diff options
author | ntfreak <ntfreak@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-09-27 13:00:01 +0000 |
---|---|---|
committer | ntfreak <ntfreak@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-09-27 13:00:01 +0000 |
commit | 279affdb982be60dd80517e5c07651726ac46b2c (patch) | |
tree | e9a550a1fff164997023d2447e05c3e2a26d0b9d /src/jtag | |
parent | c90c48b00bacc8c0aa8b95b3e51c84835410e424 (diff) |
- convert spaces to tabs in at91sam7.[ch]
- add missing svn props
git-svn-id: svn://svn.berlios.de/openocd/trunk@1009 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag')
-rw-r--r-- | src/jtag/zy1000.c | 1478 |
1 files changed, 739 insertions, 739 deletions
diff --git a/src/jtag/zy1000.c b/src/jtag/zy1000.c index 8c10a9ff..55830323 100644 --- a/src/jtag/zy1000.c +++ b/src/jtag/zy1000.c @@ -1,739 +1,739 @@ -/***************************************************************************
- * Copyright (C) 2007-2008 by Øyvind Harboe *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-
-#include "log.h"
-#include "jtag.h"
-#include "bitbang.h"
-#include "../target/embeddedice.h"
-
-
-#include <cyg/hal/hal_io.h> // low level i/o
-#include <cyg/hal/var_io.h> // common registers
-#include <cyg/hal/plf_io.h> // platform registers
-#include <cyg/hal/hal_diag.h>
-
-#include <stdlib.h>
-
-
-extern int jtag_error;
-
-/* low level command set
- */
-int eCosBoard_read(void);
-static void eCosBoard_write(int tck, int tms, int tdi);
-void eCosBoard_reset(int trst, int srst);
-
-
-int eCosBoard_speed(int speed);
-int eCosBoard_register_commands(struct command_context_s *cmd_ctx);
-int eCosBoard_init(void);
-int eCosBoard_quit(void);
-
-/* interface commands */
-int eCosBoard_handle_eCosBoard_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-static int eCosBoard_khz(int khz, int *jtag_speed)
-{
- if (khz==0)
- {
- *jtag_speed=0;
- }
- else
- {
- *jtag_speed=64000/khz;
- }
- return ERROR_OK;
-}
-
-static int eCosBoard_speed_div(int speed, int *khz)
-{
- if (speed==0)
- {
- *khz = 0;
- }
- else
- {
- *khz=64000/speed;
- }
-
- return ERROR_OK;
-}
-
-
-jtag_interface_t eCosBoard_interface =
-{
- .name = "ZY1000",
- .execute_queue = bitbang_execute_queue,
- .speed = eCosBoard_speed,
- .register_commands = eCosBoard_register_commands,
- .init = eCosBoard_init,
- .quit = eCosBoard_quit,
- .khz = eCosBoard_khz,
- .speed_div = eCosBoard_speed_div,
-};
-
-bitbang_interface_t eCosBoard_bitbang =
-{
- .read = eCosBoard_read,
- .write = eCosBoard_write,
- .reset = eCosBoard_reset
-};
-
-
-
-static void eCosBoard_write(int tck, int tms, int tdi)
-{
-
-}
-
-int eCosBoard_read(void)
-{
- return -1;
-}
-
-extern bool readSRST();
-
-void eCosBoard_reset(int trst, int srst)
-{
- LOG_DEBUG("zy1000 trst=%d, srst=%d", trst, srst);
- if(!srst)
- {
- ZY1000_POKE(0x08000014, 0x00000001);
- }
- else
- {
- /* Danger!!! if clk!=0 when in
- * idle in TAP_RTI, reset halt on str912 will fail.
- */
- ZY1000_POKE(0x08000010, 0x00000001);
- }
-
- if(!trst)
- {
- ZY1000_POKE(0x08000014, 0x00000002);
- }
- else
- {
- /* assert reset */
- ZY1000_POKE(0x08000010, 0x00000002);
- }
-
- if (trst||(srst&&(jtag_reset_config & RESET_SRST_PULLS_TRST)))
- {
- waitIdle();
- /* we're now in the TLR state until trst is deasserted */
- ZY1000_POKE(0x08000020, TAP_TLR);
- } else
- {
- /* We'll get RCLK failure when we assert TRST, so clear any false positives here */
- ZY1000_POKE(0x08000014, 0x400);
- }
-
- /* wait for srst to float back up */
- if (!srst)
- {
- int i;
- for (i=0; i<1000; i++)
- {
- // We don't want to sense our own reset, so we clear here.
- // There is of course a timing hole where we could loose
- // a "real" reset.
- if (!readSRST())
- break;
-
- /* wait 1ms */
- alive_sleep(1);
- }
-
- if (i==1000)
- {
- LOG_USER("SRST didn't deassert after %dms", i);
- } else if (i>1)
- {
- LOG_USER("SRST took %dms to deassert", i);
- }
- }
-}
-
-int eCosBoard_speed(int speed)
-{
- if(speed == 0)
- {
- /*0 means RCLK*/
- speed = 0;
- ZY1000_POKE(0x08000010, 0x100);
- LOG_DEBUG("jtag_speed using RCLK");
- }
- else
- {
- if(speed > 8190 || speed < 2)
- {
- LOG_ERROR("valid ZY1000 jtag_speed=[8190,2]. Divisor is 64MHz / even values between 8190-2, i.e. min 7814Hz, max 32MHz");
- return ERROR_INVALID_ARGUMENTS;
- }
-
- LOG_USER("jtag_speed %d => JTAG clk=%f", speed, 64.0/(float)speed);
- ZY1000_POKE(0x08000014, 0x100);
- ZY1000_POKE(0x0800001c, speed&~1);
- }
- return ERROR_OK;
-}
-
-int eCosBoard_register_commands(struct command_context_s *cmd_ctx)
-{
- return ERROR_OK;
-}
-
-
-int eCosBoard_init(void)
-{
- ZY1000_POKE(0x08000010, 0x30); // Turn on LED1 & LED2
-
- /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */
- eCosBoard_reset(0, 0);
- eCosBoard_speed(jtag_speed);
-
- bitbang_interface = &eCosBoard_bitbang;
-
- return ERROR_OK;
-}
-
-int eCosBoard_quit(void)
-{
-
- return ERROR_OK;
-}
-
-
-
-/* loads a file and returns a pointer to it in memory. The file contains
- * a 0 byte(sentinel) after len bytes - the length of the file. */
-int loadFile(const char *fileName, void **data, int *len)
-{
- FILE * pFile;
- pFile = fopen (fileName,"rb");
- if (pFile==NULL)
- {
- LOG_ERROR("Can't open %s\n", fileName);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- if (fseek (pFile, 0, SEEK_END)!=0)
- {
- LOG_ERROR("Can't open %s\n", fileName);
- fclose(pFile);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- *len=ftell (pFile);
- if (*len==-1)
- {
- LOG_ERROR("Can't open %s\n", fileName);
- fclose(pFile);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- if (fseek (pFile, 0, SEEK_SET)!=0)
- {
- LOG_ERROR("Can't open %s\n", fileName);
- fclose(pFile);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- *data=malloc(*len+1);
- if (*data==NULL)
- {
- LOG_ERROR("Can't open %s\n", fileName);
- fclose(pFile);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- if (fread(*data, 1, *len, pFile)!=*len)
- {
- fclose(pFile);
- free(*data);
- LOG_ERROR("Can't open %s\n", fileName);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- fclose (pFile);
- *(((char *)(*data))+*len)=0; /* sentinel */
-
- return ERROR_OK;
-
-
-
-}
-
-
-
-
-int interface_jtag_execute_queue(void)
-{
- cyg_uint32 empty;
-
- waitIdle();
- ZY1000_PEEK(0x08000010, empty);
- /* clear JTAG error register */
- ZY1000_POKE(0x08000014, 0x400);
-
- if ((empty&0x400)!=0)
- {
- LOG_WARNING("RCLK timeout");
- /* the error is informative only as we don't want to break the firmware if there
- * is a false positive.
- */
-// return ERROR_FAIL;
- }
- return ERROR_OK;
-}
-
-
-
-
-
-static cyg_uint32 getShiftValue()
-{
- cyg_uint32 value;
- waitIdle();
- ZY1000_PEEK(0x0800000c, value);
- VERBOSE(LOG_INFO("getShiftValue %08x", value));
- return value;
-}
-#if 0
-static cyg_uint32 getShiftValueFlip()
-{
- cyg_uint32 value;
- waitIdle();
- ZY1000_PEEK(0x08000018, value);
- VERBOSE(LOG_INFO("getShiftValue %08x (flipped)", value));
- return value;
-}
-#endif
-
-#if 0
-static void shiftValueInnerFlip(const enum tap_state state, const enum tap_state endState, int repeat, cyg_uint32 value)
-{
- VERBOSE(LOG_INFO("shiftValueInner %s %s %d %08x (flipped)", tap_state_strings[state], tap_state_strings[endState], repeat, value));
- cyg_uint32 a,b;
- a=state;
- b=endState;
- ZY1000_POKE(0x0800000c, value);
- ZY1000_POKE(0x08000008, (1<<15)|(repeat<<8)|(a<<4)|b);
- VERBOSE(getShiftValueFlip());
-}
-#endif
-
-extern int jtag_check_value(u8 *captured, void *priv);
-
-static void gotoEndState()
-{
- setCurrentState(cmd_queue_end_state);
-}
-
-static __inline void scanFields(int num_fields, scan_field_t *fields, enum tap_state shiftState, int pause)
-{
- int i;
- int j;
- int k;
-
- for (i = 0; i < num_fields; i++)
- {
- cyg_uint32 value;
-
- static u8 *in_buff=NULL; /* pointer to buffer for scanned data */
- static int in_buff_size=0;
- u8 *inBuffer=NULL;
-
-
- // figure out where to store the input data
- int num_bits=fields[i].num_bits;
- if (fields[i].in_value!=NULL)
- {
- inBuffer=fields[i].in_value;
- } else if (fields[i].in_handler!=NULL)
- {
- if (in_buff_size*8<num_bits)
- {
- // we need more space
- if (in_buff!=NULL)
- free(in_buff);
- in_buff=NULL;
- in_buff_size=(num_bits+7)/8;
- in_buff=malloc(in_buff_size);
- if (in_buff==NULL)
- {
- LOG_ERROR("Out of memory");
- jtag_error=ERROR_JTAG_QUEUE_FAILED;
- return;
- }
- }
- inBuffer=in_buff;
- }
-
- // here we shuffle N bits out/in
- j=0;
- while (j<num_bits)
- {
- enum tap_state pause_state;
- int l;
- k=num_bits-j;
- pause_state=(shiftState==TAP_SD)?TAP_SD:TAP_SI;
- if (k>32)
- {
- k=32;
- /* we have more to shift out */
- } else if (pause&&(i == num_fields-1))
- {
- /* this was the last to shift out this time */
- pause_state=(shiftState==TAP_SD)?TAP_PD:TAP_PI;
- }
-
- // we have (num_bits+7)/8 bytes of bits to toggle out.
- // bits are pushed out LSB to MSB
- value=0;
- if (fields[i].out_value!=NULL)
- {
- for (l=0; l<k; l+=8)
- {
- value|=fields[i].out_value[(j+l)/8]<<l;
- }
- }
- /* mask away unused bits for easier debugging */
- value&=~(((u32)0xffffffff)<<k);
-
- shiftValueInner(shiftState, pause_state, k, value);
-
- if (inBuffer!=NULL)
- {
- // data in, LSB to MSB
- value=getShiftValue();
- // we're shifting in data to MSB, shift data to be aligned for returning the value
- value >>= 32-k;
-
- for (l=0; l<k; l+=8)
- {
- inBuffer[(j+l)/8]=(value>>l)&0xff;
- }
- }
- j+=k;
- }
-
- if (fields[i].in_handler!=NULL)
- {
- // invoke callback
- int r=fields[i].in_handler(inBuffer, fields[i].in_handler_priv, fields+i);
- if (r!=ERROR_OK)
- {
- /* this will cause jtag_execute_queue() to return an error */
- jtag_error=r;
- }
- }
- }
-}
-
-int interface_jtag_add_end_state(enum tap_state state)
-{
- return ERROR_OK;
-}
-
-
-int interface_jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{
-
- int i, j;
- int scan_size = 0;
- jtag_device_t *device;
-
- for (i=0; i < jtag_num_devices; i++)
- {
- int pause=i==(jtag_num_devices-1);
- int found = 0;
- device = jtag_get_device(i);
- scan_size = device->ir_length;
-
- /* search the list */
- for (j=0; j < num_fields; j++)
- {
- if (i == fields[j].device)
- {
- found = 1;
-
- if ((jtag_verify_capture_ir)&&(fields[j].in_handler==NULL))
- {
- jtag_set_check_value(fields+j, device->expected, device->expected_mask, NULL);
- } else if (jtag_verify_capture_ir)
- {
- fields[j].in_check_value = device->expected;
- fields[j].in_check_mask = device->expected_mask;
- }
-
- scanFields(1, fields+j, TAP_SI, pause);
- /* update device information */
- buf_cpy(fields[j].out_value, jtag_get_device(i)->cur_instr, scan_size);
-
- device->bypass = 0;
- break;
- }
- }
-
- if (!found)
- {
- /* if a device isn't listed, set it to BYPASS */
- u8 ones[]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
-
- scan_field_t tmp;
- memset(&tmp, 0, sizeof(tmp));
- tmp.out_value = ones;
- tmp.num_bits = scan_size;
- scanFields(1, &tmp, TAP_SI, pause);
- /* update device information */
- buf_cpy(tmp.out_value, jtag_get_device(i)->cur_instr, scan_size);
- device->bypass = 1;
- }
- }
- gotoEndState();
-
- return ERROR_OK;
-}
-
-
-
-
-
-int interface_jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{
- scanFields(num_fields, fields, TAP_SI, 1);
- gotoEndState();
-
- return ERROR_OK;
-}
-
-/*extern jtag_command_t **jtag_get_last_command_p(void);*/
-
-int interface_jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{
- int i, j;
- for (i=0; i < jtag_num_devices; i++)
- {
- int found = 0;
- int pause = (i==(jtag_num_devices-1));
-
- for (j=0; j < num_fields; j++)
- {
- if (i == fields[j].device)
- {
- found = 1;
-
- scanFields(1, fields+j, TAP_SD, pause);
- }
- }
- if (!found)
- {
-#ifdef _DEBUG_JTAG_IO_
- /* if a device isn't listed, the BYPASS register should be selected */
- if (!jtag_get_device(i)->bypass)
- {
- LOG_ERROR("BUG: no scan data for a device not in BYPASS");
- exit(-1);
- }
-#endif
-
- scan_field_t tmp;
- /* program the scan field to 1 bit length, and ignore it's value */
- tmp.num_bits = 1;
- tmp.out_value = NULL;
- tmp.out_mask = NULL;
- tmp.in_value = NULL;
- tmp.in_check_value = NULL;
- tmp.in_check_mask = NULL;
- tmp.in_handler = NULL;
- tmp.in_handler_priv = NULL;
-
- scanFields(1, &tmp, TAP_SD, pause);
- }
- else
- {
-#ifdef _DEBUG_JTAG_IO_
- /* if a device is listed, the BYPASS register must not be selected */
- if (jtag_get_device(i)->bypass)
- {
- LOG_WARNING("scan data for a device in BYPASS");
- }
-#endif
- }
- }
- gotoEndState();
- return ERROR_OK;
-}
-
-int interface_jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{
- scanFields(num_fields, fields, TAP_SD, 1);
- gotoEndState();
- return ERROR_OK;
-}
-
-
-int interface_jtag_add_tlr()
-{
- setCurrentState(TAP_TLR);
- return ERROR_OK;
-}
-
-
-
-
-extern int jtag_nsrst_delay;
-extern int jtag_ntrst_delay;
-
-int interface_jtag_add_reset(int req_trst, int req_srst)
-{
- eCosBoard_reset(req_trst, req_srst);
- return ERROR_OK;
-}
-
-int interface_jtag_add_runtest(int num_cycles, enum tap_state state)
-{
- /* num_cycles can be 0 */
- setCurrentState(TAP_RTI);
-
- /* execute num_cycles, 32 at the time. */
- int i;
- for (i=0; i<num_cycles; i+=32)
- {
- int num;
- num=32;
- if (num_cycles-i<num)
- {
- num=num_cycles-i;
- }
- shiftValueInner(TAP_RTI, TAP_RTI, num, 0);
- }
-
-#if !TEST_MANUAL()
- /* finish in end_state */
- setCurrentState(state);
-#else
- enum tap_state t=TAP_RTI;
- /* test manual drive code on any target */
- int tms;
- u8 tms_scan = TAP_MOVE(t, state);
-
- for (i = 0; i < 7; i++)
- {
- tms = (tms_scan >> i) & 1;
- waitIdle();
- ZY1000_POKE(0x08000028, tms);
- }
- waitIdle();
- ZY1000_POKE(0x08000020, state);
-#endif
-
-
- return ERROR_OK;
-}
-
-int interface_jtag_add_sleep(u32 us)
-{
- jtag_sleep(us);
- return ERROR_OK;
-}
-
-int interface_jtag_add_pathmove(int num_states, enum tap_state *path)
-{
- int state_count;
- int tms = 0;
-
- /*wait for the fifo to be empty*/
- waitIdle();
-
- state_count = 0;
-
- enum tap_state cur_state=cmd_queue_cur_state;
-
- while (num_states)
- {
- if (tap_transitions[cur_state].low == path[state_count])
- {
- tms = 0;
- }
- else if (tap_transitions[cur_state].high == path[state_count])
- {
- tms = 1;
- }
- else
- {
- LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[state_count]]);
- exit(-1);
- }
-
- waitIdle();
- ZY1000_POKE(0x08000028, tms);
-
- cur_state = path[state_count];
- state_count++;
- num_states--;
- }
-
- waitIdle();
- ZY1000_POKE(0x08000020, cur_state);
- return ERROR_OK;
-}
-
-
-
-void embeddedice_write_dcc(int chain_pos, int reg_addr, u8 *buffer, int little, int count)
-{
-// static int const reg_addr=0x5;
- enum tap_state end_state=cmd_queue_end_state;
- if (jtag_num_devices==1)
- {
- /* better performance via code duplication */
- if (little)
- {
- int i;
- for (i = 0; i < count; i++)
- {
- shiftValueInner(TAP_SD, TAP_SD, 32, fast_target_buffer_get_u32(buffer, 1));
- shiftValueInner(TAP_SD, end_state, 6, reg_addr|(1<<5));
- buffer+=4;
- }
- } else
- {
- int i;
- for (i = 0; i < count; i++)
- {
- shiftValueInner(TAP_SD, TAP_SD, 32, fast_target_buffer_get_u32(buffer, 0));
- shiftValueInner(TAP_SD, end_state, 6, reg_addr|(1<<5));
- buffer+=4;
- }
- }
- }
- else
- {
- int i;
- for (i = 0; i < count; i++)
- {
- embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little));
- buffer += 4;
- }
- }
-}
-
+/*************************************************************************** + * Copyright (C) 2007-2008 by Øyvind Harboe * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + + +#include "log.h" +#include "jtag.h" +#include "bitbang.h" +#include "../target/embeddedice.h" + + +#include <cyg/hal/hal_io.h> // low level i/o +#include <cyg/hal/var_io.h> // common registers +#include <cyg/hal/plf_io.h> // platform registers +#include <cyg/hal/hal_diag.h> + +#include <stdlib.h> + + +extern int jtag_error; + +/* low level command set + */ +int eCosBoard_read(void); +static void eCosBoard_write(int tck, int tms, int tdi); +void eCosBoard_reset(int trst, int srst); + + +int eCosBoard_speed(int speed); +int eCosBoard_register_commands(struct command_context_s *cmd_ctx); +int eCosBoard_init(void); +int eCosBoard_quit(void); + +/* interface commands */ +int eCosBoard_handle_eCosBoard_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +static int eCosBoard_khz(int khz, int *jtag_speed) +{ + if (khz==0) + { + *jtag_speed=0; + } + else + { + *jtag_speed=64000/khz; + } + return ERROR_OK; +} + +static int eCosBoard_speed_div(int speed, int *khz) +{ + if (speed==0) + { + *khz = 0; + } + else + { + *khz=64000/speed; + } + + return ERROR_OK; +} + + +jtag_interface_t eCosBoard_interface = +{ + .name = "ZY1000", + .execute_queue = bitbang_execute_queue, + .speed = eCosBoard_speed, + .register_commands = eCosBoard_register_commands, + .init = eCosBoard_init, + .quit = eCosBoard_quit, + .khz = eCosBoard_khz, + .speed_div = eCosBoard_speed_div, +}; + +bitbang_interface_t eCosBoard_bitbang = +{ + .read = eCosBoard_read, + .write = eCosBoard_write, + .reset = eCosBoard_reset +}; + + + +static void eCosBoard_write(int tck, int tms, int tdi) +{ + +} + +int eCosBoard_read(void) +{ + return -1; +} + +extern bool readSRST(); + +void eCosBoard_reset(int trst, int srst) +{ + LOG_DEBUG("zy1000 trst=%d, srst=%d", trst, srst); + if(!srst) + { + ZY1000_POKE(0x08000014, 0x00000001); + } + else + { + /* Danger!!! if clk!=0 when in + * idle in TAP_RTI, reset halt on str912 will fail. + */ + ZY1000_POKE(0x08000010, 0x00000001); + } + + if(!trst) + { + ZY1000_POKE(0x08000014, 0x00000002); + } + else + { + /* assert reset */ + ZY1000_POKE(0x08000010, 0x00000002); + } + + if (trst||(srst&&(jtag_reset_config & RESET_SRST_PULLS_TRST))) + { + waitIdle(); + /* we're now in the TLR state until trst is deasserted */ + ZY1000_POKE(0x08000020, TAP_TLR); + } else + { + /* We'll get RCLK failure when we assert TRST, so clear any false positives here */ + ZY1000_POKE(0x08000014, 0x400); + } + + /* wait for srst to float back up */ + if (!srst) + { + int i; + for (i=0; i<1000; i++) + { + // We don't want to sense our own reset, so we clear here. + // There is of course a timing hole where we could loose + // a "real" reset. + if (!readSRST()) + break; + + /* wait 1ms */ + alive_sleep(1); + } + + if (i==1000) + { + LOG_USER("SRST didn't deassert after %dms", i); + } else if (i>1) + { + LOG_USER("SRST took %dms to deassert", i); + } + } +} + +int eCosBoard_speed(int speed) +{ + if(speed == 0) + { + /*0 means RCLK*/ + speed = 0; + ZY1000_POKE(0x08000010, 0x100); + LOG_DEBUG("jtag_speed using RCLK"); + } + else + { + if(speed > 8190 || speed < 2) + { + LOG_ERROR("valid ZY1000 jtag_speed=[8190,2]. Divisor is 64MHz / even values between 8190-2, i.e. min 7814Hz, max 32MHz"); + return ERROR_INVALID_ARGUMENTS; + } + + LOG_USER("jtag_speed %d => JTAG clk=%f", speed, 64.0/(float)speed); + ZY1000_POKE(0x08000014, 0x100); + ZY1000_POKE(0x0800001c, speed&~1); + } + return ERROR_OK; +} + +int eCosBoard_register_commands(struct command_context_s *cmd_ctx) +{ + return ERROR_OK; +} + + +int eCosBoard_init(void) +{ + ZY1000_POKE(0x08000010, 0x30); // Turn on LED1 & LED2 + + /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */ + eCosBoard_reset(0, 0); + eCosBoard_speed(jtag_speed); + + bitbang_interface = &eCosBoard_bitbang; + + return ERROR_OK; +} + +int eCosBoard_quit(void) +{ + + return ERROR_OK; +} + + + +/* loads a file and returns a pointer to it in memory. The file contains + * a 0 byte(sentinel) after len bytes - the length of the file. */ +int loadFile(const char *fileName, void **data, int *len) +{ + FILE * pFile; + pFile = fopen (fileName,"rb"); + if (pFile==NULL) + { + LOG_ERROR("Can't open %s\n", fileName); + return ERROR_JTAG_DEVICE_ERROR; + } + if (fseek (pFile, 0, SEEK_END)!=0) + { + LOG_ERROR("Can't open %s\n", fileName); + fclose(pFile); + return ERROR_JTAG_DEVICE_ERROR; + } + *len=ftell (pFile); + if (*len==-1) + { + LOG_ERROR("Can't open %s\n", fileName); + fclose(pFile); + return ERROR_JTAG_DEVICE_ERROR; + } + + if (fseek (pFile, 0, SEEK_SET)!=0) + { + LOG_ERROR("Can't open %s\n", fileName); + fclose(pFile); + return ERROR_JTAG_DEVICE_ERROR; + } + *data=malloc(*len+1); + if (*data==NULL) + { + LOG_ERROR("Can't open %s\n", fileName); + fclose(pFile); + return ERROR_JTAG_DEVICE_ERROR; + } + + if (fread(*data, 1, *len, pFile)!=*len) + { + fclose(pFile); + free(*data); + LOG_ERROR("Can't open %s\n", fileName); + return ERROR_JTAG_DEVICE_ERROR; + } + fclose (pFile); + *(((char *)(*data))+*len)=0; /* sentinel */ + + return ERROR_OK; + + + +} + + + + +int interface_jtag_execute_queue(void) +{ + cyg_uint32 empty; + + waitIdle(); + ZY1000_PEEK(0x08000010, empty); + /* clear JTAG error register */ + ZY1000_POKE(0x08000014, 0x400); + + if ((empty&0x400)!=0) + { + LOG_WARNING("RCLK timeout"); + /* the error is informative only as we don't want to break the firmware if there + * is a false positive. + */ +// return ERROR_FAIL; + } + return ERROR_OK; +} + + + + + +static cyg_uint32 getShiftValue() +{ + cyg_uint32 value; + waitIdle(); + ZY1000_PEEK(0x0800000c, value); + VERBOSE(LOG_INFO("getShiftValue %08x", value)); + return value; +} +#if 0 +static cyg_uint32 getShiftValueFlip() +{ + cyg_uint32 value; + waitIdle(); + ZY1000_PEEK(0x08000018, value); + VERBOSE(LOG_INFO("getShiftValue %08x (flipped)", value)); + return value; +} +#endif + +#if 0 +static void shiftValueInnerFlip(const enum tap_state state, const enum tap_state endState, int repeat, cyg_uint32 value) +{ + VERBOSE(LOG_INFO("shiftValueInner %s %s %d %08x (flipped)", tap_state_strings[state], tap_state_strings[endState], repeat, value)); + cyg_uint32 a,b; + a=state; + b=endState; + ZY1000_POKE(0x0800000c, value); + ZY1000_POKE(0x08000008, (1<<15)|(repeat<<8)|(a<<4)|b); + VERBOSE(getShiftValueFlip()); +} +#endif + +extern int jtag_check_value(u8 *captured, void *priv); + +static void gotoEndState() +{ + setCurrentState(cmd_queue_end_state); +} + +static __inline void scanFields(int num_fields, scan_field_t *fields, enum tap_state shiftState, int pause) +{ + int i; + int j; + int k; + + for (i = 0; i < num_fields; i++) + { + cyg_uint32 value; + + static u8 *in_buff=NULL; /* pointer to buffer for scanned data */ + static int in_buff_size=0; + u8 *inBuffer=NULL; + + + // figure out where to store the input data + int num_bits=fields[i].num_bits; + if (fields[i].in_value!=NULL) + { + inBuffer=fields[i].in_value; + } else if (fields[i].in_handler!=NULL) + { + if (in_buff_size*8<num_bits) + { + // we need more space + if (in_buff!=NULL) + free(in_buff); + in_buff=NULL; + in_buff_size=(num_bits+7)/8; + in_buff=malloc(in_buff_size); + if (in_buff==NULL) + { + LOG_ERROR("Out of memory"); + jtag_error=ERROR_JTAG_QUEUE_FAILED; + return; + } + } + inBuffer=in_buff; + } + + // here we shuffle N bits out/in + j=0; + while (j<num_bits) + { + enum tap_state pause_state; + int l; + k=num_bits-j; + pause_state=(shiftState==TAP_SD)?TAP_SD:TAP_SI; + if (k>32) + { + k=32; + /* we have more to shift out */ + } else if (pause&&(i == num_fields-1)) + { + /* this was the last to shift out this time */ + pause_state=(shiftState==TAP_SD)?TAP_PD:TAP_PI; + } + + // we have (num_bits+7)/8 bytes of bits to toggle out. + // bits are pushed out LSB to MSB + value=0; + if (fields[i].out_value!=NULL) + { + for (l=0; l<k; l+=8) + { + value|=fields[i].out_value[(j+l)/8]<<l; + } + } + /* mask away unused bits for easier debugging */ + value&=~(((u32)0xffffffff)<<k); + + shiftValueInner(shiftState, pause_state, k, value); + + if (inBuffer!=NULL) + { + // data in, LSB to MSB + value=getShiftValue(); + // we're shifting in data to MSB, shift data to be aligned for returning the value + value >>= 32-k; + + for (l=0; l<k; l+=8) + { + inBuffer[(j+l)/8]=(value>>l)&0xff; + } + } + j+=k; + } + + if (fields[i].in_handler!=NULL) + { + // invoke callback + int r=fields[i].in_handler(inBuffer, fields[i].in_handler_priv, fields+i); + if (r!=ERROR_OK) + { + /* this will cause jtag_execute_queue() to return an error */ + jtag_error=r; + } + } + } +} + +int interface_jtag_add_end_state(enum tap_state state) +{ + return ERROR_OK; +} + + +int interface_jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) +{ + + int i, j; + int scan_size = 0; + jtag_device_t *device; + + for (i=0; i < jtag_num_devices; i++) + { + int pause=i==(jtag_num_devices-1); + int found = 0; + device = jtag_get_device(i); + scan_size = device->ir_length; + + /* search the list */ + for (j=0; j < num_fields; j++) + { + if (i == fields[j].device) + { + found = 1; + + if ((jtag_verify_capture_ir)&&(fields[j].in_handler==NULL)) + { + jtag_set_check_value(fields+j, device->expected, device->expected_mask, NULL); + } else if (jtag_verify_capture_ir) + { + fields[j].in_check_value = device->expected; + fields[j].in_check_mask = device->expected_mask; + } + + scanFields(1, fields+j, TAP_SI, pause); + /* update device information */ + buf_cpy(fields[j].out_value, jtag_get_device(i)->cur_instr, scan_size); + + device->bypass = 0; + break; + } + } + + if (!found) + { + /* if a device isn't listed, set it to BYPASS */ + u8 ones[]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}; + + scan_field_t tmp; + memset(&tmp, 0, sizeof(tmp)); + tmp.out_value = ones; + tmp.num_bits = scan_size; + scanFields(1, &tmp, TAP_SI, pause); + /* update device information */ + buf_cpy(tmp.out_value, jtag_get_device(i)->cur_instr, scan_size); + device->bypass = 1; + } + } + gotoEndState(); + + return ERROR_OK; +} + + + + + +int interface_jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) +{ + scanFields(num_fields, fields, TAP_SI, 1); + gotoEndState(); + + return ERROR_OK; +} + +/*extern jtag_command_t **jtag_get_last_command_p(void);*/ + +int interface_jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) +{ + int i, j; + for (i=0; i < jtag_num_devices; i++) + { + int found = 0; + int pause = (i==(jtag_num_devices-1)); + + for (j=0; j < num_fields; j++) + { + if (i == fields[j].device) + { + found = 1; + + scanFields(1, fields+j, TAP_SD, pause); + } + } + if (!found) + { +#ifdef _DEBUG_JTAG_IO_ + /* if a device isn't listed, the BYPASS register should be selected */ + if (!jtag_get_device(i)->bypass) + { + LOG_ERROR("BUG: no scan data for a device not in BYPASS"); + exit(-1); + } +#endif + + scan_field_t tmp; + /* program the scan field to 1 bit length, and ignore it's value */ + tmp.num_bits = 1; + tmp.out_value = NULL; + tmp.out_mask = NULL; + tmp.in_value = NULL; + tmp.in_check_value = NULL; + tmp.in_check_mask = NULL; + tmp.in_handler = NULL; + tmp.in_handler_priv = NULL; + + scanFields(1, &tmp, TAP_SD, pause); + } + else + { +#ifdef _DEBUG_JTAG_IO_ + /* if a device is listed, the BYPASS register must not be selected */ + if (jtag_get_device(i)->bypass) + { + LOG_WARNING("scan data for a device in BYPASS"); + } +#endif + } + } + gotoEndState(); + return ERROR_OK; +} + +int interface_jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) +{ + scanFields(num_fields, fields, TAP_SD, 1); + gotoEndState(); + return ERROR_OK; +} + + +int interface_jtag_add_tlr() +{ + setCurrentState(TAP_TLR); + return ERROR_OK; +} + + + + +extern int jtag_nsrst_delay; +extern int jtag_ntrst_delay; + +int interface_jtag_add_reset(int req_trst, int req_srst) +{ + eCosBoard_reset(req_trst, req_srst); + return ERROR_OK; +} + +int interface_jtag_add_runtest(int num_cycles, enum tap_state state) +{ + /* num_cycles can be 0 */ + setCurrentState(TAP_RTI); + + /* execute num_cycles, 32 at the time. */ + int i; + for (i=0; i<num_cycles; i+=32) + { + int num; + num=32; + if (num_cycles-i<num) + { + num=num_cycles-i; + } + shiftValueInner(TAP_RTI, TAP_RTI, num, 0); + } + +#if !TEST_MANUAL() + /* finish in end_state */ + setCurrentState(state); +#else + enum tap_state t=TAP_RTI; + /* test manual drive code on any target */ + int tms; + u8 tms_scan = TAP_MOVE(t, state); + + for (i = 0; i < 7; i++) + { + tms = (tms_scan >> i) & 1; + waitIdle(); + ZY1000_POKE(0x08000028, tms); + } + waitIdle(); + ZY1000_POKE(0x08000020, state); +#endif + + + return ERROR_OK; +} + +int interface_jtag_add_sleep(u32 us) +{ + jtag_sleep(us); + return ERROR_OK; +} + +int interface_jtag_add_pathmove(int num_states, enum tap_state *path) +{ + int state_count; + int tms = 0; + + /*wait for the fifo to be empty*/ + waitIdle(); + + state_count = 0; + + enum tap_state cur_state=cmd_queue_cur_state; + + while (num_states) + { + if (tap_transitions[cur_state].low == path[state_count]) + { + tms = 0; + } + else if (tap_transitions[cur_state].high == path[state_count]) + { + tms = 1; + } + else + { + LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[state_count]]); + exit(-1); + } + + waitIdle(); + ZY1000_POKE(0x08000028, tms); + + cur_state = path[state_count]; + state_count++; + num_states--; + } + + waitIdle(); + ZY1000_POKE(0x08000020, cur_state); + return ERROR_OK; +} + + + +void embeddedice_write_dcc(int chain_pos, int reg_addr, u8 *buffer, int little, int count) +{ +// static int const reg_addr=0x5; + enum tap_state end_state=cmd_queue_end_state; + if (jtag_num_devices==1) + { + /* better performance via code duplication */ + if (little) + { + int i; + for (i = 0; i < count; i++) + { + shiftValueInner(TAP_SD, TAP_SD, 32, fast_target_buffer_get_u32(buffer, 1)); + shiftValueInner(TAP_SD, end_state, 6, reg_addr|(1<<5)); + buffer+=4; + } + } else + { + int i; + for (i = 0; i < count; i++) + { + shiftValueInner(TAP_SD, TAP_SD, 32, fast_target_buffer_get_u32(buffer, 0)); + shiftValueInner(TAP_SD, end_state, 6, reg_addr|(1<<5)); + buffer+=4; + } + } + } + else + { + int i; + for (i = 0; i < count; i++) + { + embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little)); + buffer += 4; + } + } +} + |