board: add qemu coldfire support
Add kernel config and defconfig for Qemu Coldfire. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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board/qemu/m68k-mcf5208/linux-4.5.config
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board/qemu/m68k-mcf5208/linux-4.5.config
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CONFIG_M68K=y
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CONFIG_COLDFIRE=y
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# CONFIG_MMU is not set
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CONFIG_M520x=y
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CONFIG_CLOCK_SET=y
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CONFIG_CLOCK_FREQ=66666666
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CONFIG_CLOCK_DIV=1
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CONFIG_M5208EVB=y
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CONFIG_FREESCALE=y
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CONFIG_RAMBASE=0x40000000
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CONFIG_RAMSIZE=0x0
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CONFIG_VECTORBASE=0x40000000
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CONFIG_KERNELBASE=0x40020000
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CONFIG_4KSTACKS=y
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CONFIG_RAMKERNEL=y
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CONFIG_BINFMT_FLAT=y
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CONFIG_SERIAL_MCF=y
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CONFIG_SERIAL_MCF_BAUDRATE=115200
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CONFIG_SERIAL_MCF_CONSOLE=y
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CONFIG_BOOTPARAM=y
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CONFIG_BOOTPARAM_STRING="console=ttyS0,115200"
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board/qemu/m68k-mcf5208/readme.txt
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board/qemu/m68k-mcf5208/readme.txt
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Run the emulation with:
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qemu-system-m68k -M mcf5208evb -cpu m5208 -kernel output/images/vmlinux -nographic
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The login prompt will appear in the terminal that started Qemu.
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Tested with QEMU 2.5.0.
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configs/qemu_m68k_mcf5208_defconfig
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configs/qemu_m68k_mcf5208_defconfig
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# Architecture
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BR2_m68k=y
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BR2_m68k_cf5208=y
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# System
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BR2_SYSTEM_DHCP="eth0"
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# Filesystem
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BR2_TARGET_ROOTFS_INITRAMFS=y
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# BR2_TARGET_ROOTFS_TAR is not set
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# Linux headers same as kernel, a 4.5 series
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BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_5=y
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# Kernel
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.5"
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BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/m68k-mcf5208/linux-4.5.config"
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BR2_LINUX_KERNEL_VMLINUX=y
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# Serial port config
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BR2_TARGET_GENERIC_GETTY=y
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BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
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# use minimal busybox with hush
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BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config"
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# mdev does not work correctly
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BR2_ROOTFS_DEVICE_CREATION_STATIC=y
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