xref: /openbmc/u-boot/arch/x86/lib/tables.c (revision 897e1dc8)
1 /*
2  * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <asm/sfi.h>
9 #include <asm/mpspec.h>
10 #include <asm/smbios.h>
11 #include <asm/tables.h>
12 #include <asm/acpi_table.h>
13 
14 u8 table_compute_checksum(void *v, int len)
15 {
16 	u8 *bytes = v;
17 	u8 checksum = 0;
18 	int i;
19 
20 	for (i = 0; i < len; i++)
21 		checksum -= bytes[i];
22 
23 	return checksum;
24 }
25 
26 void table_fill_string(char *dest, const char *src, size_t n, char pad)
27 {
28 	int start, len;
29 	int i;
30 
31 	strncpy(dest, src, n);
32 
33 	/* Fill the remaining bytes with pad */
34 	len = strlen(src);
35 	start = len < n ? len : n;
36 	for (i = start; i < n; i++)
37 		dest[i] = pad;
38 }
39 
40 void write_tables(void)
41 {
42 	u32 __maybe_unused rom_table_start = ROM_TABLE_ADDR;
43 	u32 __maybe_unused rom_table_end;
44 
45 #ifdef CONFIG_GENERATE_PIRQ_TABLE
46 	rom_table_end = write_pirq_routing_table(rom_table_start);
47 	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
48 	rom_table_start = rom_table_end;
49 #endif
50 #ifdef CONFIG_GENERATE_SFI_TABLE
51 	rom_table_end = write_sfi_table(rom_table_start);
52 	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
53 	rom_table_start = rom_table_end;
54 #endif
55 #ifdef CONFIG_GENERATE_MP_TABLE
56 	rom_table_end = write_mp_table(rom_table_start);
57 	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
58 	rom_table_start = rom_table_end;
59 #endif
60 #ifdef CONFIG_GENERATE_ACPI_TABLE
61 	rom_table_end = write_acpi_tables(rom_table_start);
62 	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
63 	rom_table_start = rom_table_end;
64 #endif
65 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
66 	rom_table_end = write_smbios_table(rom_table_start);
67 	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
68 	rom_table_start = rom_table_end;
69 #endif
70 }
71