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 <kernel/boot.h>
31 #include <kernel/panic.h>
32 #include <mm/core_memprot.h>
33 #include <platform_config.h>
34 #include <stdint.h>
35 #include <drivers/scif.h>
36 #include <drivers/gic.h>
37 #include <rng_support.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, PRR_BASE, SMALL_PAGE_SIZE);
41 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICD_BASE, GIC_DIST_REG_SIZE);
42 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICC_BASE, GIC_DIST_REG_SIZE);
43
44 /* Legacy platforms */
45 #if defined(PLATFORM_FLAVOR_salvator_h3) || \
46 defined(PLATFORM_FLAVOR_salvator_h3_4x2g) || \
47 defined(PLATFORM_FLAVOR_salvator_m3) || \
48 defined(PLATFORM_FLAVOR_salvator_m3_2x4g)
49 register_ddr(NSEC_DDR_0_BASE, NSEC_DDR_0_SIZE);
50 register_ddr(NSEC_DDR_1_BASE, NSEC_DDR_1_SIZE);
51 #ifdef NSEC_DDR_2_BASE
52 register_ddr(NSEC_DDR_2_BASE, NSEC_DDR_2_SIZE);
53 #endif
54 #ifdef NSEC_DDR_3_BASE
55 register_ddr(NSEC_DDR_3_BASE, NSEC_DDR_3_SIZE);
56 #endif
57 #endif
58
59 static struct scif_uart_data console_data __nex_bss;
60 uint32_t rcar_prr_value __nex_bss;
61
console_init(void)62 void console_init(void)
63 {
64 scif_uart_init(&console_data, CONSOLE_UART_BASE);
65 register_serial_console(&console_data.chip);
66 }
67
plat_get_aslr_seed(void)68 unsigned long plat_get_aslr_seed(void)
69 {
70 unsigned long seed = 0;
71 size_t i;
72
73 /* On RCAR we can call hw_get_random_byte() on early boot stages */
74 for (i = 0; i < sizeof(seed); i++)
75 seed = (seed << 8) | hw_get_random_byte();
76
77 return seed;
78 }
79