tcl/target|board: add configs for Alphascale asm9260t

This adds configs for Alphascale asm9260t ARM based SoC and
Evaluation Kit based on this chip.

Change-Id: Id8d3a1ef204e3ae84540c2693e3d62650ba82f73
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/2515
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>

tcl/board/alphascale_asm9260_ek.cfg

@@ -0,0 +1,69 @@
+source [find target/alphascale_asm9260t.cfg]
+
+reset_config trst_and_srst
+
+$_TARGETNAME configure -event reset-init {
+	echo "Configure clock"
+	# Enable SRAM clk
+	mww 0x80040024 0x4
+	# Enable IRQ clk
+	mww 0x80040034 0x100
+	# Enable DMA0,1 clk
+	mww 0x80040024 0x600
+	# Make sysre syspll is enabled
+	mww 0x80040238 0x750
+	#CPU = PLLCLK/2
+	mww 0x8004017C 0x2
+	#SYSAHBCLK = CPUCLK/2
+	mww 0x80040180 0x2
+	# Set PLL freq to 480MHz
+	mww 0x80040100 480
+	# normally we shoul waiting here until we get 0x1 (0x80040104)&0x1)==0x0)
+	sleep 100
+
+	# select PLL as main source
+	mww 0x80040120 0x1
+	# disable and enble main clk to update changes?
+	mww 0x80040124 0x0
+	mww 0x80040124 0x1
+
+	echo "Configure memory"
+	#enable EMI CLK
+	mww 0x80040024 0x40
+
+	# configure memory controller for internal SRAM
+	mww 0x80700000 0x1188
+	# change default emi clk delay
+	mww 0x8004034C 0xA0503
+	# make sure chip_select_register2_low has correct value (why?)
+	mww 0x8070001c 0x20000000
+	# set type to sdram and size to 32MB
+	mww 0x8070005c 0xa
+	# configure internal SDRAM timing
+	mww 0x80700004 0x024996d9
+	# configure Static Memory timing
+	mww 0x80700094 0x00542b4f
+
+	echo "Configure uart4"
+	# enable pinctrl clk
+	mww 0x80040024 0x2000000
+	# mux GPIO3_0 and GPIO3_1 to UART4
+	mww 0x80044060 0x2
+	mww 0x80044064 0x2
+	# configure UART4CLKDIV
+	mww 0x800401a8 0x1
+	# enable uart4 clk
+	mww 0x80040024 0x8000
+	# clear softrst and clkgate on uart4
+	mww 0x80010008 0xC0000000
+	# set bandrate 115200 12M
+	mww 0x80010030 0x00062070
+	# enable Rx&Tx
+	mww 0x80010024 0x301
+	# clear hw control
+	mww 0x80010028 0xc000
+}
+
+$_TARGETNAME configure -work-area-phys 0x21ffe000 -work-area-virt 0xc1ffe000 -work-area-size 0x1000
+$_TARGETNAME arm7_9 fast_memory_access enable
+$_TARGETNAME arm7_9 dcc_downloads enable

tcl/target/alphascale_asm9260t.cfg

@@ -0,0 +1,25 @@
+if { [info exists CHIPNAME] } {
+	set _CHIPNAME $_CHIPNAME
+} else {
+	set _CHIPNAME asm9260t
+}
+
+if { [info exists ENDIAN] } {
+	set _ENDIAN $ENDIAN
+} else {
+	set _ENDIAN little
+}
+
+if { [info exists CPUTAPID] } {
+	set _CPUTAPID $CPUTAPID
+} else {
+	set _CPUTAPID 0x079264F3
+}
+
+# And srst_pulls_trst by chip design.
+reset_config srst_pulls_trst
+
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME