#include "config.h"
#endif
+#include "imp.h"
#include "pic32mx.h"
-#include "mips32.h"
+#include <target/algorithm.h>
+#include <target/mips32.h>
+#include <target/mips_m4k.h>
-
-static
-struct pic32mx_devs_s {
+static const struct pic32mx_devs_s {
uint8_t devid;
- char *name;
- uint32_t pfm_size;
+ char *name;
} pic32mx_devs[] = {
- { 0x78, "460F512L USB", 512 },
- { 0x74, "460F256L USB", 256 },
- { 0x6D, "440F128L USB", 128 },
- { 0x56, "440F512H USB", 512 },
- { 0x52, "440F256H USB", 256 },
- { 0x4D, "440F128H USB", 128 },
- { 0x42, "420F032H USB", 32 },
- { 0x38, "360F512L", 512 },
- { 0x34, "360F256L", 256 },
- { 0x2D, "340F128L", 128 },
- { 0x2A, "320F128L", 128 },
- { 0x16, "340F512H", 512 },
- { 0x12, "340F256H", 256 },
- { 0x0D, "340F128H", 128 },
- { 0x0A, "320F128H", 128 },
- { 0x06, "320F064H", 64 },
- { 0x02, "320F032H", 32 },
- { 0x00, NULL, 0 }
+ {0x38, "360F512L"},
+ {0x34, "360F256L"},
+ {0x2D, "340F128L"},
+ {0x2A, "320F128L"},
+ {0x16, "340F512H"},
+ {0x12, "340F256H"},
+ {0x0D, "340F128H"},
+ {0x0A, "320F128H"},
+ {0x06, "320F064H"},
+ {0x02, "320F032H"},
+ {0x07, "795F512L"},
+ {0x0E, "795F512H"},
+ {0x11, "675F512L"},
+ {0x0C, "675F512H"},
+ {0x0F, "575F512L"},
+ {0x09, "575F512H"},
+ {0x17, "575F256H"},
+ {0x78, "460F512L"},
+ {0x74, "460F256L"},
+ {0x6D, "440F128L"},
+ {0x56, "440F512H"},
+ {0x52, "440F256H"},
+ {0x4D, "440F128H"},
+ {0x42, "420F032H"},
+ {0x00, NULL}
};
-static int pic32mx_write_row(struct flash_bank *bank, uint32_t address, uint32_t srcaddr);
-static int pic32mx_write_word(struct flash_bank *bank, uint32_t address, uint32_t word);
-
/* flash bank pic32mx <base> <size> 0 0 <target#>
*/
FLASH_BANK_COMMAND_HANDLER(pic32mx_flash_bank_command)
}
target_read_u32(target, PIC32MX_DEVCFG0, &devcfg0);
+
if ((devcfg0 & (1 << 28)) == 0) /* code protect bit */
num_pages = 0xffff; /* All pages protected */
- else if (bank->base == PIC32MX_KSEG1_BOOT_FLASH)
+ else if (Virt2Phys(bank->base) == PIC32MX_PHYS_BOOT_FLASH)
{
if (devcfg0 & (1 << 24))
num_pages = 0; /* All pages unprotected */
}
else /* pgm flash */
num_pages = (~devcfg0 >> 12) & 0xff;
+
for (s = 0; s < bank->num_sectors && s < num_pages; s++)
bank->sectors[s].is_protected = 1;
for (; s < bank->num_sectors; s++)
return ERROR_TARGET_NOT_HALTED;
}
- if ((first == 0) && (last == (bank->num_sectors - 1)) && (bank->base == PIC32MX_KSEG0_PGM_FLASH || bank->base == PIC32MX_KSEG1_PGM_FLASH))
+ if ((first == 0) && (last == (bank->num_sectors - 1))
+ && (Virt2Phys(bank->base) == PIC32MX_PHYS_PGM_FLASH))
{
+ /* this will only erase the Program Flash (PFM), not the Boot Flash (BFM)
+ * we need to use the MTAP to perform a full erase */
LOG_DEBUG("Erasing entire program flash");
status = pic32mx_nvm_exec(bank, NVMCON_OP_PFM_ERASE, 50);
if (status & NVMCON_NVMERR)
for (i = first; i <= last; i++)
{
- if (bank->base >= PIC32MX_KSEG1_PGM_FLASH)
- target_write_u32(target, PIC32MX_NVMADDR, KS1Virt2Phys(bank->base + bank->sectors[i].offset));
- else
- target_write_u32(target, PIC32MX_NVMADDR, KS0Virt2Phys(bank->base + bank->sectors[i].offset));
+ target_write_u32(target, PIC32MX_NVMADDR, Virt2Phys(bank->base + bank->sectors[i].offset));
status = pic32mx_nvm_exec(bank, NVMCON_OP_PAGE_ERASE, 10);
{
struct pic32mx_flash_bank *pic32mx_info = NULL;
struct target *target = bank->target;
-#if 0
- uint16_t prot_reg[4] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
- int i, reg, bit;
- int status;
- uint32_t protection;
-#endif
pic32mx_info = bank->driver_priv;
return ERROR_TARGET_NOT_HALTED;
}
-#if 0
- if ((first && (first % pic32mx_info->ppage_size)) || ((last + 1) && (last + 1) % pic32mx_info->ppage_size))
- {
- LOG_WARNING("sector start/end incorrect - stm32 has %dK sector protection", pic32mx_info->ppage_size);
- return ERROR_FLASH_SECTOR_INVALID;
- }
-
- /* medium density - each bit refers to a 4bank protection
- * high density - each bit refers to a 2bank protection */
- target_read_u32(target, PIC32MX_FLASH_WRPR, &protection);
-
- prot_reg[0] = (uint16_t)protection;
- prot_reg[1] = (uint16_t)(protection >> 8);
- prot_reg[2] = (uint16_t)(protection >> 16);
- prot_reg[3] = (uint16_t)(protection >> 24);
-
- if (pic32mx_info->ppage_size == 2)
- {
- /* high density flash */
-
- /* bit 7 controls sector 62 - 255 protection */
- if (last > 61)
- {
- if (set)
- prot_reg[3] &= ~(1 << 7);
- else
- prot_reg[3] |= (1 << 7);
- }
-
- if (first > 61)
- first = 62;
- if (last > 61)
- last = 61;
-
- for (i = first; i <= last; i++)
- {
- reg = (i / pic32mx_info->ppage_size) / 8;
- bit = (i / pic32mx_info->ppage_size) - (reg * 8);
-
- if (set)
- prot_reg[reg] &= ~(1 << bit);
- else
- prot_reg[reg] |= (1 << bit);
- }
- }
- else
- {
- /* medium density flash */
- for (i = first; i <= last; i++)
- {
- reg = (i / pic32mx_info->ppage_size) / 8;
- bit = (i / pic32mx_info->ppage_size) - (reg * 8);
-
- if (set)
- prot_reg[reg] &= ~(1 << bit);
- else
- prot_reg[reg] |= (1 << bit);
- }
- }
-
- if ((status = pic32mx_erase_options(bank)) != ERROR_OK)
- return status;
-
- pic32mx_info->option_bytes.protection[0] = prot_reg[0];
- pic32mx_info->option_bytes.protection[1] = prot_reg[1];
- pic32mx_info->option_bytes.protection[2] = prot_reg[2];
- pic32mx_info->option_bytes.protection[3] = prot_reg[3];
-
- return pic32mx_write_options(bank);
-#else
return ERROR_OK;
-#endif
}
-static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+/* see contib/loaders/flash/pic32mx.s for src */
+
+static const uint32_t pic32mx_flash_write_code[] = {
+ /* write: */
+ 0x3C08AA99, /* lui $t0, 0xaa99 */
+ 0x35086655, /* ori $t0, 0x6655 */
+ 0x3C095566, /* lui $t1, 0x5566 */
+ 0x352999AA, /* ori $t1, 0x99aa */
+ 0x3C0ABF80, /* lui $t2, 0xbf80 */
+ 0x354AF400, /* ori $t2, 0xf400 */
+ 0x340B4003, /* ori $t3, $zero, 0x4003 */
+ 0x340C8000, /* ori $t4, $zero, 0x8000 */
+ /* write_row: */
+ 0x2CD30080, /* sltiu $s3, $a2, 128 */
+ 0x16600008, /* bne $s3, $zero, write_word */
+ 0x340D4000, /* ori $t5, $zero, 0x4000 */
+ 0xAD450020, /* sw $a1, 32($t2) */
+ 0xAD440040, /* sw $a0, 64($t2) */
+ 0x04110016, /* bal progflash */
+ 0x24840200, /* addiu $a0, $a0, 512 */
+ 0x24A50200, /* addiu $a1, $a1, 512 */
+ 0x1000FFF7, /* beq $zero, $zero, write_row */
+ 0x24C6FF80, /* addiu $a2, $a2, -128 */
+ /* write_word: */
+ 0x3C15A000, /* lui $s5, 0xa000 */
+ 0x36B50000, /* ori $s5, $s5, 0x0 */
+ 0x00952025, /* or $a0, $a0, $s5 */
+ 0x10000008, /* beq $zero, $zero, next_word */
+ 0x340B4001, /* ori $t3, $zero, 0x4001 */
+ /* prog_word: */
+ 0x8C940000, /* lw $s4, 0($a0) */
+ 0xAD540030, /* sw $s4, 48($t2) */
+ 0xAD450020, /* sw $a1, 32($t2) */
+ 0x04110009, /* bal progflash */
+ 0x24840004, /* addiu $a0, $a0, 4 */
+ 0x24A50004, /* addiu $a1, $a1, 4 */
+ 0x24C6FFFF, /* addiu $a2, $a2, -1 */
+ /* next_word: */
+ 0x14C0FFF8, /* bne $a2, $zero, prog_word */
+ 0x00000000, /* nop */
+ /* done: */
+ 0x10000002, /* beq $zero, $zero, exit */
+ 0x24040000, /* addiu $a0, $zero, 0 */
+ /* error: */
+ 0x26240000, /* addiu $a0, $s1, 0 */
+ /* exit: */
+ 0x7000003F, /* sdbbp */
+ /* progflash: */
+ 0xAD4B0000, /* sw $t3, 0($t2) */
+ 0xAD480010, /* sw $t0, 16($t2) */
+ 0xAD490010, /* sw $t1, 16($t2) */
+ 0xAD4C0008, /* sw $t4, 8($t2) */
+ /* waitflash: */
+ 0x8D500000, /* lw $s0, 0($t2) */
+ 0x020C8024, /* and $s0, $s0, $t4 */
+ 0x1600FFFD, /* bne $s0, $zero, waitflash */
+ 0x00000000, /* nop */
+ 0x00000000, /* nop */
+ 0x00000000, /* nop */
+ 0x00000000, /* nop */
+ 0x00000000, /* nop */
+ 0x8D510000, /* lw $s1, 0($t2) */
+ 0x30113000, /* andi $s1, $zero, 0x3000 */
+ 0x1620FFEF, /* bne $s1, $zero, error */
+ 0xAD4D0004, /* sw $t5, 4($t2) */
+ 0x03E00008, /* jr $ra */
+ 0x00000000 /* nop */
+};
+
+static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
+ uint32_t offset, uint32_t count)
{
struct target *target = bank->target;
- uint32_t buffer_size = 512;
+ uint32_t buffer_size = 16384;
struct working_area *source;
uint32_t address = bank->base + offset;
+ struct reg_param reg_params[3];
int retval = ERROR_OK;
-#if 0
+
struct pic32mx_flash_bank *pic32mx_info = bank->driver_priv;
- struct armv7m_algorithm armv7m_info;
-
- uint8_t pic32mx_flash_write_code[] = {
- /* write: */
- 0xDF, 0xF8, 0x24, 0x40, /* ldr r4, PIC32MX_FLASH_CR */
- 0x09, 0x4D, /* ldr r5, PIC32MX_FLASH_SR */
- 0x4F, 0xF0, 0x01, 0x03, /* mov r3, #1 */
- 0x23, 0x60, /* str r3, [r4, #0] */
- 0x30, 0xF8, 0x02, 0x3B, /* ldrh r3, [r0], #2 */
- 0x21, 0xF8, 0x02, 0x3B, /* strh r3, [r1], #2 */
- /* busy: */
- 0x2B, 0x68, /* ldr r3, [r5, #0] */
- 0x13, 0xF0, 0x01, 0x0F, /* tst r3, #0x01 */
- 0xFB, 0xD0, /* beq busy */
- 0x13, 0xF0, 0x14, 0x0F, /* tst r3, #0x14 */
- 0x01, 0xD1, /* bne exit */
- 0x01, 0x3A, /* subs r2, r2, #1 */
- 0xED, 0xD1, /* bne write */
- /* exit: */
- 0xFE, 0xE7, /* b exit */
- 0x10, 0x20, 0x02, 0x40, /* PIC32MX_FLASH_CR: .word 0x40022010 */
- 0x0C, 0x20, 0x02, 0x40 /* PIC32MX_FLASH_SR: .word 0x4002200C */
- };
+ struct mips32_algorithm mips32_info;
/* flash write code */
- if (target_alloc_working_area(target, sizeof(pic32mx_flash_write_code), &pic32mx_info->write_algorithm) != ERROR_OK)
+ if (target_alloc_working_area(target, sizeof(pic32mx_flash_write_code),
+ &pic32mx_info->write_algorithm) != ERROR_OK)
{
LOG_WARNING("no working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
- if ((retval = target_write_buffer(target, pic32mx_info->write_algorithm->address, sizeof(pic32mx_flash_write_code), pic32mx_flash_write_code)) != ERROR_OK)
+ if ((retval = target_write_buffer(target,
+ pic32mx_info->write_algorithm->address,
+ sizeof(pic32mx_flash_write_code),
+ (uint8_t*)pic32mx_flash_write_code)) != ERROR_OK)
return retval;
-#endif
/* memory buffer */
- if (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
+ while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK)
{
-#if 0
- /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
- if (pic32mx_info->write_algorithm)
- target_free_working_area(target, pic32mx_info->write_algorithm);
-#endif
+ buffer_size /= 2;
+ if (buffer_size <= 256)
+ {
+ /* if we already allocated the writing code, but failed to get a
+ * buffer, free the algorithm */
+ if (pic32mx_info->write_algorithm)
+ target_free_working_area(target, pic32mx_info->write_algorithm);
- LOG_WARNING("no large enough working area available, can't do block memory writes");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- }
+ LOG_WARNING("no large enough working area available, can't do block memory writes");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+ };
+
+ mips32_info.common_magic = MIPS32_COMMON_MAGIC;
+ mips32_info.isa_mode = MIPS32_ISA_MIPS32;
+
+ init_reg_param(®_params[0], "a0", 32, PARAM_IN_OUT);
+ init_reg_param(®_params[1], "a1", 32, PARAM_OUT);
+ init_reg_param(®_params[2], "a2", 32, PARAM_OUT);
- while (count >= buffer_size/4)
+ while (count > 0)
{
uint32_t status;
+ uint32_t thisrun_count = (count > (buffer_size / 4)) ?
+ (buffer_size / 4) : count;
- if ((retval = target_write_buffer(target, source->address, buffer_size, buffer)) != ERROR_OK) {
- LOG_ERROR("Failed to write row buffer (%d words) to RAM", (int)(buffer_size/4));
+ if ((retval = target_write_buffer(target, source->address,
+ thisrun_count * 4, buffer)) != ERROR_OK)
break;
- }
-#if 0
- buf_set_u32(reg_params[0].value, 0, 32, source->address);
- buf_set_u32(reg_params[1].value, 0, 32, address);
- buf_set_u32(reg_params[2].value, 0, 32, buffer_size/4);
+ buf_set_u32(reg_params[0].value, 0, 32, Virt2Phys(source->address));
+ buf_set_u32(reg_params[1].value, 0, 32, Virt2Phys(address));
+ buf_set_u32(reg_params[2].value, 0, 32, thisrun_count);
- if ((retval = target_run_algorithm(target, 0, NULL, 4, reg_params, pic32mx_info->write_algorithm->address, \
- pic32mx_info->write_algorithm->address + (sizeof(pic32mx_flash_write_code) - 10), 10000, &armv7m_info)) != ERROR_OK)
+ if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
+ pic32mx_info->write_algorithm->address,
+ 0,
+ 10000, &mips32_info)) != ERROR_OK)
{
LOG_ERROR("error executing pic32mx flash write algorithm");
retval = ERROR_FLASH_OPERATION_FAILED;
break;
}
- if (buf_get_u32(reg_params[3].value, 0, 32) & 0x14)
+ status = buf_get_u32(reg_params[0].value, 0, 32);
+
+ if (status & NVMCON_NVMERR)
{
- retval = ERROR_FLASH_OPERATION_FAILED;
- break;
- }
-#endif
- status = pic32mx_write_row(bank, address, source->address);
- if (status & NVMCON_NVMERR) {
LOG_ERROR("Flash write error NVMERR (status = 0x%08" PRIx32 ")", status);
retval = ERROR_FLASH_OPERATION_FAILED;
break;
}
- if (status & NVMCON_LVDERR) {
+
+ if (status & NVMCON_LVDERR)
+ {
LOG_ERROR("Flash write error LVDERR (status = 0x%08" PRIx32 ")", status);
retval = ERROR_FLASH_OPERATION_FAILED;
break;
}
- buffer += buffer_size;
- address += buffer_size;
- count -= buffer_size/4;
+ buffer += thisrun_count * 4;
+ address += thisrun_count * 4;
+ count -= thisrun_count;
}
target_free_working_area(target, source);
+ target_free_working_area(target, pic32mx_info->write_algorithm);
- while (count > 0)
- {
- uint32_t value;
- memcpy(&value, buffer, sizeof(uint32_t));
-
- uint32_t status = pic32mx_write_word(bank, address, value);
- if (status & NVMCON_NVMERR) {
- LOG_ERROR("Flash write error NVMERR (status = 0x%08" PRIx32 ")", status);
- retval = ERROR_FLASH_OPERATION_FAILED;
- break;
- }
- if (status & NVMCON_LVDERR) {
- LOG_ERROR("Flash write error LVDERR (status = 0x%08" PRIx32 ")", status);
- retval = ERROR_FLASH_OPERATION_FAILED;
- break;
- }
-
- buffer += 4;
- address += 4;
- count--;
- }
+ destroy_reg_param(®_params[0]);
+ destroy_reg_param(®_params[1]);
+ destroy_reg_param(®_params[2]);
return retval;
}
{
struct target *target = bank->target;
- if (bank->base >= PIC32MX_KSEG1_PGM_FLASH)
- target_write_u32(target, PIC32MX_NVMADDR, KS1Virt2Phys(address));
- else
- target_write_u32(target, PIC32MX_NVMADDR, KS0Virt2Phys(address));
+ target_write_u32(target, PIC32MX_NVMADDR, Virt2Phys(address));
target_write_u32(target, PIC32MX_NVMDATA, word);
return pic32mx_nvm_exec(bank, NVMCON_OP_WORD_PROG, 5);
}
-/*
- * Write a 128 word (512 byte) row to flash address from RAM srcaddr.
- */
-static int pic32mx_write_row(struct flash_bank *bank, uint32_t address, uint32_t srcaddr)
-{
- struct target *target = bank->target;
-
- LOG_DEBUG("addr: 0x%08" PRIx32 " srcaddr: 0x%08" PRIx32 "", address, srcaddr);
-
- if (address >= PIC32MX_KSEG1_PGM_FLASH)
- target_write_u32(target, PIC32MX_NVMADDR, KS1Virt2Phys(address));
- else
- target_write_u32(target, PIC32MX_NVMADDR, KS0Virt2Phys(address));
- if (srcaddr >= PIC32MX_KSEG1_RAM)
- target_write_u32(target, PIC32MX_NVMSRCADDR, KS1Virt2Phys(srcaddr));
- else
- target_write_u32(target, PIC32MX_NVMSRCADDR, KS0Virt2Phys(srcaddr));
-
- return pic32mx_nvm_exec(bank, NVMCON_OP_ROW_PROG, 100);
-}
-
static int pic32mx_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
uint32_t words_remaining = (count / 4);
return ERROR_TARGET_NOT_HALTED;
}
+ LOG_DEBUG("writing to flash at address 0x%08" PRIx32 " at offset 0x%8.8" PRIx32
+ " count: 0x%8.8" PRIx32 "", bank->base, offset, count);
+
if (offset & 0x3)
{
LOG_WARNING("offset 0x%" PRIx32 "breaks required 4-byte alignment", offset);
memcpy(&value, buffer + bytes_written, sizeof(uint32_t));
status = pic32mx_write_word(bank, address, value);
+
if (status & NVMCON_NVMERR)
+ {
+ LOG_ERROR("Flash write error NVMERR (status = 0x%08" PRIx32 ")", status);
return ERROR_FLASH_OPERATION_FAILED;
+ }
+
if (status & NVMCON_LVDERR)
+ {
+ LOG_ERROR("Flash write error LVDERR (status = 0x%08" PRIx32 ")", status);
return ERROR_FLASH_OPERATION_FAILED;
+ }
bytes_written += 4;
words_remaining--;
memcpy(&value, buffer + bytes_written, bytes_remaining);
status = pic32mx_write_word(bank, address, value);
+
if (status & NVMCON_NVMERR)
+ {
+ LOG_ERROR("Flash write error NVMERR (status = 0x%08" PRIx32 ")", status);
return ERROR_FLASH_OPERATION_FAILED;
+ }
+
if (status & NVMCON_LVDERR)
+ {
+ LOG_ERROR("Flash write error LVDERR (status = 0x%08" PRIx32 ")", status);
return ERROR_FLASH_OPERATION_FAILED;
+ }
}
return ERROR_OK;
struct mips32_common *mips32 = target->arch_info;
struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
int i;
- uint16_t num_pages = 0;
+ uint32_t num_pages = 0;
uint32_t device_id;
int page_size;
pic32mx_info->probed = 0;
device_id = ejtag_info->idcode;
- LOG_INFO("device id = 0x%08" PRIx32 " (manuf 0x%03x dev 0x%02x, ver 0x%03x)",
+ LOG_INFO("device id = 0x%08" PRIx32 " (manuf 0x%03x dev 0x%02x, ver 0x%02x)",
device_id,
- (unsigned)((device_id >> 1)&0x7ff),
- (unsigned)((device_id >> 12)&0xff),
- (unsigned)((device_id >> 20)&0xfff));
+ (unsigned)((device_id >> 1) & 0x7ff),
+ (unsigned)((device_id >> 12) & 0xff),
+ (unsigned)((device_id >> 28) & 0xf));
- if (((device_id >> 1)&0x7ff) != PIC32MX_MANUF_ID) {
+ if (((device_id >> 1) & 0x7ff) != PIC32MX_MANUF_ID) {
LOG_WARNING("Cannot identify target as a PIC32MX family.");
return ERROR_FLASH_OPERATION_FAILED;
}
page_size = 4096;
- if (bank->base == PIC32MX_KSEG1_BOOT_FLASH || bank->base == 1) {
- /* 0xBFC00000: Boot flash size fixed at 12k */
- num_pages = 12;
- } else {
- /* 0xBD000000: Program flash size varies with device */
- for (i = 0; pic32mx_devs[i].name != NULL; i++)
- if (pic32mx_devs[i].devid == ((device_id >> 12) & 0xff)) {
- num_pages = pic32mx_devs[i].pfm_size;
- break;
- }
- if (pic32mx_devs[i].name == NULL) {
- LOG_WARNING("Cannot identify target as a PIC32MX family.");
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
+ if (Virt2Phys(bank->base) == PIC32MX_PHYS_BOOT_FLASH)
+ {
+ /* 0x1FC00000: Boot flash size */
#if 0
- if (bank->target->state != TARGET_HALTED)
+ /* for some reason this register returns 8k for the boot bank size
+ * this does not match the docs, so for now set the boot bank at a
+ * fixed 12k */
+ if (target_read_u32(target, PIC32MX_BMXBOOTSZ, &num_pages) != ERROR_OK) {
+ LOG_WARNING("PIC32MX flash size failed, probe inaccurate - assuming 12k flash");
+ num_pages = (12 * 1024);
+ }
+#else
+ /* fixed 12k boot bank - see comments above */
+ num_pages = (12 * 1024);
+#endif
+ }
+ else
{
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ /* read the flash size from the device */
+ if (target_read_u32(target, PIC32MX_BMXPFMSZ, &num_pages) != ERROR_OK) {
+ LOG_WARNING("PIC32MX flash size failed, probe inaccurate - assuming 512k flash");
+ num_pages = (512 * 1024);
+ }
}
- /* get flash size from target */
- if (target_read_u16(target, 0x1FFFF7E0, &num_pages) != ERROR_OK)
+ LOG_INFO("flash size = %" PRId32 "kbytes", num_pages / 1024);
+
+ if (bank->sectors)
{
- /* failed reading flash size, default to max target family */
- num_pages = 0xffff;
+ free(bank->sectors);
+ bank->sectors = NULL;
}
-#endif
-
- LOG_INFO("flash size = %dkbytes", num_pages);
/* calculate numbers of pages */
- num_pages /= (page_size / 1024);
-
- if (bank->base == 0) bank->base = PIC32MX_KSEG1_PGM_FLASH;
- if (bank->base == 1) bank->base = PIC32MX_KSEG1_BOOT_FLASH;
+ num_pages /= page_size;
bank->size = (num_pages * page_size);
bank->num_sectors = num_pages;
- bank->chip_width = 4;
- bank->bus_width = 4;
bank->sectors = malloc(sizeof(struct flash_sector) * num_pages);
- for (i = 0; i < num_pages; i++)
+ for (i = 0; i < (int)num_pages; i++)
{
bank->sectors[i].offset = i * page_size;
bank->sectors[i].size = page_size;
return pic32mx_probe(bank);
}
-#if 0
-COMMAND_HANDLER(pic32mx_handle_part_id_command)
-{
- return ERROR_OK;
-}
-#endif
-
static int pic32mx_info(struct flash_bank *bank, char *buf, int buf_size)
{
struct target *target = bank->target;
device_id = ejtag_info->idcode;
- if (((device_id >> 1)&0x7ff) != PIC32MX_MANUF_ID) {
+ if (((device_id >> 1) & 0x7ff) != PIC32MX_MANUF_ID) {
snprintf(buf, buf_size,
"Cannot identify target as a PIC32MX family (manufacturer 0x%03d != 0x%03d)\n",
- (unsigned)((device_id >> 1)&0x7ff),
+ (unsigned)((device_id >> 1) & 0x7ff),
PIC32MX_MANUF_ID);
return ERROR_FLASH_OPERATION_FAILED;
}
+
for (i = 0; pic32mx_devs[i].name != NULL; i++)
+ {
if (pic32mx_devs[i].devid == ((device_id >> 12) & 0xff)) {
printed = snprintf(buf, buf_size, "PIC32MX%s", pic32mx_devs[i].name);
break;
}
+ }
+
if (pic32mx_devs[i].name == NULL) {
- snprintf(buf, buf_size, "Cannot identify target as a PIC32MX family\n");
- return ERROR_FLASH_OPERATION_FAILED;
+ printed = snprintf(buf, buf_size, "Unknown");
}
+
buf += printed;
buf_size -= printed;
- printed = snprintf(buf, buf_size, " Ver: 0x%03x",
- (unsigned)((device_id >> 20)&0xfff));
+ printed = snprintf(buf, buf_size, " Ver: 0x%02x",
+ (unsigned)((device_id >> 28) & 0xf));
return ERROR_OK;
}
-#if 0
-COMMAND_HANDLER(pic32mx_handle_lock_command)
+COMMAND_HANDLER(pic32mx_handle_pgm_word_command)
{
- struct target *target = NULL;
- struct pic32mx_flash_bank *pic32mx_info = NULL;
+ uint32_t address, value;
+ int status, res;
- if (CMD_ARGC < 1)
+ if (CMD_ARGC != 3)
{
- command_print(CMD_CTX, "pic32mx lock <bank>");
+ command_print(CMD_CTX, "pic32mx pgm_word <addr> <value> <bank>");
return ERROR_OK;
}
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
+
struct flash_bank *bank;
- int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
+ int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 2, &bank);
if (ERROR_OK != retval)
return retval;
- pic32mx_info = bank->driver_priv;
-
- target = bank->target;
-
- if (target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- if (pic32mx_erase_options(bank) != ERROR_OK)
+ if (address < bank->base || address >= (bank->base + bank->size))
{
- command_print(CMD_CTX, "pic32mx failed to erase options");
+ command_print(CMD_CTX, "flash address '%s' is out of bounds", CMD_ARGV[0]);
return ERROR_OK;
}
- /* set readout protection */
- pic32mx_info->option_bytes.RDP = 0;
-
- if (pic32mx_write_options(bank) != ERROR_OK)
- {
- command_print(CMD_CTX, "pic32mx failed to lock device");
- return ERROR_OK;
- }
+ res = ERROR_OK;
+ status = pic32mx_write_word(bank, address, value);
+ if (status & NVMCON_NVMERR)
+ res = ERROR_FLASH_OPERATION_FAILED;
+ if (status & NVMCON_LVDERR)
+ res = ERROR_FLASH_OPERATION_FAILED;
- command_print(CMD_CTX, "pic32mx locked");
+ if (res == ERROR_OK)
+ command_print(CMD_CTX, "pic32mx pgm word complete");
+ else
+ command_print(CMD_CTX, "pic32mx pgm word failed (status = 0x%x)", status);
return ERROR_OK;
}
COMMAND_HANDLER(pic32mx_handle_unlock_command)
{
+ uint32_t mchip_cmd;
struct target *target = NULL;
- struct pic32mx_flash_bank *pic32mx_info = NULL;
+ struct mips_m4k_common *mips_m4k;
+ struct mips_ejtag *ejtag_info;
+ int timeout = 10;
if (CMD_ARGC < 1)
{
if (ERROR_OK != retval)
return retval;
- pic32mx_info = bank->driver_priv;
-
target = bank->target;
+ mips_m4k = target_to_m4k(target);
+ ejtag_info = &mips_m4k->mips32.ejtag_info;
- if (target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
+ /* we have to use the MTAP to perform a full erase */
+ mips_ejtag_set_instr(ejtag_info, MTAP_SW_MTAP);
+ mips_ejtag_set_instr(ejtag_info, MTAP_COMMAND);
- if (pic32mx_erase_options(bank) != ERROR_OK)
+ /* first check status of device */
+ mchip_cmd = MCHP_STATUS;
+ mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
+ if (mchip_cmd & (1 << 7))
{
- command_print(CMD_CTX, "pic32mx failed to unlock device");
- return ERROR_OK;
- }
-
- if (pic32mx_write_options(bank) != ERROR_OK)
- {
- command_print(CMD_CTX, "pic32mx failed to lock device");
- return ERROR_OK;
- }
-
- command_print(CMD_CTX, "pic32mx unlocked");
-
- return ERROR_OK;
-}
-#endif
-
-#if 0
-static int pic32mx_chip_erase(struct flash_bank *bank)
-{
- struct target *target = bank->target;
-#if 0
- uint32_t status;
-#endif
-
- if (target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ /* device is not locked */
+ command_print(CMD_CTX, "pic32mx is already unlocked, erasing anyway");
}
- LOG_INFO("PIC32MX chip erase called");
-
-#if 0
- /* unlock option flash registers */
- target_write_u32(target, PIC32MX_FLASH_KEYR, KEY1);
- target_write_u32(target, PIC32MX_FLASH_KEYR, KEY2);
-
- /* chip erase flash memory */
- target_write_u32(target, PIC32MX_FLASH_CR, FLASH_MER);
- target_write_u32(target, PIC32MX_FLASH_CR, FLASH_MER | FLASH_STRT);
-
- status = pic32mx_wait_status_busy(bank, 10);
+ /* unlock/erase device */
+ mchip_cmd = MCHP_ASERT_RST;
+ mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
- target_write_u32(target, PIC32MX_FLASH_CR, FLASH_LOCK);
-
- if (status & FLASH_WRPRTERR)
- {
- LOG_ERROR("pic32mx device protected");
- return ERROR_OK;
- }
-
- if (status & FLASH_PGERR)
- {
- LOG_ERROR("pic32mx device programming failed");
- return ERROR_OK;
- }
-#endif
+ mchip_cmd = MCHP_ERASE;
+ mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
- return ERROR_OK;
-}
-#endif
-
-COMMAND_HANDLER(pic32mx_handle_chip_erase_command)
-{
-#if 0
- int i;
-
- if (CMD_ARGC != 0)
- {
- command_print(CMD_CTX, "pic32mx chip_erase");
- return ERROR_OK;
- }
-
- struct flash_bank *bank;
- int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
- return retval;
-
- if (pic32mx_chip_erase(bank) == ERROR_OK)
- {
- /* set all sectors as erased */
- for (i = 0; i < bank->num_sectors; i++)
+ do {
+ mchip_cmd = MCHP_STATUS;
+ mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
+ if (timeout-- == 0)
{
- bank->sectors[i].is_erased = 1;
+ LOG_DEBUG("timeout waiting for unlock: 0x%" PRIx32 "", mchip_cmd);
+ break;
}
+ alive_sleep(1);
+ } while ((mchip_cmd & (1 << 2)) || (!(mchip_cmd & (1 << 3))));
- command_print(CMD_CTX, "pic32mx chip erase complete");
- }
- else
- {
- command_print(CMD_CTX, "pic32mx chip erase failed");
- }
-#endif
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(pic32mx_handle_pgm_word_command)
-{
- uint32_t address, value;
- int status, res;
-
- if (CMD_ARGC != 3)
- {
- command_print(CMD_CTX, "pic32mx pgm_word <addr> <value> <bank>");
- return ERROR_OK;
- }
-
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
-
- struct flash_bank *bank;
- int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 2, &bank);
- if (ERROR_OK != retval)
- return retval;
-
- if (address < bank->base || address >= (bank->base + bank->size))
- {
- command_print(CMD_CTX, "flash address '%s' is out of bounds", CMD_ARGV[0]);
- return ERROR_OK;
- }
+ mchip_cmd = MCHP_DE_ASSERT_RST;
+ mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
- res = ERROR_OK;
- status = pic32mx_write_word(bank, address, value);
- if (status & NVMCON_NVMERR)
- res = ERROR_FLASH_OPERATION_FAILED;
- if (status & NVMCON_LVDERR)
- res = ERROR_FLASH_OPERATION_FAILED;
+ /* select ejtag tap */
+ mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP);
- if (res == ERROR_OK)
- command_print(CMD_CTX, "pic32mx pgm word complete");
- else
- command_print(CMD_CTX, "pic32mx pgm word failed (status = 0x%x)", status);
+ command_print(CMD_CTX, "pic32mx unlocked.\n"
+ "INFO: a reset or power cycle is required "
+ "for the new settings to take effect.");
return ERROR_OK;
}
+
static const struct command_registration pic32mx_exec_command_handlers[] = {
{
- .name = "chip_erase",
- .handler = &pic32mx_handle_chip_erase_command,
+ .name = "pgm_word",
+ .handler = pic32mx_handle_pgm_word_command,
.mode = COMMAND_EXEC,
- .help = "erase device",
+ .help = "program a word",
},
{
- .name = "pgm_word",
- .handler = &pic32mx_handle_pgm_word_command,
+ .name = "unlock",
+ .handler = pic32mx_handle_unlock_command,
.mode = COMMAND_EXEC,
- .help = "program a word",
+ .usage = "[bank_id]",
+ .help = "Unlock/Erase entire device.",
},
COMMAND_REGISTRATION_DONE
};
+
static const struct command_registration pic32mx_command_handlers[] = {
{
.name = "pic32mx",
};
struct flash_driver pic32mx_flash = {
- .name = "pic32mx",
- .commands = pic32mx_command_handlers,
- .flash_bank_command = &pic32mx_flash_bank_command,
- .erase = &pic32mx_erase,
- .protect = &pic32mx_protect,
- .write = &pic32mx_write,
- .probe = &pic32mx_probe,
- .auto_probe = &pic32mx_auto_probe,
- .erase_check = &default_flash_mem_blank_check,
- .protect_check = &pic32mx_protect_check,
- .info = &pic32mx_info,
- };
+ .name = "pic32mx",
+ .commands = pic32mx_command_handlers,
+ .flash_bank_command = pic32mx_flash_bank_command,
+ .erase = pic32mx_erase,
+ .protect = pic32mx_protect,
+ .write = pic32mx_write,
+ .read = default_flash_read,
+ .probe = pic32mx_probe,
+ .auto_probe = pic32mx_auto_probe,
+ .erase_check = default_flash_mem_blank_check,
+ .protect_check = pic32mx_protect_check,
+ .info = pic32mx_info,
+};
Code Review / openocd.git / blobdiff