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#include <arch/romcc_io.h>
#include "pc97317.h"
#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)
{
/* 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 */
outb(0x03, PM_BASE);
outb(inb(PM_BASE + 1) | 0x07, PM_BASE + 1);
/* Wait for the clock to stabilise */
while(!inb(PM_BASE + 1 & 0x80))
;
/* 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);
pnp_set_enable(dev, 1);
}
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