reset_config trst_and_srst
+# FIXME use some standard target config, maybe create one from this
+#
+# source [find target/...cfg]
+
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
jtag_rclk 1000
-if { [info exists CPUTAPID ] } {
+if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x07926031
}
-set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
+set _TARGETNAME $_CHIPNAME.cpu
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-jtag_nsrst_delay 200
+adapter srst delay 200
jtag_ntrst_delay 0
# Target configuration
######################
-target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs
+target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME
$_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 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 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 0xA0700020 0x00000103 ;# issue SDRAM PALL command
#
- mww 0xA0700024 0x00000001 # Set the refresh counter to be as small as possible
+ 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
mdw 0xA0900000
mdw 0xA0900000
#
- mww 0xA0700024 0x00000030 # Set the refresh counter to 30
- mww 0xA0700020 0x00000083 # Issue SDRAM MODE command
+ 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
+ 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
#####################
#M29DW323DB - not working
-#flash bank cfi <base> <size> <chip width> <bus width> <target#>
+#flash bank <name> cfi <base> <size> <chip width> <bus width> <target>
set _FLASHNAME $_CHIPNAME.flash
-flash bank $_FLASHNAME cfi 0x50000000 0x0400000 2 2 0
+flash bank $_FLASHNAME cfi 0x50000000 0x0400000 2 2 $_TARGETNAME