE != 256) #warning Currenly any ddr size other than 256 is not supported #endif Is this reasonable ? Why ? > >> Or am I simply missing a board specific "board_add_ram_info" ? >> > > you can do that if you really, really, really want to see the "(DDR2.." > string, but it's optional. > > I don't want to see it but to understand where it comes from. >> Am I assuming right that your info string "(DDR2, 64-bit, ECC on)" comes >> from spd_sdram ? >> > > yes. > > Kim > regards, Andre MATRIX VISION GmbH, Talstra?e 16, DE-71570 Oppenweiler - Registergericht: Amtsgericht Stuttgart, HRB 271090 Gesch?ftsf?hrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.denx.de/pipermail/u-boot/attachments/20080325/debcfe27/attachment.htm