76 lines
2.0 KiB
ArmAsm
76 lines
2.0 KiB
ArmAsm
|
/*
|
||
|
|
* Copyright (C) 2014 Marvell
|
||
|
|
*
|
||
|
|
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
||
|
|
* Gregory Clement <gregory.clement@free-electrons.com>
|
||
|
|
*
|
||
|
|
* This file is licensed under the terms of the GNU General Public
|
||
|
|
* License version 2. This program is licensed "as is" without any
|
||
|
|
* warranty of any kind, whether express or implied.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/linkage.h>
|
||
|
|
#include <asm/assembler.h>
|
||
|
|
|
||
|
|
|
||
|
|
ENTRY(armada_38x_scu_power_up)
|
||
|
|
mrc p15, 4, r1, c15, c0 @ get SCU base address
|
||
|
|
orr r1, r1, #0x8 @ SCU CPU Power Status Register
|
||
|
|
mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID
|
||
|
|
and r0, r0, #15
|
||
|
|
add r1, r1, r0
|
||
|
|
mov r0, #0x0
|
||
|
|
strb r0, [r1] @ switch SCU power state to Normal mode
|
||
|
|
ret lr
|
||
|
|
ENDPROC(armada_38x_scu_power_up)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is the entry point through which CPUs exiting cpuidle deep
|
||
|
|
* idle state are going.
|
||
|
|
*/
|
||
|
|
ENTRY(armada_370_xp_cpu_resume)
|
||
|
|
ARM_BE8(setend be ) @ go BE8 if entered LE
|
||
|
|
/*
|
||
|
|
* Disable the MMU that might have been enabled in BootROM if
|
||
|
|
* this code is used in the resume path of a suspend/resume
|
||
|
|
* cycle.
|
||
|
|
*/
|
||
|
|
mrc p15, 0, r1, c1, c0, 0
|
||
|
|
bic r1, #1
|
||
|
|
mcr p15, 0, r1, c1, c0, 0
|
||
|
|
bl ll_add_cpu_to_smp_group
|
||
|
|
bl ll_enable_coherency
|
||
|
|
b cpu_resume
|
||
|
|
ENDPROC(armada_370_xp_cpu_resume)
|
||
|
|
|
||
|
|
ENTRY(armada_38x_cpu_resume)
|
||
|
|
/* do we need it for Armada 38x*/
|
||
|
|
ARM_BE8(setend be ) @ go BE8 if entered LE
|
||
|
|
bl v7_invalidate_l1
|
||
|
|
bl armada_38x_scu_power_up
|
||
|
|
b cpu_resume
|
||
|
|
ENDPROC(armada_38x_cpu_resume)
|
||
|
|
|
||
|
|
.global mvebu_boot_wa_start
|
||
|
|
.global mvebu_boot_wa_end
|
||
|
|
|
||
|
|
/* The following code will be executed from SRAM */
|
||
|
|
ENTRY(mvebu_boot_wa_start)
|
||
|
|
mvebu_boot_wa_start:
|
||
|
|
ARM_BE8(setend be)
|
||
|
|
adr r0, 1f
|
||
|
|
ldr r0, [r0] @ load the address of the
|
||
|
|
@ resume register
|
||
|
|
ldr r0, [r0] @ load the value in the
|
||
|
|
@ resume register
|
||
|
|
ARM_BE8(rev r0, r0) @ the value is stored LE
|
||
|
|
mov pc, r0 @ jump to this value
|
||
|
|
/*
|
||
|
|
* the last word of this piece of code will be filled by the physical
|
||
|
|
* address of the boot address register just after being copied in SRAM
|
||
|
|
*/
|
||
|
|
1:
|
||
|
|
.long .
|
||
|
|
mvebu_boot_wa_end:
|
||
|
|
ENDPROC(mvebu_boot_wa_end)
|