1 /*
2 * Copyright (c) 2021, 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/generic_delay_timer.h>
15 #include <drivers/ti/uart/uart_16550.h>
16 #include <lib/coreboot.h>
17
18 /* Platform Includes */
19 #include <mt_gic_v3.h>
20 #include <mt_spm.h>
21 #include <mt_timer.h>
22 #include <mtk_dcm.h>
23 #include <mtgpio.h>
24 #include <plat_params.h>
25 #include <plat_private.h>
26
27 static entry_point_info_t bl32_ep_info;
28 static entry_point_info_t bl33_ep_info;
29
30 /*******************************************************************************
31 * Return a pointer to the 'entry_point_info' structure of the next image for
32 * the security state specified. BL33 corresponds to the non-secure image type
33 * while BL32 corresponds to the secure image type. A NULL pointer is returned
34 * if the image does not exist.
35 ******************************************************************************/
bl31_plat_get_next_image_ep_info(uint32_t type)36 entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
37 {
38 entry_point_info_t *next_image_info;
39
40 next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info;
41 assert(next_image_info->h.type == PARAM_EP);
42
43 /* None of the images on this platform can have 0x0 as the entrypoint */
44 if (next_image_info->pc) {
45 return next_image_info;
46 } else {
47 return NULL;
48 }
49 }
50
51 /*******************************************************************************
52 * Perform any BL31 early platform setup. Here is an opportunity to copy
53 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
54 * are lost (potentially). This needs to be done before the MMU is initialized
55 * so that the memory layout can be used while creating page tables.
56 * BL2 has flushed this information to memory, so we are guaranteed to pick up
57 * good data.
58 ******************************************************************************/
bl31_early_platform_setup2(u_register_t arg0,u_register_t arg1,u_register_t arg2,u_register_t arg3)59 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
60 u_register_t arg2, u_register_t arg3)
61 {
62 static console_t console;
63
64 params_early_setup(arg1);
65
66 #if COREBOOT
67 if (coreboot_serial.type) {
68 console_16550_register(coreboot_serial.baseaddr,
69 coreboot_serial.input_hertz,
70 coreboot_serial.baud,
71 &console);
72 }
73 #else
74 console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
75 #endif
76
77 NOTICE("MT8195 bl31_setup\n");
78
79 bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info);
80 }
81
82
83 /*******************************************************************************
84 * Perform any BL31 platform setup code
85 ******************************************************************************/
bl31_platform_setup(void)86 void bl31_platform_setup(void)
87 {
88 /* Set dcm on */
89 if (!dcm_set_default()) {
90 ERROR("Failed to set default dcm on!!\n");
91 }
92
93 /* Initialize the GIC driver, CPU and distributor interfaces */
94 mt_gic_driver_init();
95 mt_gic_init();
96
97 mt_gpio_init();
98 mt_systimer_init();
99 generic_delay_timer_init();
100 spm_boot_init();
101 }
102
103 /*******************************************************************************
104 * Perform the very early platform specific architectural setup here. At the
105 * moment this is only intializes the mmu in a quick and dirty way.
106 ******************************************************************************/
bl31_plat_arch_setup(void)107 void bl31_plat_arch_setup(void)
108 {
109 plat_configure_mmu_el3(BL31_START,
110 BL31_END - BL31_START,
111 BL_CODE_BASE,
112 BL_CODE_END);
113 }
114