#include "config.h"
#endif
+#include <helper/time_support.h>
+
#include "mips32.h"
#include "mips32_pracc.h"
struct mips_ejtag *ejtag_info;
};
+static int mips32_pracc_read_mem8(struct mips_ejtag *ejtag_info,
+ uint32_t addr, int count, uint8_t *buf);
+static int mips32_pracc_read_mem16(struct mips_ejtag *ejtag_info,
+ uint32_t addr, int count, uint16_t *buf);
+static int mips32_pracc_read_mem32(struct mips_ejtag *ejtag_info,
+ uint32_t addr, int count, uint32_t *buf);
+static int mips32_pracc_read_u32(struct mips_ejtag *ejtag_info,
+ uint32_t addr, uint32_t *buf);
+
+static int mips32_pracc_write_mem8(struct mips_ejtag *ejtag_info,
+ uint32_t addr, int count, uint8_t *buf);
+static int mips32_pracc_write_mem16(struct mips_ejtag *ejtag_info,
+ uint32_t addr, int count, uint16_t *buf);
+static int mips32_pracc_write_mem32(struct mips_ejtag *ejtag_info,
+ uint32_t addr, int count, uint32_t *buf);
+static int mips32_pracc_write_u32(struct mips_ejtag *ejtag_info,
+ uint32_t addr, uint32_t *buf);
+
static int wait_for_pracc_rw(struct mips_ejtag *ejtag_info, uint32_t *ctrl)
{
uint32_t ejtag_ctrl;
+ long long then = timeval_ms();
+ int timeout;
+
+ /* wait for the PrAcc to become "1" */
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
+ ejtag_ctrl = ejtag_info->ejtag_ctrl;
+
+ int retval;
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ LOG_ERROR("fastdata load failed");
+ return retval;
+ }
while (1)
{
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
- ejtag_ctrl = ejtag_info->ejtag_ctrl;
- mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
+ retval = mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
+ if (retval != ERROR_OK)
+ return retval;
+
if (ejtag_ctrl & EJTAG_CTRL_PRACC)
break;
- LOG_DEBUG("DEBUGMODULE: No memory access in progress!\n");
- return ERROR_JTAG_DEVICE_ERROR;
+
+ if ( (timeout = timeval_ms()-then) > 1000 )
+ {
+ LOG_DEBUG("DEBUGMODULE: No memory access in progress!");
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
}
*ctrl = ejtag_ctrl;
}
/* Send the data out */
- mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA, NULL);
+ mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA);
mips_ejtag_drscan_32(ctx->ejtag_info, &data);
/* Clear the access pending bit (let the processor eat!) */
ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
- mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL, NULL);
+ mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL);
mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
- jtag_add_clocks(5);
- jtag_execute_queue();
-
- return ERROR_OK;
+ return jtag_execute_queue();
}
static int mips32_pracc_exec_write(struct mips32_pracc_context *ctx, uint32_t address)
uint32_t ejtag_ctrl,data;
int offset;
struct mips_ejtag *ejtag_info = ctx->ejtag_info;
+ int retval;
- mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA, NULL);
- mips_ejtag_drscan_32(ctx->ejtag_info, &data);
+ mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA);
+ retval = mips_ejtag_drscan_32(ctx->ejtag_info, &data);
+ if (retval != ERROR_OK)
+ return retval;
/* Clear access pending bit */
ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
- mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL, NULL);
+ mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL);
mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
- jtag_add_clocks(5);
- jtag_execute_queue();
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
if ((address >= MIPS32_PRACC_PARAM_IN)
&& (address <= MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4))
return retval;
address = data = 0;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
- mips_ejtag_drscan_32(ejtag_info, &address);
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
+ retval = mips_ejtag_drscan_32(ejtag_info, &address);
+ if (retval != ERROR_OK)
+ return retval;
/* Check for read or write */
if (ejtag_ctrl & EJTAG_CTRL_PRNW)
return ERROR_OK;
}
-int mips32_pracc_read_mem32(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint32_t *buf)
+static int mips32_pracc_read_mem32(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint32_t *buf)
{
static const uint32_t code[] = {
/* start: */
return retval;
}
-int mips32_pracc_read_u32(struct mips_ejtag *ejtag_info, uint32_t addr, uint32_t *buf)
+static int mips32_pracc_read_u32(struct mips_ejtag *ejtag_info, uint32_t addr, uint32_t *buf)
{
static const uint32_t code[] = {
/* start: */
return retval;
}
-int mips32_pracc_read_mem16(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint16_t *buf)
+static int mips32_pracc_read_mem16(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint16_t *buf)
{
static const uint32_t code[] = {
/* start: */
uint32_t *param_out = malloc(count * sizeof(uint32_t));
int i;
-// int retval;
+ int retval = ERROR_OK;
int blocksize;
int bytesread;
uint32_t param_in[2];
param_in[0] = addr;
param_in[1] = blocksize;
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
ARRAY_SIZE(param_in), param_in, count, param_out, 1);
// count -= blocksize;
free(param_out);
- return ERROR_OK;
+ return retval;
}
-int mips32_pracc_read_mem8(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint8_t *buf)
+static int mips32_pracc_read_mem8(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint8_t *buf)
{
static const uint32_t code[] = {
/* start: */
uint32_t *param_out = malloc(count * sizeof(uint32_t));
int i;
-// int retval;
+ int retval = ERROR_OK;
int blocksize;
int bytesread;
uint32_t param_in[2];
param_in[0] = addr;
param_in[1] = blocksize;
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
ARRAY_SIZE(param_in), param_in, count, param_out, 1);
// count -= blocksize;
free(param_out);
- return ERROR_OK;
+ return retval;
}
int mips32_pracc_write_mem(struct mips_ejtag *ejtag_info, uint32_t addr, int size, int count, void *buf)
return ERROR_OK;
}
-int mips32_pracc_write_mem32(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint32_t *buf)
+static int mips32_pracc_write_mem32(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint32_t *buf)
{
static const uint32_t code[] = {
/* start: */
memcpy(¶m_in[2], buf, count * sizeof(uint32_t));
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ int retval;
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
count + 2, param_in, 0, NULL, 1);
free(param_in);
- return ERROR_OK;
+ return retval;
}
-int mips32_pracc_write_u32(struct mips_ejtag *ejtag_info, uint32_t addr, uint32_t *buf)
+static int mips32_pracc_write_u32(struct mips_ejtag *ejtag_info, uint32_t addr, uint32_t *buf)
{
static const uint32_t code[] = {
/* start: */
param_in[0] = addr;
param_in[1] = *buf;
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
ARRAY_SIZE(param_in), param_in, 0, NULL, 1);
-
- return ERROR_OK;
}
-int mips32_pracc_write_mem16(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint16_t *buf)
+static int mips32_pracc_write_mem16(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint16_t *buf)
{
static const uint32_t code[] = {
/* start: */
param_in[i + 2] = buf[i];
}
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ int retval;
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
count + 2, param_in, 0, NULL, 1);
free(param_in);
- return ERROR_OK;
+ return retval;
}
-int mips32_pracc_write_mem8(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint8_t *buf)
+static int mips32_pracc_write_mem8(struct mips_ejtag *ejtag_info, uint32_t addr, int count, uint8_t *buf)
{
static const uint32_t code[] = {
/* start: */
param_in[i + 2] = buf[i];
}
- retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
count + 2, param_in, 0, NULL, 1);
free(param_in);
int retval;
- retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
MIPS32NUMCOREREGS, regs, 0, NULL, 1);
return retval;
int retval;
- retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ retval = mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
0, NULL, MIPS32NUMCOREREGS, regs, 1);
return retval;
* 3. data ...
*/
int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_area *source,
- int write, uint32_t addr, int count, uint32_t *buf)
+ int write_t, uint32_t addr, int count, uint32_t *buf)
{
uint32_t handler_code[] = {
/* caution when editing, table is modified below */
if (source->size < MIPS32_FASTDATA_HANDLER_SIZE)
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- if (write)
+ if (write_t)
{
handler_code[8] = MIPS32_LW(11,0,8); /* load data from probe at fastdata area */
handler_code[9] = MIPS32_SW(11,0,9); /* store data to RAM @ r9 */
}
/* write program into RAM */
- mips32_pracc_write_mem32(ejtag_info, source->address, ARRAY_SIZE(handler_code), handler_code);
+ if (write_t != ejtag_info->fast_access_save)
+ {
+ mips32_pracc_write_mem32(ejtag_info, source->address, ARRAY_SIZE(handler_code), handler_code);
+ /* save previous operation to speed to any consecutive read/writes */
+ ejtag_info->fast_access_save = write_t;
+ }
- LOG_DEBUG("%s using 0x%.8" PRIx32 " for write handler\n", __func__, source->address);
+ LOG_DEBUG("%s using 0x%.8" PRIx32 " for write handler", __func__, source->address);
jmp_code[1] |= UPPER16(source->address);
jmp_code[2] |= LOWER16(source->address);
if ((retval = wait_for_pracc_rw(ejtag_info, &ejtag_ctrl)) != ERROR_OK)
return retval;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
mips_ejtag_drscan_32(ejtag_info, &jmp_code[i]);
/* Clear the access pending bit (let the processor eat!) */
ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
}
/* next fetch to dmseg should be in FASTDATA_AREA, check */
address = 0;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
- mips_ejtag_drscan_32(ejtag_info, &address);
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
+ retval = mips_ejtag_drscan_32(ejtag_info, &address);
+ if (retval != ERROR_OK)
+ return retval;
if (address != MIPS32_PRACC_FASTDATA_AREA)
return ERROR_FAIL;
+ /* wait PrAcc pending bit for FASTDATA write */
+ if ((retval = wait_for_pracc_rw(ejtag_info, &ejtag_ctrl)) != ERROR_OK)
+ return retval;
+
/* Send the load start address */
val = addr;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA, NULL);
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA);
mips_ejtag_fastdata_scan(ejtag_info, 1, &val);
/* Send the load end address */
val = addr + (count - 1) * 4;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA, NULL);
mips_ejtag_fastdata_scan(ejtag_info, 1, &val);
for (i = 0; i < count; i++)
{
- /* Send the data out using fastdata (clears the access pending bit) */
- if ((retval = mips_ejtag_fastdata_scan(ejtag_info, write, buf++)) != ERROR_OK)
+ if ((retval = mips_ejtag_fastdata_scan(ejtag_info, write_t, buf++)) != ERROR_OK)
return retval;
}
return retval;
address = 0;
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
- mips_ejtag_drscan_32(ejtag_info, &address);
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
+ retval = mips_ejtag_drscan_32(ejtag_info, &address);
+ if (retval != ERROR_OK)
+ return retval;
if (address != MIPS32_PRACC_TEXT)
- LOG_ERROR("mini program did not return to start\n");
+ LOG_ERROR("mini program did not return to start");
return retval;
}
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