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riscv-openocd
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Introduced jtag_init and "jtag arp_init" to allow target scripts more control over how OpenOCD starts up and initializes the target. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@2805 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-10-06 08:10:57 +00:00
parent a2886fe3c6
commit 39b57471bf
4 changed files with 37 additions and 13 deletions
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10
src/helper/startup.tcl
View File

@ -359,3 +359,13 @@ proc capture_catch {a} {
} result
return $result
}
# Executed during "init". Can be implemented by target script
# tar
proc jtag_init {} {
if {[catch {jtag arp_init} err]!=0} {
# try resetting additionally
jtag arp_init-reset
}
}

22
src/jtag/core.c
View File

@ -1,16 +1,16 @@
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* Copyright (C) 2009 Zachary T Welch *
* zw@superlucidity.net *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* Copyright (C) 2007,2008,2009 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2009 SoftPLC Corporation *
* http://softplc.com *
* dick@softplc.com *
* *
* Copyright (C) 2009 Zachary T Welch *
* zw@superlucidity.net *
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
@ -1230,7 +1230,7 @@ int jtag_interface_init(struct command_context_s *cmd_ctx)
return ERROR_OK;
}
static int jtag_init_inner(struct command_context_s *cmd_ctx)
int jtag_init_inner(struct command_context_s *cmd_ctx)
{
jtag_tap_t *tap;
int retval;
@ -1334,11 +1334,11 @@ int jtag_init(struct command_context_s *cmd_ctx)
int retval;
if ((retval = jtag_interface_init(cmd_ctx)) != ERROR_OK)
return retval;
if (jtag_init_inner(cmd_ctx) == ERROR_OK)
{
return ERROR_OK;
}
return jtag_init_reset(cmd_ctx);
if (Jim_Eval_Named(interp, "jtag_init", __FILE__, __LINE__) != JIM_OK)
return ERROR_FAIL;
return ERROR_OK;
}
unsigned jtag_get_speed_khz(void)

5
src/jtag/jtag.h
View File

@ -335,8 +335,9 @@ extern int jtag_interface_quit(void);
extern int jtag_init(struct command_context_s* cmd_ctx);
/// reset, then initialize JTAG chain
extern int jtag_init_reset(struct command_context_s* cmd_ctx);
extern int jtag_register_commands(struct command_context_s* cmd_ctx);
extern int jtag_init_reset(struct command_context_s* cmd_ctx);
extern int jtag_register_commands(struct command_context_s* cmd_ctx);
extern int jtag_init_inner(struct command_context_s *cmd_ctx);
/**
* @file

13
src/jtag/tcl.c
View File

@ -410,6 +410,7 @@ static int jim_jtag_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
enum {
JTAG_CMD_INTERFACE,
JTAG_CMD_INIT,
JTAG_CMD_INIT_RESET,
JTAG_CMD_NEWTAP,
JTAG_CMD_TAPENABLE,
@ -422,6 +423,7 @@ static int jim_jtag_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
const Jim_Nvp jtag_cmds[] = {
{ .name = "interface" , .value = JTAG_CMD_INTERFACE },
{ .name = "arp_init" , .value = JTAG_CMD_INIT },
{ .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
{ .name = "newtap" , .value = JTAG_CMD_NEWTAP },
{ .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
@ -455,6 +457,17 @@ static int jim_jtag_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
}
Jim_SetResultString(goi.interp, jtag_interface->name, -1);
return JIM_OK;
case JTAG_CMD_INIT:
if (goi.argc != 0) {
Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
return JIM_ERR;
}
e = jtag_init_inner(context);
if (e != ERROR_OK) {
Jim_SetResult_sprintf(goi.interp, "error: %d", e);
return JIM_ERR;
}
return JIM_OK;
case JTAG_CMD_INIT_RESET:
if (goi.argc != 0) {
Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");