1*f85f37d4SNina Wu /* 2*f85f37d4SNina Wu * Copyright (c) 2020, MediaTek Inc. All rights reserved. 3*f85f37d4SNina Wu * 4*f85f37d4SNina Wu * SPDX-License-Identifier: BSD-3-Clause 5*f85f37d4SNina Wu */ 6*f85f37d4SNina Wu 7*f85f37d4SNina Wu /* System Includes */ 8*f85f37d4SNina Wu #include <assert.h> 9*f85f37d4SNina Wu 10*f85f37d4SNina Wu /* Project Includes */ 11*f85f37d4SNina Wu #include <common/bl_common.h> 12*f85f37d4SNina Wu #include <common/debug.h> 13*f85f37d4SNina Wu #include <common/desc_image_load.h> 14*f85f37d4SNina Wu #include <drivers/ti/uart/uart_16550.h> 15*f85f37d4SNina Wu #include <lib/coreboot.h> 16*f85f37d4SNina Wu 17*f85f37d4SNina Wu /* Platform Includes */ 18*f85f37d4SNina Wu #include <plat_params.h> 19*f85f37d4SNina Wu #include <plat_private.h> 20*f85f37d4SNina Wu 21*f85f37d4SNina Wu static entry_point_info_t bl32_ep_info; 22*f85f37d4SNina Wu static entry_point_info_t bl33_ep_info; 23*f85f37d4SNina Wu 24*f85f37d4SNina Wu /******************************************************************************* 25*f85f37d4SNina Wu * Return a pointer to the 'entry_point_info' structure of the next image for 26*f85f37d4SNina Wu * the security state specified. BL33 corresponds to the non-secure image type 27*f85f37d4SNina Wu * while BL32 corresponds to the secure image type. A NULL pointer is returned 28*f85f37d4SNina Wu * if the image does not exist. 29*f85f37d4SNina Wu ******************************************************************************/ 30*f85f37d4SNina Wu entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) 31*f85f37d4SNina Wu { 32*f85f37d4SNina Wu entry_point_info_t *next_image_info; 33*f85f37d4SNina Wu 34*f85f37d4SNina Wu next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info; 35*f85f37d4SNina Wu assert(next_image_info->h.type == PARAM_EP); 36*f85f37d4SNina Wu 37*f85f37d4SNina Wu /* None of the images on this platform can have 0x0 as the entrypoint */ 38*f85f37d4SNina Wu if (next_image_info->pc) { 39*f85f37d4SNina Wu return next_image_info; 40*f85f37d4SNina Wu } else { 41*f85f37d4SNina Wu return NULL; 42*f85f37d4SNina Wu } 43*f85f37d4SNina Wu } 44*f85f37d4SNina Wu 45*f85f37d4SNina Wu /******************************************************************************* 46*f85f37d4SNina Wu * Perform any BL31 early platform setup. Here is an opportunity to copy 47*f85f37d4SNina Wu * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they 48*f85f37d4SNina Wu * are lost (potentially). This needs to be done before the MMU is initialized 49*f85f37d4SNina Wu * so that the memory layout can be used while creating page tables. 50*f85f37d4SNina Wu * BL2 has flushed this information to memory, so we are guaranteed to pick up 51*f85f37d4SNina Wu * good data. 52*f85f37d4SNina Wu ******************************************************************************/ 53*f85f37d4SNina Wu void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, 54*f85f37d4SNina Wu u_register_t arg2, u_register_t arg3) 55*f85f37d4SNina Wu { 56*f85f37d4SNina Wu static console_t console; 57*f85f37d4SNina Wu 58*f85f37d4SNina Wu params_early_setup(arg1); 59*f85f37d4SNina Wu 60*f85f37d4SNina Wu #if COREBOOT 61*f85f37d4SNina Wu if (coreboot_serial.type) { 62*f85f37d4SNina Wu console_16550_register(coreboot_serial.baseaddr, 63*f85f37d4SNina Wu coreboot_serial.input_hertz, 64*f85f37d4SNina Wu coreboot_serial.baud, 65*f85f37d4SNina Wu &console); 66*f85f37d4SNina Wu } 67*f85f37d4SNina Wu #else 68*f85f37d4SNina Wu console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console); 69*f85f37d4SNina Wu #endif 70*f85f37d4SNina Wu 71*f85f37d4SNina Wu NOTICE("MT8192 bl31_setup\n"); 72*f85f37d4SNina Wu 73*f85f37d4SNina Wu bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info); 74*f85f37d4SNina Wu } 75*f85f37d4SNina Wu 76*f85f37d4SNina Wu 77*f85f37d4SNina Wu /******************************************************************************* 78*f85f37d4SNina Wu * Perform any BL31 platform setup code 79*f85f37d4SNina Wu ******************************************************************************/ 80*f85f37d4SNina Wu void bl31_platform_setup(void) 81*f85f37d4SNina Wu { 82*f85f37d4SNina Wu } 83*f85f37d4SNina Wu 84*f85f37d4SNina Wu /******************************************************************************* 85*f85f37d4SNina Wu * Perform the very early platform specific architectural setup here. At the 86*f85f37d4SNina Wu * moment this is only intializes the mmu in a quick and dirty way. 87*f85f37d4SNina Wu ******************************************************************************/ 88*f85f37d4SNina Wu void bl31_plat_arch_setup(void) 89*f85f37d4SNina Wu { 90*f85f37d4SNina Wu plat_configure_mmu_el3(BL31_START, 91*f85f37d4SNina Wu BL31_END - BL31_START, 92*f85f37d4SNina Wu BL_CODE_BASE, 93*f85f37d4SNina Wu BL_CODE_END); 94*f85f37d4SNina Wu } 95