Both u-boot and the kernel are compiled with Soft ECC. Thanks, Itay.
On 8/3/07, Jörg Reiling <[EMAIL PROTECTED]> wrote: > > Hi Itlay, > > > > good to know that it works, so I will deeper investigate. > > > > One question...how do you compiled u-boot? With Soft- or HW-ECC? > > > > Thx > > Jörg > > > > -----Ursprüngliche Nachricht----- > *Von:* Itay Kirshenbaum [mailto:[EMAIL PROTECTED] > *Gesendet:* Freitag, 3. August 2007 14:28 > *An:* Jörg Reiling; Dirk Behme; Ivan Tonchev > *Cc:* davinci-linux-open-source@linux.davincidsp.com > *Betreff:* Re: U-Boot-1.2.0 and NAND_Flash > > > > Hi all. > > We are now using Dirk's patch with slight modifications (mostly to remove > __udivsi3, __udivdi3 errors) to boot from a large page NAND device (Micron > MT29F8G08DAA) - So we can confirm it does work. > > However, it seems the DSP is not configured correctly, as we're getting > errors similar to the ones from the days of the DVEVM 1.10 bug. > > In addition, we've verified u-boot 1.1.3 does configure everything > correctly for our board (We do this by booting u-boot 1.1.3, loading a > u-boot 1.2.0 image from tftp, and then proceed to boot from NAND - The DSP > is fully usable in that case). > > Any idea what's missing from Ivan/Dirk's patch that can cause this? The > DSP fix from the DVEVM 1.10.1 update seems to be there, so we're a little > puzzled. > > Thanks, > Itay. > > On 8/3/07, *Jörg Reiling* < [EMAIL PROTECTED]> wrote: > > Hi Dirk & Ivan, > > first thx to your effort! > I found some time to test the patches on a DVEVM-system...sorry to say, > but > no success. NAND driver complains about ECC when trying to load the > kernel. > > What i Did: > > - erase complete NAND with dvflasher > > - compiled u-boot1.2.0 (included Dirks/Ivan patches) WITHOUT NAND_ECC_HW > and > flashed it with dvflasher > > - build kernel (latest download version form TI update side, no stuff from > mvzone) with MTD-support; CONFIG_NAND_FLASH_HW_ECC is defined, debug is > enabled > > - download kernel via tftp and start kernel from u-boot > > - NAND flash is detected: > [EMAIL PROTECTED]:~# cat /proc/mtd > dev: size erasesize name > mtd0: 00040000 00004000 "bootloader" > mtd1: 00020000 00004000 "params" > mtd2: 00400000 00004000 "kernel" > mtd3: 03ba0000 00004000 "filesystem" > > - formatting device mtd2 > [EMAIL PROTECTED]:~# ftl_format /dev/mtd2 > Writing erase unit headers... > nand_write_ecc: to = 0x00060000, len = 68 > nand_write_ecc: Attempt to write not page aligned > data > write failed: Invalid argument > formnand_sync: called > format failed. > > - writing kernel to nand: > [EMAIL PROTECTED]:~# nandwrite -p /dev/mtd2 /opt/uImage > > - reboot target and start kernel with u-boot > davinci> nboot 0x80200000 0 0x60000 > > Loading from NAND 64MiB 1,8V 8-bit, offset 0x60000 > nand_read_ecc: Failed ECC read, page 0x00000300 > nand_read_ecc: Failed ECC read, page 0x00000300 > ** Read error > > - dumping 0x60000 shows > davinci> nand dump 0x60000 > Page 00060000 dump: > 27 05 19 56 bc 35 f5 b5 46 b1 87 d8 00 14 4f ec <- kernel's > magic > number > 80 00 80 00 80 00 80 00 30 92 40 b6 05 02 02 00 > 4c 69 6e 75 78 2d 32 2e 36 2e 31 30 5f 6d 76 6c > 34 30 31 2d 64 61 76 69 6e 63 69 5f 65 76 6d 00 > > Any ideas? > Jörg > > -----Ursprüngliche Nachricht----- > Von: Dirk Behme [mailto:[EMAIL PROTECTED] > Gesendet: Montag, 30. Juli 2007 18:48 > An: Ivan Tonchev > Cc: Philip Balister; davinci-linux-open-source@linux.davincidsp.com; Jörg > Reiling > Betreff: Re: U-Boot-1.2.0 and NAND_Flash > > Ivan Tonchev wrote: > > Hi Jörg, > > > > I have ported NAND and several other (SD, LCD) support to U-boot 1.2.0. > > I'm attaching a patch that adds: > > Many thanks for this! > > > A) basic davinci support (ported from u-boot-1.1.3) > > B) NAND support > > > > Three things that you need to pay attention: > > 1) It uses DM644x hardware ECC > > 2) It saves ECC in the format that DM644x RBL expects to read (i.e. 3 > > bytes, packed in 4 bytes per 512 bytes of data) + current implementation > > > allows it to work only for small paged devices > > 3) It uses special EMIF timings optimized for PLL1 running @ 594 MHz and > > STM 512R3A NAND flash > > > > Since 2) is incompatible with the kernel NAND driver (which uses 6 bytes > > > of ECC), and it also works only for small paged devices, you may need to > > modify > > > > nand->eccmode = NAND_ECC_SOFT; > > > > and comment out > > > > #if 0 > > nand->autooob = &nand_davinci_rbl_oobinfo_16; > > > > nand->calculate_ecc = nand_davinci_calculate_ecc; > > nand->correct_data = nand_davinci_correct_data; > > nand->enable_hwecc = nand_davinci_enable_hwecc; > > #endif > > I put an update of your patch into attachment. > > - It does the above stuff (1 & 2) and therefore makes your patch more > generic. Have a look to board/davinci/nand.c part of patch in > attachment. There, it introduces an additional #define > ENABLE_DAVINCI_NAND_HW_ECC which can be used to switch between > NAND_ECC_SOFT and NAND_ECC_HW3IN4_512 by setting this macro in this file. > > - I didn't touch (3), EMIF timing. > > - I removed tons of trailing whitespaces. Your formatting isn't the > best one ;) > > - I removed the disabling of lib_arm stuff, see below. > > - Patch cleanly applies to recent uboot git. > > > +# > ========================================================================== > > > +# MultiMedia Solutions Ltd. > > +# (c) Copyright 2007, MultiMedia Solutions Ltd. All Rights Reserved. > > +# > > +# Use of this software is controlled by the terms and conditions > found > > +# in the license agreement under which this software has been > supplied. > > +# > ========================================================================== > > Mmmh? This is no GPL? > > > diff -urNp u-boot-1.2.0-vanilla/lib_arm/Makefile > u-boot-1.2.0-davinci/lib_arm/Makefile > > --- u-boot-1.2.0-vanilla/lib_arm/Makefile 2007-01-07 > 01:13:11.000000000 +0200 > > +++ u-boot-1.2.0-davinci/lib_arm/Makefile 2007-06-13 > 21:08:56.000000000 +0300 > > @@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk > > > > LIB = $(obj)lib$(ARCH).a > > > > -SOBJS = _ashldi3.o _ashrdi3.o _divsi3.o _modsi3.o _udivsi3.o > _umodsi3.o > > +#SOBJS = _ashldi3.o _ashrdi3.o _divsi3.o _modsi3.o _udivsi3.o > _umodsi3.o > > As explained in > > > http://linux.omap.com/pipermail/davinci-linux-open-source/2007-July/003651.h > tml > > I don't think disabling this stuff is a good idea. I removed this from > the update patch in the attachment. > > With additional patch arm_floating_point_patch.txt (see attachment as > well) which is an recent version of > > > http://sourceforge.net/mailarchive/forum.php?thread_name=468D2650.10603%40rf > o.atmel.com&forum_name=u-boot-users > > recent git davinci uboot compiles and links fine for me. > Unfortunately, not target tested. > > Best regards > > Dirk > > _______________________________________________ > Davinci-linux-open-source mailing list > Davinci-linux-open-source@linux.davincidsp.com > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > > >
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