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Diffstat (limited to 'arch/powerpc/lib/bootm.c')
| -rw-r--r-- | arch/powerpc/lib/bootm.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c index 05adada..1375474 100644 --- a/arch/powerpc/lib/bootm.c +++ b/arch/powerpc/lib/bootm.c @@ -226,6 +226,24 @@ static int boot_bd_t_linux(bootm_headers_t *images) return ret; } +/* + * Verify the device tree. + * + * This function is called after all device tree fix-ups have been enacted, + * so that the final device tree can be verified. The definition of "verified" + * is up to the specific implementation. However, it generally means that the + * addresses of some of the devices in the device tree are compared with the + * actual addresses at which U-Boot has placed them. + * + * Returns 1 on success, 0 on failure. If 0 is returned, U-boot will halt the + * boot process. + */ +static int __ft_verify_fdt(void *fdt) +{ + return 1; +} +__attribute__((weak, alias("__ft_verify_fdt"))) int ft_verify_fdt(void *fdt); + static int boot_body_linux(bootm_headers_t *images) { ulong rd_len; @@ -298,6 +316,9 @@ static int boot_body_linux(bootm_headers_t *images) /* fixup the initrd now that we know where it should be */ if (*initrd_start && *initrd_end) fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1); + + if (!ft_verify_fdt(*of_flat_tree)) + return -1; } #endif /* CONFIG_OF_LIBFDT */ return 0; |