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Commit d66698e0 authored by Jaedon Shin's avatar Jaedon Shin Committed by Ralf Baechle
Browse files

MIPS: BMIPS: Support APPENDED_DTB 



Use appended DTB when available.

Signed-off-by: default avatarJaedon Shin <jaedon.shin@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14337/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent a2c510a2

arch/mips/bmips/setup.c

+8 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/of.h>

#include <linux/of_fdt.h>

#include <linux/of_platform.h>

#include <linux/libfdt.h>

#include <linux/smp.h>

#include <asm/addrspace.h>

#include <asm/bmips.h>
@@ -152,6 +153,8 @@ void __init plat_time_init(void) 
	mips_hpt_frequency = freq;

}



extern const char __appended_dtb;



void __init plat_mem_setup(void)

{

	void *dtb;
@@ -161,6 +164,11 @@ void __init plat_mem_setup(void) 
	ioport_resource.start = 0;

	ioport_resource.end = ~0;



#ifdef CONFIG_MIPS_ELF_APPENDED_DTB

	if (!fdt_check_header(&__appended_dtb))

		dtb = (void *)&__appended_dtb;

	else

#endif

	/* intended to somewhat resemble ARM; see Documentation/arm/Booting */

	if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)

		dtb = phys_to_virt(fw_arg2);