stm32: Add option to disable SWD on GigaDevice STM32F103 clones

Tested by @FotoFieber. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2021-11-24 11:15:22 -05:00
parent 790d48b46c
commit 2b7d0bba42
2 changed files with 17 additions and 2 deletions
--- a/src/stm32/stm32f1.c
+++ b/src/stm32/stm32f1.c
@@ -257,8 +257,13 @@ armcm_main(void)

    // Disable JTAG to free PA15, PB3, PB4
    enable_pclock(AFIO_BASE);
-    stm32f1_alternative_remap(AFIO_MAPR_SWJ_CFG_Msk,
-                              AFIO_MAPR_SWJ_CFG_JTAGDISABLE);
+    if (CONFIG_STM32F103GD_DISABLE_SWD)
+        // GigaDevice clone can't enable PA13/PA14 at runtime - enable here
+        stm32f1_alternative_remap(AFIO_MAPR_SWJ_CFG_Msk,
+                                  AFIO_MAPR_SWJ_CFG_DISABLE);
+    else
+        stm32f1_alternative_remap(AFIO_MAPR_SWJ_CFG_Msk,
+                                  AFIO_MAPR_SWJ_CFG_JTAGDISABLE);

    sched_main();
 }