[PATCH]: d9b5944f20 arm_adi_v5: Also clear sticky overrun bit on init

[gerrit]

This is an automated email from Gerrit.

"Peter Collingbourne <p...@google.com>" just uploaded a new patch set to 
Gerrit, which you can find at https://review.openocd.org/c/openocd/+/8420

-- gerrit

commit d9b5944f20645e4e83fe54c1b0373519a8a1e228
Author: Peter Collingbourne <p...@google.com>
Date:   Tue Jul 30 18:03:33 2024 -0700

    arm_adi_v5: Also clear sticky overrun bit on init
    
    Some targets start up with the sticky overrun bit set. On such targets
    we need to clear it in order to avoid subsequent incorrect reads.
    
    Change-Id: I3e939a9e092de6fcea9494d3179a3386aa1701d2
    Signed-off-by: Peter Collingbourne <p...@google.com>

diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c
index 9129acecf9..b232214c09 100644
--- a/src/target/arm_adi_v5.c
+++ b/src/target/arm_adi_v5.c
@@ -795,11 +795,12 @@ int dap_dp_init(struct adiv5_dap *dap)
        dap->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ;
 
        /*
-        * This write operation clears the sticky error bit in jtag mode only 
and
-        * is ignored in swd mode. It also powers-up system and debug domains in
-        * both jtag and swd modes, if not done before.
+        * This write operation clears the sticky error and overrun bits in jtag
+        * mode only and is ignored in swd mode. It also powers-up system and
+        * debug domains in both jtag and swd modes, if not done before.
         */
-       retval = dap_queue_dp_write(dap, DP_CTRL_STAT, dap->dp_ctrl_stat | 
SSTICKYERR);
+       retval = dap_queue_dp_write(
+               dap, DP_CTRL_STAT, dap->dp_ctrl_stat | SSTICKYERR | 
SSTICKYORUN);
        if (retval != ERROR_OK)
                return retval;
 

--