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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
4  */
5 
6 #include <common.h>
7 #include <smbios.h>
8 #include <asm/sfi.h>
9 #include <asm/mpspec.h>
10 #include <asm/tables.h>
11 #include <asm/acpi_table.h>
12 #include <asm/coreboot_tables.h>
13 
14 /**
15  * Function prototype to write a specific configuration table
16  *
17  * @addr:	start address to write the table
18  * @return:	end address of the table
19  */
20 typedef ulong (*table_write)(ulong addr);
21 
22 static table_write table_write_funcs[] = {
23 #ifdef CONFIG_GENERATE_PIRQ_TABLE
24 	write_pirq_routing_table,
25 #endif
26 #ifdef CONFIG_GENERATE_SFI_TABLE
27 	write_sfi_table,
28 #endif
29 #ifdef CONFIG_GENERATE_MP_TABLE
30 	write_mp_table,
31 #endif
32 #ifdef CONFIG_GENERATE_ACPI_TABLE
33 	write_acpi_tables,
34 #endif
35 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
36 	write_smbios_table,
37 #endif
38 };
39 
table_fill_string(char * dest,const char * src,size_t n,char pad)40 void table_fill_string(char *dest, const char *src, size_t n, char pad)
41 {
42 	int start, len;
43 	int i;
44 
45 	strncpy(dest, src, n);
46 
47 	/* Fill the remaining bytes with pad */
48 	len = strlen(src);
49 	start = len < n ? len : n;
50 	for (i = start; i < n; i++)
51 		dest[i] = pad;
52 }
53 
write_tables(void)54 void write_tables(void)
55 {
56 	u32 rom_table_start = ROM_TABLE_ADDR;
57 	u32 rom_table_end;
58 #ifdef CONFIG_SEABIOS
59 	u32 high_table, table_size;
60 	struct memory_area cfg_tables[ARRAY_SIZE(table_write_funcs) + 1];
61 #endif
62 	int i;
63 
64 	for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) {
65 		rom_table_end = table_write_funcs[i](rom_table_start);
66 		rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
67 
68 #ifdef CONFIG_SEABIOS
69 		table_size = rom_table_end - rom_table_start;
70 		high_table = (u32)high_table_malloc(table_size);
71 		if (high_table) {
72 			table_write_funcs[i](high_table);
73 
74 			cfg_tables[i].start = high_table;
75 			cfg_tables[i].size = table_size;
76 		} else {
77 			printf("%d: no memory for configuration tables\n", i);
78 		}
79 #endif
80 
81 		rom_table_start = rom_table_end;
82 	}
83 
84 #ifdef CONFIG_SEABIOS
85 	/* make sure the last item is zero */
86 	cfg_tables[i].size = 0;
87 	write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
88 #endif
89 }
90