Add target/mc13224v.cfg

The MC13224V is a FreeScale ARM7TDMI based IEEE802.15.4 platform for
Zigbee and similar low-power wireless applications. Using PIP
(Platform In Package) technology, it integrates: an RF balun and
matching network; a buck converter (only an external inductor is
necessary); 96KB of SRAM; and 128KB of non-volatile memory.

It has an integrated bootloader and can boot from a variety of sources:
external SPI or I2C non-volatile memory, an image loaded over UART1,
or the internal non-volatile memory. The image loaded from one of these
sources is executed directly from SRAM starting at location 0x00400000.

Open source development code at http://mc1322x.devl.org



Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

tcl/target/mc13224v.cfg

+source [find bitsbytes.tcl]
+source [find cpu/arm/arm7tdmi.tcl]
+source [find memory.tcl]
+source [find mmr_helpers.tcl]
+
+set CHIP_MAKER  freescale
+set CHIP_FAMILY mc1322x
+set CHIP_NAME  mc13224
+set N_RAM 1
+set RAM(0,BASE)  0x00400000
+set RAM(0,LEN)   0x18000
+set RAM(0,HUMAN) "internal SRAM"
+set RAM(0,TYPE)            "ram"
+set RAM(0,RWX)             $RWX_RWX
+set RAM(0,ACCESS_WIDTH)    $ACCESS_WIDTH_ANY
+
+# I AM LAZY... I create 1 region for all MMRs.
+set N_MMREGS    1
+set MMREGS(0,CHIPSELECT)      -1
+set MMREGS(0,BASE)            0x80000000
+set MMREGS(0,LEN)             0x00030000
+set MMREGS(0,HUMAN)           "mm-regs"
+set MMREGS(0,TYPE)            "mmr"
+set MMREGS(0,RWX)             $RWX_RW
+set MMREGS(0,ACCESS_WIDTH)    $ACCESS_WIDTH_ANY
+
+set N_XMEM 0
+
+set _CHIPNAME mc13224v
+set _CPUTAPID 0x1f1f001d
+
+jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+
+reset_config srst_only
+jtag_ntrst_delay 200
+
+# rclk hasn't been working well. This maybe the mc13224v or something else.
+#jtag_rclk 2000
+jtag_khz 2000
+
+######################
+# Target configuration
+######################
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME arm7tdmi -chain-position $_TARGETNAME
+
+# Internal sram memory
+$_TARGETNAME configure -work-area-phys 0x00408000 \
+                       -work-area-size 0x1000     \
+                       -work-area-backup 1
+
+# flash support is pending (should be straightforward to implement)
+#flash bank mc1322x 0 0 0 0 $_TARGETNAME