int mips32_pracc_clean_text_jump(struct mips_ejtag *ejtag_info)
{
- uint32_t jt_code = MIPS32_J((0x0FFFFFFF & MIPS32_PRACC_TEXT) >> 2);
-
+ uint32_t jt_code = MIPS32_J(ejtag_info->isa, MIPS32_PRACC_TEXT);
+ pracc_swap16_array(ejtag_info, &jt_code, 1);
/* do 3 0/nops to clean pipeline before a jump to pracc text, NOP in delay slot */
for (int i = 0; i != 5; i++) {
/* Wait for pracc */
if (retval != ERROR_OK)
return retval;
- if (ejtag_info->pa_addr != MIPS32_PRACC_TEXT) { /* LEXRA/BMIPS ?, shift out another NOP, max 2 */
+ if (ejtag_info->pa_addr != MIPS32_PRACC_TEXT) { /* LEXRA/BMIPS ?, shift out another NOP, max 2 */
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
mips_ejtag_drscan_32_out(ejtag_info, MIPS32_NOP);
mips32_pracc_finish(ejtag_info);
uint32_t *param_out, bool check_last)
{
int code_count = 0;
- int store_pending = 0; /* increases with every store instruction at dmseg, decreases with every store pa */
+ int store_pending = 0; /* increases with every store instr at dmseg, decreases with every store pa */
uint32_t max_store_addr = 0; /* for store pa address testing */
bool restart = 0; /* restarting control */
int restart_count = 0;
LOG_DEBUG("restarting code");
}
- retval = mips32_pracc_read_ctrl_addr(ejtag_info); /* update current pa info: control and address */
+ retval = mips32_pracc_read_ctrl_addr(ejtag_info); /* update current pa info: control and address */
if (retval != ERROR_OK)
return retval;
/* Check for read or write access */
- if (ejtag_info->pa_ctrl & EJTAG_CTRL_PRNW) { /* write/store access */
+ if (ejtag_info->pa_ctrl & EJTAG_CTRL_PRNW) { /* write/store access */
/* Check for pending store from a previous store instruction at dmseg */
if (store_pending == 0) {
LOG_DEBUG("unexpected write at address %" PRIx32, ejtag_info->pa_addr);
return ERROR_JTAG_DEVICE_ERROR;
} else {
/* check address */
- if (ejtag_info->pa_addr < MIPS32_PRACC_PARAM_OUT || ejtag_info->pa_addr > max_store_addr) {
-
+ if (ejtag_info->pa_addr < MIPS32_PRACC_PARAM_OUT ||
+ ejtag_info->pa_addr > max_store_addr) {
LOG_DEBUG("writing at unexpected address %" PRIx32, ejtag_info->pa_addr);
return ERROR_JTAG_DEVICE_ERROR;
}
ejtag_info->pa_addr, MIPS32_PRACC_TEXT + code_count * 4);
/* restart code execution only in some cases */
- if (code_count == 1 && ejtag_info->pa_addr == MIPS32_PRACC_TEXT && restart_count == 0) {
+ if (code_count == 1 && ejtag_info->pa_addr == MIPS32_PRACC_TEXT &&
+ restart_count == 0) {
LOG_DEBUG("restarting, without clean jump");
restart_count++;
code_count = 0;
}
} else {
if (ejtag_info->pa_addr != (MIPS32_PRACC_TEXT + code_count * 4)) {
- LOG_DEBUG("unexpected read address in final check: %" PRIx32 ", expected: %x",
- ejtag_info->pa_addr, MIPS32_PRACC_TEXT + code_count * 4);
+ LOG_DEBUG("unexpected read address in final check: %"
+ PRIx32 ", expected: %x", ejtag_info->pa_addr,
+ MIPS32_PRACC_TEXT + code_count * 4);
return ERROR_JTAG_DEVICE_ERROR;
}
}
if (!pass) {
- if ((code_count - ctx->code_count) > 1) { /* allow max 2 instruction delay slot */
+ if ((code_count - ctx->code_count) > 1) { /* allow max 2 instr delay slot */
LOG_DEBUG("failed to jump back to pracc text");
return ERROR_JTAG_DEVICE_ERROR;
}
ctx->store_count = 0;
ctx->max_code = 0;
ctx->pracc_list = NULL;
+ ctx->isa = ctx->ejtag_info->isa ? 1 : 0;
}
void pracc_add(struct pracc_queue_info *ctx, uint32_t addr, uint32_t instr)
void pracc_add_li32(struct pracc_queue_info *ctx, uint32_t reg_num, uint32_t data, bool optimize)
{
if (LOWER16(data) == 0 && optimize)
- pracc_add(ctx, 0, MIPS32_LUI(reg_num, UPPER16(data))); /* load only upper value */
+ pracc_add(ctx, 0, MIPS32_LUI(ctx->isa, reg_num, UPPER16(data))); /* load only upper value */
else if (UPPER16(data) == 0 && optimize)
- pracc_add(ctx, 0, MIPS32_ORI(reg_num, 0, LOWER16(data))); /* load only lower */
+ pracc_add(ctx, 0, MIPS32_ORI(ctx->isa, reg_num, 0, LOWER16(data))); /* load only lower */
else {
- pracc_add(ctx, 0, MIPS32_LUI(reg_num, UPPER16(data))); /* load upper and lower */
- pracc_add(ctx, 0, MIPS32_ORI(reg_num, reg_num, LOWER16(data)));
+ pracc_add(ctx, 0, MIPS32_LUI(ctx->isa, reg_num, UPPER16(data))); /* load upper and lower */
+ pracc_add(ctx, 0, MIPS32_ORI(ctx->isa, reg_num, reg_num, LOWER16(data)));
}
}
return ERROR_FAIL;
}
+ if (ejtag_info->isa && ejtag_info->endianness)
+ for (int i = 0; i != ctx->code_count; i++)
+ ctx->pracc_list[i].instr = SWAP16(ctx->pracc_list[i].instr);
+
if (ejtag_info->mode == 0)
return mips32_pracc_exec(ejtag_info, ctx, buf, check_last);
int mips32_pracc_read_u32(struct mips_ejtag *ejtag_info, uint32_t addr, uint32_t *buf)
{
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
- pracc_add(&ctx, 0, MIPS32_LUI(15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
- pracc_add(&ctx, 0, MIPS32_LUI(8, UPPER16((addr + 0x8000)))); /* load $8 with modified upper address */
- pracc_add(&ctx, 0, MIPS32_LW(8, LOWER16(addr), 8)); /* lw $8, LOWER16(addr)($8) */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 8, UPPER16((addr + 0x8000)))); /* load $8 with modified upper addr */
+ pracc_add(&ctx, 0, MIPS32_LW(ctx.isa, 8, LOWER16(addr), 8)); /* lw $8, LOWER16(addr)($8) */
pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT,
- MIPS32_SW(8, PRACC_OUT_OFFSET, 15)); /* sw $8,PRACC_OUT_OFFSET($15) */
+ MIPS32_SW(ctx.isa, 8, PRACC_OUT_OFFSET, 15)); /* sw $8,PRACC_OUT_OFFSET($15) */
pracc_add_li32(&ctx, 8, ejtag_info->reg8, 0); /* restore $8 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* move COP0 DeSave to $15 */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* move COP0 DeSave to $15 */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, buf, 1);
pracc_queue_free(&ctx);
if (count == 1 && size == 4)
return mips32_pracc_read_u32(ejtag_info, addr, (uint32_t *)buf);
- uint32_t *data = NULL;
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
+ uint32_t *data = NULL;
if (size != 4) {
data = malloc(256 * sizeof(uint32_t));
if (data == NULL) {
while (count) {
ctx.code_count = 0;
ctx.store_count = 0;
+
int this_round_count = (count > 256) ? 256 : count;
uint32_t last_upper_base_addr = UPPER16((addr + 0x8000));
- pracc_add(&ctx, 0, MIPS32_LUI(15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
- pracc_add(&ctx, 0, MIPS32_LUI(9, last_upper_base_addr)); /* load the upper memory address in $9 */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 9, last_upper_base_addr)); /* upper memory addr to $9 */
for (int i = 0; i != this_round_count; i++) { /* Main code loop */
uint32_t upper_base_addr = UPPER16((addr + 0x8000));
- if (last_upper_base_addr != upper_base_addr) { /* if needed, change upper address in $9 */
- pracc_add(&ctx, 0, MIPS32_LUI(9, upper_base_addr));
+ if (last_upper_base_addr != upper_base_addr) { /* if needed, change upper addr in $9 */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 9, upper_base_addr));
last_upper_base_addr = upper_base_addr;
}
- if (size == 4)
- pracc_add(&ctx, 0, MIPS32_LW(8, LOWER16(addr), 9)); /* load from memory to $8 */
+ if (size == 4) /* load from memory to $8 */
+ pracc_add(&ctx, 0, MIPS32_LW(ctx.isa, 8, LOWER16(addr), 9));
else if (size == 2)
- pracc_add(&ctx, 0, MIPS32_LHU(8, LOWER16(addr), 9));
+ pracc_add(&ctx, 0, MIPS32_LHU(ctx.isa, 8, LOWER16(addr), 9));
else
- pracc_add(&ctx, 0, MIPS32_LBU(8, LOWER16(addr), 9));
+ pracc_add(&ctx, 0, MIPS32_LBU(ctx.isa, 8, LOWER16(addr), 9));
- pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT + i * 4,
- MIPS32_SW(8, PRACC_OUT_OFFSET + i * 4, 15)); /* store $8 at param out */
+ pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT + i * 4, /* store $8 at param out */
+ MIPS32_SW(ctx.isa, 8, PRACC_OUT_OFFSET + i * 4, 15));
addr += size;
}
pracc_add_li32(&ctx, 8, ejtag_info->reg8, 0); /* restore $8 */
pracc_add_li32(&ctx, 9, ejtag_info->reg9, 0); /* restore $9 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* restore $15 from DeSave */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* restore $15 from DeSave */
if (size == 4) {
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, buf32, 1);
int mips32_cp0_read(struct mips_ejtag *ejtag_info, uint32_t *val, uint32_t cp0_reg, uint32_t cp0_sel)
{
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
- pracc_add(&ctx, 0, MIPS32_LUI(15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
- pracc_add(&ctx, 0, MIPS32_MFC0(8, cp0_reg, cp0_sel)); /* move cp0 reg / sel to $8 */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 8, cp0_reg, cp0_sel)); /* move cp0 reg / sel to $8 */
pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT,
- MIPS32_SW(8, PRACC_OUT_OFFSET, 15)); /* store $8 to pracc_out */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* restore $15 from DeSave */
- pracc_add(&ctx, 0, MIPS32_LUI(8, UPPER16(ejtag_info->reg8))); /* restore upper 16 bits of $8 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_ORI(8, 8, LOWER16(ejtag_info->reg8))); /* restore lower 16 bits of $8 */
+ MIPS32_SW(ctx.isa, 8, PRACC_OUT_OFFSET, 15)); /* store $8 to pracc_out */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* restore $15 from DeSave */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 8, UPPER16(ejtag_info->reg8))); /* restore upper 16 bits of $8 */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_ORI(ctx.isa, 8, 8, LOWER16(ejtag_info->reg8))); /* restore lower 16 bits of $8 */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, val, 1);
pracc_queue_free(&ctx);
int mips32_cp0_write(struct mips_ejtag *ejtag_info, uint32_t val, uint32_t cp0_reg, uint32_t cp0_sel)
{
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
pracc_add_li32(&ctx, 15, val, 0); /* Load val to $15 */
- pracc_add(&ctx, 0, MIPS32_MTC0(15, cp0_reg, cp0_sel)); /* write $15 to cp0 reg / sel */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* restore $15 from DeSave */
+ pracc_add(&ctx, 0, MIPS32_MTC0(ctx.isa, 15, cp0_reg, cp0_sel)); /* write $15 to cp0 reg / sel */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* restore $15 from DeSave */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, NULL, 1);
pracc_queue_free(&ctx);
static int mips32_pracc_synchronize_cache(struct mips_ejtag *ejtag_info,
uint32_t start_addr, uint32_t end_addr, int cached, int rel)
{
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
/** Find cache line size in bytes */
uint32_t clsiz;
if (rel) { /* Release 2 (rel = 1) */
- pracc_add(&ctx, 0, MIPS32_LUI(15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, PRACC_UPPER_BASE_ADDR)); /* $15 = MIPS32_PRACC_BASE_ADDR */
- pracc_add(&ctx, 0, MIPS32_RDHWR(8, MIPS32_SYNCI_STEP)); /* load synci_step value to $8 */
+ pracc_add(&ctx, 0, MIPS32_RDHWR(ctx.isa, 8, MIPS32_SYNCI_STEP)); /* load synci_step value to $8 */
pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT,
- MIPS32_SW(8, PRACC_OUT_OFFSET, 15)); /* store $8 to pracc_out */
+ MIPS32_SW(ctx.isa, 8, PRACC_OUT_OFFSET, 15)); /* store $8 to pracc_out */
pracc_add_li32(&ctx, 8, ejtag_info->reg8, 0); /* restore $8 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* restore $15 from DeSave */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* restore $15 from DeSave */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, &clsiz, 1);
if (ctx.retval != ERROR_OK)
end_addr |= clsiz - 1;
ctx.code_count = 0;
+ ctx.store_count = 0;
+
int count = 0;
uint32_t last_upper_base_addr = UPPER16((start_addr + 0x8000));
- pracc_add(&ctx, 0, MIPS32_LUI(15, last_upper_base_addr)); /* load upper memory base address to $15 */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, last_upper_base_addr)); /* load upper memory base addr to $15 */
while (start_addr <= end_addr) { /* main loop */
uint32_t upper_base_addr = UPPER16((start_addr + 0x8000));
- if (last_upper_base_addr != upper_base_addr) { /* if needed, change upper address in $15 */
- pracc_add(&ctx, 0, MIPS32_LUI(15, upper_base_addr));
+ if (last_upper_base_addr != upper_base_addr) { /* if needed, change upper addr in $15 */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, upper_base_addr));
last_upper_base_addr = upper_base_addr;
}
- if (rel)
- pracc_add(&ctx, 0, MIPS32_SYNCI(LOWER16(start_addr), 15)); /* synci instruction, offset($15) */
+ if (rel) /* synci instruction, offset($15) */
+ pracc_add(&ctx, 0, MIPS32_SYNCI(ctx.isa, LOWER16(start_addr), 15));
else {
- if (cached == 3)
- pracc_add(&ctx, 0, MIPS32_CACHE(MIPS32_CACHE_D_HIT_WRITEBACK,
- LOWER16(start_addr), 15)); /* cache Hit_Writeback_D, offset($15) */
-
- pracc_add(&ctx, 0, MIPS32_CACHE(MIPS32_CACHE_I_HIT_INVALIDATE,
- LOWER16(start_addr), 15)); /* cache Hit_Invalidate_I, offset($15) */
+ if (cached == 3) /* cache Hit_Writeback_D, offset($15) */
+ pracc_add(&ctx, 0, MIPS32_CACHE(ctx.isa, MIPS32_CACHE_D_HIT_WRITEBACK,
+ LOWER16(start_addr), 15));
+ /* cache Hit_Invalidate_I, offset($15) */
+ pracc_add(&ctx, 0, MIPS32_CACHE(ctx.isa, MIPS32_CACHE_I_HIT_INVALIDATE,
+ LOWER16(start_addr), 15));
}
start_addr += clsiz;
count++;
- if (count == 256 && start_addr <= end_addr) { /* more ?, then execute code list */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_NOP); /* nop in delay slot */
+ if (count == 256 && start_addr <= end_addr) { /* more ?, then execute code list */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* to start */
+ pracc_add(&ctx, 0, MIPS32_NOP); /* nop in delay slot */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, NULL, 1);
if (ctx.retval != ERROR_OK)
goto exit;
- ctx.code_count = 0;
+ ctx.code_count = 0; /* reset counters for another loop */
+ ctx.store_count = 0;
count = 0;
}
}
- pracc_add(&ctx, 0, MIPS32_SYNC);
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* restore $15 from DeSave*/
+ pracc_add(&ctx, 0, MIPS32_SYNC(ctx.isa));
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* restore $15 from DeSave*/
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, NULL, 1);
exit:
static int mips32_pracc_write_mem_generic(struct mips_ejtag *ejtag_info,
uint32_t addr, int size, int count, const void *buf)
{
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
const uint32_t *buf32 = buf;
while (count) {
ctx.code_count = 0;
ctx.store_count = 0;
+
int this_round_count = (count > 128) ? 128 : count;
uint32_t last_upper_base_addr = UPPER16((addr + 0x8000));
-
- pracc_add(&ctx, 0, MIPS32_LUI(15, last_upper_base_addr)); /* load $15 with memory base address */
+ /* load $15 with memory base address */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, last_upper_base_addr));
for (int i = 0; i != this_round_count; i++) {
uint32_t upper_base_addr = UPPER16((addr + 0x8000));
- if (last_upper_base_addr != upper_base_addr) {
- pracc_add(&ctx, 0, MIPS32_LUI(15, upper_base_addr)); /* if needed, change upper address in $15*/
+ if (last_upper_base_addr != upper_base_addr) { /* if needed, change upper address in $15*/
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 15, upper_base_addr));
last_upper_base_addr = upper_base_addr;
}
if (size == 4) {
- pracc_add_li32(&ctx, 8, *buf32, 1); /* load with li32, optimize */
- pracc_add(&ctx, 0, MIPS32_SW(8, LOWER16(addr), 15)); /* store word to memory */
+ pracc_add_li32(&ctx, 8, *buf32, 1); /* load with li32, optimize */
+ pracc_add(&ctx, 0, MIPS32_SW(ctx.isa, 8, LOWER16(addr), 15)); /* store word to mem */
buf32++;
} else if (size == 2) {
- pracc_add(&ctx, 0, MIPS32_ORI(8, 0, *buf16)); /* load lower value */
- pracc_add(&ctx, 0, MIPS32_SH(8, LOWER16(addr), 15)); /* store half word to memory */
+ pracc_add(&ctx, 0, MIPS32_ORI(ctx.isa, 8, 0, *buf16)); /* load lower value */
+ pracc_add(&ctx, 0, MIPS32_SH(ctx.isa, 8, LOWER16(addr), 15)); /* store half word */
buf16++;
} else {
- pracc_add(&ctx, 0, MIPS32_ORI(8, 0, *buf8)); /* load lower value */
- pracc_add(&ctx, 0, MIPS32_SB(8, LOWER16(addr), 15)); /* store byte to memory */
+ pracc_add(&ctx, 0, MIPS32_ORI(ctx.isa, 8, 0, *buf8)); /* load lower value */
+ pracc_add(&ctx, 0, MIPS32_SB(ctx.isa, 8, LOWER16(addr), 15)); /* store byte */
buf8++;
}
addr += size;
pracc_add_li32(&ctx, 8, ejtag_info->reg8, 0); /* restore $8 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MFC0(15, 31, 0)); /* restore $15 from DeSave */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 15, 31, 0)); /* restore $15 from DeSave */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, NULL, 1);
if (ctx.retval != ERROR_OK)
int mips32_pracc_write_regs(struct mips_ejtag *ejtag_info, uint32_t *regs)
{
- static const uint32_t cp0_write_code[] = {
- MIPS32_MTC0(1, 12, 0), /* move $1 to status */
- MIPS32_MTLO(1), /* move $1 to lo */
- MIPS32_MTHI(1), /* move $1 to hi */
- MIPS32_MTC0(1, 8, 0), /* move $1 to badvaddr */
- MIPS32_MTC0(1, 13, 0), /* move $1 to cause*/
- MIPS32_MTC0(1, 24, 0), /* move $1 to depc (pc) */
- };
-
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
+ uint32_t cp0_write_code[] = {
+ MIPS32_MTC0(ctx.isa, 1, 12, 0), /* move $1 to status */
+ MIPS32_MTLO(ctx.isa, 1), /* move $1 to lo */
+ MIPS32_MTHI(ctx.isa, 1), /* move $1 to hi */
+ MIPS32_MTC0(ctx.isa, 1, 8, 0), /* move $1 to badvaddr */
+ MIPS32_MTC0(ctx.isa, 1, 13, 0), /* move $1 to cause*/
+ MIPS32_MTC0(ctx.isa, 1, 24, 0), /* move $1 to depc (pc) */
+ };
+
/* load registers 2 to 31 with li32, optimize */
for (int i = 2; i < 32; i++)
pracc_add_li32(&ctx, i, regs[i], 1);
pracc_add_li32(&ctx, 1, regs[i + 32], 0); /* load CPO value in $1 */
pracc_add(&ctx, 0, cp0_write_code[i]); /* write value from $1 to CPO register */
}
- pracc_add(&ctx, 0, MIPS32_MTC0(15, 31, 0)); /* load $15 in DeSave */
- pracc_add(&ctx, 0, MIPS32_LUI(1, UPPER16((regs[1])))); /* load upper half word in $1 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_ORI(1, 1, LOWER16((regs[1])))); /* load lower half word in $1 */
+ pracc_add(&ctx, 0, MIPS32_MTC0(ctx.isa, 15, 31, 0)); /* load $15 in DeSave */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 1, UPPER16((regs[1])))); /* load upper half word in $1 */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_ORI(ctx.isa, 1, 1, LOWER16((regs[1])))); /* load lower half word in $1 */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, NULL, 1);
int mips32_pracc_read_regs(struct mips_ejtag *ejtag_info, uint32_t *regs)
{
- static int cp0_read_code[] = {
- MIPS32_MFC0(8, 12, 0), /* move status to $8 */
- MIPS32_MFLO(8), /* move lo to $8 */
- MIPS32_MFHI(8), /* move hi to $8 */
- MIPS32_MFC0(8, 8, 0), /* move badvaddr to $8 */
- MIPS32_MFC0(8, 13, 0), /* move cause to $8 */
- MIPS32_MFC0(8, 24, 0), /* move depc (pc) to $8 */
- };
-
- struct pracc_queue_info ctx;
+ struct pracc_queue_info ctx = {.ejtag_info = ejtag_info};
pracc_queue_init(&ctx);
- pracc_add(&ctx, 0, MIPS32_MTC0(1, 31, 0)); /* move $1 to COP0 DeSave */
- pracc_add(&ctx, 0, MIPS32_LUI(1, PRACC_UPPER_BASE_ADDR)); /* $1 = MIP32_PRACC_BASE_ADDR */
+ uint32_t cp0_read_code[] = {
+ MIPS32_MFC0(ctx.isa, 8, 12, 0), /* move status to $8 */
+ MIPS32_MFLO(ctx.isa, 8), /* move lo to $8 */
+ MIPS32_MFHI(ctx.isa, 8), /* move hi to $8 */
+ MIPS32_MFC0(ctx.isa, 8, 8, 0), /* move badvaddr to $8 */
+ MIPS32_MFC0(ctx.isa, 8, 13, 0), /* move cause to $8 */
+ MIPS32_MFC0(ctx.isa, 8, 24, 0), /* move depc (pc) to $8 */
+ };
+
+ pracc_add(&ctx, 0, MIPS32_MTC0(ctx.isa, 1, 31, 0)); /* move $1 to COP0 DeSave */
+ pracc_add(&ctx, 0, MIPS32_LUI(ctx.isa, 1, PRACC_UPPER_BASE_ADDR)); /* $1 = MIP32_PRACC_BASE_ADDR */
for (int i = 2; i != 32; i++) /* store GPR's 2 to 31 */
pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT + (i * 4),
- MIPS32_SW(i, PRACC_OUT_OFFSET + (i * 4), 1));
+ MIPS32_SW(ctx.isa, i, PRACC_OUT_OFFSET + (i * 4), 1));
for (int i = 0; i != 6; i++) {
pracc_add(&ctx, 0, cp0_read_code[i]); /* load COP0 needed registers to $8 */
pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT + (i + 32) * 4, /* store $8 at PARAM OUT */
- MIPS32_SW(8, PRACC_OUT_OFFSET + (i + 32) * 4, 1));
+ MIPS32_SW(ctx.isa, 8, PRACC_OUT_OFFSET + (i + 32) * 4, 1));
}
- pracc_add(&ctx, 0, MIPS32_MFC0(8, 31, 0)); /* move DeSave to $8, reg1 value */
- pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT + 4, /* store reg1 value from $8 to param out */
- MIPS32_SW(8, PRACC_OUT_OFFSET + 4, 1));
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 8, 31, 0)); /* move DeSave to $8, reg1 value */
+ pracc_add(&ctx, MIPS32_PRACC_PARAM_OUT + 4, /* store reg1 value from $8 to param out */
+ MIPS32_SW(ctx.isa, 8, PRACC_OUT_OFFSET + 4, 1));
- pracc_add(&ctx, 0, MIPS32_MFC0(1, 31, 0)); /* move COP0 DeSave to $1, restore reg1 */
- pracc_add(&ctx, 0, MIPS32_B(NEG16(ctx.code_count + 1))); /* jump to start */
- pracc_add(&ctx, 0, MIPS32_MTC0(15, 31, 0)); /* load $15 in DeSave */
+ pracc_add(&ctx, 0, MIPS32_MFC0(ctx.isa, 1, 31, 0)); /* move COP0 DeSave to $1, restore reg1 */
+ pracc_add(&ctx, 0, MIPS32_B(ctx.isa, NEG16((ctx.code_count + 1) << ctx.isa))); /* jump to start */
+ pracc_add(&ctx, 0, MIPS32_MTC0(ctx.isa, 15, 31, 0)); /* load $15 in DeSave */
ctx.retval = mips32_pracc_queue_exec(ejtag_info, &ctx, regs, 1);
int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_area *source,
int write_t, uint32_t addr, int count, uint32_t *buf)
{
+ uint32_t isa = ejtag_info->isa ? 1 : 0;
uint32_t handler_code[] = {
/* r15 points to the start of this code */
- MIPS32_SW(8, MIPS32_FASTDATA_HANDLER_SIZE - 4, 15),
- MIPS32_SW(9, MIPS32_FASTDATA_HANDLER_SIZE - 8, 15),
- MIPS32_SW(10, MIPS32_FASTDATA_HANDLER_SIZE - 12, 15),
- MIPS32_SW(11, MIPS32_FASTDATA_HANDLER_SIZE - 16, 15),
+ MIPS32_SW(isa, 8, MIPS32_FASTDATA_HANDLER_SIZE - 4, 15),
+ MIPS32_SW(isa, 9, MIPS32_FASTDATA_HANDLER_SIZE - 8, 15),
+ MIPS32_SW(isa, 10, MIPS32_FASTDATA_HANDLER_SIZE - 12, 15),
+ MIPS32_SW(isa, 11, MIPS32_FASTDATA_HANDLER_SIZE - 16, 15),
/* start of fastdata area in t0 */
- MIPS32_LUI(8, UPPER16(MIPS32_PRACC_FASTDATA_AREA)),
- MIPS32_ORI(8, 8, LOWER16(MIPS32_PRACC_FASTDATA_AREA)),
- MIPS32_LW(9, 0, 8), /* start addr in t1 */
- MIPS32_LW(10, 0, 8), /* end addr to t2 */
+ MIPS32_LUI(isa, 8, UPPER16(MIPS32_PRACC_FASTDATA_AREA)),
+ MIPS32_ORI(isa, 8, 8, LOWER16(MIPS32_PRACC_FASTDATA_AREA)),
+ MIPS32_LW(isa, 9, 0, 8), /* start addr in t1 */
+ MIPS32_LW(isa, 10, 0, 8), /* end addr to t2 */
/* loop: */
- write_t ? MIPS32_LW(11, 0, 8) : MIPS32_LW(11, 0, 9), /* from xfer area : from memory */
- write_t ? MIPS32_SW(11, 0, 9) : MIPS32_SW(11, 0, 8), /* to memory : to xfer area */
+ write_t ? MIPS32_LW(isa, 11, 0, 8) : MIPS32_LW(isa, 11, 0, 9), /* from xfer area : from memory */
+ write_t ? MIPS32_SW(isa, 11, 0, 9) : MIPS32_SW(isa, 11, 0, 8), /* to memory : to xfer area */
- MIPS32_BNE(10, 9, NEG16(3)), /* bne $t2,t1,loop */
- MIPS32_ADDI(9, 9, 4), /* addi t1,t1,4 */
+ MIPS32_BNE(isa, 10, 9, NEG16(3 << isa)), /* bne $t2,t1,loop */
+ MIPS32_ADDI(isa, 9, 9, 4), /* addi t1,t1,4 */
- MIPS32_LW(8, MIPS32_FASTDATA_HANDLER_SIZE - 4, 15),
- MIPS32_LW(9, MIPS32_FASTDATA_HANDLER_SIZE - 8, 15),
- MIPS32_LW(10, MIPS32_FASTDATA_HANDLER_SIZE - 12, 15),
- MIPS32_LW(11, MIPS32_FASTDATA_HANDLER_SIZE - 16, 15),
+ MIPS32_LW(isa, 8, MIPS32_FASTDATA_HANDLER_SIZE - 4, 15),
+ MIPS32_LW(isa, 9, MIPS32_FASTDATA_HANDLER_SIZE - 8, 15),
+ MIPS32_LW(isa, 10, MIPS32_FASTDATA_HANDLER_SIZE - 12, 15),
+ MIPS32_LW(isa, 11, MIPS32_FASTDATA_HANDLER_SIZE - 16, 15),
- MIPS32_LUI(15, UPPER16(MIPS32_PRACC_TEXT)),
- MIPS32_ORI(15, 15, LOWER16(MIPS32_PRACC_TEXT)),
- MIPS32_JR(15), /* jr start */
- MIPS32_MFC0(15, 31, 0), /* move COP0 DeSave to $15 */
+ MIPS32_LUI(isa, 15, UPPER16(MIPS32_PRACC_TEXT)),
+ MIPS32_ORI(isa, 15, 15, LOWER16(MIPS32_PRACC_TEXT) | isa), /* isa bit for JR instr */
+ MIPS32_JR(isa, 15), /* jr start */
+ MIPS32_MFC0(isa, 15, 31, 0), /* move COP0 DeSave to $15 */
};
if (source->size < MIPS32_FASTDATA_HANDLER_SIZE)
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ pracc_swap16_array(ejtag_info, handler_code, ARRAY_SIZE(handler_code));
/* write program into RAM */
if (write_t != ejtag_info->fast_access_save) {
mips32_pracc_write_mem(ejtag_info, source->address, 4, ARRAY_SIZE(handler_code), handler_code);
LOG_DEBUG("%s using 0x%.8" TARGET_PRIxADDR " for write handler", __func__, source->address);
uint32_t jmp_code[] = {
- MIPS32_LUI(15, UPPER16(source->address)), /* load addr of jump in $15 */
- MIPS32_ORI(15, 15, LOWER16(source->address)),
- MIPS32_JR(15), /* jump to ram program */
- MIPS32_NOP,
+ MIPS32_LUI(isa, 15, UPPER16(source->address)), /* load addr of jump in $15 */
+ MIPS32_ORI(isa, 15, 15, LOWER16(source->address) | isa), /* isa bit for JR instr */
+ MIPS32_JR(isa, 15), /* jump to ram program */
+ isa ? MIPS32_XORI(isa, 15, 15, 1) : MIPS32_NOP, /* drop isa bit, needed for LW/SW instructions */
};
+ pracc_swap16_array(ejtag_info, jmp_code, ARRAY_SIZE(jmp_code));
+
/* execute jump code, with no address check */
for (unsigned i = 0; i < ARRAY_SIZE(jmp_code); i++) {
int retval = wait_for_pracc_rw(ejtag_info);
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