brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-09-21 12:10:24 +09:00
Code Issues Projects Releases Wiki Activity

ARM: renesas: Save boot parameters passed in by ATF

Browse Source 
The ATF can pass additional information via the first four registers,
x0...x3. The R-Car Gen3 with mainline ATF, register x1 contains pointer
to a device tree with platform information. Save these registers for
future use.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Marek Vasut 2018-10-18 18:38:05 +02:00 committed by Marek Vasut
parent 118f4d4559
commit 4fa8375ffe
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm/mach-rmobile/lowlevel_init_gen3.S
View File

@ -16,6 +16,21 @@
#include <linux/linkage.h>
#include <asm/macro.h>
.align 8
.globl rcar_atf_boot_args
rcar_atf_boot_args:
.dword 0
.dword 0
.dword 0
.dword 0
ENTRY(save_boot_params)
adr x8, rcar_atf_boot_args
stp x0, x1, [x8], #16
stp x2, x3, [x8], #16
b save_boot_params_ret
ENDPROC(save_boot_params)
ENTRY(lowlevel_init)
mov x29, lr /* Save LR */