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author | David Brownell <dbrownell@users.sourceforge.net> | 2009-10-23 12:28:03 -0700 |
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committer | David Brownell <dbrownell@users.sourceforge.net> | 2009-10-23 12:28:03 -0700 |
commit | 75cdc8a260e081752698f374d4cd6e97e84eb6cb (patch) | |
tree | 0243254891f694470d6b9147431746837dcc4394 | |
parent | bfefe85645a51d8e5f94879dcd0321abafdcbf7c (diff) | |
download | riscv-openocd-75cdc8a260e081752698f374d4cd6e97e84eb6cb.zip riscv-openocd-75cdc8a260e081752698f374d4cd6e97e84eb6cb.tar.gz riscv-openocd-75cdc8a260e081752698f374d4cd6e97e84eb6cb.tar.bz2 |
arm9tdmi vector_catch: reserved means "don't use"
Bit 5 shouldn't be used. Remove all support for modifying it.
Matches the exception vector table, of course ... more than one
bootloader uses that non-vector to help distinguish valid boot
images from random garbage in flash.
-rw-r--r-- | doc/openocd.texi | 4 | ||||
-rw-r--r-- | src/target/arm9tdmi.c | 3 | ||||
-rw-r--r-- | src/target/arm9tdmi.h | 2 |
3 files changed, 5 insertions, 4 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi index c9e48bf..6760994 100644 --- a/doc/openocd.texi +++ b/doc/openocd.texi @@ -5460,6 +5460,8 @@ ARMv5TE architecture instead of ARMv4T. @c 9-june-2009: tried this on arm920t, it didn't work. @c no-params always lists nothing caught, and that's how it acts. +@c 23-oct-2009: doesn't work _consistently_ ... as if the ICE +@c versions have different rules about when they commit writes. @anchor{arm9tdmi vector_catch} @deffn Command {arm9tdmi vector_catch} [@option{all}|@option{none}|list] @@ -5476,7 +5478,7 @@ vector catch hardware to intercept @option{all} of the hardware vectors, @option{none} of them, or a list with one or more of the following: -@option{reset} @option{undef} @option{swi} @option{pabt} @option{dabt} @option{reserved} +@option{reset} @option{undef} @option{swi} @option{pabt} @option{dabt} @option{irq} @option{fiq}. @end deffn diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c index f941922..12b68ae 100644 --- a/src/target/arm9tdmi.c +++ b/src/target/arm9tdmi.c @@ -95,7 +95,6 @@ static arm9tdmi_vector_t arm9tdmi_vectors[] = {"swi", ARM9TDMI_SWI_VECTOR}, {"pabt", ARM9TDMI_PABT_VECTOR}, {"dabt", ARM9TDMI_DABT_VECTOR}, - {"reserved", ARM9TDMI_RESERVED_VECTOR}, {"irq", ARM9TDMI_IRQ_VECTOR}, {"fiq", ARM9TDMI_FIQ_VECTOR}, {0, 0}, @@ -1067,7 +1066,7 @@ int arm9tdmi_register_commands(struct command_context_s *cmd_ctx) "arm9tdmi specific commands"); register_command(cmd_ctx, arm9tdmi_cmd, "vector_catch", handle_arm9tdmi_catch_vectors_command, COMMAND_EXEC, - "arm9 vector_catch [all|none|reset|undef|swi|pabt|dabt|reserved|irq|fiq] - separate vectors to catch by space"); + "arm9 vector_catch [all|none|reset|undef|swi|pabt|dabt|irq|fiq] - separate vectors to catch by space"); diff --git a/src/target/arm9tdmi.h b/src/target/arm9tdmi.h index 28be9b6..9dfa886 100644 --- a/src/target/arm9tdmi.h +++ b/src/target/arm9tdmi.h @@ -47,7 +47,7 @@ enum arm9tdmi_vector ARM9TDMI_SWI_VECTOR = 0x04, ARM9TDMI_PABT_VECTOR = 0x08, ARM9TDMI_DABT_VECTOR = 0x10, - ARM9TDMI_RESERVED_VECTOR = 0x20, + /* BIT(5) reserved -- must be zero */ ARM9TDMI_IRQ_VECTOR = 0x40, ARM9TDMI_FIQ_VECTOR = 0x80, }; |