diff options
| author | Rob Herring <robh@kernel.org> | 2014-04-02 17:45:06 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2014-04-30 00:55:53 -0500 |
| commit | 8c97cec99033005cf1ede48a7b351e48a723749a (patch) | |
| tree | 7a23d26671a91e8b392f88cd6bae660f3b643faf /arch/mips/cavium-octeon | |
| parent | a798c10faf62a505d24e5f6213fbaf904a39623f (diff) | |
mips: octeon: convert to use unflatten_and_copy_device_tree
The octeon FDT code can be simplified by using
unflatten_and_copy_device_tree function. This removes all accesses to
FDT header data by the arch code.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Tested-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'arch/mips/cavium-octeon')
| -rw-r--r-- | arch/mips/cavium-octeon/setup.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index 331b837cec57..f1bec00d5a85 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -1053,36 +1053,26 @@ void prom_free_prom_memory(void) int octeon_prune_device_tree(void); extern const char __dtb_octeon_3xxx_begin; -extern const char __dtb_octeon_3xxx_end; extern const char __dtb_octeon_68xx_begin; -extern const char __dtb_octeon_68xx_end; void __init device_tree_init(void) { - int dt_size; - struct boot_param_header *fdt; + const void *fdt; bool do_prune; 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."); - dt_size = be32_to_cpu(fdt->totalsize); do_prune = false; } else if (OCTEON_IS_MODEL(OCTEON_CN68XX)) { - fdt = (struct boot_param_header *)&__dtb_octeon_68xx_begin; - dt_size = &__dtb_octeon_68xx_end - &__dtb_octeon_68xx_begin; + fdt = &__dtb_octeon_68xx_begin; do_prune = true; } else { - fdt = (struct boot_param_header *)&__dtb_octeon_3xxx_begin; - dt_size = &__dtb_octeon_3xxx_end - &__dtb_octeon_3xxx_begin; + fdt = &__dtb_octeon_3xxx_begin; do_prune = true; } - /* Copy the default tree from init memory. */ - initial_boot_params = early_init_dt_alloc_memory_arch(dt_size, 8); - if (initial_boot_params == NULL) - panic("Could not allocate initial_boot_params"); - memcpy(initial_boot_params, fdt, dt_size); + initial_boot_params = (void *)fdt; if (do_prune) { octeon_prune_device_tree(); @@ -1090,7 +1080,7 @@ void __init device_tree_init(void) } else { pr_info("Using passed Device Tree.\n"); } - unflatten_device_tree(); + unflatten_and_copy_device_tree(); } static int __initdata disable_octeon_edac_p; |