| /* |
| * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include <arch.h> |
| #include <asm_macros.S> |
| #include <assert_macros.S> |
| #include <platform_def.h> |
| |
| .global sq_calc_core_pos |
| .global plat_my_core_pos |
| .global platform_mem_init |
| .global plat_is_my_cpu_primary |
| .global plat_secondary_cold_boot_setup |
| .global plat_crash_console_init |
| .global plat_crash_console_putc |
| .global plat_crash_console_flush |
| |
| /* |
| * unsigned int sq_calc_core_pos(u_register_t mpidr) |
| * core_pos = (cluster_id * max_cpus_per_cluster) + core_id |
| */ |
| func sq_calc_core_pos |
| and x1, x0, #MPIDR_CPU_MASK |
| and x0, x0, #MPIDR_CLUSTER_MASK |
| add x0, x1, x0, lsr #7 |
| ret |
| endfunc sq_calc_core_pos |
| |
| func plat_my_core_pos |
| mrs x0, mpidr_el1 |
| b sq_calc_core_pos |
| endfunc plat_my_core_pos |
| |
| func platform_mem_init |
| ret |
| endfunc platform_mem_init |
| |
| /* |
| * Secondary CPUs are placed in a holding pen, waiting for their mailbox |
| * to be populated. Note that all CPUs share the same mailbox ; therefore, |
| * populating it will release all CPUs from their holding pen. If |
| * finer-grained control is needed then this should be handled in the |
| * code that secondary CPUs jump to. |
| */ |
| func plat_secondary_cold_boot_setup |
| ldr x0, sq_sec_entrypoint |
| |
| /* Wait until the mailbox gets populated */ |
| poll_mailbox: |
| cbz x0, 1f |
| br x0 |
| 1: |
| wfe |
| b poll_mailbox |
| endfunc plat_secondary_cold_boot_setup |
| |
| /* |
| * Find out whether the current cpu is the primary |
| * cpu (applicable only after a cold boot) |
| */ |
| func plat_is_my_cpu_primary |
| mov x9, x30 |
| bl plat_my_core_pos |
| ldr x1, =SQ_BOOT_CFG_ADDR |
| ldr x1, [x1] |
| ubfx x1, x1, #PLAT_SQ_PRIMARY_CPU_SHIFT, \ |
| #PLAT_SQ_PRIMARY_CPU_BIT_WIDTH |
| cmp x0, x1 |
| cset w0, eq |
| ret x9 |
| endfunc plat_is_my_cpu_primary |
| |
| /* |
| * int plat_crash_console_init(void) |
| * Function to initialize the crash console |
| * without a C Runtime to print crash report. |
| * Clobber list : x0, x1, x2 |
| */ |
| func plat_crash_console_init |
| mov_imm x0, PLAT_SQ_BOOT_UART_BASE |
| mov_imm x1, PLAT_SQ_BOOT_UART_CLK_IN_HZ |
| mov_imm x2, SQ_CONSOLE_BAUDRATE |
| b console_pl011_core_init |
| endfunc plat_crash_console_init |
| |
| /* |
| * int plat_crash_console_putc(int c) |
| * Function to print a character on the crash |
| * console without a C Runtime. |
| * Clobber list : x1, x2 |
| */ |
| func plat_crash_console_putc |
| mov_imm x1, PLAT_SQ_BOOT_UART_BASE |
| b console_pl011_core_putc |
| endfunc plat_crash_console_putc |
| |
| /* |
| * int plat_crash_console_flush(int c) |
| * Function to force a write of all buffered |
| * data that hasn't been output. |
| * Out : return -1 on error else return 0. |
| * Clobber list : x0, x1 |
| */ |
| func plat_crash_console_flush |
| mov_imm x0, PLAT_SQ_BOOT_UART_BASE |
| b console_pl011_core_flush |
| endfunc plat_crash_console_flush |
