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Nicolas Pitre nico at cam.org add ft2232 layout for the Marvell SheevaPlug 

git-svn-id: svn://svn.berlios.de/openocd/trunk@1390 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-03-01 21:01:11 +00:00
parent f8c97a5d2e
commit 3822831792
2 changed files with 78 additions and 0 deletions
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74
src/jtag/ft2232.c
View File

@ -124,6 +124,7 @@ int turtle_init(void);
int comstick_init(void);
int stm32stick_init(void);
int axm0432_jtag_init(void);
int sheevaplug_init(void);
/* reset procedures for supported layouts */
void usbjtag_reset(int trst, int srst);
@ -134,6 +135,7 @@ 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);
void sheevaplug_reset(int trst, int srst);
/* blink procedures for layouts that support a blinking led */
void olimex_jtag_blink(void);
@ -153,6 +155,7 @@ ft2232_layout_t ft2232_layouts[] =
{ "comstick", comstick_init, comstick_reset, NULL },
{ "stm32stick", stm32stick_init, stm32stick_reset, NULL },
{ "axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL },
{"sheevaplug", sheevaplug_init, sheevaplug_reset, NULL },
{ NULL, NULL, NULL },
};
@ -1253,6 +1256,26 @@ void stm32stick_reset(int trst, int srst)
}
void sheevaplug_reset(int trst, int srst)
{
if (trst == 1)
high_output &= ~nTRST;
else if (trst == 0)
high_output |= nTRST;
if (srst == 1)
high_output &= ~nSRSTnOE;
else if (srst == 0)
high_output |= nSRSTnOE;
/* command "set data bits high 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);
}
int ft2232_execute_queue()
{
jtag_command_t* cmd = jtag_command_queue; /* currently processed command */
@ -2261,6 +2284,57 @@ int stm32stick_init(void)
}
int sheevaplug_init(void)
{
u8 buf[3];
u32 bytes_written;
low_output = 0x08;
low_direction = 0x1b;
/* 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 */
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 'sheevaplug' layout");
return ERROR_JTAG_INIT_FAILED;
}
nTRSTnOE = 0x1;
nTRST = 0x02;
nSRSTnOE = 0x4;
nSRST = 0x08;
high_output = 0x0;
high_direction = 0x0f;
/* nTRST is always push-pull */
high_output &= ~nTRSTnOE;
high_output |= nTRST;
/* nSRST is always open-drain */
high_output |= nSRSTnOE;
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 */
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 'sheevaplug' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
void olimex_jtag_blink(void)
{
/* Olimex ARM-USB-OCD has a LED connected to ACBUS3

4
src/target/interface/sheevaplug.cfg Normal file
View File

@ -0,0 +1,4 @@
interface ft2232
ft2232_layout sheevaplug
ft2232_vid_pid 0x0403 0x6010
jtag_khz 3000