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MIPS: platform: Allow for DTB to be moved during kernel relocation

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Add plat_fdt_relocated(void*) API to allow the kernel relocation code to
update platform's information about the DTB location if the DTB had to
be moved due to being placed in a location used by the relocated kernel.

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14611/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Marcin Nowakowski
2016-11-23 14:43:47 +01:00
committed by Ralf Baechle
parent 73346081ca
commit 0063fdede6
2 changed files with 26 additions and 0 deletions
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13
arch/mips/include/asm/bootinfo.h
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@@ -164,6 +164,19 @@ static inline void plat_swiotlb_setup(void) {}
* Return: Pointer to the flattened device tree blob.
*/
extern void *plat_get_fdt(void);
#ifdef CONFIG_RELOCATABLE
/**
* plat_fdt_relocated() - Update platform's information about relocated dtb
*
* This function provides a platform-independent API to set platform's
* information about relocated DTB if it needs to be moved due to kernel
* relocation occurring at boot.
*/
void plat_fdt_relocated(void *new_location);
#endif /* CONFIG_RELOCATABLE */
#endif /* CONFIG_USE_OF */
#endif /* _ASM_BOOTINFO_H */