Commit 9e67c0e4 authored by kc8apf's avatar kc8apf
Browse files

AXM0432 layout for FDTI provided by Alan Carvalho de Assis (Freescale)

git-svn-id: svn://svn.berlios.de/openocd/trunk@1226 b42882b7-edfa-0310-969c-e2dbd0fdcd60
parent a53c3043
......@@ -102,6 +102,7 @@ int flyswatter_init(void);
int turtle_init(void);
int comstick_init(void);
int stm32stick_init(void);
int axm0432_jtag_init(void);
/* reset procedures for supported layouts */
void usbjtag_reset(int trst, int srst);
......@@ -111,6 +112,8 @@ void flyswatter_reset(int trst, int srst);
void turtle_reset(int trst, int srst);
void comstick_reset(int trst, int srst);
void stm32stick_reset(int trst, int srst);
void axm0432_jtag_reset(int trst, int srst);
/* blink procedures for layouts that support a blinking led */
void olimex_jtag_blink(void);
......@@ -129,6 +132,7 @@ ft2232_layout_t ft2232_layouts[] =
{"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
{"comstick", comstick_init, comstick_reset, NULL},
{"stm32stick", stm32stick_init, stm32stick_reset, NULL},
{"axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL},
{NULL, NULL, NULL},
};
......@@ -1045,6 +1049,38 @@ void olimex_jtag_reset(int trst, int srst)
LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}
void axm0432_jtag_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 low byte" */
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
BUFFER_ADD = high_direction;
LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}
void flyswatter_reset(int trst, int srst)
{
if (trst == 1)
......@@ -1722,6 +1758,82 @@ int usbjtag_init(void)
return ERROR_OK;
}
int axm0432_jtag_init(void)
{
u8 buf[3];
u8 buf_read[1];
u32 bytes_written;
u32 bytes_read;
low_output = 0x08;
low_direction = 0x2b;
/* 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 */
LOG_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))
{
LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
if (strcmp(layout->name, "axm0432_jtag") == 0)
{
nTRST = 0x08;
nTRSTnOE = 0x0; /* No output enable for TRST*/
nSRST = 0x04;
nSRSTnOE = 0x0; /* No output enable for SRST*/
}
else
{
LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
exit(-1);
}
high_output = 0x0;
high_direction = 0x0c;
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
}
else
{
high_output |= nTRST;
}
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
{
LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
}
else
{
high_output |= nSRST;
}
/* 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, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
int jtagkey_init(void)
{
u8 buf[3];
......
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