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Reset JTAG/DMI

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request is never initialized and we leak X state control signals to other
parts of the core (eg dmi_wr). Add a reset.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
This commit is contained in:
Anton Blanchard
2020-12-15 14:27:26 +11:00
committed by Anton Blanchard
parent d96ee21c39
commit 5eb351b4be
1 changed files with 3 additions and 2 deletions
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5
dmi_dtm_xilinx.vhdl
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@@ -222,11 +222,12 @@ begin
-- jtag_req latch. Could be split into 3 processes but it's probably
-- not worthwhile.
--
shifter: process(jtag_clk, jtag_reset)
shifter: process(jtag_clk, jtag_reset, sys_reset)
begin
if jtag_reset = '1' then
if jtag_reset = '1' or sys_reset = '1' then
shiftr <= (others => '0');
jtag_req <= '0';
request <= (others => '0');
elsif rising_edge(jtag_clk) then
-- Handle jtag "commands" when sel is 1