stm32f4: Add support for external 8Mhz crystal

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-07-25 23:50:12 -04:00
parent 658088b753
commit f3d7287a28
2 changed files with 23 additions and 5 deletions
--- a/src/stm32f4/Kconfig
+++ b/src/stm32f4/Kconfig
@@ -15,6 +15,14 @@ config CLOCK_FREQ
    int
    default 180000000

+choice
+    prompt "Clock Reference"
+    config STM32F4_CLOCK_REF_8M
+        bool "8Mhz crystal"
+    config STM32F4_CLOCK_REF_INTERNAL
+        bool "Internal clock"
+endchoice
+
 config SERIAL
    bool
    default y