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add basic TI xds100v2 support 

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
This commit is contained in:
Mathias K 2011-01-26 12:28:48 +00:00 committed by Spencer Oliver
parent 5b34018ccd
commit 9629adcbde
1 changed files with 94 additions and 0 deletions
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94
src/jtag/drivers/ft2232.c
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@ -190,6 +190,7 @@ static int ktlink_init(void);
static int redbee_init(void);
static int lisa_l_init(void);
static int flossjtag_init(void);
static int xds100v2_init(void);
/* reset procedures for supported layouts */
static void ftx23_reset(int trst, int srst);
@ -205,6 +206,7 @@ static void icebear_jtag_reset(int trst, int srst);
static void signalyzer_h_reset(int trst, int srst);
static void ktlink_reset(int trst, int srst);
static void redbee_reset(int trst, int srst);
static void xds100v2_reset(int trst, int srst);
/* blink procedures for layouts that support a blinking led */
static void olimex_jtag_blink(void);
@ -318,6 +320,10 @@ static const struct ft2232_layout ft2232_layouts[] =
.reset = ftx23_reset,
.blink = flossjtag_blink,
},
{ .name = "xds100v2",
.init = xds100v2_init,
.reset = xds100v2_reset,
},
{ .name = NULL, /* END OF TABLE */ },
};
@ -1683,6 +1689,36 @@ static void redbee_reset(int trst, int srst)
high_direction);
}
static void xds100v2_reset(int trst, int srst)
{
if (trst == 1)
{
tap_set_state(TAP_RESET);
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 low byte" */
buffer_write(0x82);
buffer_write(high_output);
buffer_write(high_direction);
LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, "
"high_direction: 0x%2.2x", trst, srst, high_output,
high_direction);
}
static int ft2232_execute_runtest(struct jtag_command *cmd)
{
int retval;
@ -3172,6 +3208,64 @@ static int flossjtag_init(void)
return ftx232_dbus_write();
}
static int xds100v2_init(void)
{
uint8_t buf[3];
uint32_t bytes_written;
low_output = 0x3A;
low_direction = 0x7B;
/* 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[12]=out, n[ST]srst = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK)
{
LOG_ERROR("couldn't initialize FT2232 with 'xds100v2' layout");
return ERROR_JTAG_INIT_FAILED;
}
nTRST = 0x10;
nTRSTnOE = 0x0; /* not output enable for nTRST */
nSRST = 0x00; /* TODO: SRST is not supported yet */
nSRSTnOE = 0x00; /* no output enable for nSRST */
high_output = 0x00;
high_direction = 0x59;
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output; /* value */
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK)
{
LOG_ERROR("couldn't initialize FT2232 with 'xds100v2' layout");
return ERROR_JTAG_INIT_FAILED;
}
high_output = 0x86;
high_direction = 0x59;
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output; /* value */
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK)
{
LOG_ERROR("couldn't initialize FT2232 with 'xds100v2' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
static void olimex_jtag_blink(void)
{
/* Olimex ARM-USB-OCD has a LED connected to ACBUS3