1 /* 2 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <arch_helpers.h> 8 #include <arm_gic.h> 9 #include <assert.h> 10 #include <bl_common.h> 11 #include <debug.h> 12 #include <mmio.h> 13 #include <platform.h> 14 #include <platform_def.h> 15 #include <xlat_tables.h> 16 17 #include "../hikey_def.h" 18 19 #define MAP_DDR MAP_REGION_FLAT(DDR_BASE, \ 20 DDR_SIZE, \ 21 MT_DEVICE | MT_RW | MT_NS) 22 23 #define MAP_DEVICE MAP_REGION_FLAT(DEVICE_BASE, \ 24 DEVICE_SIZE, \ 25 MT_DEVICE | MT_RW | MT_SECURE) 26 27 #define MAP_ROM_PARAM MAP_REGION_FLAT(XG2RAM0_BASE, \ 28 BL1_XG2RAM0_OFFSET, \ 29 MT_DEVICE | MT_RO | MT_SECURE) 30 31 #define MAP_SRAM MAP_REGION_FLAT(SRAM_BASE, \ 32 SRAM_SIZE, \ 33 MT_DEVICE | MT_RW | MT_SECURE) 34 35 /* 36 * BL1 needs to access the areas of MMC_SRAM. 37 * BL1 loads BL2 from eMMC into SRAM before DDR initialized. 38 */ 39 #define MAP_MMC_SRAM MAP_REGION_FLAT(HIKEY_BL1_MMC_DESC_BASE, \ 40 HIKEY_BL1_MMC_DESC_SIZE + \ 41 HIKEY_BL1_MMC_DATA_SIZE, \ 42 MT_DEVICE | MT_RW | MT_SECURE) 43 44 /* 45 * Table of regions for different BL stages to map using the MMU. 46 * This doesn't include Trusted RAM as the 'mem_layout' argument passed to 47 * hikey_init_mmu_elx() will give the available subset of that, 48 */ 49 #if IMAGE_BL1 50 static const mmap_region_t hikey_mmap[] = { 51 MAP_DEVICE, 52 MAP_ROM_PARAM, 53 MAP_MMC_SRAM, 54 {0} 55 }; 56 #endif 57 58 #if IMAGE_BL2 59 static const mmap_region_t hikey_mmap[] = { 60 MAP_DDR, 61 MAP_DEVICE, 62 {0} 63 }; 64 #endif 65 66 #if IMAGE_BL31 67 static const mmap_region_t hikey_mmap[] = { 68 MAP_DEVICE, 69 MAP_SRAM, 70 {0} 71 }; 72 #endif 73 74 /* 75 * Macro generating the code for the function setting up the pagetables as per 76 * the platform memory map & initialize the mmu, for the given exception level 77 */ 78 #define HIKEY_CONFIGURE_MMU_EL(_el) \ 79 void hikey_init_mmu_el##_el(unsigned long total_base, \ 80 unsigned long total_size, \ 81 unsigned long ro_start, \ 82 unsigned long ro_limit, \ 83 unsigned long coh_start, \ 84 unsigned long coh_limit) \ 85 { \ 86 mmap_add_region(total_base, total_base, \ 87 total_size, \ 88 MT_MEMORY | MT_RW | MT_SECURE); \ 89 mmap_add_region(ro_start, ro_start, \ 90 ro_limit - ro_start, \ 91 MT_MEMORY | MT_RO | MT_SECURE); \ 92 mmap_add_region(coh_start, coh_start, \ 93 coh_limit - coh_start, \ 94 MT_DEVICE | MT_RW | MT_SECURE); \ 95 mmap_add(hikey_mmap); \ 96 init_xlat_tables(); \ 97 \ 98 enable_mmu_el##_el(0); \ 99 } 100 101 /* Define EL1 and EL3 variants of the function initialising the MMU */ 102 HIKEY_CONFIGURE_MMU_EL(1) 103 HIKEY_CONFIGURE_MMU_EL(3) 104 105 unsigned long plat_get_ns_image_entrypoint(void) 106 { 107 return HIKEY_NS_IMAGE_OFFSET; 108 } 109 110 unsigned int plat_get_syscnt_freq2(void) 111 { 112 return 1200000; 113 } 114