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 <emi_mpu.h>
20 #include <mt_gic_v3.h>
21 #include <mt_spm.h>
22 #include <mt_timer.h>
23 #include <mtk_dcm.h>
24 #include <mtgpio.h>
25 #include <plat_params.h>
26 #include <plat_private.h>
27
28 static entry_point_info_t bl32_ep_info;
29 static entry_point_info_t bl33_ep_info;
30
31 /*******************************************************************************
32 * Return a pointer to the 'entry_point_info' structure of the next image for
33 * the security state specified. BL33 corresponds to the non-secure image type
34 * while BL32 corresponds to the secure image type. A NULL pointer is returned
35 * if the image does not exist.
36 ******************************************************************************/
bl31_plat_get_next_image_ep_info(uint32_t type)37 entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
38 {
39 entry_point_info_t *next_image_info;
40
41 next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info;
42 assert(next_image_info->h.type == PARAM_EP);
43
44 /* None of the images on this platform can have 0x0 as the entrypoint */
45 if (next_image_info->pc) {
46 return next_image_info;
47 } else {
48 return NULL;
49 }
50 }
51
52 /*******************************************************************************
53 * Perform any BL31 early platform setup. Here is an opportunity to copy
54 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
55 * are lost (potentially). This needs to be done before the MMU is initialized
56 * so that the memory layout can be used while creating page tables.
57 * BL2 has flushed this information to memory, so we are guaranteed to pick up
58 * good data.
59 ******************************************************************************/
bl31_early_platform_setup2(u_register_t arg0,u_register_t arg1,u_register_t arg2,u_register_t arg3)60 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
61 u_register_t arg2, u_register_t arg3)
62 {
63 static console_t console;
64
65 params_early_setup(arg1);
66
67 #if COREBOOT
68 if (coreboot_serial.type) {
69 console_16550_register(coreboot_serial.baseaddr,
70 coreboot_serial.input_hertz,
71 coreboot_serial.baud,
72 &console);
73 }
74 #else
75 console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
76 #endif
77
78 NOTICE("MT8195 bl31_setup\n");
79
80 bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info);
81 }
82
83
84 /*******************************************************************************
85 * Perform any BL31 platform setup code
86 ******************************************************************************/
bl31_platform_setup(void)87 void bl31_platform_setup(void)
88 {
89 /* Set dcm on */
90 if (!dcm_set_default()) {
91 ERROR("Failed to set default dcm on!!\n");
92 }
93
94 /* Initialize EMI MPU */
95 emi_mpu_init();
96
97 /* Initialize the GIC driver, CPU and distributor interfaces */
98 mt_gic_driver_init();
99 mt_gic_init();
100
101 mt_gpio_init();
102 mt_systimer_init();
103 generic_delay_timer_init();
104 spm_boot_init();
105 }
106
107 /*******************************************************************************
108 * Perform the very early platform specific architectural setup here. At the
109 * moment this is only intializes the mmu in a quick and dirty way.
110 ******************************************************************************/
bl31_plat_arch_setup(void)111 void bl31_plat_arch_setup(void)
112 {
113 plat_configure_mmu_el3(BL31_START,
114 BL31_END - BL31_START,
115 BL_CODE_BASE,
116 BL_CODE_END);
117 }
118