mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 13:33:40 +00:00
68 lines
1.2 KiB
ArmAsm
68 lines
1.2 KiB
ArmAsm
|
/* SPDX-License-Identifier: GPL-2.0+ */
|
||
|
|
/*
|
||
|
|
* Copyright 2018 NXP
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <config.h>
|
||
|
|
#include <linux/linkage.h>
|
||
|
|
|
||
|
|
#include <asm/armv7.h>
|
||
|
|
#include <asm/psci.h>
|
||
|
|
|
||
|
|
.pushsection ._secure.text, "ax"
|
||
|
|
|
||
|
|
.arch_extension sec
|
||
|
|
|
||
|
|
.globl v7_invalidate_l1
|
||
|
|
v7_invalidate_l1:
|
||
|
|
mov r0, #0
|
||
|
|
mcr p15, 2, r0, c0, c0, 0
|
||
|
|
mrc p15, 1, r0, c0, c0, 0
|
||
|
|
|
||
|
|
movw r1, #0x7fff
|
||
|
|
and r2, r1, r0, lsr #13
|
||
|
|
|
||
|
|
movw r1, #0x3ff
|
||
|
|
|
||
|
|
and r3, r1, r0, lsr #3 @ NumWays - 1
|
||
|
|
add r2, r2, #1 @ NumSets
|
||
|
|
|
||
|
|
and r0, r0, #0x7
|
||
|
|
add r0, r0, #4 @ SetShift
|
||
|
|
|
||
|
|
clz r1, r3 @ WayShift
|
||
|
|
add r4, r3, #1 @ NumWays
|
||
|
|
1:
|
||
|
|
sub r2, r2, #1 @ NumSets--
|
||
|
|
mov r3, r4 @ Temp = NumWays
|
||
|
|
2:
|
||
|
|
subs r3, r3, #1 @ Temp--
|
||
|
|
mov r5, r3, lsl r1
|
||
|
|
mov r6, r2, lsl r0
|
||
|
|
orr r5, r5, r6 @ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
|
||
|
|
mcr p15, 0, r5, c7, c6, 2
|
||
|
|
bgt 2b
|
||
|
|
cmp r2, #0
|
||
|
|
bgt 1b
|
||
|
|
dsb st
|
||
|
|
isb
|
||
|
|
mov pc, lr
|
||
|
|
|
||
|
|
.globl psci_system_resume
|
||
|
|
psci_system_resume:
|
||
|
|
mov sp, r0
|
||
|
|
|
||
|
|
/* invalidate L1 I-cache first */
|
||
|
|
mov r6, #0x0
|
||
|
|
mcr p15, 0, r6, c7, c5, 0
|
||
|
|
mcr p15, 0, r6, c7, c5, 6
|
||
|
|
/* enable the Icache and branch prediction */
|
||
|
|
mov r6, #0x1800
|
||
|
|
mcr p15, 0, r6, c1, c0, 0
|
||
|
|
isb
|
||
|
|
|
||
|
|
bl v7_invalidate_l1
|
||
|
|
b imx_system_resume
|
||
|
|
|
||
|
|
.popsection
|