Vexpress and the Qemu ARM Virt platform have a memory-mapped flash starting at physical address 0. This clashes with the zero page used to trap NULL pointer accesses when MMU is enabled. For this reason, vexpress_defconfig disabled the MMU. vexpress_defconfig was removed in favor of multi_v7_defconfig, but the latter enables the MMU, breaking the ability to test barebox environment and state out of the box. Patches to resolve that are being upstreamed, so until they are, let's reinstate vexpress_defconfig. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- Documentation/user/virtio.rst | 2 +- arch/arm/configs/vexpress_defconfig | 76 +++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+), 1 deletion(-) create mode 100644 arch/arm/configs/vexpress_defconfig diff --git a/Documentation/user/virtio.rst b/Documentation/user/virtio.rst index a8624649f473..d944fa4821b1 100644 --- a/Documentation/user/virtio.rst +++ b/Documentation/user/virtio.rst @@ -44,7 +44,7 @@ Building barebox for QEMU targets is no different from others. For example, we can do the following with the CROSS_COMPILE environment variable being properly set to a working toolchain for ARM:: - $ make multi_v7_defconfig + $ make vexpress_defconfig $ make Testing diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig new file mode 100644 index 000000000000..d58ca7ebd0ec --- /dev/null +++ b/arch/arm/configs/vexpress_defconfig @@ -0,0 +1,76 @@ +CONFIG_ARCH_VEXPRESS=y +CONFIG_MACH_VEXPRESS=y +CONFIG_MACH_VIRT=y +CONFIG_AEABI=y +CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y +CONFIG_MALLOC_SIZE=0x0 +CONFIG_MALLOC_TLSF=y +CONFIG_KALLSYMS=y +CONFIG_PROMPT="vexpress: " +CONFIG_HUSH_FANCY_PROMPT=y +CONFIG_CMDLINE_EDITING=y +CONFIG_AUTO_COMPLETE=y +CONFIG_MENU=y +CONFIG_BOOTM_SHOW_TYPE=y +CONFIG_BOOTM_VERBOSE=y +CONFIG_BOOTM_INITRD=y +CONFIG_CONSOLE_ACTIVATE_ALL=y +CONFIG_CONSOLE_ALLOW_COLOR=y +CONFIG_PARTITION_DISK_EFI=y +CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y +CONFIG_CMD_DMESG=y +CONFIG_LONGHELP=y +CONFIG_CMD_IOMEM=y +CONFIG_CMD_MEMINFO=y +# CONFIG_CMD_BOOTU is not set +CONFIG_CMD_GO=y +CONFIG_CMD_LOADB=y +CONFIG_CMD_RESET=y +CONFIG_CMD_UIMAGE=y +CONFIG_CMD_PARTITION=y +CONFIG_CMD_EXPORT=y +CONFIG_CMD_PRINTENV=y +CONFIG_CMD_SAVEENV=y +CONFIG_CMD_FILETYPE=y +CONFIG_CMD_UNCOMPRESS=y +CONFIG_CMD_SLEEP=y +CONFIG_CMD_DHCP=y +CONFIG_CMD_PING=y +CONFIG_CMD_TFTP=y +CONFIG_CMD_ECHO_E=y +CONFIG_CMD_EDIT=y +CONFIG_CMD_LOGIN=y +CONFIG_CMD_MENU=y +CONFIG_CMD_MENU_MANAGEMENT=y +CONFIG_CMD_PASSWD=y +CONFIG_CMD_READLINE=y +CONFIG_CMD_TIMEOUT=y +CONFIG_CMD_CRC=y +CONFIG_CMD_CRC_CMP=y +CONFIG_CMD_CLK=y +CONFIG_CMD_DETECT=y +CONFIG_CMD_POWEROFF=y +CONFIG_CMD_OFTREE=y +CONFIG_NET=y +CONFIG_NET_NFS=y +CONFIG_NET_NETCONSOLE=y +CONFIG_OF_BAREBOX_DRIVERS=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_VIRTIO_CONSOLE=y +CONFIG_DRIVER_NET_SMC91111=y +# CONFIG_SPI is not set +CONFIG_MTD=y +CONFIG_MTD_CONCAT=y +CONFIG_DRIVER_CFI=y +CONFIG_VIRTIO_BLK=y +CONFIG_MCI=y +CONFIG_MCI_MMCI=y +CONFIG_HWRNG=y +CONFIG_HW_RANDOM_VIRTIO=y +# CONFIG_PINCTRL is not set +CONFIG_VIRTIO_MMIO=y +CONFIG_FS_EXT4=y +CONFIG_FS_TFTP=y +CONFIG_FS_FAT=y +CONFIG_DIGEST_SHA1_GENERIC=y +CONFIG_DIGEST_SHA256_GENERIC=y -- 2.39.2
