TCL: Add board file for EVAL_SPEAr320CPU

Initial support for SPEAr320 chip and for evaluation
board named EVAL_SPEAr320CPU.

Change-Id: I85524655769bcc610294a26db47a7a399256fbb7
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/231
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

tcl/board/spear320cpu.cfg

@@ -0,0 +1,44 @@
+# Configuration for the ST SPEAr320 CPU board
+# EVAL_SPEAr320CPU Rev. 2.0
+# http://www.st.com/spear
+#
+# Date:      2011-11-18
+# Author:    Antonio Borneo <borneo.antonio@gmail.com>
+
+# The standard board has JTAG SRST not connected.
+# This script targets such boards using quirky code to bypass the issue.
+
+
+source [find mem_helper.tcl]
+source [find target/spear3xx.cfg]
+source [find chip/st/spear/spear3xx_ddr.tcl]
+source [find chip/st/spear/spear3xx.tcl]
+
+arm7_9 dcc_downloads enable
+arm7_9 fast_memory_access enable
+
+
+# Serial NOR on SMI CS0. 8Mbyte.
+set _FLASHNAME1 $_CHIPNAME.snor
+flash bank $_FLASHNAME1 stmsmi 0xf8000000 0 0 0 $_TARGETNAME
+
+if { [info exists BOARD_HAS_SRST] } {
+	# Modified board has SRST on JTAG connector
+	reset_config trst_and_srst separate srst_gates_jtag \
+		trst_push_pull srst_open_drain
+} else {
+	# Standard board has no SRST on JTAG connector
+	reset_config trst_only separate srst_gates_jtag trst_push_pull
+	source [find chip/st/spear/quirk_no_srst.tcl]
+}
+
+$_TARGETNAME configure -event reset-init { spear320cpu_init }
+
+proc spear320cpu_init {} {
+	reg pc 0xffff0020;	# loop forever
+
+	sp3xx_clock_default
+	sp3xx_common_init
+	sp3xx_ddr_init "mt47h64m16_3_333_cl5_async" $DDR_CHIPS
+	sp320_init
+}