/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2014 Marvell
*
* Thomas Petazzoni <[email protected]>
* Gregory Clement <[email protected]>
*/
#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 p15, 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)
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)
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