Modifying JTAG entry sequence on GPIO driver

dalmago · Mar 2, 2018 · 75e52cf · 75e52cf
1 parent 7c41acd
commit 75e52cf
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Showing 2 changed files with 7 additions and 6 deletions.
diff --git a/drivers/jtaglib.c b/drivers/jtaglib.c
@@ -33,6 +33,7 @@
  */
 
 #include <stdlib.h>
+#include <unistd.h>
 #include "jtaglib.h"
 #include "output.h"
 #include "eem_defs.h"
@@ -412,21 +413,21 @@ unsigned int jtag_init(struct jtdev *p)
 {
 	unsigned int jtag_id;
 
-	jtag_rst_clr(p);
+	jtag_rst_set(p);
+	jtag_tst_clr(p);
+	usleep(1000);
 	p->f->jtdev_power_on(p);
+
 	jtag_tdi_set(p);
 	jtag_tms_set(p);
 	jtag_tck_set(p);
 	jtag_tclk_set(p);
 
-	jtag_rst_set(p);
-	jtag_tst_clr(p);
-
 	jtag_tst_set(p);
 	jtag_rst_clr(p);
 	jtag_tst_clr(p);
-
 	jtag_tst_set(p);
+	jtag_rst_set(p);
 
 	p->f->jtdev_connect(p);
 	jtag_rst_set(p);

diff --git a/drivers/jtdev_gpio.c b/drivers/jtdev_gpio.c
@@ -143,7 +143,7 @@ static void jtgpio_power_off(struct jtdev *p)
 
 static void jtgpio_connect(struct jtdev *p)
 {
-  printf("JTAG_connct \n");
+  printf("JTAG_connect \n");
 }
 
 static void jtgpio_release(struct jtdev *p)