FreeCalypso > hg > freecalypso-tools

annotate target-utils/libtiffs/init.c @ 505:7bf0d909c87e

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fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents c10a65f7563e
children
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1 #include "types.h"
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2 #include "struct.h"
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3 #include "globals.h"
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4 #include "macros.h"
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5
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6 static const u8 ffs_sector_signature[6] = {'F', 'f', 's', '#', 0x10, 0x02};
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7
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8 static
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9 find_indexblk()
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10 {
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11 u32 sector_addr;
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12 u8 *sector_ptr;
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13 int i;
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15 printf("Looking for TIFFS active index block\n");
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16 sector_addr = tiffs_base_addr;
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17 for (i = 0; i < tiffs_nsectors; i++) {
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18 sector_ptr = (u8 *) sector_addr;
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19 if (!bcmp(sector_ptr, ffs_sector_signature, 6) &&
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20 sector_ptr[8] == 0xAB) {
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21 printf("Found at %08X\n", sector_addr);
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22 tiffs_active_index = (struct inode *) sector_ptr;
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23 return(0);
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24 }
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25 sector_addr += tiffs_sector_size;
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26 }
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27 printf("Error: Not found in any of the %d candidate sectors\n",
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28 tiffs_nsectors);
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29 return(-1);
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30 }
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32 static
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33 find_rootino()
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34 {
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35 int ino;
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36 struct inode *irec;
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37
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38 printf("Looking for the root inode\n");
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39 for (ino = 1; ; ino++) {
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40 if (ino >= tiffs_sector_size >> 4) {
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41 printf("Error: Hit end of sector, no root inode found\n");
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42 return(-1);
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43 }
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44 irec = tiffs_active_index + ino;
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45 if (irec->type == OBJTYPE_DIR && *inode_to_dataptr(irec) == '/')
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46 break;
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47 }
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48 printf("Found at inode #%x\n", ino);
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49 tiffs_root_ino = ino;
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50 return(0);
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51 }
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53 tiffs_init()
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54 {
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55 int stat;
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57 if (tiffs_init_done)
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58 return(0);
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59 stat = find_indexblk();
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60 if (stat < 0)
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61 return(stat);
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62 stat = find_rootino();
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63 if (stat < 0)
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64 return(stat);
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65 tiffs_init_done = 1;
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66 return(0);
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67 }