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Add support for STM32F2xx family 

The F405 rev A uses a wrong CPUID, this patch use the core identifier to make
the distinction.

Tested with:
 - F205
 - F405 rev Z
 - F429

Unfortunately, I do not have any F405 rev A.
This commit is contained in:
Nicolas Schodet 2015-08-17 14:35:11 +02:00
parent ef574b72b1
commit 97cb75145d
1 changed files with 23 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
src/stm32f4.c
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@ -52,6 +52,7 @@ static int stm32f4_flash_write(struct target_flash *f,
uint32_t dest, const void *src, size_t len);
static const char stm32f4_driver_str[] = "STM32F4xx";
static const char stm32f2_driver_str[] = "STM32F2xx";
/* Flash Program ad Erase Controller Register Map */
#define FPEC_BASE 0x40023C00
@ -91,6 +92,7 @@ static const char stm32f4_driver_str[] = "STM32F4xx";
#define SR_EOP 0x01
#define DBGMCU_IDCODE 0xE0042000
#define ARM_CPUID 0xE000ED00
/* This routine is uses word access. Only usable on target voltage >2.7V */
static const uint16_t stm32f4_flash_write_stub[] = {
@ -124,9 +126,23 @@ static void stm32f4_add_flash(target *t,
bool stm32f4_probe(target *t)
{
bool f2 = false;
uint32_t idcode;
idcode = target_mem_read32(t, DBGMCU_IDCODE);
if ((idcode & 0xFFF) == 0x411)
{
/* F405 revision A have a wrong IDCODE, use ARM_CPUID to make the
* distinction with F205. Revision is also wrong (0x2000 instead
* of 0x1000). See F40x/F41x errata. */
uint32_t cpuid = target_mem_read32(t, ARM_CPUID);
if ((cpuid & 0xFFF0) == 0xC240)
idcode = 0x10000413;
else
f2 = true;
}
switch(idcode & 0xFFF) {
case 0x419: /* 427/437 */
/* Second bank for 2M parts. */
@ -134,19 +150,21 @@ bool stm32f4_probe(target *t)
stm32f4_add_flash(t, 0x8110000, 0x10000, 0x10000, 16);
stm32f4_add_flash(t, 0x8120000, 0xE0000, 0x20000, 17);
/* Fall through for stuff common to F40x/F41x */
case 0x411: /* Documented to be 0x413! This is what I read... */
case 0x413: /* F407VGT6 */
case 0x411: /* F205 */
case 0x413: /* F405 */
case 0x421: /* F446 */
case 0x423: /* F401 B/C RM0368 Rev.3 */
case 0x431: /* F411 RM0383 Rev.4 */
case 0x433: /* F401 D/E RM0368 Rev.3 */
t->driver = stm32f4_driver_str;
target_add_ram(t, 0x10000000, 0x10000);
t->driver = f2 ? stm32f2_driver_str : stm32f4_driver_str;
if (!f2)
target_add_ram(t, 0x10000000, 0x10000);
target_add_ram(t, 0x20000000, 0x30000);
stm32f4_add_flash(t, 0x8000000, 0x10000, 0x4000, 0);
stm32f4_add_flash(t, 0x8010000, 0x10000, 0x10000, 4);
stm32f4_add_flash(t, 0x8020000, 0xE0000, 0x20000, 5);
target_add_commands(t, stm32f4_cmd_list, "STM32F4");
target_add_commands(t, stm32f4_cmd_list, f2 ? "STM32F2" :
"STM32F4");
return true;
}
return false;