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Antonio Nino Diazae6779e2017-11-06 14:49:04 +00001/*
Andre Przywara4ea3bd32019-07-09 14:32:11 +01002 * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
Antonio Nino Diazae6779e2017-11-06 14:49:04 +00003 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
Antonio Nino Diaze0f90632018-12-14 00:18:21 +00007#include <platform_def.h>
8
Antonio Nino Diazae6779e2017-11-06 14:49:04 +00009#include <arch.h>
10#include <arch_helpers.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000011#include <common/bl_common.h>
12#include <common/debug.h>
Andre Przywarae2dc2f52019-07-15 09:02:15 +010013#include <lib/mmio.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000014#include <lib/xlat_tables/xlat_mmu_helpers.h>
15#include <lib/xlat_tables/xlat_tables_defs.h>
Antonio Nino Diazae6779e2017-11-06 14:49:04 +000016
Andre Przywara4ea3bd32019-07-09 14:32:11 +010017#include <rpi_shared.h>
Antonio Nino Diazae6779e2017-11-06 14:49:04 +000018
19/* Data structure which holds the extents of the trusted SRAM for BL1 */
20static meminfo_t bl1_tzram_layout;
21
22meminfo_t *bl1_plat_sec_mem_layout(void)
23{
24 return &bl1_tzram_layout;
25}
26
27/*******************************************************************************
28 * Perform any BL1 specific platform actions.
29 ******************************************************************************/
30void bl1_early_platform_setup(void)
31{
Andre Przywarae2dc2f52019-07-15 09:02:15 +010032 /* use the 19.2 MHz clock for the architected timer */
33 mmio_write_32(RPI3_INTC_BASE_ADDRESS + RPI3_INTC_CONTROL_OFFSET, 0);
34 mmio_write_32(RPI3_INTC_BASE_ADDRESS + RPI3_INTC_PRESCALER_OFFSET,
35 0x80000000);
36
Antonio Nino Diazae6779e2017-11-06 14:49:04 +000037 /* Initialize the console to provide early debug support */
Antonio Nino Diaz1f470022018-03-27 09:39:47 +010038 rpi3_console_init();
Antonio Nino Diazae6779e2017-11-06 14:49:04 +000039
40 /* Allow BL1 to see the whole Trusted RAM */
41 bl1_tzram_layout.total_base = BL_RAM_BASE;
42 bl1_tzram_layout.total_size = BL_RAM_SIZE;
43}
44
45/******************************************************************************
46 * Perform the very early platform specific architecture setup. This only
47 * does basic initialization. Later architectural setup (bl1_arch_setup())
48 * does not do anything platform specific.
49 *****************************************************************************/
50void bl1_plat_arch_setup(void)
51{
52 rpi3_setup_page_tables(bl1_tzram_layout.total_base,
53 bl1_tzram_layout.total_size,
54 BL_CODE_BASE, BL1_CODE_END,
55 BL1_RO_DATA_BASE, BL1_RO_DATA_END
56#if USE_COHERENT_MEM
57 , BL_COHERENT_RAM_BASE, BL_COHERENT_RAM_END
58#endif
59 );
60
61 enable_mmu_el3(0);
62}
63
64void bl1_platform_setup(void)
65{
Antonio Nino Diazecf34712018-07-12 13:38:53 +010066 uint32_t __unused rev;
67 int __unused rc;
68
69 rc = rpi3_vc_hardware_get_board_revision(&rev);
70
71 if (rc == 0) {
72 const char __unused *model, __unused *info;
73
74 switch (rev) {
75 case 0xA02082:
76 model = "Raspberry Pi 3 Model B";
77 info = "(1GB, Sony, UK)";
78 break;
79 case 0xA22082:
80 model = "Raspberry Pi 3 Model B";
81 info = "(1GB, Embest, China)";
82 break;
83 case 0xA020D3:
84 model = "Raspberry Pi 3 Model B+";
85 info = "(1GB, Sony, UK)";
86 break;
87 default:
88 model = "Unknown";
89 info = "(Unknown)";
90 ERROR("rpi3: Unknown board revision 0x%08x\n", rev);
91 break;
92 }
93
94 NOTICE("rpi3: Detected: %s %s [0x%08x]\n", model, info, rev);
95 } else {
96 ERROR("rpi3: Unable to detect board revision\n");
97 }
98
Antonio Nino Diazae6779e2017-11-06 14:49:04 +000099 /* Initialise the IO layer and register platform IO devices */
100 plat_rpi3_io_setup();
101}