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mips: fix swapping if running on big endian host

tags/v0.5.0-rc1
Stefan Mahr 11 years ago
committed by Øyvind Harboe
parent
commit
875298bc53
1 changed files with 19 additions and 3 deletions
  1. +19
    -3
      src/target/mips_ejtag.c

+ 19
- 3
src/target/mips_ejtag.c View File

@@ -52,12 +52,13 @@ void mips_ejtag_set_instr(struct mips_ejtag *ejtag_info, int new_instr)
int mips_ejtag_get_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode)
{
struct scan_field field;
uint8_t r[4];

mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IDCODE);

field.num_bits = 32;
field.out_value = NULL;
field.in_value = (void*)idcode;
field.in_value = r;

jtag_add_dr_scan(ejtag_info->tap, 1, &field, TAP_IDLE);

@@ -67,18 +68,22 @@ int mips_ejtag_get_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode)
LOG_ERROR("register read failed");
return retval;
}

*idcode = buf_get_u32(field.in_value, 0, 32);

return ERROR_OK;
}

static int mips_ejtag_get_impcode(struct mips_ejtag *ejtag_info, uint32_t *impcode)
{
struct scan_field field;
uint8_t r[4];

mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IMPCODE);

field.num_bits = 32;
field.out_value = NULL;
field.in_value = (void*)impcode;
field.in_value = r;

jtag_add_dr_scan(ejtag_info->tap, 1, &field, TAP_IDLE);

@@ -88,6 +93,9 @@ static int mips_ejtag_get_impcode(struct mips_ejtag *ejtag_info, uint32_t *impco
LOG_ERROR("register read failed");
return retval;
}

*impcode = buf_get_u32(field.in_value, 0, 32);

return ERROR_OK;
}

@@ -334,6 +342,8 @@ int mips_ejtag_init(struct mips_ejtag *ejtag_info)
int mips_ejtag_fastdata_scan(struct mips_ejtag *ejtag_info, int write_t, uint32_t *data)
{
struct jtag_tap *tap;
uint8_t r[4];

tap = ejtag_info->tap;
assert(tap != NULL);

@@ -357,10 +367,16 @@ int mips_ejtag_fastdata_scan(struct mips_ejtag *ejtag_info, int write_t, uint32_
}
else
{
fields[1].in_value = (uint8_t *) data;
fields[1].in_value = r;
}

jtag_add_dr_scan(tap, 2, fields, TAP_IDLE);

if (!write_t)
{
*data = buf_get_u32(fields[1].in_value, 0, 32);
}

keep_alive();

return ERROR_OK;


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