Hi ALL, I have been woking on upgrading an embedded system based on MPC8241 from 2.4.17 linux to 2.6.30 kernel. I am currently struck one point.
Here is the console output where I am struck: ================================= cpboot> bootm ## Booting image at 08000000 ... Image Name: Linux-2.6.30 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 21729342 Bytes = 21220 kB = 20 MB Load Address: 01900000 Entry Point: 01900570 Verifying Checksum ... OK Uncompressing Kernel Image ... OK Memory <- <0x0 0x10000000> (256MB) CPU clock-frequency <- 0xbebc1fe (200MHz) CPU timebase-frequency <- 0x17d783f (25MHz) CPU bus-frequency <- 0x5f5e0ff (100MHz) zImage starting: loaded at 0x01900000 (sp: 0x0fdc3a08) Allocating 0x165ca04 bytes for kernel ... gunzipping (0x00000000 <- 0x0190c000:0x02f58efc)...done 0x1637b54 bytes Linux/PowerPC load: Finalizing device tree... flat tree at 0x2f65300 <== Beyond this point no output is available. (The size of image is 20MB because ramfs embedded inside the image) ================================== Here are the steps I have taken till now. 1) Defined platform.dts file for my platform. Since I am using MPC8241, I have taken cuboot-824x.c. Is this file correct. Do I need to define my own cuboot-*.c file ? 2)Built cuImage and loaded it into memory. I am not seeing any output once control passes from wrapper to kernel. As you can see from logs mentioned above. While going through mail achieves I found two possible reasons for this 1) Wrong entries inside dts file I am sure serial attributes are correctly defined inside the file. Also it works for wrapper. It should work for linux also. 2) PPCboot not providing information. I have built cuImage . Shouldn't kernel be getting its attributes from dtb file rather then depending on bd_info structure. I cannot upgrade to uboot. Is there some way I can make my board come up? Thanks in advance, Vijay
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