FreeCalypso > hg > freecalypso-sw
annotate loadtools/flash.h @ 400:f027c6fbe37e
fc-loadtool flash: first round of refactoring for CFI
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Sun, 15 Jun 2014 20:05:54 +0000 |
parents | 99c234bf6a9b |
children | a212b4968b29 |
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loadtools: started laying the foundation for flash support
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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 /* The info in struct cfi_info can be either gathered from CFI or hard-coded. */ |
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18 struct cfi_info { |
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19 uint16_t cmdset_style; |
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20 uint32_t total_size; |
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21 unsigned nregions; |
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22 struct flash_region_desc regions[CFI_MAX_REGIONS]; |
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23 unsigned total_sectors; |
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24 }; |
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25 |
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26 struct flash_idcheck { |
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27 uint16_t offset; |
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28 uint16_t expect_val; |
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29 }; |
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30 |
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31 struct flash_bank_desc { |
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32 uint32_t align_size; |
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33 struct cfi_info *hard_cfi; |
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34 struct flash_idcheck *idcheck_table; |
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35 unsigned idcheck_num; |
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36 }; |
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37 |
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38 struct flash_device_desc { |
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39 char *name; |
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40 struct flash_bank_desc *bank_desc; |
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41 unsigned nbanks; |
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42 }; |
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43 |
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44 /* the following structures describe flash banks as accessible to us */ |
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45 |
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46 struct sector_info { |
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47 uint32_t start; |
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48 uint32_t size; |
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49 }; |
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50 |
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51 struct flash_bank_info { |
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52 uint32_t base_addr; |
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53 struct flash_bank_desc *bank_desc; |
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54 struct cfi_info *cfi; |
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55 struct sector_info *sectors; |
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56 int idcheck_done; |
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57 }; |