tcl/interface/ftdi: Add imx8mp-evk internal JTAG interface

The imx8mp-evk board has a FT4232H chip connected to the chip's JTAG
pins.

Switching between this on-board interface and the external ARM-10
connector is controlled by an GPIO which is behind an i2c expander
connected to the same FTDI chip.

Switching can be performed using the NXP bcu tool:

	https://github.com/NXPmicro/bcu

Change-Id: Ic910515f76eaf09ea6d0f755b026fb09cf09ccfc
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-on: http://openocd.zylin.com/5426
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>

diff --git a/tcl/interface/ftdi/imx8mp-evk.cfg b/tcl/interface/ftdi/imx8mp-evk.cfg
new file mode 100644 (file)
index 0000000..4e04e8c
--- /dev/null
+++ b/tcl/interface/ftdi/imx8mp-evk.cfg
@@ -0,0 +1,28 @@
+#
+# Configuration file for NXP MC-IMX8MP-EVK on-board internal JTAG
+#
+# Using this interface requires enabling "remote mode" for the board using the
+# NXP bcu tool (see https://github.com/NXPmicro/bcu)
+#
+#      bcu set_gpio remote_en 1 -board=imx8mpevk
+#
+# The REMOTE_EN gpio is accessible through the same FTDI adapter but it's
+# behind an I2C GPIO expander.
+#
+
+adapter driver ftdi
+ftdi_vid_pid 0x0403 0x6011
+ftdi_channel 0
+
+ftdi_layout_init 0x00f8 0x000b
+
+ftdi_layout_signal RESET_B     -data 0x0010 -oe 0x0010
+# Called SYS_nRST in schematics
+ftdi_layout_signal nSRST       -data 0x0020 -oe 0x0020
+ftdi_layout_signal IO_nRST     -data 0x0040 -oe 0x0040
+ftdi_layout_signal ONOFF_B     -data 0x0080 -oe 0x0080
+
+ftdi_layout_signal GPIO1       -data 0x0100 -oe 0x0100
+ftdi_layout_signal GPIO2       -data 0x0200 -oe 0x0200
+ftdi_layout_signal GPIO3       -data 0x0400 -oe 0x0400
+ftdi_layout_signal GPIO4       -data 0x0800 -oe 0x0800