| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2014 Marvell |
| * |
| * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> |
| * Gregory Clement <gregory.clement@free-electrons.com> |
| */ |
| |
| #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) |
