1*27132f13SRex-BC Chen /* 2*27132f13SRex-BC Chen * Copyright (c) 2021, MediaTek Inc. All rights reserved. 3*27132f13SRex-BC Chen * 4*27132f13SRex-BC Chen * SPDX-License-Identifier: BSD-3-Clause 5*27132f13SRex-BC Chen */ 6*27132f13SRex-BC Chen 7*27132f13SRex-BC Chen /* System Includes */ 8*27132f13SRex-BC Chen #include <assert.h> 9*27132f13SRex-BC Chen 10*27132f13SRex-BC Chen /* Project Includes */ 11*27132f13SRex-BC Chen #include <common/bl_common.h> 12*27132f13SRex-BC Chen #include <common/debug.h> 13*27132f13SRex-BC Chen #include <common/desc_image_load.h> 14*27132f13SRex-BC Chen #include <drivers/ti/uart/uart_16550.h> 15*27132f13SRex-BC Chen #include <lib/coreboot.h> 16*27132f13SRex-BC Chen 17*27132f13SRex-BC Chen /* Platform Includes */ 18*27132f13SRex-BC Chen #include <plat_params.h> 19*27132f13SRex-BC Chen #include <plat_private.h> 20*27132f13SRex-BC Chen 21*27132f13SRex-BC Chen static entry_point_info_t bl32_ep_info; 22*27132f13SRex-BC Chen static entry_point_info_t bl33_ep_info; 23*27132f13SRex-BC Chen 24*27132f13SRex-BC Chen /******************************************************************************* 25*27132f13SRex-BC Chen * Return a pointer to the 'entry_point_info' structure of the next image for 26*27132f13SRex-BC Chen * the security state specified. BL33 corresponds to the non-secure image type 27*27132f13SRex-BC Chen * while BL32 corresponds to the secure image type. A NULL pointer is returned 28*27132f13SRex-BC Chen * if the image does not exist. 29*27132f13SRex-BC Chen ******************************************************************************/ 30*27132f13SRex-BC Chen entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) 31*27132f13SRex-BC Chen { 32*27132f13SRex-BC Chen entry_point_info_t *next_image_info; 33*27132f13SRex-BC Chen 34*27132f13SRex-BC Chen next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info; 35*27132f13SRex-BC Chen assert(next_image_info->h.type == PARAM_EP); 36*27132f13SRex-BC Chen 37*27132f13SRex-BC Chen /* None of the images on this platform can have 0x0 as the entrypoint */ 38*27132f13SRex-BC Chen if (next_image_info->pc) { 39*27132f13SRex-BC Chen return next_image_info; 40*27132f13SRex-BC Chen } else { 41*27132f13SRex-BC Chen return NULL; 42*27132f13SRex-BC Chen } 43*27132f13SRex-BC Chen } 44*27132f13SRex-BC Chen 45*27132f13SRex-BC Chen /******************************************************************************* 46*27132f13SRex-BC Chen * Perform any BL31 early platform setup. Here is an opportunity to copy 47*27132f13SRex-BC Chen * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they 48*27132f13SRex-BC Chen * are lost (potentially). This needs to be done before the MMU is initialized 49*27132f13SRex-BC Chen * so that the memory layout can be used while creating page tables. 50*27132f13SRex-BC Chen * BL2 has flushed this information to memory, so we are guaranteed to pick up 51*27132f13SRex-BC Chen * good data. 52*27132f13SRex-BC Chen ******************************************************************************/ 53*27132f13SRex-BC Chen void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, 54*27132f13SRex-BC Chen u_register_t arg2, u_register_t arg3) 55*27132f13SRex-BC Chen { 56*27132f13SRex-BC Chen static console_t console; 57*27132f13SRex-BC Chen 58*27132f13SRex-BC Chen params_early_setup(arg1); 59*27132f13SRex-BC Chen 60*27132f13SRex-BC Chen #if COREBOOT 61*27132f13SRex-BC Chen if (coreboot_serial.type) { 62*27132f13SRex-BC Chen console_16550_register(coreboot_serial.baseaddr, 63*27132f13SRex-BC Chen coreboot_serial.input_hertz, 64*27132f13SRex-BC Chen coreboot_serial.baud, 65*27132f13SRex-BC Chen &console); 66*27132f13SRex-BC Chen } 67*27132f13SRex-BC Chen #else 68*27132f13SRex-BC Chen console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console); 69*27132f13SRex-BC Chen #endif 70*27132f13SRex-BC Chen 71*27132f13SRex-BC Chen INFO("MT8186 bl31_setup\n"); 72*27132f13SRex-BC Chen 73*27132f13SRex-BC Chen bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info); 74*27132f13SRex-BC Chen } 75*27132f13SRex-BC Chen 76*27132f13SRex-BC Chen 77*27132f13SRex-BC Chen /******************************************************************************* 78*27132f13SRex-BC Chen * Perform any BL31 platform setup code 79*27132f13SRex-BC Chen ******************************************************************************/ 80*27132f13SRex-BC Chen void bl31_platform_setup(void) 81*27132f13SRex-BC Chen { 82*27132f13SRex-BC Chen } 83*27132f13SRex-BC Chen 84*27132f13SRex-BC Chen /******************************************************************************* 85*27132f13SRex-BC Chen * Perform the very early platform specific architectural setup here. At the 86*27132f13SRex-BC Chen * moment this is only intializes the mmu in a quick and dirty way. 87*27132f13SRex-BC Chen ******************************************************************************/ 88*27132f13SRex-BC Chen void bl31_plat_arch_setup(void) 89*27132f13SRex-BC Chen { 90*27132f13SRex-BC Chen plat_configure_mmu_el3(BL31_START, 91*27132f13SRex-BC Chen BL31_END - BL31_START, 92*27132f13SRex-BC Chen BL_CODE_BASE, 93*27132f13SRex-BC Chen BL_CODE_END); 94*27132f13SRex-BC Chen } 95