1 /* 2 * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <common/bl_common.h> 8 #include <common/debug.h> 9 #include <plat/common/platform.h> 10 11 #include <plat_arm.h> 12 13 #include "../drivers/scp/css_scp.h" 14 15 /* Weak definition may be overridden in specific CSS based platform */ 16 #pragma weak bl2u_plat_handle_scp_bl2u 17 18 /* Data structure which holds the SCP_BL2U image info for BL2U */ 19 static image_info_t scp_bl2u_image_info; 20 21 /******************************************************************************* 22 * BL1 can pass platform dependent information to BL2U in x1. 23 * In case of ARM CSS platforms x1 contains SCP_BL2U image info. 24 * In case of ARM FVP platforms x1 is not used. 25 * In both cases, x0 contains the extents of the memory available to BL2U 26 ******************************************************************************/ 27 void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) 28 { 29 if (!plat_info) 30 panic(); 31 32 arm_bl2u_early_platform_setup(mem_layout, plat_info); 33 34 scp_bl2u_image_info = *(image_info_t *)plat_info; 35 } 36 37 /******************************************************************************* 38 * Transfer SCP_BL2U from Trusted RAM using the SCP Download protocol. 39 ******************************************************************************/ 40 int bl2u_plat_handle_scp_bl2u(void) 41 { 42 int ret; 43 44 INFO("BL2U: Initiating SCP_BL2U transfer to SCP\n"); 45 46 ret = css_scp_boot_image_xfer((void *)scp_bl2u_image_info.image_base, 47 scp_bl2u_image_info.image_size); 48 49 if (ret == 0) 50 ret = css_scp_boot_ready(); 51 52 if (ret == 0) 53 INFO("BL2U: SCP_BL2U transferred to SCP\n"); 54 else 55 ERROR("BL2U: SCP_BL2U transfer failure\n"); 56 57 return ret; 58 } 59