R.Doss <doss@gmx.de> AT91SAM9260

git-svn-id: svn://svn.berlios.de/openocd/trunk@1530 b42882b7-edfa-0310-969c-e2dbd0fdcd60

1 files changed, 127 insertions, 0 deletions

diff --git a/src/target/target/at91sam9260_ext_RAM_ext_flash.cfg b/src/target/target/at91sam9260_ext_RAM_ext_flash.cfg
new file mode 100644
index 00000000..f10a021c
--- /dev/null
+++ b/src/target/target/at91sam9260_ext_RAM_ext_flash.cfg
@@ -0,0 +1,127 @@
+
+
+
+jtag_khz 4
+
+
+######################################
+# Target:    Atmel AT91SAM9260
+######################################
+
+if { [info exists CHIPNAME] } {	
+   set  _CHIPNAME $CHIPNAME    
+} else {	 
+   set  _CHIPNAME at91sam9260
+}
+
+if { [info exists ENDIAN] } {	
+   set  _ENDIAN $ENDIAN    
+} else {	 
+   set  _ENDIAN little
+}
+
+if { [info exists CPUTAPID ] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+  # force an error till we get a good number
+   set _CPUTAPID 0x0792603f
+}
+
+reset_config trst_and_srst
+
+
+jtag_nsrst_delay 200
+jtag_ntrst_delay 200
+
+
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+
+######################
+# Target configuration
+######################
+
+set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
+target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs
+
+$_TARGETNAME invoke-event halted
+
+# Internal sram1 memory
+$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x00300000 -work-area-size 0x1000 -work-area-backup 1
+
+scan_chain
+$_TARGETNAME configure -event reset-deassert-post {at91sam_init}
+
+
+# Flash configuration
+#flash bank cfi <base> <size> <chip width> <bus width> <target#>
+flash bank cfi 0x10000000 0x01000000 2 2 $_TARGETNAME
+
+
+proc at91sam_init { } {
+	
+	# at reset chip runs at 32khz
+	jtag_khz 8
+	halt
+	mww 0xfffffd08 0xa5000501         # RSTC_MR : enable user reset
+	mww 0xfffffd44 0x00008000         # WDT_MR : disable watchdog
+
+	mww 0xfffffc20 0x00004001         # CKGR_MOR : enable the main oscillator
+	sleep 20                          # wait 20 ms
+	mww 0xfffffc30 0x00000001         # PMC_MCKR : switch to main oscillator
+	sleep 10                          # wait 10 ms
+	mww 0xfffffc28 0x2060bf09         # CKGR_PLLAR: Set PLLA Register for 198,656MHz
+	sleep 20                          # wait 20 ms
+	mww 0xfffffc30 0x00000101         # PMC_MCKR : Select prescaler
+	sleep 10                          # wait 10 ms
+	mww 0xfffffc30 0x00000102         # PMC_MCKR : Clock from PLLA is selected
+	sleep 10                          # wait 10 ms
+
+	# Now run at anything fast... ie: 10mhz!
+	jtag_khz 10000                    # Increase JTAG Speed to 6 MHz
+	arm7_9 dcc_downloads enable       # Enable faster DCC downloads
+
+	mww 0xffffec00 0x0a0a0a0a         # SMC_SETUP0 : Setup SMC for Intel NOR Flash JS28F128P30T85 128MBit
+	mww 0xffffec04 0x0b0b0b0b         # SMC_PULSE0
+	mww 0xffffec08 0x00160016         # SMC_CYCLE0
+	mww 0xffffec0c 0x00161003         # SMC_MODE0
+
+	flash probe 0                     # Identify flash bank 0
+
+	mww 0xfffff870 0xffff0000         # PIO_ASR : Select peripheral function for D15..D31
+	mww 0xfffff804 0xffff0000         # PIO_PDR : Disable PIO function for D15..D31
+
+	mww 0xffffef1c 0x2                # EBI_CSA : Assign EBI Chip Select 1 to SDRAM
+
+	mww 0xffffea08 0x85227259         # SDRAMC_CR : Configure SDRAM (2 x Samsung K4S561632H-UC75 : 4M x 16Bit x 4 Banks)
+	#mww 0xffffea08 0x85227254         # SDRAMC_CR : Configure SDRAM (2 x Samsung K4S641632H-UC75 : 1M x 16Bit x 4 Banks)
+
+	mww 0xffffea00 0x1                # SDRAMC_MR : issue a NOP command
+	mww 0x20000000 0
+	mww 0xffffea00 0x2                # SDRAMC_MR : issue an 'All Banks Precharge' command
+	mww 0x20000000 0
+	mww 0xffffea00 0x4                # SDRAMC_MR : issue 8 x 'Auto-Refresh' Command
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x4
+	mww 0x20000000 0
+	mww 0xffffea00 0x3                # SDRAMC_MR : issue a 'Load Mode Register' command
+	mww 0x20000000 0
+	mww 0xffffea00 0x0                # SDRAMC_MR : normal mode
+	mww 0x20000000 0
+	mww 0xffffea04 0x5d2              # SDRAMC_TR : Set refresh timer count to 15us
+}
+
+
+