xref: /rk3399_ARM-atf/plat/imx/imx8ulp/imx8ulp_bl31_setup.c (revision 7c5eedca4c7f176448e6b92eb5c22ee2ea45e70a)
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 
28 #define MAP_BL31_TOTAL										   \
29 	MAP_REGION_FLAT(BL31_BASE, BL31_LIMIT - BL31_BASE, MT_MEMORY | MT_RW | MT_SECURE)
30 #define MAP_BL31_RO										   \
31 	MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE, MT_MEMORY | MT_RO | MT_SECURE)
32 
33 #define MAP_COHERENT_MEM									\
34 	MAP_REGION_FLAT(BL_COHERENT_RAM_BASE, (BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE),	\
35 			 MT_DEVICE | MT_RW | MT_SECURE)
36 
37 static const mmap_region_t imx_mmap[] = {
38 	DEVICE0_MAP, DEVICE1_MAP, ELE_MAP,
39 	SEC_SIM_MAP, SRAM0_MAP,
40 	{0}
41 };
42 
43 extern uint32_t upower_init(void);
44 extern void imx8ulp_init_scmi_server(void);
45 
46 static entry_point_info_t bl32_image_ep_info;
47 static entry_point_info_t bl33_image_ep_info;
48 
49 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
50 				u_register_t arg2, u_register_t arg3)
51 {
52 	static console_t console;
53 
54 
55 	/* enable the GPIO D,E,F non-secure access by default */
56 	mmio_write_32(IMX_PCC4_BASE + 0x78, 0xc0000000);
57 	mmio_write_32(IMX_PCC4_BASE + 0x7c, 0xc0000000);
58 	mmio_write_32(IMX_PCC5_BASE + 0x114, 0xc0000000);
59 
60 	mmio_write_32(IMX_GPIOE_BASE + 0x10, 0xffffffff);
61 	mmio_write_32(IMX_GPIOE_BASE + 0x14, 0x3);
62 	mmio_write_32(IMX_GPIOE_BASE + 0x18, 0xffffffff);
63 	mmio_write_32(IMX_GPIOE_BASE + 0x1c, 0x3);
64 
65 	mmio_write_32(IMX_GPIOF_BASE + 0x10, 0xffffffff);
66 	mmio_write_32(IMX_GPIOF_BASE + 0x14, 0x3);
67 	mmio_write_32(IMX_GPIOF_BASE + 0x18, 0xffffffff);
68 	mmio_write_32(IMX_GPIOF_BASE + 0x1c, 0x3);
69 
70 	mmio_write_32(IMX_GPIOD_BASE + 0x10, 0xffffffff);
71 	mmio_write_32(IMX_GPIOD_BASE + 0x14, 0x3);
72 	mmio_write_32(IMX_GPIOD_BASE + 0x18, 0xffffffff);
73 	mmio_write_32(IMX_GPIOD_BASE + 0x1c, 0x3);
74 
75 	console_lpuart_register(IMX_LPUART_BASE, IMX_BOOT_UART_CLK_IN_HZ,
76 		     IMX_CONSOLE_BAUDRATE, &console);
77 
78 	/* This console is only used for boot stage */
79 	console_set_scope(&console, CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
80 
81 	bl33_image_ep_info.pc = PLAT_NS_IMAGE_OFFSET;
82 	bl33_image_ep_info.spsr = plat_get_spsr_for_bl33_entry();
83 	SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
84 }
85 
86 void bl31_plat_arch_setup(void)
87 {
88 	const mmap_region_t bl_regions[] = {
89 		MAP_BL31_TOTAL,
90 		MAP_BL31_RO,
91 #if USE_COHERENT_MEM
92 		MAP_COHERENT_MEM,
93 #endif
94 		{0},
95 	};
96 
97 	setup_page_tables(bl_regions, imx_mmap);
98 	enable_mmu_el3(0);
99 
100 	/* TODO: Hack, refine this piece, scmi channel free */
101 	mmio_write_32(SRAM0_BASE + 0x4, 1);
102 }
103 
104 void bl31_platform_setup(void)
105 {
106 	/* select the arch timer source */
107 	mmio_setbits_32(IMX_SIM1_BASE + 0x30, 0x8000000);
108 
109 	generic_delay_timer_init();
110 
111 	plat_gic_driver_init();
112 	plat_gic_init();
113 
114 	imx8ulp_init_scmi_server();
115 	upower_init();
116 	imx8ulp_caam_init();
117 }
118 
119 entry_point_info_t *bl31_plat_get_next_image_ep_info(unsigned int type)
120 {
121 	if (type == NON_SECURE) {
122 		return &bl33_image_ep_info;
123 	} else {
124 		return &bl32_image_ep_info;
125 	}
126 }
127 
128 unsigned int plat_get_syscnt_freq2(void)
129 {
130 	return COUNTER_FREQUENCY;
131 }
132 
133 void bl31_plat_runtime_setup(void)
134 {
135 }
136