1 /* 2 * Copyright 2021-2024 NXP 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 #include <stdbool.h> 9 10 #include <arch_helpers.h> 11 #include <common/bl_common.h> 12 #include <common/debug.h> 13 #include <context.h> 14 #include <drivers/console.h> 15 #include <drivers/generic_delay_timer.h> 16 #include <lib/el3_runtime/context_mgmt.h> 17 #include <lib/mmio.h> 18 #include <lib/xlat_tables/xlat_tables_v2.h> 19 #include <plat/common/platform.h> 20 #include <platform_def.h> 21 22 #include <imx8_lpuart.h> 23 #include <imx8ulp_caam.h> 24 #include <imx_plat_common.h> 25 #include <plat_imx8.h> 26 #include <upower_api.h> 27 #include <xrdc.h> 28 29 #define MAP_BL31_TOTAL \ 30 MAP_REGION_FLAT(BL31_BASE, BL31_LIMIT - BL31_BASE, MT_MEMORY | MT_RW | MT_SECURE) 31 #define MAP_BL31_RO \ 32 MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE, MT_MEMORY | MT_RO | MT_SECURE) 33 34 #define MAP_COHERENT_MEM \ 35 MAP_REGION_FLAT(BL_COHERENT_RAM_BASE, (BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE), \ 36 MT_DEVICE | MT_RW | MT_SECURE) 37 38 static const mmap_region_t imx_mmap[] = { 39 DEVICE0_MAP, DEVICE1_MAP, ELE_MAP, 40 SEC_SIM_MAP, SRAM0_MAP, 41 {0} 42 }; 43 44 extern uint32_t upower_init(void); 45 extern void imx8ulp_init_scmi_server(void); 46 47 static entry_point_info_t bl32_image_ep_info; 48 static entry_point_info_t bl33_image_ep_info; 49 50 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, 51 u_register_t arg2, u_register_t arg3) 52 { 53 static console_t console; 54 55 56 /* enable the GPIO D,E,F non-secure access by default */ 57 mmio_write_32(IMX_PCC4_BASE + 0x78, 0xc0000000); 58 mmio_write_32(IMX_PCC4_BASE + 0x7c, 0xc0000000); 59 mmio_write_32(IMX_PCC5_BASE + 0x114, 0xc0000000); 60 61 mmio_write_32(IMX_GPIOE_BASE + 0x10, 0xffffffff); 62 mmio_write_32(IMX_GPIOE_BASE + 0x14, 0x3); 63 mmio_write_32(IMX_GPIOE_BASE + 0x18, 0xffffffff); 64 mmio_write_32(IMX_GPIOE_BASE + 0x1c, 0x3); 65 66 mmio_write_32(IMX_GPIOF_BASE + 0x10, 0xffffffff); 67 mmio_write_32(IMX_GPIOF_BASE + 0x14, 0x3); 68 mmio_write_32(IMX_GPIOF_BASE + 0x18, 0xffffffff); 69 mmio_write_32(IMX_GPIOF_BASE + 0x1c, 0x3); 70 71 mmio_write_32(IMX_GPIOD_BASE + 0x10, 0xffffffff); 72 mmio_write_32(IMX_GPIOD_BASE + 0x14, 0x3); 73 mmio_write_32(IMX_GPIOD_BASE + 0x18, 0xffffffff); 74 mmio_write_32(IMX_GPIOD_BASE + 0x1c, 0x3); 75 76 console_lpuart_register(IMX_LPUART_BASE, IMX_BOOT_UART_CLK_IN_HZ, 77 IMX_CONSOLE_BAUDRATE, &console); 78 79 /* This console is only used for boot stage */ 80 console_set_scope(&console, CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME); 81 82 bl33_image_ep_info.pc = PLAT_NS_IMAGE_OFFSET; 83 bl33_image_ep_info.spsr = plat_get_spsr_for_bl33_entry(); 84 SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE); 85 } 86 87 void bl31_plat_arch_setup(void) 88 { 89 const mmap_region_t bl_regions[] = { 90 MAP_BL31_TOTAL, 91 MAP_BL31_RO, 92 #if USE_COHERENT_MEM 93 MAP_COHERENT_MEM, 94 #endif 95 {0}, 96 }; 97 98 setup_page_tables(bl_regions, imx_mmap); 99 enable_mmu_el3(0); 100 101 /* TODO: Hack, refine this piece, scmi channel free */ 102 mmio_write_32(SRAM0_BASE + 0x4, 1); 103 } 104 105 void bl31_platform_setup(void) 106 { 107 /* select the arch timer source */ 108 mmio_setbits_32(IMX_SIM1_BASE + 0x30, 0x8000000); 109 110 generic_delay_timer_init(); 111 112 plat_gic_driver_init(); 113 plat_gic_init(); 114 115 imx8ulp_init_scmi_server(); 116 upower_init(); 117 118 xrdc_apply_apd_config(); 119 xrdc_apply_lpav_config(); 120 xrdc_enable(); 121 122 imx8ulp_caam_init(); 123 } 124 125 entry_point_info_t *bl31_plat_get_next_image_ep_info(unsigned int type) 126 { 127 if (type == NON_SECURE) { 128 return &bl33_image_ep_info; 129 } else { 130 return &bl32_image_ep_info; 131 } 132 } 133 134 unsigned int plat_get_syscnt_freq2(void) 135 { 136 return COUNTER_FREQUENCY; 137 } 138 139 void bl31_plat_runtime_setup(void) 140 { 141 } 142