1 /* 2 * Copyright 2016 - 2017 Xilinx, Inc. 3 * 4 * Michal Simek <michal.simek@xilinx.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <asm/io.h> 11 #include <asm/arch/hardware.h> 12 #include <asm/arch/sys_proto.h> 13 14 /* 15 * atfhandoffparams 16 * Parameter bitfield encoding 17 * ----------------------------------------------------------------------------- 18 * Exec State 0 0 -> Aarch64, 1-> Aarch32 19 * endianness 1 0 -> LE, 1 -> BE 20 * secure (TZ) 2 0 -> Non secure, 1 -> secure 21 * EL 3:4 00 -> EL0, 01 -> EL1, 10 -> EL2, 11 -> EL3 22 * CPU# 5:6 00 -> A53_0, 01 -> A53_1, 10 -> A53_2, 11 -> A53_3 23 */ 24 25 #define FSBL_FLAGS_ESTATE_SHIFT 0 26 #define FSBL_FLAGS_ESTATE_MASK (1 << FSBL_FLAGS_ESTATE_SHIFT) 27 #define FSBL_FLAGS_ESTATE_A64 0 28 #define FSBL_FLAGS_ESTATE_A32 1 29 30 #define FSBL_FLAGS_ENDIAN_SHIFT 1 31 #define FSBL_FLAGS_ENDIAN_MASK (1 << FSBL_FLAGS_ENDIAN_SHIFT) 32 #define FSBL_FLAGS_ENDIAN_LE 0 33 #define FSBL_FLAGS_ENDIAN_BE 1 34 35 #define FSBL_FLAGS_TZ_SHIFT 2 36 #define FSBL_FLAGS_TZ_MASK (1 << FSBL_FLAGS_TZ_SHIFT) 37 #define FSBL_FLAGS_NON_SECURE 0 38 #define FSBL_FLAGS_SECURE 1 39 40 #define FSBL_FLAGS_EL_SHIFT 3 41 #define FSBL_FLAGS_EL_MASK (3 << FSBL_FLAGS_EL_SHIFT) 42 #define FSBL_FLAGS_EL0 0 43 #define FSBL_FLAGS_EL1 1 44 #define FSBL_FLAGS_EL2 2 45 #define FSBL_FLAGS_EL3 3 46 47 #define FSBL_FLAGS_CPU_SHIFT 5 48 #define FSBL_FLAGS_CPU_MASK (3 << FSBL_FLAGS_CPU_SHIFT) 49 #define FSBL_FLAGS_A53_0 0 50 #define FSBL_FLAGS_A53_1 1 51 #define FSBL_FLAGS_A53_2 2 52 #define FSBL_FLAGS_A53_3 3 53 54 #define FSBL_MAX_PARTITIONS 8 55 56 /* Structure corresponding to each partition entry */ 57 struct xfsbl_partition { 58 uint64_t entry_point; 59 uint64_t flags; 60 }; 61 62 /* Structure for handoff parameters to ARM Trusted Firmware (ATF) */ 63 struct xfsbl_atf_handoff_params { 64 uint8_t magic[4]; 65 uint32_t num_entries; 66 struct xfsbl_partition partition[FSBL_MAX_PARTITIONS]; 67 }; 68 69 #ifdef CONFIG_SPL_OS_BOOT 70 void handoff_setup(void) 71 { 72 struct xfsbl_atf_handoff_params *atfhandoffparams; 73 74 atfhandoffparams = (void *)CONFIG_SPL_TEXT_BASE; 75 atfhandoffparams->magic[0] = 'X'; 76 atfhandoffparams->magic[1] = 'L'; 77 atfhandoffparams->magic[2] = 'N'; 78 atfhandoffparams->magic[3] = 'X'; 79 80 atfhandoffparams->num_entries = 1; 81 atfhandoffparams->partition[0].entry_point = CONFIG_SYS_TEXT_BASE; 82 atfhandoffparams->partition[0].flags = FSBL_FLAGS_EL2 << 83 FSBL_FLAGS_EL_SHIFT; 84 85 writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6); 86 } 87 #endif 88