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git01.mediatek.com / filogic / atf / b1f0a376be3601329e1f75e9150769fc5aa08660 / . / plat / hisilicon / hikey960 / aarch64 / hikey960_helpers.S
blob: 2e24416d671dc4961815fc903def4aef90e7deb4 [file] [log] [blame]
Haojian Zhuang602362d2017-06-01 12:15:14 +0800[diff] [blame]1/*
2 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <arch.h>
8#include <asm_macros.S>
Haojian Zhuang1b5c2252017-06-01 15:20:46 +0800[diff] [blame]9#include <cortex_a53.h>
10#include <cortex_a73.h>
Haojian Zhuang602362d2017-06-01 12:15:14 +0800[diff] [blame]11#include "../hikey960_def.h"
12
13 .globl plat_my_core_pos
14 .globl platform_mem_init
15 .globl plat_crash_console_init
16 .globl plat_crash_console_putc
17 .globl plat_report_exception
18 .globl plat_reset_handler
Haojian Zhuang1b5c2252017-06-01 15:20:46 +0800[diff] [blame]19 .globl set_retention_ticks
20 .globl clr_retention_ticks
21 .globl clr_ex
22 .globl nop
Haojian Zhuang602362d2017-06-01 12:15:14 +0800[diff] [blame]23
24func plat_my_core_pos
25 mrs x0, mpidr_el1
26 and x1, x0, #MPIDR_CPU_MASK
27 and x0, x0, #MPIDR_CLUSTER_MASK
28 add x0, x1, x0, LSR #6
29 ret
30endfunc plat_my_core_pos
31
32 /* -----------------------------------------------------
33 * void platform_mem_init(void);
34 *
35 * We don't need to carry out any memory initialization
36 * on HIKEY. The Secure RAM is accessible straight away.
37 * -----------------------------------------------------
38 */
39func platform_mem_init
40 ret
41endfunc platform_mem_init
42
43 /* ---------------------------------------------
44 * int plat_crash_console_init(void)
45 * Function to initialize the crash console
46 * without a C Runtime to print crash report.
47 * Clobber list : x0, x1, x2
48 * ---------------------------------------------
49 */
50func plat_crash_console_init
51 mov_imm x0, CRASH_CONSOLE_BASE
52 mov_imm x1, PL011_UART_CLK_IN_HZ
53 mov_imm x2, PL011_BAUDRATE
54 b console_core_init
55endfunc plat_crash_console_init
56
57 /* ---------------------------------------------
58 * int plat_crash_console_putc(int c)
59 * Function to print a character on the crash
60 * console without a C Runtime.
61 * Clobber list : x1, x2
62 * ---------------------------------------------
63 */
64func plat_crash_console_putc
65 mov_imm x1, CRASH_CONSOLE_BASE
66 b console_core_putc
67endfunc plat_crash_console_putc
68
69 /* ---------------------------------------------
70 * void plat_report_exception(unsigned int type)
71 * Function to report an unhandled exception
72 * with platform-specific means.
73 * On HIKEY platform, it updates the LEDs
74 * to indicate where we are
75 * ---------------------------------------------
76 */
77func plat_report_exception
78 mov x8, x30
79
80 /* Turn on LED according to x0 (0 -- f) */
81 ldr x2, =0xf7020000
82 and x1, x0, #1
83 str w1, [x2, #4]
84 and x1, x0, #2
85 str w1, [x2, #8]
86 and x1, x0, #4
87 str w1, [x2, #16]
88 and x1, x0, #8
89 str w1, [x2, #32]
90
91 mrs x2, currentel
92 and x2, x2, #0x0c
93 /* Check EL1 */
94 cmp x2, #0x04
95 beq plat_report_el1
96
97 adr x4, plat_err_str
98 bl asm_print_str
99
100 adr x4, esr_el3_str
101 bl asm_print_str
102
103 mrs x4, esr_el3
104 bl asm_print_hex
105
106 adr x4, elr_el3_str
107 bl asm_print_str
108
109 mrs x4, elr_el3
110 bl asm_print_hex
111 b plat_report_end
112
113plat_report_el1:
114 adr x4, plat_err_str
115 bl asm_print_str
116
117 adr x4, esr_el1_str
118 bl asm_print_str
119
120 mrs x4, esr_el1
121 bl asm_print_hex
122
123 adr x4, elr_el1_str
124 bl asm_print_str
125
126 mrs x4, elr_el1
127 bl asm_print_hex
128plat_report_end:
129 mov x30, x8
130 ret
131endfunc plat_report_exception
132
133 /* -----------------------------------------------------
134 * void plat_reset_handler(void);
135 * -----------------------------------------------------
136 */
137func plat_reset_handler
138 ret
139endfunc plat_reset_handler
140
Haojian Zhuang1b5c2252017-06-01 15:20:46 +0800[diff] [blame]141 /* -----------------------------------------------------
142 * void set_retention_ticks(unsigned int val);
143 * Clobber list : x0
144 * -----------------------------------------------------
145 */
146func set_retention_ticks
147 mrs x0, CPUECTLR_EL1
148 bic x0, x0, #CPUECTLR_CPU_RET_CTRL_MASK
149 orr x0, x0, #RETENTION_ENTRY_TICKS_8
150 msr CPUECTLR_EL1, x0
151 isb
152 dsb sy
153 ret
154endfunc set_retention_ticks
155
156 /* -----------------------------------------------------
157 * void clr_retention_ticks(unsigned int val);
158 * Clobber list : x0
159 * -----------------------------------------------------
160 */
161func clr_retention_ticks
162 mrs x0, CPUECTLR_EL1
163 bic x0, x0, #CPUECTLR_CPU_RET_CTRL_MASK
164 msr CPUECTLR_EL1, x0
165 isb
166 dsb sy
167 ret
168endfunc clr_retention_ticks
169
170 /* -----------------------------------------------------
171 * void clrex(void);
172 * -----------------------------------------------------
173 */
174func clr_ex
175 clrex
176 ret
177endfunc clr_ex
178
179 /* -----------------------------------------------------
180 * void nop(void);
181 * -----------------------------------------------------
182 */
183func nop
184 nop
185 ret
186endfunc nop
187
Haojian Zhuang602362d2017-06-01 12:15:14 +0800[diff] [blame]188.section .rodata.rev_err_str, "aS"
189plat_err_str:
190 .asciz "\nPlatform exception reporting:"
191esr_el3_str:
192 .asciz "\nESR_EL3: "
193elr_el3_str:
194 .asciz "\nELR_EL3: "
195esr_el1_str:
196 .asciz "\nESR_EL1: "
197elr_el1_str:
198 .asciz "\nELR_EL1: "