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| 15:17.21 | qwebirc90287 | rjeffries asks: what are your thoughts re: http://www.lowrisc.org/ |
| 15:43.29 | *** join/#qi-hardware paul_boddie (~paul_bodd@cm-84.215.150.4.getinternet.no) |
| 15:59.23 | paul_boddie | Anyone have any hints about running standalone programs from U-Boot on the NanoNote? |
| 16:00.25 | pcercuei | ELFs? |
| 16:02.08 | paul_boddie | The binary portions of ELFs bundled as uImages. Not sure if that's sane or not, but it works over USB boot. |
| 16:02.25 | paul_boddie | Maybe I should be using plain ELFs in uImage files. |
| 16:03.39 | paul_boddie | I think the executable launches, but if so I can't easily verify it because I need to reset the display, and I'm not sure if that's working, either. |
| 16:20.59 | paul_boddie | Binary portions should apparently work: http://www.stlinux.com/u-boot/mkimage/kernel-images |
| 16:21.46 | paul_boddie | Also: http://www.denx.de/wiki/view/DULG/HowCanICreateAnUImageFromAELFFile |
| 16:47.31 | paul_boddie | U-Boot seems to want to load the binary at 0x80600000. Sound familiar to anyone? |
| 17:09.51 | pcercuei | the Linux kernel expect to be loaded at 0x80010000 |
| 17:09.53 | pcercuei | expects |
| 17:09.57 | pcercuei | for the jz4740 at least |
| 17:14.25 | paul_boddie | I'm trying to re-use a stage 2 payload that works over USB boot. That does some relocation hacks to deal with being loaded in a different place by usbboot. |
| 17:15.08 | paul_boddie | U-Boot says "Booting kernel from Legacy Image at 80600000 ..." and then shows the image details. |
| 17:15.49 | paul_boddie | It ends with "Loading Standalone Program ... OK", then "OK", then... well, maybe it runs. ;-) |
| 17:18.01 | paul_boddie | However, if I choose load/entry addresses of 0x80600000, I get "XIP Standalone Program ... OK" and then "OK". |
| 17:18.17 | paul_boddie | (This isn't a Linux kernel, obviously.) |
| 17:20.54 | pcercuei | but what address did you compile your program for? |
| 17:49.14 | paul_boddie | I've tried 0x80000000 and 0x80010000 giving the "Loading Standalone Program" message. |
| 17:49.31 | paul_boddie | And 0x80600000 gives the "XIP Standalone Program" message. |
| 17:50.22 | paul_boddie | In other words, I've specified the load and entry addresses when running mkimage. The binary itself should be relocateable, but maybe that's my big mistake. |
| 17:51.12 | paul_boddie | I'll be back later, but I'll check the logs if you have any hints, particularly about obvious mistakes I've made. ;-) |
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