return -1;
}
+ if (params->flash_type == FLASH_TYPE_UNKNOWN) {
+ WLOG("Invalid flash type, please check device declaration\n");
+ return -1;
+ }
+
+
// These are fixed...
sl->flash_base = STM32_FLASH_BASE;
sl->sram_base = STM32_SRAM_BASE;
static const uint8_t loader_code_stm32l[] = {
/* openocd.git/contrib/loaders/flash/stm32lx.S
- r0, input, dest addr
- r1, input, source addr
+ r0, input, source addr
+ r1, input, dest addr
r2, input, word count
- r3, output, word count
+ r2, output, remaining word count
*/
- 0x00, 0x23,
0x04, 0xe0,
- 0x51, 0xf8, 0x04, 0xcb,
- 0x40, 0xf8, 0x04, 0xcb,
- 0x01, 0x33,
+ 0x50, 0xf8, 0x04, 0xcb,
+ 0x41, 0xf8, 0x04, 0xcb,
+ 0x01, 0x3a,
- 0x93, 0x42,
+ 0x00, 0x2a,
0xf8, 0xd3,
0x00, 0xbe
};
static const uint8_t loader_code_stm32l0[] = {
/*
- r0, input, dest addr
- r1, input, source addr
+ r0, input, source addr
+ r1, input, dest addr
r2, input, word count
- r3, output, word count
+ r2, output, remaining word count
*/
- 0x00, 0x23,
0x04, 0xe0,
- 0x0c, 0x68,
- 0x04, 0x60,
- 0x01, 0x33,
+ 0x04, 0x68,
+ 0x0c, 0x60,
+ 0x01, 0x3a,
0x04, 0x31,
0x04, 0x30,
- 0x93, 0x42,
+ 0x00, 0x2a,
0xf8, 0xd3,
0x00, 0xbe
};
0xfb, 0xd1, // bne.n <wait>
0x00, 0xf1, 0x08, 0x00, // add.w r0, r0, #8
0x01, 0xf1, 0x08, 0x01, // add.w r1, r1, #8
- 0xa2, 0xf1, 0x02, 0x02, // add.w r2, r2, #2
+ 0xa2, 0xf1, 0x01, 0x02, // sub.w r2, r2, #1
0xef, 0xe7, // b.n <next>
0x00, 0xbe, // done: bkpt 0x0000
0x00, 0x20, 0x02, 0x40 // flash_base: .word 0x40022000
int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, const uint8_t* buf, size_t size) {
reg rr;
- int target_reg, source_reg, i = 0;
- size_t count;
+ int i = 0;
+ size_t count = 0;
DLOG("Running flash loader, write address:%#x, size: %zd\n", target, size);
// FIXME This can never return -1
return -1;
}
- if (sl->flash_type == FLASH_TYPE_L0) {
- count = size / sizeof(uint32_t);
- if (size % sizeof(uint32_t))
- ++count;
- target_reg = 0;
- source_reg = 1;
- } else if (sl->flash_type == FLASH_TYPE_F0) {
+ if (sl->flash_type == FLASH_TYPE_F0) {
count = size / sizeof(uint16_t);
if (size % sizeof(uint16_t))
++count;
- target_reg = 1;
- source_reg = 0;
- } else if (sl->flash_type == FLASH_TYPE_F4 || sl->flash_type == FLASH_TYPE_L4) {
+ } else if (sl->flash_type == FLASH_TYPE_F4 || sl->flash_type == FLASH_TYPE_L0) {
count = size / sizeof(uint32_t);
if (size % sizeof(uint32_t))
++count;
- if (sl->chip_id == STM32_CHIPID_L4) {
- if (count % 2)
- ++count;
- }
- target_reg = 1;
- source_reg = 0;
- } else {
- fprintf(stderr, "unknown coreid 0x%x, don't know what flash loader to use\n", sl->core_id);
- return -1;
+ } else if (sl->flash_type == FLASH_TYPE_L4) {
+ count = size / sizeof(uint64_t);
+ if (size % sizeof(uint64_t))
+ ++count;
}
/* setup core */
- stlink_write_reg(sl, fl->buf_addr, source_reg); /* source */
- stlink_write_reg(sl, target, target_reg); /* target */
+ stlink_write_reg(sl, fl->buf_addr, 0); /* source */
+ stlink_write_reg(sl, target, 1); /* target */
stlink_write_reg(sl, count, 2); /* count */
stlink_write_reg(sl, 0, 3); /* flash bank 0 (input), only used on F0, but armless fopr others */
stlink_write_reg(sl, fl->loader_addr, 15); /* pc register */
return -1;
}
- stlink_read_all_regs(sl, &rr);
-
/* check written byte count */
- if (sl->flash_type == FLASH_TYPE_L0) {
- if (rr.r[3] != count) {
- fprintf(stderr, "write error, count == %u\n", rr.r[3]);
- return -1;
- }
- } else {
- if (rr.r[2] != 0) {
- fprintf(stderr, "write error, count == %u\n", rr.r[2]);
- return -1;
- }
+ stlink_read_reg(sl, 2, &rr);
+ if (rr.r[2] != 0) {
+ fprintf(stderr, "write error, count == %u\n", rr.r[2]);
+ return -1;
}
return 0;