diff options
Diffstat (limited to 'src/target/target/at91sam9260_ext_RAM_ext_flash.cfg')
-rw-r--r-- | src/target/target/at91sam9260_ext_RAM_ext_flash.cfg | 127 |
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 +} + + + |