diff options
Diffstat (limited to 'src/superio/intel/i3100/i3100_early_serial.c')
| -rw-r--r-- | src/superio/intel/i3100/i3100_early_serial.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/superio/intel/i3100/i3100_early_serial.c b/src/superio/intel/i3100/i3100_early_serial.c index a52b852786..74c20c537c 100644 --- a/src/superio/intel/i3100/i3100_early_serial.c +++ b/src/superio/intel/i3100/i3100_early_serial.c @@ -21,8 +21,7 @@ #include <arch/romcc_io.h> #include "i3100.h" -static void i3100_sio_write(u8 port, u8 ldn, u8 index, - u8 value) +static void i3100_sio_write(u8 port, u8 ldn, u8 index, u8 value) { outb(0x07, port); outb(ldn, port + 1); @@ -32,21 +31,21 @@ static void i3100_sio_write(u8 port, u8 ldn, u8 index, static void i3100_enable_serial(u8 port, u8 ldn, u16 iobase) { - /* Enter configuration state */ + /* Enter configuration state. */ outb(0x80, port); outb(0x86, port); - /* Enable serial port */ + /* Enable serial port. */ i3100_sio_write(port, ldn, 0x30, 0x01); - /* Set serial port IO region */ + /* Set serial port I/O region. */ i3100_sio_write(port, ldn, 0x60, (iobase >> 8) & 0xff); i3100_sio_write(port, ldn, 0x61, iobase & 0xff); - /* Enable device interrupts, set UART_CLK predivide to 26 */ + /* Enable device interrupts, set UART_CLK predivide to 26. */ i3100_sio_write(port, 0x00, 0x29, 0x0b); - /* Exit configuration state */ + /* Exit configuration state. */ outb(0x68, port); outb(0x08, port); } |