2 * Copyright (C) 2014 Marvell
4 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
5 * Gregory Clement <gregory.clement@free-electrons.com>
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/linkage.h>
13 #include <asm/assembler.h>
16 ENTRY(armada_38x_scu_power_up)
17 mrc p15, 4, r1, c15, c0 @ get SCU base address
18 orr r1, r1, #0x8 @ SCU CPU Power Status Register
19 mrc p15, 0, r0, cr0, cr0, 5 @ get the CPU ID
23 strb r0, [r1] @ switch SCU power state to Normal mode
25 ENDPROC(armada_38x_scu_power_up)
28 * This is the entry point through which CPUs exiting cpuidle deep
29 * idle state are going.
31 ENTRY(armada_370_xp_cpu_resume)
32 ARM_BE8(setend be ) @ go BE8 if entered LE
34 * Disable the MMU that might have been enabled in BootROM if
35 * this code is used in the resume path of a suspend/resume
38 mrc p15, 0, r1, c1, c0, 0
40 mcr p15, 0, r1, c1, c0, 0
41 bl ll_add_cpu_to_smp_group
42 bl ll_enable_coherency
44 ENDPROC(armada_370_xp_cpu_resume)
46 ENTRY(armada_38x_cpu_resume)
47 /* do we need it for Armada 38x*/
48 ARM_BE8(setend be ) @ go BE8 if entered LE
50 bl armada_38x_scu_power_up
52 ENDPROC(armada_38x_cpu_resume)
54 .global mvebu_boot_wa_start
55 .global mvebu_boot_wa_end
57 /* The following code will be executed from SRAM */
58 ENTRY(mvebu_boot_wa_start)
61 ldr r0, [r0] @ load the address of the
63 ldr r0, [r0] @ load the value in the
65 ARM_BE8(rev r0, r0) @ the value is stored LE
66 mov pc, r0 @ jump to this value
68 * the last word of this piece of code will be filled by the physical
69 * address of the boot address register just after being copied in SRAM
74 ENDPROC(mvebu_boot_wa_end)