freebsd-dev/sys/arm/s3c2xx0/uart_bus_s3c2410.c
Warner Losh 30e980f2d1 Add support for the Samsung S3C2xx0 family of ARM SoCs written by
Andrew Turner.  The kernel supports the LN2410SBC evaluation board,
and likely others.  These parts (or similar ones) are in some open
hardware designs for phones.

Submitted by:	Andrew Turner
2010-03-20 03:39:35 +00:00

60 lines
1.4 KiB
C

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
#include <dev/uart/uart_cpu.h>
#include <arm/s3c2xx0/s3c24x0reg.h>
#include "uart_if.h"
static int uart_s3c2410_probe(device_t dev);
static device_method_t uart_s3c2410_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uart_s3c2410_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
{ 0, 0 }
};
static driver_t uart_s3c2410_driver = {
uart_driver_name,
uart_s3c2410_methods,
sizeof(struct uart_softc),
};
extern struct uart_class uart_s3c2410_class;
extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
static int
uart_s3c2410_probe(device_t dev)
{
struct uart_devinfo *sysdev;
struct uart_softc *sc;
int unit;
sc = device_get_softc(dev);
sc->sc_class = &uart_s3c2410_class;
unit = device_get_unit(dev);
sysdev = SLIST_FIRST(&uart_sysdevs);
if (S3C24X0_UART_BASE(unit) == sysdev->bas.bsh) {
sc->sc_sysdev = sysdev;
bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
}
return(uart_bus_probe(dev, 0, 0, 0, unit));
}
DRIVER_MODULE(uart, s3c24x0, uart_s3c2410_driver, uart_devclass, 0, 0);