FreeCalypso > hg > freecalypso-tools

annotate loadtools/flash.h @ 995:74024eb17e04

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fc-loadtool help: improve language regarding 16 MiB flash chips In FC project history, 16 MiB flash originally meant Pirelli DP-L10. Then we got FCDEV3B with the same flash (our own design), but now we are discovering more Calypso devices that used such large flash, both late Calypso era (Sony Ericsson K2x0) as well as much earlier ones (FIC FLUID devices.txt file with 2004 dates, Leonardo+ rev 5). Hence we need to migrate to more generic or neutral language in associated documentation, without giving elevated status to specific examples that drove our early project history.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 03 Dec 2023 21:11:12 +0000
parents c5133c3c11b1
children
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1 /* this header file contains definitions for fc-loadtool flash support */
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2
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3 /* global configuration */
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4 #define FLASH_GLOBAL_CFG_NONE 0
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5 #define FLASH_GLOBAL_CFG_SINGLE_4M 1
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6 #define FLASH_GLOBAL_CFG_SINGLE_8M 2
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7 #define FLASH_GLOBAL_CFG_DUAL_8M 3
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9 /*
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10 * The following structures represent an "abstract"
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11 * description of flash devices.
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12 *
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13 * A "region" is a consecutive group of erase units of the same size.
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14 */
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16 struct flash_region_desc {
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17 uint32_t sector_size;
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18 unsigned nsectors;
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19 };
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21 #define CFI_MAX_REGIONS 4
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23 /*
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24 * The info in struct flash_geom can be either
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25 * gathered from CFI or hard-coded.
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26 */
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27 struct flash_geom {
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28 uint32_t total_size;
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29 unsigned nregions;
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30 struct flash_region_desc regions[CFI_MAX_REGIONS];
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31 unsigned total_sectors;
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32 };
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33
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34 struct cfi_check {
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35 int offset;
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36 uint8_t expect_val;
0
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37 };
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39 /*
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40 * In order to examine non-volatile sector lock state of AMD-style flash
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41 * chips, we need to know how their sectors are grouped for the purpose
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42 * of locking: aggregation of sectors into groups that can only be locked
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43 * or unlocked as a unit, and also grouping into independent-read partitions
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44 * where each partition needs its own Autoselect sequence.
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45 */
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47 struct lock_group_desc {
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48 uint32_t block_size;
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49 unsigned nblocks;
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50 int is_group;
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51 int part_begin;
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52 int part_end;
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53 };
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55 #define MAX_AMD_LOCK_GROUPS 8
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56
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57 struct amd_lock_info {
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58 unsigned ngroups;
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59 struct lock_group_desc groups[MAX_AMD_LOCK_GROUPS];
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60 int have_status_word_3;
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61 int have_status_word_7;
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62 int have_mode_lock_bits;
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63 int have_pln_lock_reg;
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64 int (*ppb_program_one)();
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65 int (*ppb_program_all)();
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66 int (*ppb_erase_all)();
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67 };
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68
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69 struct flash_device {
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70 char *name;
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71 struct cfi_check *cfi_table;
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72 int required_global_config;
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73 struct flash_geom *bank_geom[2];
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74 struct flash_cmdset *cmdset;
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75 struct amd_lock_info *lock_info[2];
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76 };
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77
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78 /* the following structures describe flash banks as accessible to us */
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79
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80 struct sector_info {
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81 uint32_t start;
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82 uint32_t size;
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83 };
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84
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85 struct flash_cmdset {
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86 char *cmdset_name;
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87 int (*reset_cmd)();
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88 int (*status_cmd)();
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89 int (*unlock_sector)();
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90 int (*erase_sector)();
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91 int (*prep_for_program)();
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92 int (*read_prot_reg)();
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93 char *loadagent_setbase_cmd;
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94 char *loadagent_program_cmd;
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95 char *loadagent_binmode_cmd;
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96 int needs_unlock;
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97 };
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98
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99 struct flash_bank_info {
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100 uint32_t base_addr;
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101 struct flash_device *device;
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102 struct flash_geom *geom;
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103 struct flash_cmdset *ops;
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104 struct amd_lock_info *amd_lock;
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105 struct sector_info *sectors;
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106 int detect_done;
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107 };