Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD plagnioj@jcrosoft.com --- doc/README.qemu_mips | 67 +++++++++++++++++++++++++++++++++++++++++++------ 1 files changed, 58 insertions(+), 9 deletions(-)
diff --git a/doc/README.qemu_mips b/doc/README.qemu_mips index 2a6f1cf..13c98b9 100644 --- a/doc/README.qemu_mips +++ b/doc/README.qemu_mips @@ -17,7 +17,28 @@ create image: start it: # qemu-system-mips -M mips -pflash flash -monitor null -nographic
-Ide Disk +2) Download kernel + initrd + +On ftp://ftp.denx.de/pub/contrib/Jean-Christophe_Plagniol-Villard/qemu_mips/ +you can downland + +#config to build the kernel +qemu_mips_defconfig +#patch to fix mips interupt init on 2.6.24.y kernel +qemu_mips_kernel.patch +initrd.gz +vmlinux +vmlinux.bin +System.map + +4) Generate 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 + +5) Copy uImage to Flash +# dd if=uImage bs=1k conv=notrunc seek=224 of=flash + +6) Generate Ide Disk
# dd of=ide bs=1k cout=100k if=/dev/zero
@@ -30,14 +51,12 @@ unit: sectors ide3 : start= 64260, size= 4128705, Id=83 ide4 : start= 0, size= 0, Id= 0
-# Generate 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 to Flash -# dd if=uImage bs=1k conv=notrunc seek=224 of=flash -# Copy to ide +7) Copy to ide + # dd if=uImage bs=512 conv=notrunc seek=63 of=ide
-# Generate ext2 on part 2 +8) Generate ext2 on part 2 on Copy uImage and initrd.gz + # Attached as loop device ide offset = 32130 * 512 # losetup -o 16450560 -f ide # Format as ext2 ( arg2 : nb blocks) @@ -45,10 +64,40 @@ unit: sectors # 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/ # Umount it # umount /mnt
-Now you can boot from flash, ide, ide+ext2 and tfp +9) Set Environment + +setenv rd_start 0x80800000 +setenv rd_size 2663940 +setenv kernel BFC38000 +setenv oad_addr 80500000 +setenv load_addr2 80F00000 +setenv kernel_flash BFC38000 +setenv load_addr_hello 80200000 +setenv bootargs 'root=/dev/ram0 init=/bin/sh' +setenv load_rd_ext2 'ide res; ext2load ide 0:2 ${rd_start} /boot/initrd.gz' +setenv load_rd_tftp 'tftp ${rd_start} /initrd.gz' +setenv load_kernel_hda 'ide res; diskboot ${load_addr} 0:2' +setenv load_kernel_ext2 'ide res; ext2load ide 0:2 ${load_addr} /boot/uImage' +setenv load_kernel_tftp 'tftp ${load_addr} /qemu_mips/uImage' +setenv boot_ext2_ext2 'run load_rd_ext2; run load_kernel_ext2; run addmisc; bootm ${load_addr}' +setenv boot_ext2_flash 'run load_rd_ext2; run addmisc; bootm ${kernel_flash}' +setenv boot_ext2_hda 'run load_rd_ext2; run load_kernel_hda; run addmisc; bootm ${load_addr}' +setenv boot_ext2_tftp 'run load_rd_ext2; run load_kernel_tftp; run addmisc; bootm ${load_addr}' +setenv boot_tftp_hda 'run load_rd_tftp; run load_kernel_hda; run addmisc; bootm ${load_addr}' +setenv boot_tftp_ext2 'run load_rd_tftp; run load_kernel_ext2; run addmisc; bootm ${load_addr}' +setenv boot_tftp_flash 'run load_rd_tftp; run addmisc; bootm ${kernel_flash}' +setenv boot_tftp_tftp 'run load_rd_tftp; run load_kernel_tftp; run addmisc; bootm ${load_addr}' +setenv load_hello_tftp 'tftp ${load_addr_hello} /examples/hello_world.bin' +setenv go_tftp 'run load_hello_tftp; go ${load_addr_hello}' +setenv addmisc 'setenv bootargs ${bootargs} console=ttyS0,${baudrate} rd_start=${rd_start} rd_size=${rd_size} ethaddr=${ethaddr}' +setenv bootcmd 'run boot_tftp_flash' + +10) Now you can boot from flash, ide, ide+ext2 and tfp
# qemu-system-mips -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide
@@ -64,7 +113,7 @@ in an other console you start gdb 1) Debugging of U-Boot Before Relocation
Before relocation, the addresses in the ELF file can be used without any problems -buy connecting to the gdb server localhost:1234 +by connecting to the gdb server localhost:1234
# mipsel-unknown-linux-gnu-gdb u-boot GNU gdb 6.6