X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstmf0%2Fao_boot_pin.c;h=43212dfd300c0024227bf5fe0e15c80dd3f0d00e;hb=f495f2a479569d839f4efe8f115d51ae162edcfd;hp=e825b618299bbe416e27153cfa0b331955d5e12b;hpb=02f03df6d089cafae99f8ce15dcbd87f6e78d749;p=fw%2Faltos

diff --git a/src/stmf0/ao_boot_pin.c b/src/stmf0/ao_boot_pin.c
index e825b618..43212dfd 100644
--- a/src/stmf0/ao_boot_pin.c
+++ b/src/stmf0/ao_boot_pin.c
@@ -3,7 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -19,7 +20,8 @@
 #include <ao_boot.h>
 #include <ao_exti.h>
 
-void
+#if AO_BOOT_PIN
+int
 ao_boot_check_pin(void)
 {
 	uint16_t v;
@@ -40,7 +42,7 @@ ao_boot_check_pin(void)
 	/* Reset the chip to turn off the port and the power interface clock */
 	ao_gpio_set_mode(&AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, 0);
 	ao_disable_port(&AO_BOOT_APPLICATION_GPIO);
-	stm_rcc.apb1enr &= ~(1 << STM_RCC_APB1ENR_PWREN);
-	if (v == AO_BOOT_APPLICATION_VALUE)
-		ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+	stm_rcc.apb1enr &= ~(1UL << STM_RCC_APB1ENR_PWREN);
+	return v == AO_BOOT_APPLICATION_VALUE;
 }
+#endif