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