1 // SPDX-License-Identifier: BSD-2-Clause
2 /*
3 * Copyright (c) 2016, GlobalLogic
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <console.h>
30 #include <crypto/crypto.h>
31 #include <kernel/boot.h>
32 #include <kernel/panic.h>
33 #include <mm/core_memprot.h>
34 #include <platform_config.h>
35 #include <stdint.h>
36 #include <drivers/scif.h>
37 #include <drivers/gic.h>
38
39 register_phys_mem_pgdir(MEM_AREA_IO_SEC, CONSOLE_UART_BASE, SCIF_REG_SIZE);
40 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICD_BASE, GIC_DIST_REG_SIZE);
41 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICC_BASE, GIC_CPU_REG_SIZE);
42 #ifdef PRR_BASE
43 register_phys_mem_pgdir(MEM_AREA_IO_SEC, PRR_BASE, SMALL_PAGE_SIZE);
44 #endif
45
46 /* Legacy platforms */
47 #if defined(PLATFORM_FLAVOR_salvator_h3) || \
48 defined(PLATFORM_FLAVOR_salvator_h3_4x2g) || \
49 defined(PLATFORM_FLAVOR_salvator_m3) || \
50 defined(PLATFORM_FLAVOR_salvator_m3_2x4g) || \
51 defined(PLATFORM_FLAVOR_spider_s4)
52 register_ddr(NSEC_DDR_0_BASE, NSEC_DDR_0_SIZE);
53 register_ddr(NSEC_DDR_1_BASE, NSEC_DDR_1_SIZE);
54 #ifdef NSEC_DDR_2_BASE
55 register_ddr(NSEC_DDR_2_BASE, NSEC_DDR_2_SIZE);
56 #endif
57 #ifdef NSEC_DDR_3_BASE
58 register_ddr(NSEC_DDR_3_BASE, NSEC_DDR_3_SIZE);
59 #endif
60 #endif
61
62 static struct scif_uart_data console_data __nex_bss;
63 static struct gic_data gic_data __nex_bss;
64
65 #ifdef PRR_BASE
66 uint32_t rcar_prr_value __nex_bss;
67 #endif
68
console_init(void)69 void console_init(void)
70 {
71 scif_uart_init(&console_data, CONSOLE_UART_BASE);
72 register_serial_console(&console_data.chip);
73 }
74
75 #ifdef CFG_RCAR_ROMAPI
76 /* Should only seed from a hardware random number generator */
77 static_assert(!IS_ENABLED(CFG_WITH_SOFTWARE_PRNG));
78
plat_get_aslr_seed(void)79 unsigned long plat_get_aslr_seed(void)
80 {
81 unsigned long seed = 0;
82
83 /* On RCAR we can get hw random bytes on early boot stages */
84 if (crypto_rng_read(&seed, sizeof(seed)))
85 panic();
86
87 return seed;
88 }
89 #endif
90
main_init_gic(void)91 void main_init_gic(void)
92 {
93 gic_init(&gic_data, GICC_BASE, GICD_BASE);
94 itr_init(&gic_data.chip);
95 }
96
main_secondary_init_gic(void)97 void main_secondary_init_gic(void)
98 {
99 gic_cpu_init(&gic_data);
100 }
101
itr_core_handler(void)102 void itr_core_handler(void)
103 {
104 gic_it_handle(&gic_data);
105 }
106
107