X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fjtag%2Fft2232.c;h=fa27d9006d28b4e1e70442823ed25fbafe7fedbb;hb=98da554bbd560fa5af0c639140fe34e211bf38da;hp=2a8c7387aab7099360dff52adacdc83ce2ba71b9;hpb=5ed126c4f90948fbf53d186dc4ef49018fb5ecfc;p=openocd.git

diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c
index 2a8c7387aa..fa27d9006d 100644
--- a/src/jtag/ft2232.c
+++ b/src/jtag/ft2232.c
@@ -93,15 +93,18 @@ int usbjtag_init(void);
 int jtagkey_init(void);
 int olimex_jtag_init(void);
 int m5960_init(void);
+int turtle_init(void);
 
 /* reset procedures for supported layouts */
 void usbjtag_reset(int trst, int srst);
 void jtagkey_reset(int trst, int srst);
 void olimex_jtag_reset(int trst, int srst);
 void m5960_reset(int trst, int srst);
+void turtle_reset(int trst, int srst);
 
 /* blink procedures for layouts that support a blinking led */
 void olimex_jtag_blink(void);
+void turtle_jtag_blink(void);
 
 ft2232_layout_t ft2232_layouts[] =
 {
@@ -113,6 +116,7 @@ ft2232_layout_t ft2232_layouts[] =
 	{"evb_lm3s811", usbjtag_init, usbjtag_reset, NULL},
 	{"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink},
 	{"m5960", m5960_init, m5960_reset, NULL},
+        {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
 	{NULL, NULL, NULL},
 };
 
@@ -1002,6 +1006,26 @@ void m5960_reset(int trst, int srst)
     DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
 }
 
+void turtle_reset(int trst, int srst)
+{
+  trst = trst;
+  
+	if (srst == 1)
+	{
+  	low_output |= nSRST;
+	}
+	else if (srst == 0)
+	{
+		low_output &= ~nSRST;
+	}
+	
+	/* command "set data bits high byte" */
+	BUFFER_ADD = 0x80;
+	BUFFER_ADD = low_output;
+	BUFFER_ADD = low_direction;
+	DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
+}
+
 int ft2232_execute_queue()
 {
 	jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
@@ -1682,6 +1706,46 @@ int m5960_init(void)
 	return ERROR_OK;
 }
 
+int turtle_init(void)
+{
+	u8 buf[3];
+	u32 bytes_written;
+	
+	low_output = 0x08;
+	low_direction = 0x5b;
+	
+	/* initialize low byte for jtag */
+	buf[0] = 0x80; /* command "set data bits low byte" */
+	buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
+	buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+	DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+	
+	if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+	{
+		ERROR("couldn't initialize FT2232 with 'turtelizer2' layout"); 
+		return ERROR_JTAG_INIT_FAILED;
+	}
+	
+  nSRST = 0x40;
+  	
+	high_output = 0x00;
+	high_direction = 0x0C;
+	
+	/* initialize high port */
+	buf[0] = 0x82; /* command "set data bits high byte" */
+	buf[1] = high_output;
+	buf[2] = high_direction;
+	DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+	
+	if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+	{
+		ERROR("couldn't initialize FT2232 with 'turtelizer2' layout"); 
+		return ERROR_JTAG_INIT_FAILED;
+	}
+	
+	return ERROR_OK;
+}
+
 void olimex_jtag_blink(void)
 {
 	/* Olimex ARM-USB-OCD has a LED connected to ACBUS3
@@ -1703,6 +1767,26 @@ void olimex_jtag_blink(void)
 	BUFFER_ADD = high_direction;
 }
 
+void turtle_jtag_blink(void)
+{
+	/* 
+   * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
+	 */
+	if (high_output & 0x08)
+	{
+		high_output = 0x04;
+	}
+	else
+	{
+		high_output = 0x08;
+	}
+	
+	BUFFER_ADD = 0x82;
+	BUFFER_ADD = high_output;
+	BUFFER_ADD = high_direction;
+}
+
+
 int ft2232_quit(void)
 {
 #if BUILD_FT2232_FTD2XX == 1