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| 16:46.40 | dirk2 | Who is the U-Boot MMC maintainer we can discuss http://lists.denx.de/pipermail/u-boot/2009-March/049694.html with? |
| 16:50.35 | dirk2 | Oh, sorry, wrong channel ;) |
| 17:42.22 | keesj | not uboot ! |
| 17:42.50 | dirk2 | keesj: Hi! Any Beagle OpenOCD news? |
| 17:42.52 | keesj | spent the hole day on u-boot tweaking |
| 17:43.08 | keesj | dirk2: no I am currently on-hold |
| 17:43.25 | dirk2 | keesj: time or technical issue? |
| 17:43.34 | keesj | time |
| 17:43.59 | keesj | has become Maemo council member |
| 17:44.03 | keesj | brb |
| 17:54.16 | keesj | re |
| 17:56.54 | dirk2 | keesj: Even if it's the wrong channel: Can I help you with U-Boot? |
| 18:01.29 | keesj | I am trying to make it faster booting |
| 18:02.13 | keesj | replaced uImage with a zImage and that hepled a lot. I am no trying to get a uImage with xip |
| 18:10.17 | dirk2 | I don't like xip |
| 18:11.26 | dirk2 | I never looked how U-Boot copies code from NOR to RAM. Maybe this could be optimized on ARM by load/store multiple assembly commands. |
| 18:13.21 | keesj | uboot xip is a little different from that |
| 18:14.27 | keesj | a uImage is first loaded somewhere in ram crc is performend and then a some parts are copied to theire loadable location |
| 18:15.23 | keesj | if you create a "xip" image you can load the uImage and make sure the kernel location already is the right location , that is what they kind of mean with XIP if I understand correctly |
| 18:15.57 | keesj | but to hava decent performance I needed to remove the CRC so I might as well load a zImage directly into the right location |
| 18:17.16 | keesj | If I get some more time i would like to try if it is possible to put a uncompressed kernel in a compressed uImage and try to uncompress it whils it's getting the data from the storage |
| 18:19.50 | keesj | I our case I think it's the storage that is the "slow" factor and we use MMC . but indeed I will look at the memcopy function |
| 18:20.20 | keesj | but might aswell try the uncompress if I am changing things at that level |
| 18:26.09 | keesj | off to drink ! |
| 18:36.06 | dirk2 | keesj: already tried if boot from NAND is faster than MMC? |
| 18:36.33 | dirk2 | keesj: Are you able to talk about for which platform/target you try to speed up boot? |
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| 23:48.29 | *** topic/#openjtag is this is the place to discuss bootloaders and JTAG |