1 ######################################
2 # Target: DIGI ConnectCore Wi-9C
3 ######################################
5 reset_config trst_and_srst
7 if { [info exists CHIPNAME] } {
8 set _CHIPNAME $CHIPNAME
13 if { [info exists ENDIAN] } {
16 # This config file was defaulting to big endian..
21 # What's a good fallback frequency for this board if RCLK is
26 if { [info exists CPUTAPID ] } {
27 set _CPUTAPID $CPUTAPID
29 set _CPUTAPID 0x07926031
32 set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
33 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
39 ######################
40 # Target configuration
41 ######################
43 target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs
45 $_TARGETNAME configure -event reset-init {
46 mww 0x90600104 0x33313333
47 mww 0xA0700000 0x00000001 # Enable the memory controller.
48 mww 0xA0700024 0x00000006 # Set the refresh counter 6
49 mww 0xA0700028 0x00000001 #
50 mww 0xA0700030 0x00000001 # Set the precharge period
51 mww 0xA0700034 0x00000004 # Active to precharge command period is 16 clock cycles
52 mww 0xA070003C 0x00000001 # tAPR
53 mww 0xA0700040 0x00000005 # tDAL
54 mww 0xA0700044 0x00000001 # tWR
55 mww 0xA0700048 0x00000006 # tRC 32 clock cycles
56 mww 0xA070004C 0x00000006 # tRFC 32 clock cycles
57 mww 0xA0700054 0x00000001 # tRRD
58 mww 0xA0700058 0x00000001 # tMRD
59 mww 0xA0700100 0x00004280 # Dynamic Config 0 (cs4)
60 mww 0xA0700120 0x00004280 # Dynamic Config 1 (cs5)
61 mww 0xA0700140 0x00004280 # Dynamic Config 2 (cs6)
62 mww 0xA0700160 0x00004280 # Dynamic Config 3 (cs7)
64 mww 0xA0700104 0x00000203 # CAS latency is 2 at 100 MHz
65 mww 0xA0700124 0x00000203 # CAS latency is 2 at 100 MHz
66 mww 0xA0700144 0x00000203 # CAS latency is 2 at 100 MHz
67 mww 0xA0700164 0x00000203 # CAS latency is 2 at 100 MHz
69 mww 0xA0700020 0x00000103 # issue SDRAM PALL command
71 mww 0xA0700024 0x00000001 # Set the refresh counter to be as small as possible
73 # Add some dummy writes to give the SDRAM time to settle, it needs two
74 # AHB clock cycles, here we poke in the debugger flag, this lets
75 # the software know that we are in the debugger
76 mww 0xA0900000 0x00000002
77 mww 0xA0900000 0x00000002
78 mww 0xA0900000 0x00000002
79 mww 0xA0900000 0x00000002
80 mww 0xA0900000 0x00000002
88 mww 0xA0700024 0x00000030 # Set the refresh counter to 30
89 mww 0xA0700020 0x00000083 # Issue SDRAM MODE command
91 # Next we perform a read of RAM.
94 # mw 0x00022000:P, r3 # 22000 for cas2 latency, 32000 for cas 3
96 mww 0xA0700020 0x00000003 # issue SDRAM NORMAL command
97 mww 0xA0700100 0x00084280 # Enable buffer access
98 mww 0xA0700120 0x00084280 # Enable buffer access
99 mww 0xA0700140 0x00084280 # Enable buffer access
100 mww 0xA0700160 0x00084280 # Enable buffer access
102 #Set byte lane state (static mem 1)"
103 mww 0xA0700220 0x00000082
105 mww 0xA09001F8 0x50000000
107 mww 0xA09001FC 0xFF000001
108 mww 0xA0700028 0x00000001
110 # RAMAddr = 0x00020000
111 # RAMSize = 0x00004000
113 # Set the processor mode
117 $_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x00000000 -work-area-size 0x1000 -work-area-backup 1
119 #####################
120 # Flash configuration
121 #####################
123 #M29DW323DB - not working
124 #flash bank cfi <base> <size> <chip width> <bus width> <target#>
125 flash bank cfi 0x50000000 0x0400000 2 2 0