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| author | Andreas Färber <afaerber@suse.de> | 2015-04-20 02:51:23 +0200 |
|---|---|---|
| committer | Andreas Fritiofson <andreas.fritiofson@gmail.com> | 2016-02-29 19:40:20 +0000 |
| commit | 43ff5acd45017fd9828cc56f54b929e600956c3b (patch) | |
| tree | f6642b088a641491ce0c8de96423cb1f45b6f1f2 /tcl | |
| parent | 13618ab99426b0786d6825e5816a3b082f8aa973 (diff) | |
| download | riscv-openocd-43ff5acd45017fd9828cc56f54b929e600956c3b.zip riscv-openocd-43ff5acd45017fd9828cc56f54b929e600956c3b.tar.gz riscv-openocd-43ff5acd45017fd9828cc56f54b929e600956c3b.tar.bz2 | |
flash: New Spansion FM4 flash driver
The Spansion FM4 family of microcontrollers does not offer a way to
identify the chip model nor the flash size, except for Dual Flash vs.
regular layout. Therefore the family is passed as argument and
wildcard-matched - MB9BFx6x and S6E2CC families are supported.
Iterations showed that ...
1) Just doing the flash command sequence from SRAM loader code for each
half-word took 20 minutes for an 8 KB block.
2) Doing the busy-wait in the loader merely reduced the time to 19 minutes.
3) Significant performance gains were achieved by looping in loader code
rather than in OpenOCD and by maximizing the batch size across sectors,
getting us down to ~2 seconds for 8 KB and ~2.5 minutes for 1.1 MB.
(Tested with SK-FM4-176L-S6E2CC-ETH v11, CMSIS-DAP v23.)
gcc, objcopy -Obinary and bin2char.sh are used for automating the
integration of hand-written assembler snippets.
Change-Id: I092c81074662534f50b71b91d54eb8e0098fec76
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2190
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Diffstat (limited to 'tcl')
| -rw-r--r-- | tcl/board/spansion_sk-fm4-176l-s6e2cc.cfg | 1 | ||||
| -rw-r--r-- | tcl/board/spansion_sk-fm4-u120-9b560.cfg | 1 | ||||
| -rw-r--r-- | tcl/target/fm4_mb9bf.cfg | 3 | ||||
| -rw-r--r-- | tcl/target/fm4_s6e2cc.cfg | 4 |
4 files changed, 9 insertions, 0 deletions
diff --git a/tcl/board/spansion_sk-fm4-176l-s6e2cc.cfg b/tcl/board/spansion_sk-fm4-176l-s6e2cc.cfg index 4b23146..2855c5d 100644 --- a/tcl/board/spansion_sk-fm4-176l-s6e2cc.cfg +++ b/tcl/board/spansion_sk-fm4-176l-s6e2cc.cfg @@ -13,6 +13,7 @@ source [find interface/cmsis-dap.cfg] # FM4 S6E2CCAJ0A w/ 192 KB SRAM0 # set CHIPNAME s6e2cc +set CHIPSERIES S6E2CCAJ0A set WORKAREASIZE 0x30000 source [find target/fm4_s6e2cc.cfg] diff --git a/tcl/board/spansion_sk-fm4-u120-9b560.cfg b/tcl/board/spansion_sk-fm4-u120-9b560.cfg index 64cbade..38ad4a8 100644 --- a/tcl/board/spansion_sk-fm4-u120-9b560.cfg +++ b/tcl/board/spansion_sk-fm4-u120-9b560.cfg @@ -11,6 +11,7 @@ # FM4 MB9BF568R w/ 64 KB SRAM0 # set CHIPNAME mb9bf568 +set CHIPSERIES MB9BF568R set WORKAREASIZE 0x10000 source [find target/fm4_mb9bf.cfg] diff --git a/tcl/target/fm4_mb9bf.cfg b/tcl/target/fm4_mb9bf.cfg index 12a6aee..e53fdc8 100644 --- a/tcl/target/fm4_mb9bf.cfg +++ b/tcl/target/fm4_mb9bf.cfg @@ -13,3 +13,6 @@ if { [info exists WORKAREASIZE] } { $_TARGETNAME configure -work-area-phys [expr 0x20000000 - $_WORKAREASIZE] \ -work-area-size $_WORKAREASIZE -work-area-backup 0 + +set _FLASHNAME $_CHIPNAME.flash +flash bank $_FLASHNAME fm4 0x00000000 0 0 0 $_TARGETNAME $CHIPSERIES diff --git a/tcl/target/fm4_s6e2cc.cfg b/tcl/target/fm4_s6e2cc.cfg index 18cc630..60b73b9 100644 --- a/tcl/target/fm4_s6e2cc.cfg +++ b/tcl/target/fm4_s6e2cc.cfg @@ -13,3 +13,7 @@ if { [info exists WORKAREASIZE] } { $_TARGETNAME configure -work-area-phys [expr 0x20000000 - $_WORKAREASIZE] \ -work-area-size $_WORKAREASIZE -work-area-backup 0 + +set _FLASHNAME $_CHIPNAME.flash +flash bank ${_FLASHNAME}0 fm4 0x00000000 0 0 0 $_TARGETNAME $CHIPSERIES +flash bank ${_FLASHNAME}1 fm4 0x00100000 0 0 0 $_TARGETNAME $CHIPSERIES |