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Dan Handleyb226a4d2014-05-16 14:08:45 +01001/*
Soby Mathew73308d02018-01-09 14:36:14 +00002 * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
Dan Handleyb226a4d2014-05-16 14:08:45 +01003 *
dp-armfa3cf0b2017-05-03 09:38:09 +01004 * SPDX-License-Identifier: BSD-3-Clause
Dan Handleyb226a4d2014-05-16 14:08:45 +01005 */
Jeenu Viswambharan04e3a7f2017-10-16 08:43:14 +01006
7#include <arch_helpers.h>
Soby Mathew70716d62015-07-13 16:26:11 +01008#include <assert.h>
Soby Mathew1ff495b2015-12-09 11:28:43 +00009#include <console.h>
Soby Mathew70716d62015-07-13 16:26:11 +010010#include <platform.h>
Antonio Nino Diaz4ef91f12017-02-20 14:22:22 +000011#include <xlat_mmu_helpers.h>
Dan Handleyb226a4d2014-05-16 14:08:45 +010012
13/*
Soby Mathew1ff495b2015-12-09 11:28:43 +000014 * The following platform setup functions are weakly defined. They
Dan Handleyb226a4d2014-05-16 14:08:45 +010015 * provide typical implementations that may be re-used by multiple
16 * platforms but may also be overridden by a platform if required.
17 */
18#pragma weak bl31_plat_enable_mmu
19#pragma weak bl32_plat_enable_mmu
Soby Mathew1ff495b2015-12-09 11:28:43 +000020#pragma weak bl31_plat_runtime_setup
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010021#if !ERROR_DEPRECATED
22#pragma weak plat_get_syscnt_freq2
Soby Mathew73308d02018-01-09 14:36:14 +000023#pragma weak bl31_early_platform_setup2
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010024#endif /* ERROR_DEPRECATED */
Dan Handleyb226a4d2014-05-16 14:08:45 +010025
Jeenu Viswambharan04e3a7f2017-10-16 08:43:14 +010026#if SDEI_SUPPORT
27#pragma weak plat_sdei_handle_masked_trigger
28#pragma weak plat_sdei_validate_entry_point
29#endif
30
Achin Guptae9982542014-06-26 08:59:07 +010031void bl31_plat_enable_mmu(uint32_t flags)
Dan Handleyb226a4d2014-05-16 14:08:45 +010032{
Achin Guptae9982542014-06-26 08:59:07 +010033 enable_mmu_el3(flags);
Dan Handleyb226a4d2014-05-16 14:08:45 +010034}
35
Achin Guptae9982542014-06-26 08:59:07 +010036void bl32_plat_enable_mmu(uint32_t flags)
Dan Handleyb226a4d2014-05-16 14:08:45 +010037{
Achin Guptae9982542014-06-26 08:59:07 +010038 enable_mmu_el1(flags);
Dan Handleyb226a4d2014-05-16 14:08:45 +010039}
Soby Mathew70716d62015-07-13 16:26:11 +010040
Soby Mathew1ff495b2015-12-09 11:28:43 +000041void bl31_plat_runtime_setup(void)
42{
Julius Werner94f89072017-07-31 18:15:11 -070043#if MULTI_CONSOLE_API
44 console_switch_state(CONSOLE_FLAG_RUNTIME);
45#else
Soby Mathew1ff495b2015-12-09 11:28:43 +000046 console_uninit();
Julius Werner94f89072017-07-31 18:15:11 -070047#endif
Soby Mathew1ff495b2015-12-09 11:28:43 +000048}
49
Soby Mathew70716d62015-07-13 16:26:11 +010050#if !ENABLE_PLAT_COMPAT
51/*
52 * Helper function for platform_get_pos() when platform compatibility is
53 * disabled. This is to enable SPDs using the older platform API to continue
54 * to work.
55 */
56unsigned int platform_core_pos_helper(unsigned long mpidr)
57{
58 int idx = plat_core_pos_by_mpidr(mpidr);
59 assert(idx >= 0);
60 return idx;
61}
62#endif
63
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010064
65#if !ERROR_DEPRECATED
66unsigned int plat_get_syscnt_freq2(void)
67{
Dan Handley807d7272018-02-27 13:00:43 +000068 WARN("plat_get_syscnt_freq() is deprecated\n");
69 WARN("Please define plat_get_syscnt_freq2()\n");
70 /*
71 * Suppress deprecated declaration warning in compatibility function
72 */
73#pragma GCC diagnostic push
74#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010075 unsigned long long freq = plat_get_syscnt_freq();
Dan Handley807d7272018-02-27 13:00:43 +000076#pragma GCC diagnostic pop
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010077
78 assert(freq >> 32 == 0);
79
80 return (unsigned int)freq;
81}
Soby Mathew73308d02018-01-09 14:36:14 +000082
83void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
84 u_register_t arg2, u_register_t arg3)
85{
86 bl31_early_platform_setup((void *) arg0, (void *)arg1);
87}
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010088#endif /* ERROR_DEPRECATED */
Jeenu Viswambharan04e3a7f2017-10-16 08:43:14 +010089
90#if SDEI_SUPPORT
91/*
92 * Function that handles spurious SDEI interrupts while events are masked.
93 */
94void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
95{
Masahiro Yamadae93a0f42018-02-02 15:09:36 +090096 WARN("Spurious SDEI interrupt %u on masked PE %llx\n", intr, mpidr);
Jeenu Viswambharan04e3a7f2017-10-16 08:43:14 +010097}
98
99/*
100 * Default Function to validate SDEI entry point, which returns success.
101 * Platforms may override this with their own validation mechanism.
102 */
103int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
104{
105 return 0;
106}
107#endif