1*174a1cfeSYidi Lin /* 2*174a1cfeSYidi Lin * Copyright (c) 2021, MediaTek Inc. All rights reserved. 3*174a1cfeSYidi Lin * 4*174a1cfeSYidi Lin * SPDX-License-Identifier: BSD-3-Clause 5*174a1cfeSYidi Lin */ 6*174a1cfeSYidi Lin 7*174a1cfeSYidi Lin /* System Includes */ 8*174a1cfeSYidi Lin #include <assert.h> 9*174a1cfeSYidi Lin 10*174a1cfeSYidi Lin /* Project Includes */ 11*174a1cfeSYidi Lin #include <common/bl_common.h> 12*174a1cfeSYidi Lin #include <common/debug.h> 13*174a1cfeSYidi Lin #include <common/desc_image_load.h> 14*174a1cfeSYidi Lin #include <drivers/ti/uart/uart_16550.h> 15*174a1cfeSYidi Lin #include <lib/coreboot.h> 16*174a1cfeSYidi Lin 17*174a1cfeSYidi Lin /* Platform Includes */ 18*174a1cfeSYidi Lin #include <plat_params.h> 19*174a1cfeSYidi Lin #include <plat_private.h> 20*174a1cfeSYidi Lin 21*174a1cfeSYidi Lin static entry_point_info_t bl32_ep_info; 22*174a1cfeSYidi Lin static entry_point_info_t bl33_ep_info; 23*174a1cfeSYidi Lin 24*174a1cfeSYidi Lin /******************************************************************************* 25*174a1cfeSYidi Lin * Return a pointer to the 'entry_point_info' structure of the next image for 26*174a1cfeSYidi Lin * the security state specified. BL33 corresponds to the non-secure image type 27*174a1cfeSYidi Lin * while BL32 corresponds to the secure image type. A NULL pointer is returned 28*174a1cfeSYidi Lin * if the image does not exist. 29*174a1cfeSYidi Lin ******************************************************************************/ 30*174a1cfeSYidi Lin entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) 31*174a1cfeSYidi Lin { 32*174a1cfeSYidi Lin entry_point_info_t *next_image_info; 33*174a1cfeSYidi Lin 34*174a1cfeSYidi Lin next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info; 35*174a1cfeSYidi Lin assert(next_image_info->h.type == PARAM_EP); 36*174a1cfeSYidi Lin 37*174a1cfeSYidi Lin /* None of the images on this platform can have 0x0 as the entrypoint */ 38*174a1cfeSYidi Lin if (next_image_info->pc) { 39*174a1cfeSYidi Lin return next_image_info; 40*174a1cfeSYidi Lin } else { 41*174a1cfeSYidi Lin return NULL; 42*174a1cfeSYidi Lin } 43*174a1cfeSYidi Lin } 44*174a1cfeSYidi Lin 45*174a1cfeSYidi Lin /******************************************************************************* 46*174a1cfeSYidi Lin * Perform any BL31 early platform setup. Here is an opportunity to copy 47*174a1cfeSYidi Lin * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they 48*174a1cfeSYidi Lin * are lost (potentially). This needs to be done before the MMU is initialized 49*174a1cfeSYidi Lin * so that the memory layout can be used while creating page tables. 50*174a1cfeSYidi Lin * BL2 has flushed this information to memory, so we are guaranteed to pick up 51*174a1cfeSYidi Lin * good data. 52*174a1cfeSYidi Lin ******************************************************************************/ 53*174a1cfeSYidi Lin void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, 54*174a1cfeSYidi Lin u_register_t arg2, u_register_t arg3) 55*174a1cfeSYidi Lin { 56*174a1cfeSYidi Lin static console_t console; 57*174a1cfeSYidi Lin 58*174a1cfeSYidi Lin params_early_setup(arg1); 59*174a1cfeSYidi Lin 60*174a1cfeSYidi Lin #if COREBOOT 61*174a1cfeSYidi Lin if (coreboot_serial.type) { 62*174a1cfeSYidi Lin console_16550_register(coreboot_serial.baseaddr, 63*174a1cfeSYidi Lin coreboot_serial.input_hertz, 64*174a1cfeSYidi Lin coreboot_serial.baud, 65*174a1cfeSYidi Lin &console); 66*174a1cfeSYidi Lin } 67*174a1cfeSYidi Lin #else 68*174a1cfeSYidi Lin console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console); 69*174a1cfeSYidi Lin #endif 70*174a1cfeSYidi Lin 71*174a1cfeSYidi Lin NOTICE("MT8195 bl31_setup\n"); 72*174a1cfeSYidi Lin 73*174a1cfeSYidi Lin bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info); 74*174a1cfeSYidi Lin } 75*174a1cfeSYidi Lin 76*174a1cfeSYidi Lin 77*174a1cfeSYidi Lin /******************************************************************************* 78*174a1cfeSYidi Lin * Perform any BL31 platform setup code 79*174a1cfeSYidi Lin ******************************************************************************/ 80*174a1cfeSYidi Lin void bl31_platform_setup(void) 81*174a1cfeSYidi Lin { 82*174a1cfeSYidi Lin } 83*174a1cfeSYidi Lin 84*174a1cfeSYidi Lin /******************************************************************************* 85*174a1cfeSYidi Lin * Perform the very early platform specific architectural setup here. At the 86*174a1cfeSYidi Lin * moment this is only intializes the mmu in a quick and dirty way. 87*174a1cfeSYidi Lin ******************************************************************************/ 88*174a1cfeSYidi Lin void bl31_plat_arch_setup(void) 89*174a1cfeSYidi Lin { 90*174a1cfeSYidi Lin plat_configure_mmu_el3(BL31_START, 91*174a1cfeSYidi Lin BL31_END - BL31_START, 92*174a1cfeSYidi Lin BL_CODE_BASE, 93*174a1cfeSYidi Lin BL_CODE_END); 94*174a1cfeSYidi Lin } 95