1 /*
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/generic_delay_timer.h>
15 #include <drivers/ti/uart/uart_16550.h>
16 #include <lib/coreboot.h>
17
18 /* Platform Includes */
19 #include <devapc/devapc.h>
20 #include <emi_mpu/emi_mpu.h>
21 #include <gpio/mtgpio.h>
22 #include <mt_gic_v3.h>
23 #include <mt_spm.h>
24 #include <mt_timer.h>
25 #include <mtk_dcm.h>
26 #include <plat_params.h>
27 #include <plat_private.h>
28
29 static entry_point_info_t bl32_ep_info;
30 static entry_point_info_t bl33_ep_info;
31
32 /*******************************************************************************
33 * Return a pointer to the 'entry_point_info' structure of the next image for
34 * the security state specified. BL33 corresponds to the non-secure image type
35 * while BL32 corresponds to the secure image type. A NULL pointer is returned
36 * if the image does not exist.
37 ******************************************************************************/
bl31_plat_get_next_image_ep_info(uint32_t type)38 entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
39 {
40 entry_point_info_t *next_image_info;
41
42 next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info;
43 assert(next_image_info->h.type == PARAM_EP);
44
45 /* None of the images on this platform can have 0x0 as the entrypoint */
46 if (next_image_info->pc) {
47 return next_image_info;
48 } else {
49 return NULL;
50 }
51 }
52
53 /*******************************************************************************
54 * Perform any BL31 early platform setup. Here is an opportunity to copy
55 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
56 * are lost (potentially). This needs to be done before the MMU is initialized
57 * so that the memory layout can be used while creating page tables.
58 * BL2 has flushed this information to memory, so we are guaranteed to pick up
59 * good data.
60 ******************************************************************************/
bl31_early_platform_setup2(u_register_t arg0,u_register_t arg1,u_register_t arg2,u_register_t arg3)61 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
62 u_register_t arg2, u_register_t arg3)
63 {
64 static console_t console;
65
66 params_early_setup(arg1);
67
68 #if COREBOOT
69 if (coreboot_serial.type) {
70 console_16550_register(coreboot_serial.baseaddr,
71 coreboot_serial.input_hertz,
72 coreboot_serial.baud,
73 &console);
74 }
75 #else
76 console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
77 #endif
78
79 NOTICE("MT8192 bl31_setup\n");
80
81 bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info);
82 }
83
84
85 /*******************************************************************************
86 * Perform any BL31 platform setup code
87 ******************************************************************************/
bl31_platform_setup(void)88 void bl31_platform_setup(void)
89 {
90 /* Set dcm on */
91 if (!dcm_set_default()) {
92 ERROR("Failed to set default dcm on!!\n");
93 }
94
95 /* MPU Init */
96 emi_mpu_init();
97
98 /* DAPC Init */
99 devapc_init();
100
101 /* Initialize the GIC driver, CPU and distributor interfaces */
102 mt_gic_driver_init();
103 mt_gic_init();
104
105 mt_gpio_init();
106 mt_systimer_init();
107 generic_delay_timer_init();
108 spm_boot_init();
109 }
110
111 /*******************************************************************************
112 * Perform the very early platform specific architectural setup here. At the
113 * moment this is only intializes the mmu in a quick and dirty way.
114 ******************************************************************************/
bl31_plat_arch_setup(void)115 void bl31_plat_arch_setup(void)
116 {
117 plat_configure_mmu_el3(BL31_START,
118 BL31_END - BL31_START,
119 BL_CODE_BASE,
120 BL_CODE_END);
121 }
122