diff options
author | Michael Bruck <mbruck@digenius.de> | 2009-10-27 22:41:00 +0100 |
---|---|---|
committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2009-11-10 14:00:24 +0100 |
commit | 627bd197689d71f7beb3e9cd11e2993fe0d4d880 (patch) | |
tree | 7d7a8bb52aefe98ed49b3f6585b4b91d0ad6c3d3 /src/target/arm11.c | |
parent | c202ba7d34bd7feba88d7c0ee1aa9ef7be18bca9 (diff) |
arm11: add etmr/etmw registers to access ETM via DBGTAP scan chain
First cut of these commands. Øyvind tinkered a bit with
the number parsing to bring it up to speed + rebased it.
Ready for testing.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
Diffstat (limited to 'src/target/arm11.c')
-rw-r--r-- | src/target/arm11.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/target/arm11.c b/src/target/arm11.c index 9d885de4..fe39d6e8 100644 --- a/src/target/arm11.c +++ b/src/target/arm11.c @@ -2143,6 +2143,59 @@ static int arm11_mcr(target_t *target, int cpnum, return arm11_mrc_inner(target, cpnum, op1, op2, CRn, CRm, &value, false); } +static int arm11_handle_etm_read_write(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, bool read) +{ + if (argc != (read ? 2 : 3)) + { + LOG_ERROR("Invalid number of arguments."); + return ERROR_COMMAND_SYNTAX_ERROR; + } + + arm11_common_t * arm11 = arm11_find_target(args[0]); + + if (!arm11) + { + LOG_ERROR("Parameter 1 is not the target name of an ARM11 device."); + return ERROR_COMMAND_SYNTAX_ERROR; + } + + uint32_t address; + COMMAND_PARSE_NUMBER(u32, args[1], address); + + if (!read) + { + uint32_t value; + COMMAND_PARSE_NUMBER(u32, args[2], value); + + LOG_INFO("ETM write register 0x%02" PRIx32 " (%" PRId32 ") = 0x%08" PRIx32 " (%" PRId32 ")", + address, address, value, value); + + CHECK_RETVAL(arm11_write_etm(arm11, address, value)); + } + else + { + uint32_t value; + + CHECK_RETVAL(arm11_read_etm(arm11, address, &value)); + + LOG_INFO("ETM read register 0x%02" PRIx32 " (%" PRId32 ") = 0x%08" PRIx32 " (%" PRId32 ")", + address, address, value, value); + } + + return ERROR_OK; +} + +int arm11_handle_etmr(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + return arm11_handle_etm_read_write(cmd_ctx, cmd, args, argc, true); +} + +int arm11_handle_etmw(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + return arm11_handle_etm_read_write(cmd_ctx, cmd, args, argc, false); +} + + #define ARM11_HANDLER(x) .x = arm11_##x target_type_t arm11_target = { @@ -2196,6 +2249,14 @@ int arm11_register_commands(struct command_context_s *cmd_ctx) top_cmd = register_command(cmd_ctx, NULL, "arm11", NULL, COMMAND_ANY, NULL); + register_command(cmd_ctx, top_cmd, "etmr", + arm11_handle_etmr, COMMAND_ANY, + "Read Embedded Trace Macrocell (ETM) register. etmr <jtag_target> <ETM register address>"); + + register_command(cmd_ctx, top_cmd, "etmw", + arm11_handle_etmw, COMMAND_ANY, + "Write Embedded Trace Macrocell (ETM) register. etmr <jtag_target> <ETM register address> <value>"); + /* "hardware_step" is only here to check if the default * simulate + breakpoint implementation is broken. * TEMPORARY! NOT DOCUMENTED! |