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use system's real PCLK frequency instead of a compile time constant for 

baudrate divisor setup.
This commit is contained in:
bsh 2003-05-13 06:29:53 +00:00
parent 2b33d23a8c
commit b4e06de16e
1 changed files with 15 additions and 20 deletions
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31
sys/arch/arm/s3c2xx0/sscom_s3c2800.c
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@ -1,4 +1,4 @@
/* $NetBSD: sscom_s3c2800.c,v 1.2 2003/05/12 07:49:10 bsh Exp $ */ /* $NetBSD: sscom_s3c2800.c,v 1.3 2003/05/13 06:29:53 bsh Exp $ */
/* /*
* Copyright (c) 2002 Fujitsu Component Limited * Copyright (c) 2002 Fujitsu Component Limited
@ -63,10 +63,6 @@
#include <arm/s3c2xx0/sscom_var.h> #include <arm/s3c2xx0/sscom_var.h>
#include <sys/termios.h> #include <sys/termios.h>
#ifndef SSCOM_FREQ
#define SSCOM_FREQ 50000000
#endif
static int sscom_match(struct device *, struct cfdata *, void *); static int sscom_match(struct device *, struct cfdata *, void *);
static void sscom_attach(struct device *, struct device *, void *); static void sscom_attach(struct device *, struct device *, void *);
@ -93,7 +89,7 @@ const struct sscom_uart_info s3c2800_uart_config[] = {
}; };
static int static int
sscom_match(struct device * parent, struct cfdata * cf, void *aux) sscom_match(struct device *parent, struct cfdata *cf, void *aux)
{ {
struct s3c2xx0_attach_args *sa = aux; struct s3c2xx0_attach_args *sa = aux;
int unit = sa->sa_index; int unit = sa->sa_index;
@ -101,7 +97,6 @@ sscom_match(struct device * parent, struct cfdata * cf, void *aux)
return unit == 0 || unit == 1; return unit == 0 || unit == 1;
} }
#if 0
int tx_int(void *); int tx_int(void *);
int rx_int(void *); int rx_int(void *);
int err_int(void *); int err_int(void *);
@ -123,39 +118,38 @@ err_int(void *arg)
{ {
return sscomintr(arg); return sscomintr(arg);
} }
#endif
static void static void
sscom_attach(struct device * parent, struct device * self, void *aux) sscom_attach(struct device *parent, struct device *self, void *aux)
{ {
struct sscom_softc *sc = (struct sscom_softc *) self; struct sscom_softc *sc = (struct sscom_softc *)self;
struct s3c2xx0_attach_args *sa = aux; struct s3c2xx0_attach_args *sa = aux;
int unit = sa->sa_index; int unit = sa->sa_index;
bus_addr_t iobase = s3c2800_uart_config[unit].iobase; bus_addr_t iobase = s3c2800_uart_config[unit].iobase;
printf( ": UART%d addr=%lx", sa->sa_index, iobase );
printf(": UART%d addr=%lx", sa->sa_index, iobase);
sc->sc_iot = s3c2xx0_softc->sc_iot; sc->sc_iot = s3c2xx0_softc->sc_iot;
sc->sc_unit = unit; sc->sc_unit = unit;
sc->sc_frequency = SSCOM_FREQ; sc->sc_frequency = s3c2xx0_softc->sc_pclk;
sc->sc_rx_irqno = S3C2800_INT_RXD0 + sa->sa_index; sc->sc_rx_irqno = S3C2800_INT_RXD0 + sa->sa_index;
sc->sc_tx_irqno = S3C2800_INT_TXD0 + sa->sa_index; sc->sc_tx_irqno = S3C2800_INT_TXD0 + sa->sa_index;
if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) { if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) {
printf(": failed to map registers\n"); printf( ": failed to map registers\n" );
return; return;
} }
printf("\n"); printf("\n");
s3c2800_intr_establish(s3c2800_uart_config[unit].tx_int, s3c2800_intr_establish(s3c2800_uart_config[unit].tx_int,
IPL_SERIAL, IST_LEVEL, sscomintr, sc); IPL_SERIAL, IST_LEVEL, tx_int, sc);
s3c2800_intr_establish(s3c2800_uart_config[unit].rx_int, s3c2800_intr_establish(s3c2800_uart_config[unit].rx_int,
IPL_SERIAL, IST_LEVEL, sscomintr, sc); IPL_SERIAL, IST_LEVEL, rx_int, sc);
s3c2800_intr_establish(s3c2800_uart_config[unit].err_int, s3c2800_intr_establish(s3c2800_uart_config[unit].err_int,
IPL_SERIAL, IST_LEVEL, sscomintr, sc); IPL_SERIAL, IST_LEVEL, err_int, sc);
sscom_disable_txrxint(sc); sscom_disable_txrxint(sc);
sscom_attach_subr(sc); sscom_attach_subr(sc);
@ -170,6 +164,7 @@ s3c2800_sscom_cnattach(bus_space_tag_t iot, int unit, int rate,
return sscom_cnattach(iot, s3c2800_uart_config + unit, return sscom_cnattach(iot, s3c2800_uart_config + unit,
rate, frequency, cflag); rate, frequency, cflag);
} }
#ifdef KGDB #ifdef KGDB
int int
s3c2800_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate, s3c2800_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate,