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MIPS: qemu-mips: update and fix example usage in README

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By now U-Boot supports Qemu MIPS for little and big endian
as well as 32 bit and 64 bit. Update and fix the example usage
in the README to reflect this.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This commit is contained in:
Daniel Schwierzeck 2013-01-08 17:51:11 +01:00
parent 3567e4ef11
commit 2b086ce4a1
1 changed files with 21 additions and 7 deletions
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28
board/qemu-mips/README
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@ -7,7 +7,7 @@ http://www.nongnu.org/qemu/
Limitations & comments
----------------------
Supports the "-M mips" configuration of qemu: serial,NE2000,IDE.
Support is big endian only for now (or at least this is what I tested).
Supports little and big endian as well as 32 bit and 64 bit.
Derived from au1x00 with a lot of things cut out.
Supports emulated flash (patch Jean-Christophe PLAGNIOL-VILLARD) with
@ -21,19 +21,33 @@ Notes for the Qemu MIPS port
I) Example usage:
# ln -s u-boot.bin mips_bios.bin
start it:
qemu-system-mips -M mips -L . /dev/null -nographic
Using u-boot.bin as ROM (replaces Qemu monitor):
or
32 bit, big endian:
# make qemu_mips
# qemu-system-mips -M mips -bios u-boot.bin -nographic
32 bit, little endian:
# make qemu_mipsel
# qemu-system-mipsel -M mips -bios u-boot.bin -nographic
64 bit, big endian:
# make qemu_mips64
# qemu-system-mips64 -cpu MIPS64R2-generic -M mips -bios u-boot.bin -nographic
64 bit, little endian:
# make qemu_mips64el
# qemu-system-mips64el -cpu MIPS64R2-generic -M mips -bios u-boot.bin -nographic
or using u-boot.bin from emulated flash:
if you use a qemu version after commit 4224
create image:
# dd of=flash bs=1k count=4k if=/dev/zero
# dd of=flash bs=1k conv=notrunc if=u-boot.bin
start it:
# qemu-system-mips -M mips -pflash flash -monitor null -nographic
start it (see above):
# qemu-system-mips[64][el] [-cpu MIPS64R2-generic] -M mips -pflash flash -nographic
2) Download kernel + initrd