Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 1 | /* |
Carlo Caione | e5a30db | 2019-08-24 17:31:51 +0100 | [diff] [blame] | 2 | * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <assert.h> |
Antonio Nino Diaz | e0f9063 | 2018-12-14 00:18:21 +0000 | [diff] [blame] | 8 | |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 9 | #include <platform_def.h> |
Antonio Nino Diaz | e0f9063 | 2018-12-14 00:18:21 +0000 | [diff] [blame] | 10 | |
| 11 | #include <common/bl_common.h> |
| 12 | #include <common/interrupt_props.h> |
| 13 | #include <drivers/arm/gicv2.h> |
| 14 | #include <lib/xlat_tables/xlat_mmu_helpers.h> |
| 15 | #include <plat/common/platform.h> |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 16 | |
Carlo Caione | e5a30db | 2019-08-24 17:31:51 +0100 | [diff] [blame] | 17 | #include "aml_private.h" |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 18 | |
| 19 | /* |
| 20 | * Placeholder variables for copying the arguments that have been passed to |
| 21 | * BL31 from BL2. |
| 22 | */ |
| 23 | static entry_point_info_t bl33_image_ep_info; |
| 24 | |
| 25 | /******************************************************************************* |
| 26 | * Return a pointer to the 'entry_point_info' structure of the next image for |
| 27 | * the security state specified. BL33 corresponds to the non-secure image type |
| 28 | * while BL32 corresponds to the secure image type. A NULL pointer is returned |
| 29 | * if the image does not exist. |
| 30 | ******************************************************************************/ |
| 31 | entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) |
| 32 | { |
| 33 | entry_point_info_t *next_image_info; |
| 34 | |
| 35 | assert(type == NON_SECURE); |
| 36 | |
| 37 | next_image_info = &bl33_image_ep_info; |
| 38 | |
| 39 | /* None of the images can have 0x0 as the entrypoint. */ |
| 40 | if (next_image_info->pc != 0U) { |
| 41 | return next_image_info; |
| 42 | } else { |
| 43 | return NULL; |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | /******************************************************************************* |
| 48 | * Perform any BL31 early platform setup. Here is an opportunity to copy |
| 49 | * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before |
| 50 | * they are lost (potentially). This needs to be done before the MMU is |
| 51 | * initialized so that the memory layout can be used while creating page |
| 52 | * tables. BL2 has flushed this information to memory, so we are guaranteed |
| 53 | * to pick up good data. |
| 54 | ******************************************************************************/ |
| 55 | struct gxbb_bl31_param { |
| 56 | param_header_t h; |
| 57 | image_info_t *bl31_image_info; |
| 58 | entry_point_info_t *bl32_ep_info; |
| 59 | image_info_t *bl32_image_info; |
| 60 | entry_point_info_t *bl33_ep_info; |
| 61 | image_info_t *bl33_image_info; |
| 62 | }; |
| 63 | |
| 64 | void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, |
| 65 | u_register_t arg2, u_register_t arg3) |
| 66 | { |
| 67 | struct gxbb_bl31_param *from_bl2; |
| 68 | |
| 69 | /* Initialize the console to provide early debug support */ |
Carlo Caione | bf2d626 | 2019-08-25 18:09:03 +0100 | [diff] [blame] | 70 | aml_console_init(); |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 71 | |
| 72 | /* |
| 73 | * In debug builds, we pass a special value in 'arg1' to verify platform |
| 74 | * parameters from BL2 to BL31. In release builds it's not used. |
| 75 | */ |
Carlo Caione | 1e3e33b | 2019-08-28 15:32:22 +0100 | [diff] [blame] | 76 | assert(arg1 == AML_BL31_PLAT_PARAM_VAL); |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 77 | |
| 78 | /* Check that params passed from BL2 are not NULL. */ |
| 79 | from_bl2 = (struct gxbb_bl31_param *) arg0; |
| 80 | |
| 81 | /* Check params passed from BL2 are not NULL. */ |
| 82 | assert(from_bl2 != NULL); |
| 83 | assert(from_bl2->h.type == PARAM_BL31); |
| 84 | assert(from_bl2->h.version >= VERSION_1); |
| 85 | |
| 86 | /* |
| 87 | * Copy BL33 entry point information. It is stored in Secure RAM, in |
| 88 | * BL2's address space. |
| 89 | */ |
| 90 | bl33_image_ep_info = *from_bl2->bl33_ep_info; |
| 91 | |
| 92 | if (bl33_image_ep_info.pc == 0U) { |
| 93 | ERROR("BL31: BL33 entrypoint not obtained from BL2\n"); |
| 94 | panic(); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | void bl31_plat_arch_setup(void) |
| 99 | { |
Carlo Caione | bf2d626 | 2019-08-25 18:09:03 +0100 | [diff] [blame] | 100 | aml_setup_page_tables(); |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 101 | |
| 102 | enable_mmu_el3(0); |
| 103 | } |
| 104 | |
| 105 | /******************************************************************************* |
| 106 | * GICv2 driver setup information |
| 107 | ******************************************************************************/ |
| 108 | static const interrupt_prop_t gxbb_interrupt_props[] = { |
| 109 | INTR_PROP_DESC(IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY, |
| 110 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 111 | INTR_PROP_DESC(IRQ_SEC_SGI_0, GIC_HIGHEST_SEC_PRIORITY, |
| 112 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 113 | INTR_PROP_DESC(IRQ_SEC_SGI_1, GIC_HIGHEST_SEC_PRIORITY, |
| 114 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 115 | INTR_PROP_DESC(IRQ_SEC_SGI_2, GIC_HIGHEST_SEC_PRIORITY, |
| 116 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 117 | INTR_PROP_DESC(IRQ_SEC_SGI_3, GIC_HIGHEST_SEC_PRIORITY, |
| 118 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 119 | INTR_PROP_DESC(IRQ_SEC_SGI_4, GIC_HIGHEST_SEC_PRIORITY, |
| 120 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 121 | INTR_PROP_DESC(IRQ_SEC_SGI_5, GIC_HIGHEST_SEC_PRIORITY, |
| 122 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 123 | INTR_PROP_DESC(IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY, |
| 124 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 125 | INTR_PROP_DESC(IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY, |
| 126 | GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL), |
| 127 | }; |
| 128 | |
| 129 | static const gicv2_driver_data_t gxbb_gic_data = { |
Carlo Caione | 60c828b | 2019-08-24 18:51:48 +0100 | [diff] [blame] | 130 | .gicd_base = AML_GICD_BASE, |
| 131 | .gicc_base = AML_GICC_BASE, |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 132 | .interrupt_props = gxbb_interrupt_props, |
| 133 | .interrupt_props_num = ARRAY_SIZE(gxbb_interrupt_props), |
| 134 | }; |
| 135 | |
| 136 | void bl31_platform_setup(void) |
| 137 | { |
Carlo Caione | 9c85f25 | 2019-08-28 09:46:18 +0100 | [diff] [blame] | 138 | aml_mhu_secure_init(); |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 139 | |
| 140 | gicv2_driver_init(&gxbb_gic_data); |
| 141 | gicv2_distif_init(); |
| 142 | gicv2_pcpu_distif_init(); |
| 143 | gicv2_cpuif_enable(); |
| 144 | |
Carlo Caione | 68aa5ee | 2019-08-25 18:09:59 +0100 | [diff] [blame] | 145 | aml_thermal_unknown(); |
Antonio Nino Diaz | 272e871 | 2018-09-18 01:36:00 +0100 | [diff] [blame] | 146 | } |