Support for driving RISC-V DM via Arty's own JTAG chain using BSCAN tunnel (#370)

Including adjustments in response to review comments.
2019-04-23 16:25:22 -07:00
parent 15f2d35bc6
commit 5190dd4cef
7 changed files with 268 additions and 2 deletions
@@ -9502,6 +9502,11 @@ When utilizing version 0.11 of the RISC-V Debug Specification,
 and DBUS registers, respectively.
@end deffn

+@deffn Command {riscv use_bscan_tunnel} value
+Enable or disable use of a BSCAN tunnel to reach DM.  Supply the width of
+the DM transport TAP's instruction register to enable.  Supply a value of 0 to disable.
+@end deffn
+
@subsection RISC-V Authentication Commands

 The following commands can be used to authenticate to a RISC-V system. Eg.  a