* RM0394 devices have a single bank only.
*
* RM0432 devices have single and dual bank operating modes.
- * The FLASH size is 1Mbyte or 2Mbyte.
+ * - for STM32L4R/Sxx the FLASH size is 2Mbyte or 1Mbyte.
+ * - for STM32L4P/Q5x the FLASH size is 1Mbyte or 512Kbyte.
* Bank page (sector) size is 4Kbyte (dual mode) or 8Kbyte (single mode).
*
* Bank mode is controlled by two different bits in option bytes register.
- * In 2M FLASH devices bit 22 (DBANK) controls Dual Bank mode.
- * In 1M FLASH devices bit 21 (DB1M) controls Dual Bank mode.
+ * - for STM32L4R/Sxx
+ * In 2M FLASH devices bit 22 (DBANK) controls Dual Bank mode.
+ * In 1M FLASH devices bit 21 (DB1M) controls Dual Bank mode.
+ * - for STM32L4P5/Q5x
+ * In 1M FLASH devices bit 22 (DBANK) controls Dual Bank mode.
+ * In 512K FLASH devices bit 21 (DB512K) controls Dual Bank mode.
*
*/
{ 0x1000, "A" }, { 0x1001, "Z" }, { 0x1003, "Y" }, { 0x100F, "W" },
};
+static const struct stm32l4_rev stm32_471_revs[] = {
+ { 0x1000, "1" },
+};
+
static const struct stm32l4_rev stm32_495_revs[] = {
{ 0x2001, "2.1" },
};
.flash_regs_base = 0x40022000,
.fsize_addr = 0x1FFF75E0,
},
+ {
+ .id = 0x471,
+ .revs = stm32_471_revs,
+ .num_revs = ARRAY_SIZE(stm32_471_revs),
+ .device_str = "STM32L4P5/L4Q5x",
+ .max_flash_size_kb = 1024,
+ .has_dual_bank = true,
+ .flash_regs_base = 0x40022000,
+ .fsize_addr = 0x1FFF75E0,
+ },
{
.id = 0x495,
.revs = stm32_495_revs,
stm32l4_info->bank1_sectors = num_pages;
break;
case 0x470:
+ case 0x471:
/* STM32L4R/S can be single/dual bank:
* if size = 2M check DBANK bit(22)
* if size = 1M check DB1M bit(21)
+ * STM32L4P/Q can be single/dual bank
+ * if size = 1M check DBANK bit(22)
+ * if size = 512K check DB512K bit(21)
* in single bank configuration the page size is 8K
* else (dual bank) the page size is 4K without gap between banks
*/
page_size = 8192;
num_pages = flash_size_in_kb / 8;
stm32l4_info->bank1_sectors = num_pages;
- if ((flash_size_in_kb == 2048 && (options & BIT(22))) ||
- (flash_size_in_kb == 1024 && (options & BIT(21)))) {
+ const bool use_dbank_bit = flash_size_in_kb == part_info->max_flash_size_kb;
+ if ((use_dbank_bit && (options & BIT(22))) ||
+ (!use_dbank_bit && (options & BIT(21)))) {
stm32l4_info->dual_bank_mode = true;
page_size = 4096;
num_pages = flash_size_in_kb / 4;