2 if { [info exists CHIPNAME] } {
3 set _CHIPNAME $CHIPNAME
8 if { [info exists ENDIAN] } {
14 if { [info exists CPUTAPID ] } {
15 set _CPUTAPID $CPUTAPID
17 set _CPUTAPID 0x30938053
20 # default working area is 16384
21 if { [info exists WORKAREASIZE] } {
22 set _WORKAREASIZE $WORKAREASIZE
24 set _WORKAREASIZE 0x4000
28 adapter_nsrst_delay 100
32 #format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
33 jtag newtap $_CHIPNAME cpu -irlen 5 -ircapture 0x1 -irmask 0x1f -expected-id $_CPUTAPID
35 set _TARGETNAME $_CHIPNAME.cpu
36 target create $_TARGETNAME mips_m4k -endian $_ENDIAN -chain-position $_TARGETNAME
39 # At reset the pic32mx does not allow code execution from RAM
40 # we have to setup the BMX registers to allow this.
41 # One limitation is that we loose the first 2k of RAM.
44 global _PIC32MX_DATASIZE
45 global _PIC32MX_PROGSIZE
46 set _PIC32MX_DATASIZE 0x800
47 set _PIC32MX_PROGSIZE [expr ($_WORKAREASIZE - $_PIC32MX_DATASIZE)]
49 $_TARGETNAME configure -work-area-phys 0xa0000800 -work-area-size $_PIC32MX_PROGSIZE -work-area-backup 0
50 $_TARGETNAME configure -event reset-init {
52 # from reset the pic32 cannot execute code in ram - enable ram execution
53 # minimum offset from start of ram is 2k
56 global _PIC32MX_DATASIZE
57 global _PIC32MX_PROGSIZE
60 mww 0xbf882000 0x001f0040
61 # BMXDKPBA: 2k kernel data @ 0xa0000800
62 mww 0xbf882010 $_PIC32MX_DATASIZE
63 # BMXDUDBA: 16k kernel program @ 0xa0000800
64 mww 0xbf882020 $_PIC32MX_PROGSIZE
65 # BMXDUPBA: 0k user program
66 mww 0xbf882030 $_PIC32MX_PROGSIZE
69 set _FLASHNAME $_CHIPNAME.flash0
70 flash bank $_FLASHNAME pic32mx 0x1fc00000 0 0 0 $_TARGETNAME
71 # add virtual banks for kseg0 and kseg1
72 flash bank vbank0 virtual 0xbfc00000 0 0 0 $_TARGETNAME $_FLASHNAME
73 flash bank vbank1 virtual 0x9fc00000 0 0 0 $_TARGETNAME $_FLASHNAME
75 set _FLASHNAME $_CHIPNAME.flash1
76 flash bank $_FLASHNAME pic32mx 0x1d000000 0 0 0 $_TARGETNAME
77 # add virtual banks for kseg0 and kseg1
78 flash bank vbank2 virtual 0xbd000000 0 0 0 $_TARGETNAME $_FLASHNAME
79 flash bank vbank3 virtual 0x9d000000 0 0 0 $_TARGETNAME $_FLASHNAME