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authorkc8apf <kc8apf@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2008-12-11 19:03:17 +0000
committerkc8apf <kc8apf@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2008-12-11 19:03:17 +0000
commit9e67c0e4235ec575f44255f9459bcf24941be594 (patch)
tree1f1714844b17fc33fbed787ca29e7823410bcba0 /src
parenta53c304319f7d6c41bc2e7544193ac08f0fe50dd (diff)
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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
Diffstat (limited to 'src')
-rw-r--r--src/jtag/ft2232.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c
index 47376241..35275f5f 100644
--- a/src/jtag/ft2232.c
+++ b/src/jtag/ft2232.c
@@ -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];