FreeCalypso > hg > freecalypso-tools

annotate loadtools/flash.h @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents e7502631a0f9
children 0dd2c87c1b63
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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 /*
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4 * The following structures represent an "abstract"
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5 * description of flash devices.
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6 *
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7 * A "region" is a consecutive group of erase units of the same size.
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8 */
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9
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10 struct flash_region_desc {
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11 uint32_t sector_size;
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12 unsigned nsectors;
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13 };
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14
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15 #define CFI_MAX_REGIONS 4
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16
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17 /*
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18 * The info in struct flash_geom can be either
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19 * gathered from CFI or hard-coded.
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20 */
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21 struct flash_geom {
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22 uint32_t total_size;
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23 unsigned nregions;
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24 struct flash_region_desc regions[CFI_MAX_REGIONS];
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25 unsigned total_sectors;
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26 };
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27
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28 struct flash_idcheck {
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29 uint16_t offset;
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30 uint16_t expect_val;
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31 };
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32
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33 struct flash_bank_desc {
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34 uint32_t align_size;
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35 struct flash_geom *geom;
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36 struct flash_idcheck *idcheck_table;
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37 unsigned idcheck_num;
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38 };
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39
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40 struct flash_device_desc {
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41 char *name;
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42 struct flash_bank_desc *bank_desc;
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43 unsigned nbanks;
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44 struct flash_cmdset *cmdset;
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45 };
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46
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47 /* the following structures describe flash banks as accessible to us */
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48
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49 struct sector_info {
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50 uint32_t start;
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51 uint32_t size;
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52 };
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53
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54 struct flash_cmdset {
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55 char *cmdset_name;
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56 int (*reset_cmd)();
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57 int (*status_cmd)();
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58 int (*unlock_sector)();
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59 int (*erase_sector)();
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60 int (*prep_for_program)();
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61 char *loadagent_setbase_cmd;
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62 char *loadagent_program_cmd;
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63 int needs_unlock;
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64 };
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65
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66 struct flash_bank_info {
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67 uint32_t base_addr;
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68 struct flash_bank_desc *bank_desc;
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69 struct flash_geom *geom;
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70 struct flash_cmdset *ops;
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71 struct sector_info *sectors;
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72 int idcheck_done;
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73 };