| Jiafei Pan | f6954b1 | 2021-09-26 11:51:42 +0800 | [diff] [blame] | 1 | /* |
| 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 | |
| 17 | func platform_mem1_init |
| 18 | ret |
| 19 | endfunc platform_mem1_init |
| 20 | |
| 21 | func platform_mem_init |
| 22 | ret |
| 23 | endfunc platform_mem_init |
| 24 | |
| 25 | func apply_platform_errata |
| 26 | ret |
| 27 | endfunc apply_platform_errata |
| 28 | |
| 29 | func 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 |
| 39 | 1: |
| 40 | mov x30, x29 |
| 41 | ret |
| 42 | endfunc 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 | */ |
| 52 | func plat_secondary_cold_boot_setup |
| 53 | /* ls1043a does not do cold boot for secondary CPU */ |
| 54 | cb_panic: |
| 55 | b cb_panic |
| 56 | endfunc 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 | */ |
| 64 | func 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 |
| 70 | endfunc plat_is_my_cpu_primary |