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- added support for Hitex comstick. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@144 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak 2007-04-28 08:44:22 +00:00
parent 2f7eca4707
commit a1562e8f56
1 changed files with 81 additions and 7 deletions
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88
src/jtag/ft2232.c
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@ -97,6 +97,7 @@ int jtagkey_init(void);
int olimex_jtag_init(void);
int m5960_init(void);
int turtle_init(void);
int comstick_init(void);
/* reset procedures for supported layouts */
void usbjtag_reset(int trst, int srst);
@ -104,6 +105,7 @@ void jtagkey_reset(int trst, int srst);
void olimex_jtag_reset(int trst, int srst);
void m5960_reset(int trst, int srst);
void turtle_reset(int trst, int srst);
void comstick_reset(int trst, int srst);
/* blink procedures for layouts that support a blinking led */
void olimex_jtag_blink(void);
@ -119,7 +121,8 @@ ft2232_layout_t ft2232_layouts[] =
{"evb_lm3s811", usbjtag_init, usbjtag_reset, NULL},
{"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink},
{"m5960", m5960_init, m5960_reset, NULL},
{"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
{"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
{"comstick", comstick_init, comstick_reset, NULL},
{NULL, NULL, NULL},
};
@ -1012,29 +1015,57 @@ void m5960_reset(int trst, int srst)
BUFFER_ADD = 0x80;
BUFFER_ADD = low_output;
BUFFER_ADD = low_direction;
DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
}
void turtle_reset(int trst, int srst)
{
trst = trst;
trst = trst;
if (srst == 1)
{
low_output |= nSRST;
low_output |= nSRST;
}
else if (srst == 0)
{
low_output &= ~nSRST;
}
/* command "set data bits high byte" */
/* command "set data bits low byte" */
BUFFER_ADD = 0x80;
BUFFER_ADD = low_output;
BUFFER_ADD = low_direction;
DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
}
void comstick_reset(int trst, int srst)
{
if (trst == 1)
{
cur_state = TAP_TLR;
high_output &= ~nTRST;
}
else if (trst == 0)
{
high_output |= nTRST;
}
if (srst == 1)
{
high_output &= ~nSRST;
}
else if (srst == 0)
{
high_output |= nSRST;
}
/* command "set data bits high byte" */
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
BUFFER_ADD = high_direction;
DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}
int ft2232_execute_queue()
{
jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
@ -1815,7 +1846,7 @@ int turtle_init(void)
return ERROR_JTAG_INIT_FAILED;
}
nSRST = 0x40;
nSRST = 0x40;
high_output = 0x00;
high_direction = 0x0C;
@ -1835,6 +1866,49 @@ int turtle_init(void)
return ERROR_OK;
}
int comstick_init(void)
{
u8 buf[3];
u32 bytes_written;
low_output = 0x08;
low_direction = 0x0b;
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
ERROR("couldn't initialize FT2232 with 'comstick' layout");
return ERROR_JTAG_INIT_FAILED;
}
nTRST = 0x01;
nTRSTnOE = 0x00; /* no output enable for nTRST */
nSRST = 0x02;
nSRSTnOE = 0x00; /* no output enable for nSRST */
high_output = 0x03;
high_direction = 0x03;
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output;
buf[2] = high_direction;
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
ERROR("couldn't initialize FT2232 with 'comstick' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
void olimex_jtag_blink(void)
{
/* Olimex ARM-USB-OCD has a LED connected to ACBUS3