diff options
Diffstat (limited to 'arch/arm/boards/qemu-virt/board.c')
| -rw-r--r-- | arch/arm/boards/qemu-virt/board.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/boards/qemu-virt/board.c b/arch/arm/boards/qemu-virt/board.c index 3aeea1a017..9d8c90eb5b 100644 --- a/arch/arm/boards/qemu-virt/board.c +++ b/arch/arm/boards/qemu-virt/board.c @@ -5,7 +5,41 @@ */ #include <common.h> #include <init.h> +#include <of.h> #include <asm/system_info.h> +#include <asm/barebox-arm.h> + +extern char __dtb_overlay_of_flash_start[]; + +static int replace_dtb(void) { + struct device_node *overlay; + void *fdt; + struct device_node *root; + + fdt = barebox_arm_boot_dtb(); + if (fdt) + pr_debug("using boarddata provided DTB\n"); + + if (!fdt) { + pr_debug("No DTB found\n"); + return 0; + } + + root = of_unflatten_dtb(fdt); + + if (!of_device_is_compatible(root, "linux,dummy-virt")) { + of_delete_node(root); + return 0; + } + + overlay = of_unflatten_dtb(__dtb_overlay_of_flash_start); + of_overlay_apply_tree(root, overlay); + barebox_register_of(root); + + return 0; +} + +pure_initcall(replace_dtb); static int virt_probe(struct device_d *dev) { |