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fix irlen handling 

sometimes the master tap will be enabled, since tap switching is required during halt/lock/unlocking procedures.
now irscan handles this, avoiding unnecessary warnings and preventing errors.
__archive__
Rodrigo L. Rosa 2011-08-30 14:46:20 -07:00
parent eb0734de19
commit 573cbeac1e
1 changed files with 10 additions and 5 deletions
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15
src/target/dsp5680xx.c
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@ -90,12 +90,17 @@ static int dsp5680xx_irscan(struct target * target, uint32_t * data_to_shift_int
err_check(retval,"Invalid tap");
}
if (ir_len != target->tap->ir_length){
LOG_WARNING("%s: Invalid ir_len of core tap. If you are removing protection on flash then do not worry about this warninig.",__FUNCTION__);
//return ERROR_FAIL;//TODO this was commented out to enable unlocking using the master tap. did not find a way to enable the master tap without using tcl.
if(target->tap->enabled){
retval = ERROR_FAIL;
err_check(retval,"Invalid irlen");
}else{
struct jtag_tap * master_tap = jtag_tap_by_string("dsp568013.chp");
if((master_tap == NULL) || ((master_tap->enabled) && (ir_len != DSP5680XX_JTAG_MASTER_TAP_IRLEN))){
retval = ERROR_FAIL;
err_check(retval,"Invalid irlen");
}
}
}
//TODO what values of len are valid for jtag_add_plain_ir_scan?
//can i send as many bits as i want?
//is the casting necessary?
jtag_add_plain_ir_scan(ir_len,(uint8_t *)data_to_shift_into_ir,(uint8_t *)data_shifted_out_of_ir, TAP_IDLE);
if(dsp5680xx_context.flush){
retval = dsp5680xx_execute_queue();