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| author | Antony Pavlov <antonynpavlov@gmail.com> | 2014-10-10 00:08:57 +0400 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-10-10 08:37:31 +0200 |
| commit | 8ce2aba5c51e27da3dcb80825682b3aba3c3b627 (patch) | |
| tree | 9b5cf81a9e0737906822cb646898cf5828281f56 /Documentation | |
| parent | 4764384549a747a8ed70037c6fed5b32f61c7e41 (diff) | |
| download | barebox-8ce2aba5c51e27da3dcb80825682b3aba3c3b627.tar.gz barebox-8ce2aba5c51e27da3dcb80825682b3aba3c3b627.tar.xz | |
Documentation: mips: add little-endian qemu-malta HOWTO
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/boards/mips/qemu-malta.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/boards/mips/qemu-malta.rst b/Documentation/boards/mips/qemu-malta.rst index be89ae3d55..22da600615 100644 --- a/Documentation/boards/mips/qemu-malta.rst +++ b/Documentation/boards/mips/qemu-malta.rst @@ -1,6 +1,9 @@ QEMU Malta ========== +Big-endian mode +--------------- + QEMU run string:: qemu-system-mips -nodefaults -M malta -m 256 \ @@ -11,6 +14,27 @@ Also you can use GXemul:: gxemul -Q -x -e maltabe -M 256 0xbfc00000:barebox-flash-image + +Little-endian mode +------------------ + +Running little-endian Malta is a bit tricky. +In little-endian mode the 32bit words in the boot flash image are swapped, +a neat trick which allows bi-endian firmware. + +You have to swap words of ``zbarebox.bin`` image, e.g.:: + + echo arch/mips/pbl/zbarebox.bin \ + | cpio --create \ + | cpio --extract --swap --unconditional + +QEMU run string:: + + qemu-system-mipsel -nodefaults -M malta -m 256 \ + -nographic -serial stdio -monitor null \ + -bios barebox-flash-image + + Links ----- |