u-boot/arch/arm/mach-tegra/lowlevel_init.S
Tom Warren 7aaa5a60ce ARM: Tegra210: Add support to common Tegra source/config files
Derived from Tegra124, modified as appropriate during T210
board bringup. Cleaned up debug statements to conserve
string space, too. This also adds misc 64-bit changes
from Thierry Reding/Stephen Warren.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2015-07-28 10:30:20 -07:00

40 lines
663 B
ArmAsm

/*
* SoC-specific setup info
*
* (C) Copyright 2010,2011
* NVIDIA Corporation <www.nvidia.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <linux/linkage.h>
#ifdef CONFIG_ARM64
.align 5
ENTRY(reset_cpu)
/* get address for global reset register */
ldr x1, =PRM_RSTCTRL
ldr w3, [x1]
/* force reset */
orr w3, w3, #0x10
str w3, [x1]
mov w0, w0
1:
b 1b
ENDPROC(reset_cpu)
#else
.align 5
ENTRY(reset_cpu)
ldr r1, rstctl @ get addr for global reset
@ reg
ldr r3, [r1]
orr r3, r3, #0x10
str r3, [r1] @ force reset
mov r0, r0
_loop_forever:
b _loop_forever
rstctl:
.word PRM_RSTCTRL
ENDPROC(reset_cpu)
#endif