1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * ifdtool - Manage Intel Firmware Descriptor information
4  *
5  * Copyright (C) 2011 The ChromiumOS Authors.
6  *
7  * From Coreboot project
8  */
9 
10 #include <stdint.h>
11 
12 #define __packed	__attribute__((packed))
13 
14 #define IFDTOOL_VERSION "1.1-U-Boot"
15 
16 #define WRITE_MAX	16
17 
18 enum spi_frequency {
19 	SPI_FREQUENCY_20MHZ = 0,
20 	SPI_FREQUENCY_33MHZ = 1,
21 	SPI_FREQUENCY_50MHZ = 4,
22 };
23 
24 enum component_density {
25 	COMPONENT_DENSITY_512KB = 0,
26 	COMPONENT_DENSITY_1MB   = 1,
27 	COMPONENT_DENSITY_2MB   = 2,
28 	COMPONENT_DENSITY_4MB   = 3,
29 	COMPONENT_DENSITY_8MB   = 4,
30 	COMPONENT_DENSITY_16MB  = 5,
31 };
32 
33 /* flash descriptor */
34 struct __packed fdbar_t {
35 	uint32_t flvalsig;
36 	uint32_t flmap0;
37 	uint32_t flmap1;
38 	uint32_t flmap2;
39 	uint8_t  reserved[0xefc - 0x20];
40 	uint32_t flumap1;
41 };
42 
43 #define MAX_REGIONS	5
44 
45 /* regions */
46 struct __packed frba_t {
47 	uint32_t flreg[MAX_REGIONS];
48 };
49 
50 /* component section */
51 struct __packed fcba_t {
52 	uint32_t flcomp;
53 	uint32_t flill;
54 	uint32_t flpb;
55 };
56 
57 #define MAX_STRAPS	18
58 
59 /* pch strap */
60 struct __packed fpsba_t {
61 	uint32_t pchstrp[MAX_STRAPS];
62 };
63 
64 /* master */
65 struct __packed fmba_t {
66 	uint32_t flmstr1;
67 	uint32_t flmstr2;
68 	uint32_t flmstr3;
69 };
70 
71 /* processor strap */
72 struct __packed fmsba_t {
73 	uint32_t data[8];
74 };
75 
76 /* ME VSCC */
77 struct vscc_t {
78 	uint32_t jid;
79 	uint32_t vscc;
80 };
81 
82 struct vtba_t {
83 	/* Actual number of entries specified in vtl */
84 	struct vscc_t entry[8];
85 };
86 
87 struct region_t {
88 	int base, limit, size;
89 };
90