serial experiment works

[rpikern] / src / uart.h

diff --git a/src/uart.h b/src/uart.h
index e330ae4..0c46691 100644 (file)
--- a/src/uart.h
+++ b/src/uart.h
@@ -4,7 +4,7 @@
 #include "config.h"
 
 #define UART0_BASE             (IO_BASE | 0x201000)
-#define UART0_REG(x)   *(volatile uint32_t*)(UART0_BASE | (x))
+#define UART0_REG(x)   (*(volatile uint32_t*)(UART0_BASE | (x)))
 
 #define REG_DR         UART0_REG(0x00) /* data register */
 #define REG_RSRECR     UART0_REG(0x04) /* receive status & error clear */