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flash/nor/at91samd: Use 32-bit register writes for ST-Link compat
[openocd.git] / src / flash / nor / at91samd.c
diff --git a/src/flash/nor/at91samd.c b/src/flash/nor/at91samd.c
index a0252a2767afd368213bfe9db31102aa31d32016..f213444d1f3d889db6903d101b03107555dce212 100644 (file)
--- a/src/flash/nor/at91samd.c
+++ b/src/flash/nor/at91samd.c
@@ -543,7 +543,8 @@ static int samd_issue_nvmctrl_command(struct target *target, uint16_t cmd)
        }
 
        /* Issue the NVM command */
-       res = target_write_u16(target,
+       /* 32-bit write is used to ensure atomic operation on ST-Link */
+       res = target_write_u32(target,
                        SAMD_NVMCTRL + SAMD_NVMCTRL_CTRLA, SAMD_NVM_CMD(cmd));
        if (res != ERROR_OK)
                return res;
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