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u-boot/arch/arm/mach-rmobile/lowlevel_init.S
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

71 lines
1,016 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2012 Nobuhiro Iwamatsu <nobuhiro.Iwamatsu.yj@renesas.com>
* Copyright (C) 2012 Renesas Solutions Corp.
*/
#include <config.h>
#include <linux/linkage.h>
ENTRY(lowlevel_init)
ldr r0, =MERAM_BASE
mov r1, #0x0
str r1, [r0]
mrc p15, 0, r0, c0, c0, 5
ands r0, r0, #0xF
beq lowlevel_init__
b wait_interrupt
.pool
.align 4
wait_interrupt:
#ifdef ICCICR
ldr r1, =ICCICR
mov r2, #0x0
str r2, [r1]
mov r2, #0xF0
adds r1, r1, #4 /* ICCPMR */
str r2, [r1]
ldr r1, =ICCICR
mov r2, #0x1
str r2, [r1]
#endif
wait_loop:
.long 0xE320F003 /* wfi */
ldr r2, [r1, #0xC]
str r2, [r1, #0x10]
ldr r0, =MERAM_BASE
ldr r2, [r0]
cmp r2, #0
movne pc, r2
b wait_loop
wait_loop_end:
.pool
.align 4
lowlevel_init__:
mov r0, #0x200000
loop0:
subs r0, r0, #1
bne loop0
ldr sp, MERAM_STACK
b s_init
.pool
.align 4
ENDPROC(lowlevel_init)
.ltorg
MERAM_STACK:
.word LOW_LEVEL_MERAM_STACK