#endif
// here we shuffle N bits out/in
-static __inline void scanBits(const uint8_t *out_value, uint8_t *in_value, int num_bits, bool pause, tap_state_t shiftState, tap_state_t end_state)
+static __inline void scanBits(const uint8_t *out_value, uint8_t *in_value, int num_bits, bool pause_now, tap_state_t shiftState, tap_state_t end_state)
{
tap_state_t pause_state = shiftState;
for (int j = 0; j < num_bits; j += 32)
{
k = 32;
/* we have more to shift out */
- } else if (pause)
+ } else if (pause_now)
{
/* this was the last to shift out this time */
pause_state = end_state;
*post = post_bits;
}
+/*
+ static const int embeddedice_num_bits[] = {32, 6};
+ uint32_t values[2];
+
+ values[0] = value;
+ values[1] = (1 << 5) | reg_addr;
+
+ jtag_add_dr_out(tap,
+ 2,
+ embeddedice_num_bits,
+ values,
+ TAP_IDLE);
+*/
+
void embeddedice_write_dcc(struct jtag_tap *tap, int reg_addr, uint8_t *buffer, int little, int count)
{
-
+#if 0
+ int i;
+ for (i = 0; i < count; i++)
+ {
+ embeddedice_write_reg_inner(tap, reg_addr, fast_target_buffer_get_u32(buffer, little));
+ buffer += 4;
+ }
+#else
int pre_bits;
int post_bits;
jtag_pre_post_bits(tap, &pre_bits, &post_bits);
- if (pre_bits + post_bits + 6 > 32)
+ if ((pre_bits > 32) || (post_bits + 6 > 32))
{
int i;
for (i = 0; i < count; i++)
}
} else
{
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, pre_bits, 0);
int i;
- for (i = 0; i < count - 1; i++)
+ for (i = 0; i < count; i++)
{
/* Fewer pokes means we get to use the FIFO more efficiently */
+ shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, pre_bits, 0);
shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, 32, fast_target_buffer_get_u32(buffer, little));
- shiftValueInner(TAP_DRSHIFT, TAP_IDLE, 6 + post_bits + pre_bits, (reg_addr | (1 << 5)));
+ /* Danger! here we need to exit into the TAP_IDLE state to make
+ * DCC pick up this value.
+ */
+ shiftValueInner(TAP_DRSHIFT, TAP_IDLE, 6 + post_bits, (reg_addr | (1 << 5)));
buffer += 4;
}
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, 32, fast_target_buffer_get_u32(buffer, little));
- shiftValueInner(TAP_DRSHIFT, TAP_IDLE, 6 + post_bits, (reg_addr | (1 << 5)));
}
+#endif
}
int arm11_run_instr_data_to_core_noack_inner(struct jtag_tap * tap, uint32_t opcode, uint32_t * data, size_t count)
{
-#if 0
- int arm11_run_instr_data_to_core_noack_inner_default(struct jtag_tap * tap, uint32_t opcode, uint32_t * data, size_t count);
- return arm11_run_instr_data_to_core_noack_inner_default(tap, opcode, data, count);
-#else
- static const int bits[] = {32, 2};
- uint32_t values[] = {0, 0};
-
- /* FIX!!!!!! the target_write_memory() API started this nasty problem
- * with unaligned uint32_t * pointers... */
- const uint8_t *t = (const uint8_t *)data;
-
-
/* bypass bits before and after */
int pre_bits;
int post_bits;
jtag_pre_post_bits(tap, &pre_bits, &post_bits);
-
- bool found = false;
- struct jtag_tap *cur_tap, *nextTap;
- for (cur_tap = jtag_tap_next_enabled(NULL); cur_tap!= NULL; cur_tap = nextTap)
- {
- nextTap = jtag_tap_next_enabled(cur_tap);
- if (cur_tap == tap)
- {
- found = true;
- } else
- {
- if (found)
- {
- post_bits++;
- } else
- {
- pre_bits++;
- }
- }
- }
-
post_bits+=2;
-
- while (--count > 0)
+ if ((pre_bits > 32) || (post_bits > 32))
{
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, pre_bits, 0);
-
- uint32_t value;
- value = *t++;
- value |= (*t++<<8);
- value |= (*t++<<16);
- value |= (*t++<<24);
+ int arm11_run_instr_data_to_core_noack_inner_default(struct jtag_tap * tap, uint32_t opcode, uint32_t * data, size_t count);
+ return arm11_run_instr_data_to_core_noack_inner_default(tap, opcode, data, count);
+ } else
+ {
+ static const int bits[] = {32, 2};
+ uint32_t values[] = {0, 0};
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, 32, value);
- /* minimum 2 bits */
- shiftValueInner(TAP_DRSHIFT, TAP_DRPAUSE, post_bits, 0);
+ /* FIX!!!!!! the target_write_memory() API started this nasty problem
+ * with unaligned uint32_t * pointers... */
+ const uint8_t *t = (const uint8_t *)data;
+ while (--count > 0)
+ {
#if 1
- /* copy & paste from arm11_dbgtap.c */
- //TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
-
- waitIdle();
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
- /* we don't have to wait for the queue to empty here. waitIdle(); */
- ZY1000_POKE(ZY1000_JTAG_BASE + 0x20, TAP_DRSHIFT);
+ /* Danger! This code doesn't update cmd_queue_cur_state, so
+ * invoking jtag_add_pathmove() before jtag_add_dr_out() after
+ * this loop would fail!
+ */
+ shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, pre_bits, 0);
+
+ uint32_t value;
+ value = *t++;
+ value |= (*t++<<8);
+ value |= (*t++<<16);
+ value |= (*t++<<24);
+
+ shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, 32, value);
+ /* minimum 2 bits */
+ shiftValueInner(TAP_DRSHIFT, TAP_DRPAUSE, post_bits, 0);
+
+ /* copy & paste from arm11_dbgtap.c */
+ //TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
+ /* KLUDGE! we have to flush the fifo or the Nios CPU locks up.
+ * This is probably a bug in the Avalon bus(cross clocking bridge?)
+ * or in the jtag registers module.
+ */
+ waitIdle();
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
+ /* we don't have to wait for the queue to empty here */
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x20, TAP_DRSHIFT);
+ waitIdle();
#else
- static const tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
- {
- TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
- };
-
- jtag_add_pathmove(ARRAY_SIZE(arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay),
- arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay);
+ static const tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
+ {
+ TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
+ };
+
+ values[0] = *t++;
+ values[0] |= (*t++<<8);
+ values[0] |= (*t++<<16);
+ values[0] |= (*t++<<24);
+
+ jtag_add_dr_out(tap,
+ 2,
+ bits,
+ values,
+ TAP_IDLE);
+
+ jtag_add_pathmove(ARRAY_SIZE(arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay),
+ arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay);
#endif
- }
+ }
- values[0] = *t++;
- values[0] |= (*t++<<8);
- values[0] |= (*t++<<16);
- values[0] |= (*t++<<24);
+ values[0] = *t++;
+ values[0] |= (*t++<<8);
+ values[0] |= (*t++<<16);
+ values[0] |= (*t++<<24);
- /* This will happen on the last iteration updating the current tap state
- * so we don't have to track it during the common code path */
- jtag_add_dr_out(tap,
- 2,
- bits,
- values,
- TAP_IDLE);
+ /* This will happen on the last iteration updating cmd_queue_cur_state
+ * so we don't have to track it during the common code path
+ */
+ jtag_add_dr_out(tap,
+ 2,
+ bits,
+ values,
+ TAP_IDLE);
- return jtag_execute_queue();
-#endif
+ return jtag_execute_queue();
+ }
}
#if BUILD_ECOSBOARD
static char tcpip_stack[2048];
-
static cyg_thread tcpip_thread_object;
static cyg_handle_t tcpip_thread_handle;
+static char watchdog_stack[2048];
+static cyg_thread watchdog_thread_object;
+static cyg_handle_t watchdog_thread_handle;
+
/* Infinite loop peeking & poking */
static void tcpipserver(void)
{
}
+#ifdef WATCHDOG_BASE
+/* If we connect to port 8888 we must send a char every 10s or the board resets itself */
+static void watchdog_server(cyg_addrword_t data)
+{
+ int so_reuseaddr_option = 1;
+
+ int fd;
+ if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+ {
+ LOG_ERROR("error creating socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
+ sizeof(int));
+
+ struct sockaddr_in sin;
+ unsigned int address_size;
+ address_size = sizeof(sin);
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = INADDR_ANY;
+ sin.sin_port = htons(8888);
+
+ if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
+ {
+ LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ if (listen(fd, 1) == -1)
+ {
+ LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+
+ for (;;)
+ {
+ int watchdog_ip = accept(fd, (struct sockaddr *) &sin, &address_size);
+
+ /* Start watchdog, must be reset every 10 seconds. */
+ HAL_WRITE_UINT32(WATCHDOG_BASE + 4, 4);
+
+ if (watchdog_ip < 0)
+ {
+ LOG_ERROR("couldn't open watchdog socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ int flag = 1;
+ setsockopt(watchdog_ip, /* socket affected */
+ IPPROTO_TCP, /* set option at TCP level */
+ TCP_NODELAY, /* name of option */
+ (char *)&flag, /* the cast is historical cruft */
+ sizeof(int)); /* length of option value */
+
+
+ char buf;
+ for (;;)
+ {
+ if (read(watchdog_ip, &buf, 1) == 1)
+ {
+ /* Reset timer */
+ HAL_WRITE_UINT32(WATCHDOG_BASE + 8, 0x1234);
+ /* Echo so we can telnet in and see that resetting works */
+ write(watchdog_ip, &buf, 1);
+ } else
+ {
+ /* Stop tickling the watchdog, the CPU will reset in < 10 seconds
+ * now.
+ */
+ return;
+ }
+
+ }
+
+ /* Never reached */
+ }
+}
+#endif
+
int interface_jtag_add_sleep(uint32_t us)
{
jtag_sleep(us);
(void *) tcpip_stack, sizeof(tcpip_stack),
&tcpip_thread_handle, &tcpip_thread_object);
cyg_thread_resume(tcpip_thread_handle);
+#ifdef WATCHDOG_BASE
+ cyg_thread_create(1, watchdog_server, (cyg_addrword_t) 0, "watchdog tcip/ip server",
+ (void *) watchdog_stack, sizeof(watchdog_stack),
+ &watchdog_thread_handle, &watchdog_thread_object);
+ cyg_thread_resume(watchdog_thread_handle);
+#endif
#endif
return ERROR_OK;
projects / openocd / blobdiff