Code sections should be syntax highlighted as bash. Comment lines in code should start with a hash sign ('#') but code lines should not. Most commands can be executed as normal users. Prepend those commands requiring elevated authorization with 'sudo'. dd does not have a parameter cout. sfdisk does not have a -C parameter on Debian Buster. Provide the necessary input to sfdisk. Creating a partition of length zero makes no sense.

Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- doc/board/emulation/qemu-mips.rst | 108 +++++++++++++++++------------- 1 file changed, 60 insertions(+), 48 deletions(-)

diff --git a/doc/board/emulation/qemu-mips.rst b/doc/board/emulation/qemu-mips.rst index 529a908b55..f206039f54 100644 --- a/doc/board/emulation/qemu-mips.rst +++ b/doc/board/emulation/qemu-mips.rst @@ -25,37 +25,45 @@ Example usage

Using u-boot.bin as ROM (replaces Qemu monitor):

-32 bit, big endian:: +32 bit, big endian

- # make qemu_mips - # qemu-system-mips -M mips -bios u-boot.bin -nographic +.. code-block:: bash

-32 bit, little endian:: + make qemu_mips + qemu-system-mips -M mips -bios u-boot.bin -nographic

- # make qemu_mipsel - # qemu-system-mipsel -M mips -bios u-boot.bin -nographic +32 bit, little endian

-64 bit, big endian:: +.. code-block:: bash

- # make qemu_mips64 - # qemu-system-mips64 -cpu MIPS64R2-generic -M mips -bios u-boot.bin -nographic + make qemu_mipsel + qemu-system-mipsel -M mips -bios u-boot.bin -nographic

-64 bit, little endian:: +64 bit, big endian

- # make qemu_mips64el - # qemu-system-mips64el -cpu MIPS64R2-generic -M mips -bios u-boot.bin -nographic +.. code-block:: bash + + make qemu_mips64 + qemu-system-mips64 -cpu MIPS64R2-generic -M mips -bios u-boot.bin -nographic + +64 bit, little endian + +.. code-block:: bash + + 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 +if you use a QEMU version after commit 4224

-.. code-block:: none +.. code-block:: bash

- 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 (see above): - # qemu-system-mips[64][el] [-cpu MIPS64R2-generic] -M mips -pflash flash -nographic + # 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 (see above): + qemu-system-mips[64][el] [-cpu MIPS64R2-generic] -M mips -pflash flash -nographic

Download kernel + initrd ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -75,61 +83,63 @@ you can downland:: Generate uImage ^^^^^^^^^^^^^^^

-.. code-block:: none +.. code-block:: bash

- # tools/mkimage -A mips -O linux -T kernel -C gzip -a 0x80010000 -e 0x80245650 -n "Linux 2.6.24.y" -d vmlinux.bin.gz uImage + tools/mkimage -A mips -O linux -T kernel -C gzip -a 0x80010000 -e 0x80245650 -n "Linux 2.6.24.y" -d vmlinux.bin.gz uImage

Copy uImage to Flash ^^^^^^^^^^^^^^^^^^^^

-.. code-block:: none +.. code-block:: bash

- # dd if=uImage bs=1k conv=notrunc seek=224 of=flash + dd if=uImage bs=1k conv=notrunc seek=224 of=flash

Generate Ide Disk ^^^^^^^^^^^^^^^^^

-.. code-block:: none +.. code-block:: bash

- # dd of=ide bs=1k cout=100k if=/dev/zero + dd of=ide bs=1k count=100k if=/dev/zero

- # sfdisk -C 261 -d ide - # partition table of ide + # Create partion table + sudo sfdisk ide << EOF + label: dos + label-id: 0x6fe3a999 + device: image unit: sectors - - ide1 : start= 63, size= 32067, Id=83 - ide2 : start= 32130, size= 32130, Id=83 - ide3 : start= 64260, size= 4128705, Id=83 - ide4 : start= 0, size= 0, Id= 0 + image1 : start= 63, size= 32067, Id=83 + image2 : start= 32130, size= 32130, Id=83 + image3 : start= 64260, size= 4128705, Id=83 + EOF

Copy to ide ^^^^^^^^^^^

-.. code-block:: none +.. code-block:: bash

- # dd if=uImage bs=512 conv=notrunc seek=63 of=ide + dd if=uImage bs=512 conv=notrunc seek=63 of=ide

Generate ext2 on part 2 on Copy uImage and initrd.gz ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

-.. code-block:: none +.. code-block:: bash

# Attached as loop device ide offset = 32130 * 512 - # losetup -o 16450560 -f ide + sudo losetup -o 16450560 /dev/loop0 ide # Format as ext2 ( arg2 : nb blocks) - # mke2fs /dev/loop0 16065 - # losetup -d /dev/loop0 + sudo mkfs.ext2 /dev/loop0 16065 + sudo losetup -d /dev/loop0 # Mount and copy uImage and initrd.gz to it - # mount -o loop,offset=16450560 -t ext2 ide /mnt - # mkdir /mnt/boot - # cp {initrd.gz,uImage} /mnt/boot/ + sudo mount -o loop,offset=16450560 -t ext2 ide /mnt + sudo mkdir /mnt/boot + cp {initrd.gz,uImage} /mnt/boot/ # Umount it - # umount /mnt + sudo umount /mnt

Set Environment ^^^^^^^^^^^^^^^

-.. code-block:: none +.. code-block:: bash

setenv rd_start 0x80800000 setenv rd_size 2663940 @@ -157,9 +167,11 @@ Set Environment setenv addmisc 'setenv bootargs ${bootargs} console=ttyS0,${baudrate} rd_start=${rd_start} rd_size=${rd_size} ethaddr=${ethaddr}' setenv bootcmd 'run boot_tftp_flash'

-Now you can boot from flash, ide, ide+ext2 and tfp:: +Now you can boot from flash, ide, ide+ext2 and tfp + +.. code-block:: bash

- # qemu-system-mips -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide + qemu-system-mips -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide

How to debug U-Boot @@ -168,9 +180,9 @@ How to debug U-Boot In order to debug U-Boot you need to start qemu with gdb server support (-s) and waiting the connection to start the CPU (-S)

-.. code-block:: none +.. code-block:: bash

- # qemu-system-mips -S -s -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide + qemu-system-mips -S -s -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide

in an other console you start gdb

@@ -182,7 +194,7 @@ by connecting to the gdb server localhost:1234

.. code-block:: none

- # mipsel-unknown-linux-gnu-gdb u-boot + $ mipsel-unknown-linux-gnu-gdb u-boot GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are -- 2.24.1