| Jiafei Pan | b4ccced | 2022-01-20 17:40:16 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-2022 NXP |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <arch.h> |
| 9 | #include <asm_macros.S> |
| 10 | |
| 11 | #include <platform_def.h> |
| 12 | |
| 13 | .globl plat_secondary_cold_boot_setup |
| 14 | .globl plat_is_my_cpu_primary |
| 15 | .globl plat_reset_handler |
| 16 | .globl platform_mem_init |
| 17 | |
| 18 | func platform_mem1_init |
| 19 | ret |
| 20 | endfunc platform_mem1_init |
| 21 | |
| 22 | func platform_mem_init |
| 23 | ret |
| 24 | endfunc platform_mem_init |
| 25 | |
| 26 | func l2_mem_init |
| 27 | /* Initialize the L2 RAM latency */ |
| 28 | mrs x1, S3_1_c11_c0_2 |
| 29 | mov x0, #0x1C7 |
| 30 | /* Clear L2 Tag RAM latency and L2 Data RAM latency */ |
| 31 | bic x1, x1, x0 |
| 32 | /* Set L2 data ram latency bits [2:0] */ |
| 33 | orr x1, x1, #0x2 |
| 34 | /* set L2 tag ram latency bits [8:6] */ |
| 35 | orr x1, x1, #0x80 |
| 36 | msr S3_1_c11_c0_2, x1 |
| 37 | isb |
| 38 | ret |
| 39 | endfunc l2_mem_init |
| 40 | |
| 41 | func apply_platform_errata |
| 42 | ret |
| 43 | endfunc apply_platform_errata |
| 44 | |
| 45 | func plat_reset_handler |
| 46 | mov x29, x30 |
| 47 | #if (defined(IMAGE_BL2) && BL2_AT_EL3) |
| 48 | bl l2_mem_init |
| 49 | #endif |
| 50 | bl apply_platform_errata |
| 51 | |
| 52 | #if defined(IMAGE_BL31) |
| 53 | ldr x0, =POLICY_SMMU_PAGESZ_64K |
| 54 | cbz x0, 1f |
| 55 | /* Set the SMMU page size in the SACR register */ |
| 56 | bl _set_smmu_pagesz_64 |
| 57 | #endif |
| 58 | 1: |
| 59 | /* |
| 60 | * May be cntfrq_el0 needs to be assigned |
| 61 | * the value COUNTER_FREQUENCY |
| 62 | */ |
| 63 | mov x30, x29 |
| 64 | ret |
| 65 | endfunc plat_reset_handler |
| 66 | |
| 67 | /* |
| 68 | * void plat_secondary_cold_boot_setup (void); |
| 69 | * |
| 70 | * This function performs any platform specific actions |
| 71 | * needed for a secondary cpu after a cold reset e.g |
| 72 | * mark the cpu's presence, mechanism to place it in a |
| 73 | * holding pen etc. |
| 74 | */ |
| 75 | func plat_secondary_cold_boot_setup |
| 76 | /* ls1046a does not do cold boot for secondary CPU */ |
| 77 | cb_panic: |
| 78 | b cb_panic |
| 79 | endfunc plat_secondary_cold_boot_setup |
| 80 | |
| 81 | /* |
| 82 | * unsigned int plat_is_my_cpu_primary (void); |
| 83 | * |
| 84 | * Find out whether the current cpu is the primary cpu. |
| 85 | */ |
| 86 | func plat_is_my_cpu_primary |
| 87 | mrs x0, mpidr_el1 |
| 88 | and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK) |
| 89 | cmp x0, 0x0 |
| 90 | cset w0, eq |
| 91 | ret |
| 92 | endfunc plat_is_my_cpu_primary |