diff options
Diffstat (limited to 'src/superio/nsc/pc97317/pc97317_early_serial.c')
| -rw-r--r-- | src/superio/nsc/pc97317/pc97317_early_serial.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/src/superio/nsc/pc97317/pc97317_early_serial.c b/src/superio/nsc/pc97317/pc97317_early_serial.c index 175d490f1b..00a92b3be6 100644 --- a/src/superio/nsc/pc97317/pc97317_early_serial.c +++ b/src/superio/nsc/pc97317/pc97317_early_serial.c @@ -24,28 +24,24 @@ #define PM_DEV PNP_DEV(0x2e, PC97317_PM) #define PM_BASE 0xe8 -/* The pc97317 needs clocks to be set up before the serial port will operate */ - -static void pc97317_enable_serial(device_t dev, unsigned iobase) +/* The PC97317 needs clocks to be set up before the serial port will operate. */ +static void pc97317_enable_serial(device_t dev, u16 iobase) { - /* Set base address of power management unit */ - + /* Set base address of power management unit. */ pnp_set_logical_device(PM_DEV); pnp_set_enable(dev, 0); pnp_set_iobase(dev, PNP_IDX_IO0, PM_BASE); pnp_set_enable(dev, 1); - /* Use on-chip clock multiplier */ - + /* Use on-chip clock multiplier. */ outb(0x03, PM_BASE); outb(inb(PM_BASE + 1) | 0x07, PM_BASE + 1); - /* Wait for the clock to stabilise */ + /* Wait for the clock to stabilise. */ while(!(inb(PM_BASE + 1) & 0x80)) ; - /* Set the base address of the port */ - + /* Set the base address of the port. */ pnp_set_logical_device(dev); pnp_set_enable(dev, 0); pnp_set_iobase(dev, PNP_IDX_IO0, iobase); |