jtag/drivers cmsis-dap: fix speed setting on Atmel EDBG

[openocd.git] / src / jtag / drivers / cmsis_dap_usb.c

diff --git a/src/jtag/drivers/cmsis_dap_usb.c b/src/jtag/drivers/cmsis_dap_usb.c
index dd37522ad169e595cc05cedd0a2f3caed93e0cdb..cffd5e7f1a60cd1df66bef47e06161e1062ba181 100644 (file)
--- a/src/jtag/drivers/cmsis_dap_usb.c
+++ b/src/jtag/drivers/cmsis_dap_usb.c
@@ -821,7 +821,13 @@ static int cmsis_dap_swd_switch_seq(enum swd_special_seq seq)
                return ERROR_FAIL;
        }
 
-       return cmsis_dap_cmd_DAP_SWJ_Sequence(s_len, s);
+       retval = cmsis_dap_cmd_DAP_SWJ_Sequence(s_len, s);
+       if (retval != ERROR_OK)
+               return retval;
+
+       /* Atmel EDBG needs renew clock setting after SWJ_Sequence
+        * otherwise default frequency is used */
+       return cmsis_dap_cmd_DAP_SWJ_Clock(jtag_get_speed_khz());
 }
 
 static int cmsis_dap_swd_open(void)