| Michal Simek | 9179436 | 2022-08-31 16:45:14 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved. |
| 3 | * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. |
| 4 | * Copyright (C) 2022, Advanced Micro Devices, Inc. All rights reserved. |
| 5 | * |
| 6 | * SPDX-License-Identifier: BSD-3-Clause |
| 7 | */ |
| 8 | |
| 9 | #include <arch.h> |
| 10 | #include <asm_macros.S> |
| 11 | #include <drivers/arm/gicv3.h> |
| 12 | #include <platform_def.h> |
| 13 | |
| 14 | .globl plat_secondary_cold_boot_setup |
| 15 | .globl plat_is_my_cpu_primary |
| 16 | .globl platform_mem_init |
| 17 | .globl plat_my_core_pos |
| 18 | .globl plat_crash_console_init |
| 19 | .globl plat_crash_console_putc |
| 20 | .globl plat_crash_console_flush |
| 21 | |
| 22 | /* ----------------------------------------------------- |
| 23 | * void plat_secondary_cold_boot_setup (void); |
| 24 | * |
| 25 | * This function performs any platform specific actions |
| 26 | * needed for a secondary cpu after a cold reset e.g |
| 27 | * mark the cpu's presence, mechanism to place it in a |
| 28 | * holding pen etc. |
| 29 | * TODO: Should we read the PSYS register to make sure |
| 30 | * that the request has gone through. |
| 31 | * ----------------------------------------------------- |
| 32 | */ |
| 33 | func plat_secondary_cold_boot_setup |
| 34 | mrs x0, mpidr_el1 |
| 35 | |
| 36 | /* |
| 37 | * There is no sane reason to come out of this wfi. This |
| 38 | * cpu will be powered on and reset by the cpu_on pm api |
| 39 | */ |
| 40 | dsb sy |
| 41 | bl plat_panic_handler |
| 42 | endfunc plat_secondary_cold_boot_setup |
| 43 | |
| 44 | func plat_is_my_cpu_primary |
| 45 | mov x9, x30 |
| 46 | bl plat_my_core_pos |
| 47 | cmp x0, #VERSAL_NET_PRIMARY_CPU |
| 48 | cset x0, eq |
| 49 | ret x9 |
| 50 | endfunc plat_is_my_cpu_primary |
| 51 | |
| 52 | /* ----------------------------------------------------- |
| 53 | * unsigned int plat_my_core_pos(void) |
| 54 | * This function uses the plat_core_pos_by_mpidr() |
| 55 | * definition to get the index of the calling CPU. |
| 56 | * ----------------------------------------------------- |
| 57 | */ |
| 58 | func plat_my_core_pos |
| 59 | mrs x0, mpidr_el1 |
| 60 | b plat_core_pos_by_mpidr |
| 61 | endfunc plat_my_core_pos |
| 62 | |
| 63 | /* --------------------------------------------------------------------- |
| 64 | * We don't need to carry out any memory initialization on Versal NET |
| 65 | * platform. The Secure RAM is accessible straight away. |
| 66 | * --------------------------------------------------------------------- |
| 67 | */ |
| 68 | func platform_mem_init |
| 69 | ret |
| 70 | endfunc platform_mem_init |
| 71 | |
| 72 | |
| 73 | /* --------------------------------------------- |
| 74 | * int plat_crash_console_init(void) |
| 75 | * Function to initialize the crash console |
| 76 | * without a C Runtime to print crash report. |
| 77 | * Clobber list : x0, x1, x2 |
| 78 | * --------------------------------------------- |
| 79 | */ |
| 80 | func plat_crash_console_init |
| 81 | /* mov_imm x0, PLAT_VERSAL_NET_CRASH_UART_BASE |
| 82 | mov_imm x1, PLAT_VERSAL_NET_CRASH_UART_CLK_IN_HZ |
| 83 | mov_imm x2, VERSAL_NET_CONSOLE_BAUDRATE |
| 84 | b console_pl011_core_init */ |
| 85 | endfunc plat_crash_console_init |
| 86 | |
| 87 | /* --------------------------------------------- |
| 88 | * int plat_crash_console_putc(int c) |
| 89 | * Function to print a character on the crash |
| 90 | * console without a C Runtime. |
| 91 | * Clobber list : x1, x2 |
| 92 | * --------------------------------------------- |
| 93 | */ |
| 94 | func plat_crash_console_putc |
| 95 | mov_imm x1, PLAT_VERSAL_NET_CRASH_UART_BASE |
| 96 | b console_pl011_core_putc |
| 97 | endfunc plat_crash_console_putc |
| 98 | |
| 99 | /* --------------------------------------------- |
| 100 | * void plat_crash_console_flush() |
| 101 | * Function to force a write of all buffered |
| 102 | * data that hasn't been output. |
| 103 | * Out : void. |
| 104 | * Clobber list : x0, x1 |
| 105 | * --------------------------------------------- |
| 106 | */ |
| 107 | func plat_crash_console_flush |
| 108 | mov_imm x0, PLAT_VERSAL_NET_CRASH_UART_BASE |
| 109 | b console_pl011_core_flush |
| 110 | endfunc plat_crash_console_flush |