diff options
| -rw-r--r-- | payloads/libpayload/drivers/serial.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/payloads/libpayload/drivers/serial.c b/payloads/libpayload/drivers/serial.c index 4ae3e26dbe..df0f2e3438 100644 --- a/payloads/libpayload/drivers/serial.c +++ b/payloads/libpayload/drivers/serial.c @@ -39,18 +39,22 @@ static int serial_is_mem_mapped = 0; static uint8_t serial_read_reg(int offset) { - if (serial_is_mem_mapped) - return readb(MEMBASE + offset); - else +#ifdef CONFIG_IO_ADDRESS_SPACE + if (!serial_is_mem_mapped) return inb(IOBASE + offset); + else +#endif + return readb(MEMBASE + offset); } static void serial_write_reg(uint8_t val, int offset) { - if (serial_is_mem_mapped) - writeb(val, MEMBASE + offset); - else +#ifdef CONFIG_IO_ADDRESS_SPACE + if (!serial_is_mem_mapped) outb(val, IOBASE + offset); + else +#endif + writeb(val, MEMBASE + offset); } #ifdef CONFIG_SERIAL_SET_SPEED |