vm-kernel

1. u-boot and linux kernel can boot from mmc image
2. Because twl4030 emulation is not complete, mmc device can not be found in linux kernel.
Next step:
1. twl4030 emulation. Big effort is needed.
2. dss/dma emulation
3. usb

Qemu currently supports nand flash emulation in hw/nand.c. But it is for spi flash and it's not ready for big page nand flash, 2k page nand flash for example. I add the big page nand flash emulation to it, but it has some bugs. When I boots jffs2 rootfs from qemu-omap, some error messages appear.
<4>mtd->read(0x1f9f4 [...]

I meet a strange problem when doing MMC emulation. The x-loader code is downloaded from http://beagleboard.googlecode.com/files/x-load_beagle_revb.tar.gz.
In function mmc_send_cmd(cpu/omap3/mmc.c)
145 OMAP_HSMMC_BLK = BLEN_512BYTESLEN | NBLK_STPCNT;
146 OMAP_HSMMC_STAT = 0xFFFFFFFF;
147 OMAP_HSMMC_ARG = arg;
148 [...]

If you have issues when using qemu-omap3, please post it on issues page of qemu-omap3 on googlecode. A google groups of qemu-omap3 is also available. Thanks.

Hi everyone, a good news for you. Linux in running successfully on qemu-omap3. Following is the screenshot.

However, MMC/USB/audio/LCD display/keyboard emulation are not ok . I will work on it.
In the following I will give you some informations of how to run qemu-omap3.
1. checkout qemu-omap3 from svn. Tag v0.01 is working.
svn checkout http://qemu-omap3.googlecode.com/svn/tags/v0.01 qemu-omap3
Or you can [...]

Working on qmeu-omap3. A starange problem. If I use the kernel image downloaded from http://beagleboard.googlecode.com/files/uImage_OTG, some kernel boot informations can be displayed in uart3. But when I use the kernel source from linux omap git and build it by myself, there are NO linux kernel boot informations at all.
Linux kernel uses printk to output informations [...]

I use qemu-omap3 to boot linux kernel from nand. The linux image is downloaded from http://beagleboard.googlecode.com/files/uImage_OTG.

OMAP3 beagleboard.org #
OMAP3 beagleboard.org # nand read 0x80000000 0x280000 0x400000
NAND read: device 0 offset 0x280000, size 0x400000
4194304 bytes read: ERROR
OMAP3 beagleboard.org # bootm 0x80000000
## Booting kernel from Legacy Image at 80000000 ...
Image Name: Linux-2.6.22.18-omap3
[...]

Good news. LCD is working in qemu-omap3
Beagle board has an DVI transmitter TFP 410 and it outputs ditigal signal to LCD panel which has DVI connector. However, we do not care TFP 410 because it is just a pipe for LCD output data. What we care about is the LCD output data itself.
According to the [...]