Add support for prodsig read and usersig read/write
Currently only supported by the Xboot bootloader
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8f478f0098
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31c3db2617
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@ -494,9 +494,13 @@ static int butterfly_read_byte_flash(const PROGRAMMER *pgm, const AVRPART *p, co
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} else {
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} else {
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butterfly_set_addr(pgm, addr >> 1);
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butterfly_set_addr(pgm, addr >> 1);
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}
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}
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// Defaults to flash read ('F')
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butterfly_send(pgm, "g\000\002F", 4);
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char msg[4] = {'g', 0x00, 0x02, 'F'};
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if (strcmp(m->desc, "prodsig") == 0)
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msg[3] = 'P';
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else if (strcmp(m->desc, "usersig") == 0)
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msg[3] = 'U';
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butterfly_send(pgm, msg, 4);
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/* Read back the program mem word (MSB first) */
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/* Read back the program mem word (MSB first) */
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butterfly_recv(pgm, buf, sizeof(buf));
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butterfly_recv(pgm, buf, sizeof(buf));
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@ -539,7 +543,9 @@ static int butterfly_read_byte(const PROGRAMMER *pgm, const AVRPART *p, const AV
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{
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{
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char cmd;
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char cmd;
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if (strcmp(m->desc, "flash") == 0) {
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if (strcmp(m->desc, "flash") == 0 ||
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strcmp(m->desc, "prodsig") == 0 ||
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strcmp(m->desc, "usersig") == 0) {
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return butterfly_read_byte_flash(pgm, p, m, addr, value);
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return butterfly_read_byte_flash(pgm, p, m, addr, value);
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}
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}
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@ -580,7 +586,9 @@ static int butterfly_paged_write(const PROGRAMMER *pgm, const AVRPART *p, const
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int use_ext_addr = m->op[AVR_OP_LOAD_EXT_ADDR] != NULL;
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int use_ext_addr = m->op[AVR_OP_LOAD_EXT_ADDR] != NULL;
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unsigned int wr_size = 2;
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unsigned int wr_size = 2;
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if (strcmp(m->desc, "flash") && strcmp(m->desc, "eeprom"))
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if (strcmp(m->desc, "flash") &&
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strcmp(m->desc, "eeprom") &&
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strcmp(m->desc, "usersig"))
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return -2;
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return -2;
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if (m->desc[0] == 'e')
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if (m->desc[0] == 'e')
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@ -634,8 +642,10 @@ static int butterfly_paged_load(const PROGRAMMER *pgm, const AVRPART *p, const A
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int blocksize = PDATA(pgm)->buffersize;
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int blocksize = PDATA(pgm)->buffersize;
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int use_ext_addr = m->op[AVR_OP_LOAD_EXT_ADDR] != NULL;
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int use_ext_addr = m->op[AVR_OP_LOAD_EXT_ADDR] != NULL;
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/* check parameter syntax: only "flash" or "eeprom" is allowed */
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/* check parameter syntax: only "flash", "eeprom" or "usersig" is allowed */
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if (strcmp(m->desc, "flash") && strcmp(m->desc, "eeprom"))
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if (strcmp(m->desc, "flash") &&
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strcmp(m->desc, "eeprom") &&
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strcmp(m->desc, "usersig"))
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return -2;
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return -2;
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if (m->desc[0] == 'e')
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if (m->desc[0] == 'e')
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