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annotate target-utils/libload/intelflash.c @ 404:7daea2476062

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loadagent: Intel flash support added, compiles
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 16 Jun 2014 01:15:17 +0000
parents
children d7f409493eb6
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404
7daea2476062 loadagent: Intel flash support added, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /*
7daea2476062 loadagent: Intel flash support added, compiles
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2 * This module implements the INFB and INFW commands for programming
7daea2476062 loadagent: Intel flash support added, compiles
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3 * Intel-style flash memories. The syntax and operation are exactly
7daea2476062 loadagent: Intel flash support added, compiles
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4 * the same as the AMD flash counterparts AMFB and AMFW.
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5 */
7daea2476062 loadagent: Intel flash support added, compiles
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6
7daea2476062 loadagent: Intel flash support added, compiles
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7 #include <sys/types.h>
7daea2476062 loadagent: Intel flash support added, compiles
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8 #include "types.h"
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9
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10 static u32 base_addr;
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11
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12 void
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13 cmd_INFB(argbulk)
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14 char *argbulk;
7daea2476062 loadagent: Intel flash support added, compiles
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15 {
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16 char *argv[2];
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17 u_long addr;
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18
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19 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
7daea2476062 loadagent: Intel flash support added, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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20 return;
7daea2476062 loadagent: Intel flash support added, compiles
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21 if (parse_hexarg(argv[0], 8, &addr) < 0) {
7daea2476062 loadagent: Intel flash support added, compiles
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22 printf("ERROR: argument must be a valid 32-bit hex address\n");
7daea2476062 loadagent: Intel flash support added, compiles
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23 return;
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24 }
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25 if (addr & 1) {
7daea2476062 loadagent: Intel flash support added, compiles
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26 printf("ERROR: odd address\n");
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27 return;
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28 }
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29 base_addr = addr;
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30 }
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31
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32 void
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33 cmd_INFW(argbulk)
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34 char *argbulk;
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35 {
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36 char *argv[3], *s;
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37 u_long offset;
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38 volatile u16 *flashptr;
7daea2476062 loadagent: Intel flash support added, compiles
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39 u32 datum; /* needs to be u32 for decode_hex_digits() */
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40 u16 stat;
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41 int i;
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42
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43 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
7daea2476062 loadagent: Intel flash support added, compiles
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44 return;
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45 if (parse_hexarg(argv[0], 8, &offset) < 0) {
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46 printf("ERROR: offset argument must a valid 32-bit hex value\n");
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47 return;
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48 }
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49 if (offset & 1) {
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50 printf("ERROR: odd offset argument\n");
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51 return;
7daea2476062 loadagent: Intel flash support added, compiles
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52 }
7daea2476062 loadagent: Intel flash support added, compiles
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53 flashptr = (volatile u16 *)(base_addr + offset);
7daea2476062 loadagent: Intel flash support added, compiles
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54 for (s = argv[1]; *s; flashptr++, s += 4) {
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55 if (decode_hex_digits(s, 4, &datum) < 0) {
7daea2476062 loadagent: Intel flash support added, compiles
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56 printf("ERROR: bad INFW hex string argument\n");
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57 return;
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58 }
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59 *flashptr = 0x40;
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60 *flashptr = datum;
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61 for (i = 10000; i; i--) {
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62 stat = *flashptr;
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63 if (stat & 0x80)
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64 break;
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65 }
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66 if (!i) {
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67 printf("ERROR: flash write timeout at %08X\n",
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68 (u_long) flashptr);
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69 return;
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70 }
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71 if (stat & 0x10) {
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72 printf("ERROR: program operation failed at %08X\n",
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73 (u_long) flashptr);
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74 return;
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75 }
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76 }
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77 }