1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #include <common/bl_common.h> 8*91f16700Schasinglulu #include <common/debug.h> 9*91f16700Schasinglulu #include <drivers/arm/css/css_scp.h> 10*91f16700Schasinglulu #include <plat/arm/common/plat_arm.h> 11*91f16700Schasinglulu #include <plat/common/platform.h> 12*91f16700Schasinglulu 13*91f16700Schasinglulu /* Weak definition may be overridden in specific CSS based platform */ 14*91f16700Schasinglulu #pragma weak bl2u_plat_handle_scp_bl2u 15*91f16700Schasinglulu 16*91f16700Schasinglulu /* Data structure which holds the SCP_BL2U image info for BL2U */ 17*91f16700Schasinglulu static image_info_t scp_bl2u_image_info; 18*91f16700Schasinglulu 19*91f16700Schasinglulu /******************************************************************************* 20*91f16700Schasinglulu * BL1 can pass platform dependent information to BL2U in x1. 21*91f16700Schasinglulu * In case of ARM CSS platforms x1 contains SCP_BL2U image info. 22*91f16700Schasinglulu * In case of ARM FVP platforms x1 is not used. 23*91f16700Schasinglulu * In both cases, x0 contains the extents of the memory available to BL2U 24*91f16700Schasinglulu ******************************************************************************/ 25*91f16700Schasinglulu void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) 26*91f16700Schasinglulu { 27*91f16700Schasinglulu if (!plat_info) 28*91f16700Schasinglulu panic(); 29*91f16700Schasinglulu 30*91f16700Schasinglulu arm_bl2u_early_platform_setup(mem_layout, plat_info); 31*91f16700Schasinglulu 32*91f16700Schasinglulu scp_bl2u_image_info = *(image_info_t *)plat_info; 33*91f16700Schasinglulu } 34*91f16700Schasinglulu 35*91f16700Schasinglulu /******************************************************************************* 36*91f16700Schasinglulu * Transfer SCP_BL2U from Trusted RAM using the SCP Download protocol. 37*91f16700Schasinglulu ******************************************************************************/ 38*91f16700Schasinglulu int bl2u_plat_handle_scp_bl2u(void) 39*91f16700Schasinglulu { 40*91f16700Schasinglulu int ret; 41*91f16700Schasinglulu 42*91f16700Schasinglulu INFO("BL2U: Initiating SCP_BL2U transfer to SCP\n"); 43*91f16700Schasinglulu 44*91f16700Schasinglulu ret = css_scp_boot_image_xfer((void *)scp_bl2u_image_info.image_base, 45*91f16700Schasinglulu scp_bl2u_image_info.image_size); 46*91f16700Schasinglulu 47*91f16700Schasinglulu if (ret == 0) 48*91f16700Schasinglulu ret = css_scp_boot_ready(); 49*91f16700Schasinglulu 50*91f16700Schasinglulu if (ret == 0) 51*91f16700Schasinglulu INFO("BL2U: SCP_BL2U transferred to SCP\n"); 52*91f16700Schasinglulu else 53*91f16700Schasinglulu ERROR("BL2U: SCP_BL2U transfer failure\n"); 54*91f16700Schasinglulu 55*91f16700Schasinglulu return ret; 56*91f16700Schasinglulu } 57