1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <bl_common.h> 32 #include <debug.h> 33 #include <plat_arm.h> 34 #include "css_scp_bootloader.h" 35 36 /* Weak definition may be overridden in specific CSS based platform */ 37 #pragma weak bl2u_plat_handle_scp_bl2u 38 39 /* Data structure which holds the SCP_BL2U image info for BL2U */ 40 static image_info_t scp_bl2u_image_info; 41 42 /******************************************************************************* 43 * BL1 can pass platform dependent information to BL2U in x1. 44 * In case of ARM CSS platforms x1 contains SCP_BL2U image info. 45 * In case of ARM FVP platforms x1 is not used. 46 * In both cases, x0 contains the extents of the memory available to BL2U 47 ******************************************************************************/ 48 void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) 49 { 50 if (!plat_info) 51 panic(); 52 53 arm_bl2u_early_platform_setup(mem_layout, plat_info); 54 55 scp_bl2u_image_info = *(image_info_t *)plat_info; 56 } 57 58 /******************************************************************************* 59 * Transfer SCP_BL2U from Trusted RAM using the SCP Download protocol. 60 ******************************************************************************/ 61 int bl2u_plat_handle_scp_bl2u(void) 62 { 63 int ret; 64 65 INFO("BL2U: Initiating SCP_BL2U transfer to SCP\n"); 66 67 ret = scp_bootloader_transfer((void *)scp_bl2u_image_info.image_base, 68 scp_bl2u_image_info.image_size); 69 70 if (ret == 0) 71 INFO("BL2U: SCP_BL2U transferred to SCP\n"); 72 else 73 ERROR("BL2U: SCP_BL2U transfer failure\n"); 74 75 return ret; 76 } 77