blob: 3bc26adf8a7b2be0640d86dd026fa256604ecd7a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
######################################
# Target: DIGI ConnectCore Wi-9C
######################################
reset_config trst_and_srst
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME ns9360
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
# This config file was defaulting to big endian..
set _ENDIAN big
}
# What's a good fallback frequency for this board if RCLK is
# not available??
jtag_rclk 1000
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x07926031
}
set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
jtag_nsrst_delay 200
jtag_ntrst_delay 0
######################
# Target configuration
######################
target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs
$_TARGETNAME configure -event reset-init {
mww 0x90600104 0x33313333
mww 0xA0700000 0x00000001 # Enable the memory controller.
mww 0xA0700024 0x00000006 # Set the refresh counter 6
mww 0xA0700028 0x00000001 #
mww 0xA0700030 0x00000001 # Set the precharge period
mww 0xA0700034 0x00000004 # Active to precharge command period is 16 clock cycles
mww 0xA070003C 0x00000001 # tAPR
mww 0xA0700040 0x00000005 # tDAL
mww 0xA0700044 0x00000001 # tWR
mww 0xA0700048 0x00000006 # tRC 32 clock cycles
mww 0xA070004C 0x00000006 # tRFC 32 clock cycles
mww 0xA0700054 0x00000001 # tRRD
mww 0xA0700058 0x00000001 # tMRD
mww 0xA0700100 0x00004280 # Dynamic Config 0 (cs4)
mww 0xA0700120 0x00004280 # Dynamic Config 1 (cs5)
mww 0xA0700140 0x00004280 # Dynamic Config 2 (cs6)
mww 0xA0700160 0x00004280 # Dynamic Config 3 (cs7)
#
mww 0xA0700104 0x00000203 # CAS latency is 2 at 100 MHz
mww 0xA0700124 0x00000203 # CAS latency is 2 at 100 MHz
mww 0xA0700144 0x00000203 # CAS latency is 2 at 100 MHz
mww 0xA0700164 0x00000203 # CAS latency is 2 at 100 MHz
#
mww 0xA0700020 0x00000103 # issue SDRAM PALL command
#
mww 0xA0700024 0x00000001 # Set the refresh counter to be as small as possible
#
# Add some dummy writes to give the SDRAM time to settle, it needs two
# AHB clock cycles, here we poke in the debugger flag, this lets
# the software know that we are in the debugger
mww 0xA0900000 0x00000002
mww 0xA0900000 0x00000002
mww 0xA0900000 0x00000002
mww 0xA0900000 0x00000002
mww 0xA0900000 0x00000002
#
mdw 0xA0900000
mdw 0xA0900000
mdw 0xA0900000
mdw 0xA0900000
mdw 0xA0900000
#
mww 0xA0700024 0x00000030 # Set the refresh counter to 30
mww 0xA0700020 0x00000083 # Issue SDRAM MODE command
#
# Next we perform a read of RAM.
# mw = move word.
mdw 0x00022000
# mw 0x00022000:P, r3 # 22000 for cas2 latency, 32000 for cas 3
#
mww 0xA0700020 0x00000003 # issue SDRAM NORMAL command
mww 0xA0700100 0x00084280 # Enable buffer access
mww 0xA0700120 0x00084280 # Enable buffer access
mww 0xA0700140 0x00084280 # Enable buffer access
mww 0xA0700160 0x00084280 # Enable buffer access
#Set byte lane state (static mem 1)"
mww 0xA0700220 0x00000082
#Flash Start
mww 0xA09001F8 0x50000000
#Flash Mask Reg
mww 0xA09001FC 0xFF000001
mww 0xA0700028 0x00000001
# RAMAddr = 0x00020000
# RAMSize = 0x00004000
# Set the processor mode
reg cpsr 0xd3
}
$_TARGETNAME configure -work-area-phys 0x00000000 -work-area-size 0x1000 -work-area-backup 1
#####################
# Flash configuration
#####################
#M29DW323DB - not working
#flash bank cfi <base> <size> <chip width> <bus width> <target#>
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME cfi 0x50000000 0x0400000 2 2 0
|
