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 <mtgpio.h> 24 #include <mtk_dcm.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 ******************************************************************************/ 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 ******************************************************************************/ 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 INFO("MT8186 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 ******************************************************************************/ 87 void bl31_platform_setup(void) 88 { 89 dcm_set_default(); 90 91 /* Initialize the GIC driver, CPU and distributor interfaces */ 92 mt_gic_driver_init(); 93 mt_gic_init(); 94 95 mt_gpio_init(); 96 mt_systimer_init(); 97 generic_delay_timer_init(); 98 spm_boot_init(); 99 100 emi_mpu_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 ******************************************************************************/ 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