87 lines
2.0 KiB
INI
87 lines
2.0 KiB
INI
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# Nordic nRF52, nRF53 and nRF91 CTRL-AP handling
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#
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if { [using_hla] } {
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echo ""
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echo "nRF device has a CTRL-AP dedicated to recover the device from AP lock."
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echo "A high level adapter (like a ST-Link) you are currently using cannot access"
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echo "the CTRL-AP so 'nrfxx_recover' command will not work."
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echo "Do not enable UICR APPROTECT."
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echo ""
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} else {
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# Test if debug/MEM-AP is locked by UICR APPROTECT
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proc _nrf_check_ap_lock { ctrl_ap_num unlocked_value } {
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set target [target current]
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set dap [$target cget -dap]
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set err [catch {set APPROTECTSTATUS [$dap apreg $ctrl_ap_num 0xc]}]
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if {$err == 0 && $APPROTECTSTATUS < $unlocked_value} {
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echo ""
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echo "****** WARNING ******"
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echo "\[$target\] device has AP lock engaged (see UICR APPROTECT register)."
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echo "Debug access is denied."
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echo "Use 'nrfxx_recover' to erase and unlock the device."
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echo ""
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poll off
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return 1
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}
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return 0
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}
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# Mass erase and unlock the device using proprietary nRF CTRL-AP
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proc _nrf_ctrl_ap_recover { ctrl_ap_num {is_cpunet 0} } {
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set target [target current]
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set dap [$target cget -dap]
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set IDR [$dap apreg $ctrl_ap_num 0xfc]
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if {$IDR != 0x12880000} {
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echo "Error: Cannot access nRF CTRL-AP!"
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return
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}
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poll off
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# Reset and trigger ERASEALL task
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$dap apreg $ctrl_ap_num 4 0
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$dap apreg $ctrl_ap_num 4 1
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for {set i 0} {1} {incr i} {
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set ERASEALLSTATUS [$dap apreg $ctrl_ap_num 8]
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if {$ERASEALLSTATUS == 0} {
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echo "\[$target\] device has been successfully erased and unlocked."
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break
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}
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if {$i == 0} {
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echo "Waiting for chip erase..."
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}
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if {$i >= 150} {
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echo "Error: \[$target\] recovery failed."
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break
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}
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sleep 100
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}
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# Assert reset
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$dap apreg $ctrl_ap_num 0 1
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# Deassert reset
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$dap apreg $ctrl_ap_num 0 0
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# Reset ERASEALL task
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$dap apreg $ctrl_ap_num 4 0
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if { $is_cpunet } {
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reset init
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} else {
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sleep 100
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$target arp_examine
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poll on
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}
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}
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lappend _telnet_autocomplete_skip _nrf_check_ap_lock _nrf_ctrl_ap_recover
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}
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