blob: 9a01bef65e82090b52515280d7c04d8a2a096d10 [file] [log] [blame]
developer2189d3a2020-04-17 17:14:23 +08001/*
2 * Copyright (c) 2020, MediaTek Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7/* System Includes */
8#include <assert.h>
9
10/* Project Includes */
11#include <common/bl_common.h>
12#include <common/debug.h>
13#include <common/desc_image_load.h>
14#include <drivers/ti/uart/uart_16550.h>
15#include <lib/coreboot.h>
16
17/* Platform Includes */
developer404e08b2020-09-18 09:32:31 +080018#include <gpio/mtgpio.h>
developerf9b56842020-06-09 13:38:35 +080019#include <mt_gic_v3.h>
developer2189d3a2020-04-17 17:14:23 +080020#include <plat_params.h>
21#include <plat_private.h>
22
23static entry_point_info_t bl32_ep_info;
24static entry_point_info_t bl33_ep_info;
25
26/*******************************************************************************
27 * Return a pointer to the 'entry_point_info' structure of the next image for
28 * the security state specified. BL33 corresponds to the non-secure image type
29 * while BL32 corresponds to the secure image type. A NULL pointer is returned
30 * if the image does not exist.
31 ******************************************************************************/
32entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
33{
34 entry_point_info_t *next_image_info;
35
36 next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info;
37 assert(next_image_info->h.type == PARAM_EP);
38
39 /* None of the images on this platform can have 0x0 as the entrypoint */
40 if (next_image_info->pc) {
41 return next_image_info;
42 } else {
43 return NULL;
44 }
45}
46
47/*******************************************************************************
48 * Perform any BL31 early platform setup. Here is an opportunity to copy
49 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
50 * are lost (potentially). This needs to be done before the MMU is initialized
51 * so that the memory layout can be used while creating page tables.
52 * BL2 has flushed this information to memory, so we are guaranteed to pick up
53 * good data.
54 ******************************************************************************/
55void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
56 u_register_t arg2, u_register_t arg3)
57{
58 static console_t console;
59
60 params_early_setup(arg1);
61
62#if COREBOOT
63 if (coreboot_serial.type) {
64 console_16550_register(coreboot_serial.baseaddr,
65 coreboot_serial.input_hertz,
66 coreboot_serial.baud,
67 &console);
68 }
69#else
70 console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
71#endif
72
73 NOTICE("MT8192 bl31_setup\n");
74
75 bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info);
76}
77
78
79/*******************************************************************************
80 * Perform any BL31 platform setup code
81 ******************************************************************************/
82void bl31_platform_setup(void)
83{
developerf9b56842020-06-09 13:38:35 +080084 /* Initialize the GIC driver, CPU and distributor interfaces */
85 mt_gic_driver_init();
86 mt_gic_init();
developer404e08b2020-09-18 09:32:31 +080087 plat_mt8192_gpio_init();
developer2189d3a2020-04-17 17:14:23 +080088}
89
90/*******************************************************************************
91 * Perform the very early platform specific architectural setup here. At the
92 * moment this is only intializes the mmu in a quick and dirty way.
93 ******************************************************************************/
94void bl31_plat_arch_setup(void)
95{
96 plat_configure_mmu_el3(BL31_START,
97 BL31_END - BL31_START,
98 BL_CODE_BASE,
99 BL_CODE_END);
100}