blob: cb90b7152f2511b1c7050c6c828068a3b5716bf4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* Copyright (c) 2023, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <asm_macros.S>
#include <common/bl_common.h>
#include <neoverse_hermes.h>
#include <cpu_macros.S>
#include <plat_macros.S>
/* Hardware handled coherency */
#if HW_ASSISTED_COHERENCY == 0
#error "Neoverse Hermes must be compiled with HW_ASSISTED_COHERENCY enabled"
#endif
/* 64-bit only core */
#if CTX_INCLUDE_AARCH32_REGS == 1
#error "Neoverse Hermes supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0"
#endif
cpu_reset_func_start neoverse_hermes
/* Disable speculative loads */
msr SSBS, xzr
cpu_reset_func_end neoverse_hermes
/* ----------------------------------------------------
* HW will do the cache maintenance while powering down
* ----------------------------------------------------
*/
func neoverse_hermes_core_pwr_dwn
/* ---------------------------------------------------
* Enable CPU power down bit in power control register
* ---------------------------------------------------
*/
sysreg_bit_set NEOVERSE_HERMES_CPUPWRCTLR_EL1, NEOVERSE_HERMES_CPUPWRCTLR_EL1_CORE_PWRDN_BIT
isb
ret
endfunc neoverse_hermes_core_pwr_dwn
errata_report_shim neoverse_hermes
/* ---------------------------------------------
* This function provides Neoverse Hermes specific
* register information for crash reporting.
* It needs to return with x6 pointing to
* a list of register names in ascii and
* x8 - x15 having values of registers to be
* reported.
* ---------------------------------------------
*/
.section .rodata.neoverse_hermes_regs, "aS"
neoverse_hermes_regs: /* The ascii list of register names to be reported */
.asciz "cpuectlr_el1", ""
func neoverse_hermes_cpu_reg_dump
adr x6, neoverse_hermes_regs
mrs x8, NEOVERSE_HERMES_CPUECTLR_EL1
ret
endfunc neoverse_hermes_cpu_reg_dump
declare_cpu_ops neoverse_hermes, NEOVERSE_HERMES_MIDR, \
neoverse_hermes_reset_func, \
neoverse_hermes_core_pwr_dwn
|
