| /* |
| * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include <arch.h> |
| #include <asm_macros.S> |
| #include <cortex_a53.h> |
| #include <cortex_a73.h> |
| #include "../hikey960_def.h" |
| |
| .globl plat_my_core_pos |
| .globl platform_mem_init |
| .globl plat_crash_console_init |
| .globl plat_crash_console_putc |
| .globl plat_report_exception |
| .globl plat_reset_handler |
| .globl set_retention_ticks |
| .globl clr_retention_ticks |
| .globl clr_ex |
| .globl nop |
| |
| func plat_my_core_pos |
| mrs x0, mpidr_el1 |
| and x1, x0, #MPIDR_CPU_MASK |
| and x0, x0, #MPIDR_CLUSTER_MASK |
| add x0, x1, x0, LSR #6 |
| ret |
| endfunc plat_my_core_pos |
| |
| /* ----------------------------------------------------- |
| * void platform_mem_init(void); |
| * |
| * We don't need to carry out any memory initialization |
| * on HIKEY. The Secure RAM is accessible straight away. |
| * ----------------------------------------------------- |
| */ |
| func platform_mem_init |
| ret |
| endfunc platform_mem_init |
| |
| /* --------------------------------------------- |
| * 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, CRASH_CONSOLE_BASE |
| mov_imm x1, PL011_UART_CLK_IN_HZ |
| mov_imm x2, PL011_BAUDRATE |
| b console_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, CRASH_CONSOLE_BASE |
| b console_core_putc |
| endfunc plat_crash_console_putc |
| |
| /* --------------------------------------------- |
| * void plat_report_exception(unsigned int type) |
| * Function to report an unhandled exception |
| * with platform-specific means. |
| * On HIKEY platform, it updates the LEDs |
| * to indicate where we are |
| * --------------------------------------------- |
| */ |
| func plat_report_exception |
| mov x8, x30 |
| |
| /* Turn on LED according to x0 (0 -- f) */ |
| ldr x2, =0xf7020000 |
| and x1, x0, #1 |
| str w1, [x2, #4] |
| and x1, x0, #2 |
| str w1, [x2, #8] |
| and x1, x0, #4 |
| str w1, [x2, #16] |
| and x1, x0, #8 |
| str w1, [x2, #32] |
| |
| mrs x2, currentel |
| and x2, x2, #0x0c |
| /* Check EL1 */ |
| cmp x2, #0x04 |
| beq plat_report_el1 |
| |
| adr x4, plat_err_str |
| bl asm_print_str |
| |
| adr x4, esr_el3_str |
| bl asm_print_str |
| |
| mrs x4, esr_el3 |
| bl asm_print_hex |
| |
| adr x4, elr_el3_str |
| bl asm_print_str |
| |
| mrs x4, elr_el3 |
| bl asm_print_hex |
| b plat_report_end |
| |
| plat_report_el1: |
| adr x4, plat_err_str |
| bl asm_print_str |
| |
| adr x4, esr_el1_str |
| bl asm_print_str |
| |
| mrs x4, esr_el1 |
| bl asm_print_hex |
| |
| adr x4, elr_el1_str |
| bl asm_print_str |
| |
| mrs x4, elr_el1 |
| bl asm_print_hex |
| plat_report_end: |
| mov x30, x8 |
| ret |
| endfunc plat_report_exception |
| |
| /* ----------------------------------------------------- |
| * void plat_reset_handler(void); |
| * ----------------------------------------------------- |
| */ |
| func plat_reset_handler |
| ret |
| endfunc plat_reset_handler |
| |
| /* ----------------------------------------------------- |
| * void set_retention_ticks(unsigned int val); |
| * Clobber list : x0 |
| * ----------------------------------------------------- |
| */ |
| func set_retention_ticks |
| mrs x0, CORTEX_A53_ECTLR_EL1 |
| bic x0, x0, #CORTEX_A53_ECTLR_CPU_RET_CTRL_MASK |
| orr x0, x0, #RETENTION_ENTRY_TICKS_8 |
| msr CORTEX_A53_ECTLR_EL1, x0 |
| isb |
| dsb sy |
| ret |
| endfunc set_retention_ticks |
| |
| /* ----------------------------------------------------- |
| * void clr_retention_ticks(unsigned int val); |
| * Clobber list : x0 |
| * ----------------------------------------------------- |
| */ |
| func clr_retention_ticks |
| mrs x0, CORTEX_A53_ECTLR_EL1 |
| bic x0, x0, #CORTEX_A53_ECTLR_CPU_RET_CTRL_MASK |
| msr CORTEX_A53_ECTLR_EL1, x0 |
| isb |
| dsb sy |
| ret |
| endfunc clr_retention_ticks |
| |
| /* ----------------------------------------------------- |
| * void clrex(void); |
| * ----------------------------------------------------- |
| */ |
| func clr_ex |
| clrex |
| ret |
| endfunc clr_ex |
| |
| /* ----------------------------------------------------- |
| * void nop(void); |
| * ----------------------------------------------------- |
| */ |
| func nop |
| nop |
| ret |
| endfunc nop |
| |
| .section .rodata.rev_err_str, "aS" |
| plat_err_str: |
| .asciz "\nPlatform exception reporting:" |
| esr_el3_str: |
| .asciz "\nESR_EL3: " |
| elr_el3_str: |
| .asciz "\nELR_EL3: " |
| esr_el1_str: |
| .asciz "\nESR_EL1: " |
| elr_el1_str: |
| .asciz "\nELR_EL1: " |