diff options
| author | Aaro Koskinen <aaro.koskinen@nokia.com> | 2015-09-11 17:46:15 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-11-12 11:35:48 +0100 |
| commit | 651d19fb10fac0f1f25c028c8e46ded9fc43a640 (patch) | |
| tree | edb2cd47828d76357fdcbe66ff321611878c8340 /arch/mips | |
| parent | 87db537da4cd1bfad388511a3647bbb497d2fb61 (diff) | |
| download | lwn-651d19fb10fac0f1f25c028c8e46ded9fc43a640.tar.gz lwn-651d19fb10fac0f1f25c028c8e46ded9fc43a640.zip | |
MIPS: Octeon: Support APPENDED_DTB
Use appended DTB when available.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11115/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/cavium-octeon/setup.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index bd634259eab9..cd7101fb6227 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -1081,6 +1081,7 @@ void __init prom_free_prom_memory(void) int octeon_prune_device_tree(void); +extern const char __appended_dtb; extern const char __dtb_octeon_3xxx_begin; extern const char __dtb_octeon_68xx_begin; void __init device_tree_init(void) @@ -1088,11 +1089,19 @@ void __init device_tree_init(void) const void *fdt; bool do_prune; +#ifdef CONFIG_MIPS_ELF_APPENDED_DTB + if (!fdt_check_header(&__appended_dtb)) { + fdt = &__appended_dtb; + do_prune = false; + pr_info("Using appended Device Tree.\n"); + } else +#endif if (octeon_bootinfo->minor_version >= 3 && octeon_bootinfo->fdt_addr) { fdt = phys_to_virt(octeon_bootinfo->fdt_addr); if (fdt_check_header(fdt)) panic("Corrupt Device Tree passed to kernel."); do_prune = false; + pr_info("Using passed Device Tree.\n"); } else if (OCTEON_IS_MODEL(OCTEON_CN68XX)) { fdt = &__dtb_octeon_68xx_begin; do_prune = true; @@ -1106,8 +1115,6 @@ void __init device_tree_init(void) if (do_prune) { octeon_prune_device_tree(); pr_info("Using internal Device Tree.\n"); - } else { - pr_info("Using passed Device Tree.\n"); } unflatten_and_copy_device_tree(); } |