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Dan Handleyb226a4d2014-05-16 14:08:45 +01001/*
Antonio Nino Diaz4ef91f12017-02-20 14:22:22 +00002 * Copyright (c) 2014-2017, 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
23#endif /* ERROR_DEPRECATED */
Dan Handleyb226a4d2014-05-16 14:08:45 +010024
Jeenu Viswambharan04e3a7f2017-10-16 08:43:14 +010025#if SDEI_SUPPORT
26#pragma weak plat_sdei_handle_masked_trigger
27#pragma weak plat_sdei_validate_entry_point
28#endif
29
Achin Guptae9982542014-06-26 08:59:07 +010030void bl31_plat_enable_mmu(uint32_t flags)
Dan Handleyb226a4d2014-05-16 14:08:45 +010031{
Achin Guptae9982542014-06-26 08:59:07 +010032 enable_mmu_el3(flags);
Dan Handleyb226a4d2014-05-16 14:08:45 +010033}
34
Achin Guptae9982542014-06-26 08:59:07 +010035void bl32_plat_enable_mmu(uint32_t flags)
Dan Handleyb226a4d2014-05-16 14:08:45 +010036{
Achin Guptae9982542014-06-26 08:59:07 +010037 enable_mmu_el1(flags);
Dan Handleyb226a4d2014-05-16 14:08:45 +010038}
Soby Mathew70716d62015-07-13 16:26:11 +010039
Soby Mathew1ff495b2015-12-09 11:28:43 +000040void bl31_plat_runtime_setup(void)
41{
42 /*
43 * Finish the use of console driver in BL31 so that any runtime logs
44 * from BL31 will be suppressed.
45 */
46 console_uninit();
47}
48
Soby Mathew70716d62015-07-13 16:26:11 +010049#if !ENABLE_PLAT_COMPAT
50/*
51 * Helper function for platform_get_pos() when platform compatibility is
52 * disabled. This is to enable SPDs using the older platform API to continue
53 * to work.
54 */
55unsigned int platform_core_pos_helper(unsigned long mpidr)
56{
57 int idx = plat_core_pos_by_mpidr(mpidr);
58 assert(idx >= 0);
59 return idx;
60}
61#endif
62
Antonio Nino Diaz391a76e2016-05-18 16:53:31 +010063
64#if !ERROR_DEPRECATED
65unsigned int plat_get_syscnt_freq2(void)
66{
67 unsigned long long freq = plat_get_syscnt_freq();
68
69 assert(freq >> 32 == 0);
70
71 return (unsigned int)freq;
72}
73#endif /* ERROR_DEPRECATED */
Jeenu Viswambharan04e3a7f2017-10-16 08:43:14 +010074
75#if SDEI_SUPPORT
76/*
77 * Function that handles spurious SDEI interrupts while events are masked.
78 */
79void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
80{
81 WARN("Spurious SDEI interrupt %u on masked PE %lx\n", intr, mpidr);
82}
83
84/*
85 * Default Function to validate SDEI entry point, which returns success.
86 * Platforms may override this with their own validation mechanism.
87 */
88int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
89{
90 return 0;
91}
92#endif