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-rw-r--r--arch/arc/include/asm/serial.h23
1 files changed, 5 insertions, 18 deletions
diff --git a/arch/arc/include/asm/serial.h b/arch/arc/include/asm/serial.h
index 602b0970a764..744a6ae15754 100644
--- a/arch/arc/include/asm/serial.h
+++ b/arch/arc/include/asm/serial.h
@@ -10,26 +10,13 @@
#define _ASM_ARC_SERIAL_H
/*
- * early-8250 requires BASE_BAUD to be defined and includes this header.
- * We put in a typical value:
- * (core clk / 16) - i.e. UART samples 16 times per sec.
- * Athough in multi-platform-image this might not work, specially if the
- * clk driving the UART is different.
- * We can't use DeviceTree as this is typically for early serial.
+ * early 8250 (now earlycon) requires BASE_BAUD to be defined in this header.
+ * However to still determine it dynamically (for multi-platform images)
+ * we do this in a helper by parsing the FDT early
*/
-#include <asm/clk.h>
+extern unsigned int __init arc_early_base_baud(void);
-#define BASE_BAUD (arc_get_core_freq() / 16)
-
-/*
- * This is definitely going to break early 8250 consoles on multi-platform
- * images but hey, it won't add any code complexity for a debug feature of
- * one broken driver.
- */
-#ifdef CONFIG_ARC_PLAT_TB10X
-#undef BASE_BAUD
-#define BASE_BAUD (arc_get_core_freq() / 16 / 3)
-#endif
+#define BASE_BAUD arc_early_base_baud()
#endif /* _ASM_ARC_SERIAL_H */