sayma_amc: add Sayma AMC board definition

Change-Id: I4a3dc5fe2d81b6906099af8cc1a360b3cf4a6b80
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/4237
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>

tcl/board/sayma_amc.cfg

@@ -0,0 +1,45 @@
+# Sayma AMC is an FPGA board for the µTCA AMC format
+# The board is open hardware (CERN OHL) and the gateware and software
+# running on it are open source (ARTIQ, LGPLv3+).
+#
+# https://github.com/m-labs/sinara/wiki/Sayma
+#
+# It contains a Xilinx Kintex Ultrascale 040 FPGA (xcku040).
+# There is a SCANSTA112SM JTAG router on the board which is configured to
+# automatically add devices to the JTAG svcan chain when they are added.
+# Sayma AMC is usually combined with Sayma RTM (rear transition module)
+# which features an Artix 7 FPGA.
+
+interface ftdi
+ftdi_device_desc "Quad RS232-HS"
+ftdi_vid_pid 0x0403 0x6011
+ftdi_channel 0
+# Use this to distinguish multiple boards by topology
+#ftdi_location 5:1
+# sampling on falling edge generally seems to work and accelerates things but
+# is not fully tested
+#ftdi_tdo_sample_edge falling
+# EN_USB_JTAG on ADBUS7: out, high
+# USB_nTRST on ADBUS4: out, high, but R46 is DNP
+ftdi_layout_init 0x0098 0x008b
+#ftdi_layout_signal EN_USB -data 0x0080
+#ftdi_layout_signal nTRST -data 0x0010
+reset_config none
+
+adapter_khz 5000
+
+transport select jtag
+
+# Add the RTM Artix to the chain. Note that this changes the PLD numbering.
+# Unfortunately openocd TAPs can't be disabled after they have been added and
+# before `init`.
+#source [find cpld/xilinx-xc7.cfg]
+
+set CHIP XCKU040
+source [find cpld/xilinx-xcu.cfg]
+
+set XILINX_USER1 0x02
+set XILINX_USER2 0x03
+set JTAGSPI_IR $XILINX_USER1
+source [find cpld/jtagspi.cfg]
+flash bank xcu.spi1 jtagspi 0 0 0 0 xcu.proxy $XILINX_USER2