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comparison loadtools/flash.h @ 0:e7502631a0f9

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initial import from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Jun 2016 00:13:35 +0000
parents
children 0dd2c87c1b63
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-1:000000000000 0:e7502631a0f9
1 /* this header file contains definitions for fc-loadtool flash support */
2
3 /*
4 * The following structures represent an "abstract"
5 * description of flash devices.
6 *
7 * A "region" is a consecutive group of erase units of the same size.
8 */
9
10 struct flash_region_desc {
11 uint32_t sector_size;
12 unsigned nsectors;
13 };
14
15 #define CFI_MAX_REGIONS 4
16
17 /*
18 * The info in struct flash_geom can be either
19 * gathered from CFI or hard-coded.
20 */
21 struct flash_geom {
22 uint32_t total_size;
23 unsigned nregions;
24 struct flash_region_desc regions[CFI_MAX_REGIONS];
25 unsigned total_sectors;
26 };
27
28 struct flash_idcheck {
29 uint16_t offset;
30 uint16_t expect_val;
31 };
32
33 struct flash_bank_desc {
34 uint32_t align_size;
35 struct flash_geom *geom;
36 struct flash_idcheck *idcheck_table;
37 unsigned idcheck_num;
38 };
39
40 struct flash_device_desc {
41 char *name;
42 struct flash_bank_desc *bank_desc;
43 unsigned nbanks;
44 struct flash_cmdset *cmdset;
45 };
46
47 /* the following structures describe flash banks as accessible to us */
48
49 struct sector_info {
50 uint32_t start;
51 uint32_t size;
52 };
53
54 struct flash_cmdset {
55 char *cmdset_name;
56 int (*reset_cmd)();
57 int (*status_cmd)();
58 int (*unlock_sector)();
59 int (*erase_sector)();
60 int (*prep_for_program)();
61 char *loadagent_setbase_cmd;
62 char *loadagent_program_cmd;
63 int needs_unlock;
64 };
65
66 struct flash_bank_info {
67 uint32_t base_addr;
68 struct flash_bank_desc *bank_desc;
69 struct flash_geom *geom;
70 struct flash_cmdset *ops;
71 struct sector_info *sectors;
72 int idcheck_done;
73 };