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authorHarald Kipp <harald.kipp@egnite.de>2010-02-02 11:09:53 -0800
committerDavid Brownell <dbrownell@users.sourceforge.net>2010-02-02 11:09:53 -0800
commit18969466c91e75102f76be60d00a11cb93ed329d (patch)
tree12f7254c0b7189c302260da8f3b3b3b7ea267164
parent5750e899e03aa3312202be3ff217645c5f69304d (diff)
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AT91R40008/Ethernut 3 configuration
Moved board specific settings from target/at91r40008.cfg to a new file board/ethernut3.cfg. Set correct CPUTAPID. Reset delay increased, see MIC2775 data sheet. Increased work area size from 16k to 128k. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
-rw-r--r--tcl/board/ethernut3.cfg86
-rw-r--r--tcl/target/at91r40008.cfg41
2 files changed, 95 insertions, 32 deletions
diff --git a/tcl/board/ethernut3.cfg b/tcl/board/ethernut3.cfg
new file mode 100644
index 00000000..f22e6887
--- /dev/null
+++ b/tcl/board/ethernut3.cfg
@@ -0,0 +1,86 @@
+#
+# Ethernut 3 board configuration file
+#
+# http://www.ethernut.de/en/hardware/enut3/
+
+
+# AT91R40008-66AU ARM7TDMI Microcontroller
+# 256kB internal RAM
+source [find target/at91r40008.cfg]
+
+
+# AT49BV322A-70TU NOR Flash
+# 2M x 16 mode at address 0x10000000
+# Common flash interface supported
+#
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME cfi 0x10000000 0x400000 2 2 $_TARGETNAME
+
+
+# Micrel MIC2775-29YM5 Supervisor
+# Reset output will remain active for 280ms (maximum)
+#
+jtag_nsrst_delay 300
+jtag_ntrst_delay 300
+
+
+arm7_9 fast_memory_access enable
+arm7_9 dcc_downloads enable
+jtag_khz 16000
+
+
+# Target events
+#
+$_TARGETNAME configure -event reset-init { board_init }
+
+# Initialize board hardware
+#
+proc board_init { } {
+ board_remap
+ flash probe 0
+}
+
+# Memory remap
+#
+proc board_remap {{VERBOSE 0}} {
+ # CS0: NOR flash
+ # 16MB @ 0x10000000
+ # 16-bit data bus
+ # 4 wait states
+ #
+ mww 0xffe00000 0x1000212d
+
+ # CS1: Ethernet controller
+ # 1MB @ 0x20000000
+ # 16-bit data bus
+ # 2 wait states
+ # Byte select access
+ #
+ mww 0xffe00004 0x20003025
+
+ # CS2: CPLD registers
+ # 1MB @ 0x21000000
+ # 8-bit data bus
+ # 2 wait states
+ #
+ mww 0xffe00008 0x21002026
+
+ # CS3: Expansion bus
+ # 1MB @ 0x22000000
+ # 8-bit data bus
+ # 8 wait states
+ #
+ mww 0xffe00010 0x22002e3e
+
+ # Remap command
+ #
+ mww 0xffe00020 0x00000001
+
+ if {$VERBOSE != 0} {
+ puts "0x00000000 RAM"
+ puts "0x10000000 Flash"
+ puts "0x20000000 Ethernet"
+ puts "0x21000000 CPLD"
+ puts "0x22000000 Expansion"
+ }
+}
diff --git a/tcl/target/at91r40008.cfg b/tcl/target/at91r40008.cfg
index 9069ae56..9c0c4839 100644
--- a/tcl/target/at91r40008.cfg
+++ b/tcl/target/at91r40008.cfg
@@ -1,9 +1,13 @@
+# AT91R40008 target configuration file
+
+# TRST is tied to SRST on the AT91X40 family.
+reset_config srst_only srst_pulls_trst
-if { [info exists CHIPNAME] } {
+if {[info exists CHIPNAME]} {
set _CHIPNAME $CHIPNAME
} else {
- set _CHIPNAME at9r40008
+ set _CHIPNAME at91r40008
}
if { [info exists ENDIAN] } {
@@ -12,41 +16,14 @@ if { [info exists ENDIAN] } {
set _ENDIAN little
}
+# Setup the JTAG scan chain.
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
- # force an error till we get a good number
- set _CPUTAPID 0xffffffff
+ set _CPUTAPID 0x1f0f0f0f
}
-
-jtag_nsrst_delay 200
-jtag_ntrst_delay 200
-
-#use combined on interfaces or targets that can't set TRST/SRST separately
-reset_config srst_only srst_pulls_trst
-
-#jtag scan chain
-#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi
-
-
-$_TARGETNAME configure -event gdb-flash-erase-start {
- wait_halt
- sleep 10
- poll
- # Ethernut 3 remapping is required to access external flash memory.
- mww 0xffe00000 0x1000213d
- mww 0xffe00004 0x20003e3d
- mww 0xffe00020 0x00000001
-}
-
-$_TARGETNAME configure -work-area-phys 0x3C000 -work-area-size 0x4000 -work-area-backup 0
-
-set _FLASHNAME $_CHIPNAME.flash
-flash bank $_FLASHNAME cfi 0x10000000 0x400000 2 2 $_TARGETNAME
-
-# For more information about the configuration files, take a look at:
-# openocd.texi
+$_TARGETNAME configure -work-area-phys 0x20000 -work-area-size 0x20000 -work-area-backup 0