flash/nor/stm32f1x: Add support for GD32E23x

[openocd.git] / src / flash / nor / stm32f1x.c

diff --git a/src/flash/nor/stm32f1x.c b/src/flash/nor/stm32f1x.c
index 3bda9bc20b5b414834881d1590165ad8febd3546..6744779e97c0f5b67f243a011287af243f661287 100644 (file)
--- a/src/flash/nor/stm32f1x.c
+++ b/src/flash/nor/stm32f1x.c
@@ -640,6 +640,9 @@ static int stm32x_get_device_id(struct flash_bank *bank, uint32_t *device_id)
        case CORTEX_M4_PARTNO: /* STM32F3x devices */
                device_id_register = 0xE0042000;
                break;
+       case CORTEX_M23_PARTNO: /* GD32E23x devices */
+               device_id_register = 0x40015800;
+               break;
        default:
                LOG_ERROR("Cannot identify target as a stm32x");
                return ERROR_FAIL;
@@ -674,6 +677,9 @@ static int stm32x_get_flash_size(struct flash_bank *bank, uint16_t *flash_size_i
        case CORTEX_M4_PARTNO: /* STM32F3x devices */
                flash_size_reg = 0x1FFFF7CC;
                break;
+       case CORTEX_M23_PARTNO: /* GD32E23x devices */
+               flash_size_reg = 0x1FFFF7E0;
+               break;
        default:
                LOG_ERROR("Cannot identify target as a stm32x");
                return ERROR_FAIL;
@@ -756,8 +762,8 @@ static int stm32x_probe(struct flash_bank *bank)
                page_size = 1024;
                stm32x_info->ppage_size = 4;
                max_flash_size_in_kb = 128;
-               /* GigaDevice GD32F1x0 & GD32F3x0 series devices share DEV_ID
-                  with STM32F101/2/3 medium-density line,
+               /* GigaDevice GD32F1x0 & GD32F3x0 & GD32E23x series devices
+                  share DEV_ID with STM32F101/2/3 medium-density line,
                   however they use a REV_ID different from any STM32 device.
                   The main difference is another offset of user option bits
                   (like WDG_SW, nRST_STOP, nRST_STDBY) in option byte register
@@ -774,6 +780,11 @@ static int stm32x_probe(struct flash_bank *bank)
                        stm32x_info->user_data_offset = 16;
                        stm32x_info->option_offset = 6;
                        break;
+               case 0x1909: /* gd32e23x */
+                       stm32x_info->user_data_offset = 16;
+                       stm32x_info->option_offset = 6;
+                       max_flash_size_in_kb = 64;
+                       break;
                }
                break;
        case 0x412: /* stm32f1x low-density */
@@ -984,6 +995,10 @@ static int get_stm32x_info(struct flash_bank *bank, struct command_invocation *c
                        device_str = "GD32F3x0";
                        break;
 
+               case 0x1909: /* gd32e23x */
+                       device_str = "GD32E23x";
+                       break;
+
                case 0x2000:
                        rev_str = "B";
                        break;