tcl/board: add Linksys WAG200G config

The Linksys WAG200G router has a TI AR7 SoC and a 4MB Flash layout
similar to the Netgear DG834v3 router [1].

Below is an example of a successful flash recovery, using a TUMPA,
connected to the MIPS EJTAG 2.6 header (JP102) of the router.

     WAG200G [2]  TUMPA [3]
     Desc  Pin    Pin  Desc
    ------------------------
     nTRST   1    3   nTRST
     TDI     3    5     TDI
     TDO     5    13    TDO
     TMS     7    7     TMS
     TCK     9    9     TCK
     nSRST  11    15    RST
     GND     2    4     GND

Note that nSRST is optional to halt the CPU, but is required to probe
the flash. For instance, recover the kernel with:

    $ sudo ./src/openocd -s tcl \
      -f interface/ftdi/tumpa.cfg \
      -f tools/firmware-recovery.tcl \
      -c 'board linksys-wag200g;
          reset_config srst_only;
          flash_part kernel /path/to/kernel.bin;
          shutdown'

[1] https://wiki.openwrt.org/toh/linksys/wag200g
[2] https://www.linux-mips.org/wiki/JTAG#JTAG_headers
[3] http://www.tiaowiki.com/w/TIAO_USB_Multi_Protocol_Adapter_User's_Manual#20_PIN_JTAG_Connector

Change-Id: I952ba9f706e2e4f8f95ca03a5fa58f391ca030b6
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-on: http://openocd.zylin.com/3776
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/tcl/board/linksys-wag200g.cfg b/tcl/board/linksys-wag200g.cfg
new file mode 100644 (file)
index 0000000..aa4887f
--- /dev/null
+++ b/tcl/board/linksys-wag200g.cfg
@@ -0,0 +1,27 @@
+#
+# Linksys WAG200G Router
+#
+# The stock firmware Flash layout is organized as follow:
+#
+#   Start       End         Device
+#   0x90000000  0x90020000  /dev/mtdblock/2
+#   0x90020000  0x900d0000  /dev/mtdblock/1
+#   0x900d0000  0x903a0000  /dev/mtdblock/0
+#   0x903a0000  0x903e0000  /dev/mtdblock/5
+#   0x903e0000  0x903f0000  /dev/mtdblock/3
+#   0x903f0000  0x90400000  /dev/mtdblock/4
+
+set partition_list {
+    adam2      { "Adam2 bootloader"            0x90000000 0x00020000 }
+    kernel     { "Kernel"                      0x90020000 0x000b0000 }
+    rootfs     { "Root FS"                     0x900d0000 0x002d0000 }
+    lang       { "Minix language part"         0x903a0000 0x00040000 }
+    config     { "Firmware config"             0x903e0000 0x00010000 }
+    adam2env   { "Adam2 environment"           0x903f0000 0x00010000 }
+}
+
+source [find target/ti-ar7.cfg]
+
+# External 4MB MXIC 29LV320MBTC Flash (Manufacturer/Device: 0x00c2 0x227e)
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME cfi 0x90000000 0x00400000 2 2 $_TARGETNAME

diff --git a/tcl/tools/firmware-recovery.tcl b/tcl/tools/firmware-recovery.tcl
index 6e23540f0b82d06382a015571b8eacc843aa5550..8e017ce5b3cf55d04af4b7c3f2595b5728e918ac 100644 (file)
--- a/tcl/tools/firmware-recovery.tcl
+++ b/tcl/tools/firmware-recovery.tcl
@@ -4,6 +4,7 @@ echo "Use -c firmware_help to get help\n"
 set known_boards {
     "asus-rt-n16               ASUS RT-N16"
     "asus-rt-n66u              ASUS RT-N66U"
+    "linksys-wag200g           Linksys WAG200G"
     "linksys-wrt54gl           Linksys WRT54GL v1.1"
     "netgear-dg834v3           Netgear DG834G v3"
     "tp-link_tl-mr3020         TP-LINK TL-MR3020"