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tools: k3_gen_x509_cert: Allow selecting early JTAG debug value

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When authenticating the initial boot binary the ROM will check a debug
type value in the certificate and based on that open JTAG access to that
core.

Make this selectable in the signing tool to allow it to be enabled or
disabled based on user command line input.

This does not change the default behavior.

Signed-off-by: Andrew F. Davis <afd@ti.com>
This commit is contained in:
Andrew F. Davis 2020-05-27 09:47:54 -04:00 committed by Lokesh Vutla
parent c78ae11e07
commit 0428a0b88f
1 changed files with 11 additions and 3 deletions
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14
tools/k3_gen_x509_cert.sh
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@ -12,6 +12,7 @@ RAND_KEY=eckey.pem
LOADADDR=0x41c00000
BOOTCORE_OPTS=0
BOOTCORE=16
DEBUG_TYPE=4
gen_degen_template() {
cat << 'EOF' > degen-template.txt
@ -79,7 +80,7 @@ cat << 'EOF' > x509-template.txt
[ debug ]
debugUID = FORMAT:HEX,OCT:0000000000000000000000000000000000000000000000000000000000000000
debugType = INTEGER:4
debugType = INTEGER:TEST_DEBUG_TYPE
coreDbgEn = INTEGER:0
coreDbgSecEn = INTEGER:0
EOF
@ -151,8 +152,9 @@ options_help[k]="key_file:file with key inside it. If not provided script genera
options_help[o]="output_file:Name of the final output file. default to $OUTPUT"
options_help[c]="core_id:target core id on which the image would be running. Default to $BOOTCORE"
options_help[l]="loadaddr: Target load address of the binary in hex. Default to $LOADADDR"
options_help[d]="debug_type: Debug type, set to 0 to disable early JTAG. Default to $DEBUG_TYPE"
while getopts "b:k:o:c:l:h" opt
while getopts "b:k:o:c:l:d:h" opt
do
case $opt in
b)
@ -170,6 +172,9 @@ do
c)
BOOTCORE=$OPTARG
;;
d)
DEBUG_TYPE=$OPTARG
;;
h)
usage
exit 0
@ -224,12 +229,15 @@ gen_cert() {
#echo " LOADADDR = 0x$ADDR"
#echo " IMAGE_SIZE = $BIN_SIZE"
#echo " CERT_TYPE = $CERTTYPE"
#echo " DEBUG_TYPE = $DEBUG_TYPE"
sed -e "s/TEST_IMAGE_LENGTH/$BIN_SIZE/" \
-e "s/TEST_IMAGE_SHA_VAL/$SHA_VAL/" \
-e "s/TEST_CERT_TYPE/$CERTTYPE/" \
-e "s/TEST_BOOT_CORE_OPTS/$BOOTCORE_OPTS/" \
-e "s/TEST_BOOT_CORE/$BOOTCORE/" \
-e "s/TEST_BOOT_ADDR/$ADDR/" x509-template.txt > $TEMP_X509
-e "s/TEST_BOOT_ADDR/$ADDR/" \
-e "s/TEST_DEBUG_TYPE/$DEBUG_TYPE/" \
x509-template.txt > $TEMP_X509
openssl req -new -x509 -key $KEY -nodes -outform DER -out $CERT -config $TEMP_X509 -sha512
}