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Jiafei Panf6954b12021-09-26 11:51:42 +08001/*
2 * Copyright 2018-2021 NXP
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <arch.h>
8#include <asm_macros.S>
9
10#include <platform_def.h>
11
12 .globl plat_secondary_cold_boot_setup
13 .globl plat_is_my_cpu_primary
14 .globl plat_reset_handler
15 .globl platform_mem_init
16
17func platform_mem1_init
18 ret
19endfunc platform_mem1_init
20
21func platform_mem_init
22 ret
23endfunc platform_mem_init
24
25func apply_platform_errata
26 ret
27endfunc apply_platform_errata
28
29func plat_reset_handler
30 mov x29, x30
31 bl apply_platform_errata
32
33#if defined(IMAGE_BL31)
34 ldr x0, =POLICY_SMMU_PAGESZ_64K
35 cbz x0, 1f
36 /* Set the SMMU page size in the sACR register */
37 bl _set_smmu_pagesz_64
38#endif
391:
40 mov x30, x29
41 ret
42endfunc plat_reset_handler
43
44/*
45 * void plat_secondary_cold_boot_setup (void);
46 *
47 * This function performs any platform specific actions
48 * needed for a secondary cpu after a cold reset e.g
49 * mark the cpu's presence, mechanism to place it in a
50 * holding pen etc.
51 */
52func plat_secondary_cold_boot_setup
53 /* ls1043a does not do cold boot for secondary CPU */
54cb_panic:
55 b cb_panic
56endfunc plat_secondary_cold_boot_setup
57
58/*
59 * unsigned int plat_is_my_cpu_primary (void);
60 *
61 * Find out whether the current cpu is the primary
62 * cpu.
63 */
64func plat_is_my_cpu_primary
65 mrs x0, mpidr_el1
66 and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
67 cmp x0, 0x0
68 cset w0, eq
69 ret
70endfunc plat_is_my_cpu_primary