The SWDIO buffer has to be enabled, by setting SWDIO_OE, for data on
SWDIO to reach the target. Explicitly do this before sending the
switch sequences for JTAG-to-SWD, etc.
This makes the code insensitive to the state of SWDIO_OE specified in
ftdi_layout_init. It used to work only on adapters with a non-inverted
SWDIO_OE inited to 1, or inverted SWDIO_OE inited to 0.
Change-Id: I4b9e520ac1c7ce2a437251a05fc036bc68de718e
Signed-off-by: Jonas Norling <jonas.norling@cyanconnode.com>
Reviewed-on: http://openocd.zylin.com/4270
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
switch (seq) {
case LINE_RESET:
LOG_DEBUG("SWD line reset");
switch (seq) {
case LINE_RESET:
LOG_DEBUG("SWD line reset");
+ ftdi_swd_swdio_en(true);
mpsse_clock_data_out(mpsse_ctx, swd_seq_line_reset, 0, swd_seq_line_reset_len, SWD_MODE);
break;
case JTAG_TO_SWD:
LOG_DEBUG("JTAG-to-SWD");
mpsse_clock_data_out(mpsse_ctx, swd_seq_line_reset, 0, swd_seq_line_reset_len, SWD_MODE);
break;
case JTAG_TO_SWD:
LOG_DEBUG("JTAG-to-SWD");
+ ftdi_swd_swdio_en(true);
mpsse_clock_data_out(mpsse_ctx, swd_seq_jtag_to_swd, 0, swd_seq_jtag_to_swd_len, SWD_MODE);
break;
case SWD_TO_JTAG:
LOG_DEBUG("SWD-to-JTAG");
mpsse_clock_data_out(mpsse_ctx, swd_seq_jtag_to_swd, 0, swd_seq_jtag_to_swd_len, SWD_MODE);
break;
case SWD_TO_JTAG:
LOG_DEBUG("SWD-to-JTAG");
+ ftdi_swd_swdio_en(true);
mpsse_clock_data_out(mpsse_ctx, swd_seq_swd_to_jtag, 0, swd_seq_swd_to_jtag_len, SWD_MODE);
break;
default:
mpsse_clock_data_out(mpsse_ctx, swd_seq_swd_to_jtag, 0, swd_seq_swd_to_jtag_len, SWD_MODE);
break;
default:
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