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tcl/target/rp2040: add flash size override and reset init event

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Allow flash size override and suppress flash size detection
by setting FLASHSIZE Tcl variable.

reset-init event calls 'connect XIP' ROM API function to make
flash content accessible at the XIP mapping memory area.

Ported from rp2350.cfg

Change-Id: I9b352b1ef6d4c6d4b78a6b61e900ce01355c8eff
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/8461
Reviewed-by: Jonathan Bell <jonathan@raspberrypi.com>
Tested-by: jenkins
This commit is contained in:
Tomas Vanek
2024-08-17 16:21:06 +02:00
parent f039fe7f9d
commit 376d11c2e3
1 changed files with 16 additions and 4 deletions
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20
tcl/target/rp2040.cfg
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@@ -20,6 +20,14 @@ if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE 0x10000
}
# Nonzero FLASHSIZE supresses QSPI flash size detection
if { [info exists FLASHSIZE] } {
set _FLASHSIZE $FLASHSIZE
} else {
# Detect QSPI flash size based on flash ID or SFDP
set _FLASHSIZE 0
}
if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
@@ -74,6 +82,10 @@ if { $_USE_CORE != 1 } {
target create $_TARGETNAME_0 cortex_m -dap $_CHIPNAME.dap0 -coreid 0
# srst does not exist; use SYSRESETREQ to perform a soft reset
$_TARGETNAME_0 cortex_m reset_config sysresetreq
# After a rescue reset and fi BOOTSEL is halted connect the flash to enable
# reads from the XIP cached mapping area
$_TARGETNAME_0 configure -event reset-init { rp2xxx rom_api_call 0 CX }
}
# core 1
@@ -95,11 +107,11 @@ if { $_USE_CORE == 1 } {
} else {
set _FLASH_TARGET $_TARGETNAME_0
}
# Backup the work area. The flash probe runs an algorithm on the target CPU.
# The flash is probed during gdb connect if gdb memory_map is enabled (by default).
$_FLASH_TARGET configure -work-area-phys 0x20010000 -work-area-size $_WORKAREASIZE -work-area-backup 1
# QSPI flash size detection during gdb connect requires to back-up RAM
set _WKA_BACKUP [expr { $_FLASHSIZE == 0 }]
$_FLASH_TARGET configure -work-area-phys 0x20010000 -work-area-size $_WORKAREASIZE -work-area-backup $_WKA_BACKUP
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME rp2xxx 0x10000000 0 0 0 $_FLASH_TARGET
flash bank $_FLASHNAME rp2xxx 0x10000000 $_FLASHSIZE 0 0 $_FLASH_TARGET
if { $_BOTH_CORES } {
# Alias to ensure gdb connecting to core 1 gets the correct memory map