FreeCalypso > hg > freecalypso-tools

annotate target-utils/loadagent/intelflash.c @ 951:297c7d5b57a2

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doc/Rvinterf-logs: new document
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 07 Jun 2023 07:52:55 +0000
parents b34384991094
children
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0
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1 /*
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2 * This module implements the INFB and INFW commands for programming
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3 * Intel-style flash memories. The syntax and operation are exactly
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4 * the same as the AMD flash counterparts AMFB and AMFW.
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5 *
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6 * The intel-rewrite-sector command (erase+program with a minimum of
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7 * vulnerability for brickable-boot Compal phones) is implemented
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8 * here as well.
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9 */
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10
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11 #include <sys/types.h>
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12 #include "types.h"
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13
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14 static u32 base_addr;
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15
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16 void
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17 cmd_INFB(argbulk)
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18 char *argbulk;
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19 {
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20 char *argv[2];
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21 u_long addr;
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22
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23 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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24 return;
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25 if (parse_hexarg(argv[0], 8, &addr) < 0) {
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26 printf("ERROR: argument must be a valid 32-bit hex address\n");
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27 return;
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28 }
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29 if (addr & 1) {
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30 printf("ERROR: odd address\n");
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31 return;
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32 }
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33 base_addr = addr;
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34 }
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35
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36 void
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37 cmd_INFW(argbulk)
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38 char *argbulk;
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39 {
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40 char *argv[3], *s;
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41 u_long offset;
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42 volatile u16 *flashptr;
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43 u32 datum; /* needs to be u32 for decode_hex_digits() */
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44 u16 stat;
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45 int i;
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46
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47 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
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48 return;
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49 if (parse_hexarg(argv[0], 8, &offset) < 0) {
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50 printf("ERROR: offset argument must a valid 32-bit hex value\n");
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51 return;
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52 }
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53 if (offset & 1) {
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54 printf("ERROR: odd offset argument\n");
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55 return;
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56 }
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57 flashptr = (volatile u16 *)(base_addr + offset);
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58 for (s = argv[1]; *s; flashptr++, s += 4) {
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59 if (decode_hex_digits(s, 4, &datum) < 0) {
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60 printf("ERROR: bad INFW hex string argument\n");
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61 return;
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62 }
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63 *flashptr = 0x40;
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64 *flashptr = datum;
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65 for (i = 10000; i; i--) {
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66 stat = *flashptr;
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67 if (stat & 0x80)
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68 break;
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69 }
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70 if (!i) {
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71 printf("ERROR: flash write timeout at %08X\n",
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72 (u_long) flashptr);
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73 return;
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74 }
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75 if (stat & 0x10) {
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76 printf("ERROR: program operation failed at %08X\n",
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77 (u_long) flashptr);
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78 return;
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79 }
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80 }
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81 }
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82
659
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83 intelflash_binary_prog(offset, nwords, data)
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84 u32 offset;
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85 unsigned nwords;
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86 u16 *data;
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87 {
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88 volatile u16 *flashptr;
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89 u16 stat;
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90 int i;
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91
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92 flashptr = (volatile u16 *)(base_addr + offset);
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93 while (nwords) {
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94 *flashptr = 0x40;
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95 *flashptr = *data;
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96 for (i = 10000; i; i--) {
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97 stat = *flashptr;
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98 if (stat & 0x80)
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99 break;
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100 }
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101 if (!i) {
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102 serial_out(0x15); /* NAK */
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103 printf("ERROR: flash write timeout at %08X\n",
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104 (u_long) flashptr);
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105 return(-1);
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106 }
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107 if (stat & 0x10) {
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108 serial_out(0x15); /* NAK */
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109 printf("ERROR: program operation failed at %08X\n",
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110 (u_long) flashptr);
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111 return(-1);
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112 }
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113 flashptr++;
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114 data++;
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115 nwords--;
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116 }
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117 return(0);
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118 }
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119
0
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120 void
660
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121 cmd_INFWB()
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122 {
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parents: 659
diff changeset
123 binary_flash_prog_main(intelflash_binary_prog);
b34384991094 loadagent: implemented binary flash programming
Mychaela Falconia <falcon@freecalypso.org>
parents: 659
diff changeset
124 }
b34384991094 loadagent: implemented binary flash programming
Mychaela Falconia <falcon@freecalypso.org>
parents: 659
diff changeset
125
b34384991094 loadagent: implemented binary flash programming
Mychaela Falconia <falcon@freecalypso.org>
parents: 659
diff changeset
126 void
0
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 cmd_intel_rewrite_sector(argbulk)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 char *argbulk;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 char *argv[4];
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 u_long srcaddr, dstaddr, len;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 const u16 *srcptr;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 volatile u16 *flashptr;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 u16 stat;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 if (parse_args(argbulk, 3, 3, argv, 0) < 0)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 if (parse_hexarg(argv[0], 8, &srcaddr) < 0) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 invarg: printf("ERROR: invalid argument(s)\n");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 if (parse_hexarg(argv[1], 8, &dstaddr) < 0)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 goto invarg;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 if (parse_hexarg(argv[2], 8, &len) < 0)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 goto invarg;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 if (srcaddr & 1 || dstaddr & 1 || len & 1) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 printf("ERROR: all 3 arguments must be even\n");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 srcptr = (const u16 *) srcaddr;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 flashptr = (volatile u16 *) dstaddr;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 /* unlock the flash sector first */
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 *flashptr = 0x60;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 *flashptr = 0xD0;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 /* clear SR */
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 *flashptr = 0x50;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 /* erase */
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 *flashptr = 0x20;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 *flashptr = 0xD0;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 /* wait for erase completion */
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 for (;;) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 stat = *flashptr;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 if (stat & 0x80)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 break;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 if (stat & 0x30) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 printf("ERROR: erase operation failed!\n");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 /* now program the new content */
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 for (; len; len -= 2) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 *flashptr = 0x40;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 *flashptr = *srcptr++;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 for (;;) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 stat = *flashptr;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 if (stat & 0x80)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 break;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 flashptr++;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 printf("Operation complete, final SR: %02X\n", stat & 0xFF);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 }