Change in flashrom[master]: ft2232_spi.c: Add support for kt-link jtag interface

[Jacek Naglak (Code Review)]

Jacek Naglak has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/64440 )

Change subject: ft2232_spi.c: Add support for kt-link jtag interface
......................................................................

ft2232_spi.c: Add support for kt-link jtag interface

Change tested writing, reading and erasing spi flashes
pinout:
  jtag - spi
 1 vcc - vcc, wp#, hold#
 4 gnd - gnd
 5 tdi - si
 7 tms - cs#
 9 tck - sck
13 tdo - so
Connect pins 9 and 12 in EXT connector for 3.3V power.

Signed-off-by: Jacek Naglak 
Change-Id: Id58c675bc410ec3ef6d58603d13efc9ca53bb87c
---
M ft2232_spi.c
1 file changed, 25 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/40/64440/1

diff --git a/ft2232_spi.c b/ft2232_spi.c
index bafed40..072eb38 100644
--- a/ft2232_spi.c
+++ b/ft2232_spi.c
@@ -58,6 +58,8 @@
 #define GOOGLE_SERVO_V2_PID0	0x5002
 #define GOOGLE_SERVO_V2_PID1	0x5003

+#define KT_LINK_PID		0xbbe2
+
 static const struct dev_entry devs_ft2232spi[] = {
    {FTDI_VID, FTDI_FT2232H_PID, OK, "FTDI", "FT2232H"},
    {FTDI_VID, FTDI_FT4232H_PID, OK, "FTDI", "FT4232H"},
@@ -75,6 +77,7 @@
    {OLIMEX_VID, OLIMEX_ARM_TINY_PID, OK, "Olimex", "ARM-USB-TINY"},
    {OLIMEX_VID, OLIMEX_ARM_OCD_H_PID, OK, "Olimex", "ARM-USB-OCD-H"},
    {OLIMEX_VID, OLIMEX_ARM_TINY_H_PID, OK, "Olimex", "ARM-USB-TINY-H"},
+	{FTDI_VID, KT_LINK_PID, OK, "Kristech", "KT-LINK"},

{0},
 };
@@ -420,6 +423,13 @@
    		/* Flyswatter and Flyswatter-2 require GPIO bits 0x80
    		 * and 0x40 to be driven low to enable output buffers */
    		pindir = 0xcb;
+		} else if (!strcasecmp(arg, "kt-link")) {
+			ft2232_type = KT_LINK_PID;
+			/* port B is used as uart */
+			channel_count = 1;
+			/* Set GPIOL1 output high - enable TMS */
+			aux_bits = 0x20;
+			pindir = 0x2b;
    	} else {
    		msg_perr("Error: Invalid device type specified.\n");
    		free(arg);
@@ -658,6 +668,21 @@
    	goto ftdi_err;
    }

+	if ( ft2232_type == KT_LINK_PID) {
+		/* Enable kt-link jtag interface
+		*  Set GPIOH4 output low - enable TMS
+		*  Set GPIOH5 output low - enable TDI
+		*  Set GPIOH6 output low - enable TCK */
+		msg_pdbg("Set data bits HighByte\n");
+		buf[0] = SET_BITS_HIGH;
+		buf[1] = 0x00;
+		buf[2] = 0x70;
+		if (send_buf(&ftdic, buf, 3)) {
+			ret = -8;
+			goto ftdi_err;
+		}
+	} 
+
    spi_data = calloc(1, sizeof(*spi_data));
    if (!spi_data) {
    	msg_perr("Unable to allocate space for SPI master data\n");