mips: lantiq: copy built-in DTB out of init section (10fbdaab) · Commits · 戴 / test

The existing code is buggy because built-in DTBs are in init memory. Fix this by using the 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>

arch/mips/lantiq/prom.c

+1 −12

Original line number	Diff line number	Diff line
		@@ -76,18 +76,7 @@ void __init plat_mem_setup(void)

		void __init device_tree_init(void)
		{
		unsigned long base, size;

		if (!initial_boot_params)
		return;

		base = virt_to_phys((void *)initial_boot_params);
		size = be32_to_cpu(initial_boot_params->totalsize);

		/* Before we do anything, lets reserve the dt blob */
		reserve_bootmem(base, size, BOOTMEM_DEFAULT);

		unflatten_device_tree();
		unflatten_and_copy_device_tree();
		}

		void __init prom_init(void)

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