diff options
Diffstat (limited to 'src/drivers/uart.cc')
| -rw-r--r-- | src/drivers/uart.cc | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/drivers/uart.cc b/src/drivers/uart.cc index a81ba3f..367f442 100644 --- a/src/drivers/uart.cc +++ b/src/drivers/uart.cc @@ -1,7 +1,8 @@ #include "drivers/uart.h" #include "common/types.h" +#include "kernel/config.h" -#define UART0_BASE 0x10000000L +// #define UART0_BASE 0x10000000L #define UART_RBR 0x00 // Receiver Buffer Register (Read) #define UART_THR 0x00 // Transmitter Holding Register (Write) @@ -16,11 +17,15 @@ namespace Drivers{ inline volatile uint8_t ®(uint32_t offset) { - return *reinterpret_cast<volatile uint8_t *>(UART0_BASE + offset); + return *reinterpret_cast<volatile uint8_t *>(g_uart_base + offset); } void uart_init() { + + if (g_uart_base == 0) + return; + reg(UART_IER) = 0x00; reg(UART_LCR) = 0x80; |