scc(4)/uart(4): Remove obsolete support for Siemens SAB 82532

It's no longer used since 58aa35d42975c298ca0adba705c042596303c9f5
and r357455 respectively.

4 files changed, 0 insertions, 767 deletions

diff --git a/sys/dev/uart/uart.h b/sys/dev/uart/uart.h
index 4ef6af3d901b..ed3b7017d746 100644
--- a/sys/dev/uart/uart.h
+++ b/sys/dev/uart/uart.h
@@ -104,7 +104,6 @@ struct uart_class;
 extern struct uart_class uart_ns8250_class __attribute__((weak));
 extern struct uart_class uart_quicc_class __attribute__((weak));
 extern struct uart_class uart_s3c2410_class __attribute__((weak));
-extern struct uart_class uart_sab82532_class __attribute__((weak));
 extern struct uart_class uart_sbbc_class __attribute__((weak));
 extern struct uart_class uart_z8530_class __attribute__((weak));
 
diff --git a/sys/dev/uart/uart_bus_scc.c b/sys/dev/uart/uart_bus_scc.c
index 6666a35e272e..3b643524825e 100644
--- a/sys/dev/uart/uart_bus_scc.c
+++ b/sys/dev/uart/uart_bus_scc.c
@@ -100,9 +100,6 @@ uart_scc_probe(device_t dev)
 	case SCC_CLASS_QUICC:
 		sc->sc_class = &uart_quicc_class;
 		break;
-	case SCC_CLASS_SAB82532:
-		sc->sc_class = &uart_sab82532_class;
-		break;
 	case SCC_CLASS_Z8530:
 		sc->sc_class = &uart_z8530_class;
 		break;
diff --git a/sys/dev/uart/uart_dev_sab82532.c b/sys/dev/uart/uart_dev_sab82532.c
deleted file mode 100644
index 9cf41be5d7ab..000000000000
--- a/sys/dev/uart/uart_dev_sab82532.c
+++ /dev/null
@@ -1,762 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2003 Marcel Moolenaar
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/conf.h>
-#include <machine/bus.h>
-
-#include <dev/uart/uart.h>
-#include <dev/uart/uart_cpu.h>
-#include <dev/uart/uart_bus.h>
-
-#include <dev/ic/sab82532.h>
-
-#include "uart_if.h"
-
-#define	DEFAULT_RCLK	29491200
-
-/*
- * NOTE: To allow us to read the baudrate divisor from the chip, we
- * copy the value written to the write-only BGR register to an unused
- * read-write register. We use TCR for that.
- */
-
-static int
-sab82532_delay(struct uart_bas *bas)
-{
-	int divisor, m, n;
-	uint8_t bgr, ccr2;
-
-	bgr = uart_getreg(bas, SAB_TCR);
-	ccr2 = uart_getreg(bas, SAB_CCR2);
-	n = (bgr & 0x3f) + 1;
-	m = (bgr >> 6) | ((ccr2 >> 4) & 0xC);
-	divisor = n * (1<<m);
-
-	/* 1/10th the time to transmit 1 character (estimate). */
-	return (16000000 * divisor / bas->rclk);
-}
-
-static int
-sab82532_divisor(int rclk, int baudrate)
-{
-	int act_baud, act_div, divisor;
-	int error, m, n;
-
-	if (baudrate == 0)
-		return (0);
-
-	divisor = (rclk / (baudrate << 3) + 1) >> 1;
-	if (divisor < 2 || divisor >= 1048576)
-		return (0);
-
-	/* Find the best (N+1,M) pair. */
-	for (m = 1; m < 15; m++) {
-		n = divisor / (1<<m);
-		if (n < 1 || n > 63)
-			continue;
-		act_div = n * (1<<m);
-		act_baud = rclk / (act_div << 4);
-
-		/* 10 times error in percent: */
-		error = ((act_baud - baudrate) * 2000 / baudrate + 1) >> 1;
-
-		/* 3.0% maximum error tolerance: */
-		if (error < -30 || error > 30)
-			continue;
-
-		/* Got it. */
-		return ((n - 1) | (m << 6));
-	}
-
-	return (0);
-}
-
-static void
-sab82532_flush(struct uart_bas *bas, int what)
-{
-
-	if (what & UART_FLUSH_TRANSMITTER) {
-		while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-			;
-		uart_setreg(bas, SAB_CMDR, SAB_CMDR_XRES);
-		uart_barrier(bas);
-	}
-	if (what & UART_FLUSH_RECEIVER) {
-		while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-			;
-		uart_setreg(bas, SAB_CMDR, SAB_CMDR_RRES);
-		uart_barrier(bas);
-	}
-}
-
-static int
-sab82532_param(struct uart_bas *bas, int baudrate, int databits, int stopbits,
-    int parity)
-{
-	int divisor;
-	uint8_t ccr2, dafo;
-
-	if (databits >= 8)
-		dafo = SAB_DAFO_CHL_CS8;
-	else if (databits == 7)
-		dafo = SAB_DAFO_CHL_CS7;
-	else if (databits == 6)
-		dafo = SAB_DAFO_CHL_CS6;
-	else
-		dafo = SAB_DAFO_CHL_CS5;
-	if (stopbits > 1)
-		dafo |= SAB_DAFO_STOP;
-	switch (parity) {
-	case UART_PARITY_EVEN:	dafo |= SAB_DAFO_PAR_EVEN; break;
-	case UART_PARITY_MARK:	dafo |= SAB_DAFO_PAR_MARK; break;
-	case UART_PARITY_NONE:	dafo |= SAB_DAFO_PAR_NONE; break;
-	case UART_PARITY_ODD:	dafo |= SAB_DAFO_PAR_ODD; break;
-	case UART_PARITY_SPACE:	dafo |= SAB_DAFO_PAR_SPACE; break;
-	default:		return (EINVAL);
-	}
-
-	/* Set baudrate. */
-	if (baudrate > 0) {
-		divisor = sab82532_divisor(bas->rclk, baudrate);
-		if (divisor == 0)
-			return (EINVAL);
-		uart_setreg(bas, SAB_BGR, divisor & 0xff);
-		uart_barrier(bas);
-		/* Allow reading the (n-1,m) tuple from the chip. */
-		uart_setreg(bas, SAB_TCR, divisor & 0xff);
-		uart_barrier(bas);
-		ccr2 = uart_getreg(bas, SAB_CCR2);
-		ccr2 &= ~(SAB_CCR2_BR9 | SAB_CCR2_BR8);
-		ccr2 |= (divisor >> 2) & (SAB_CCR2_BR9 | SAB_CCR2_BR8);
-		uart_setreg(bas, SAB_CCR2, ccr2);
-		uart_barrier(bas);
-	}
-
-	uart_setreg(bas, SAB_DAFO, dafo);
-	uart_barrier(bas);
-	return (0);
-}
-
-/*
- * Low-level UART interface.
- */
-static int sab82532_probe(struct uart_bas *bas);
-static void sab82532_init(struct uart_bas *bas, int, int, int, int);
-static void sab82532_term(struct uart_bas *bas);
-static void sab82532_putc(struct uart_bas *bas, int);
-static int sab82532_rxready(struct uart_bas *bas);
-static int sab82532_getc(struct uart_bas *bas, struct mtx *);
-
-static struct uart_ops uart_sab82532_ops = {
-	.probe = sab82532_probe,
-	.init = sab82532_init,
-	.term = sab82532_term,
-	.putc = sab82532_putc,
-	.rxready = sab82532_rxready,
-	.getc = sab82532_getc,
-};
-
-static int
-sab82532_probe(struct uart_bas *bas)
-{
-
-	return (0);
-}
-
-static void
-sab82532_init(struct uart_bas *bas, int baudrate, int databits, int stopbits,
-    int parity)
-{
-	uint8_t ccr0, pvr;
-
-	if (bas->rclk == 0)
-		bas->rclk = DEFAULT_RCLK;
-
-	/*
-	 * Set all pins, except the DTR pins (pin 1 and 2) to be inputs.
-	 * Pin 4 is magical, meaning that I don't know what it does, but
-	 * it too has to be set to output.
-	 */
-	uart_setreg(bas, SAB_PCR,
-	    ~(SAB_PVR_DTR_A|SAB_PVR_DTR_B|SAB_PVR_MAGIC));
-	uart_barrier(bas);
-	/* Disable port interrupts. */
-	uart_setreg(bas, SAB_PIM, 0xff);
-	uart_barrier(bas);
-	/* Interrupts are active low. */
-	uart_setreg(bas, SAB_IPC, SAB_IPC_ICPL);
-	uart_barrier(bas);
-	/* Set DTR. */
-	pvr = uart_getreg(bas, SAB_PVR);
-	switch (bas->chan) {
-	case 1:
-		pvr &= ~SAB_PVR_DTR_A;
-		break;
-	case 2:
-		pvr &= ~SAB_PVR_DTR_B;
-		break;
-	}
-	uart_setreg(bas, SAB_PVR, pvr | SAB_PVR_MAGIC);
-	uart_barrier(bas);
-
-	/* power down */
-	uart_setreg(bas, SAB_CCR0, 0);
-	uart_barrier(bas);
-
-	/* set basic configuration */
-	ccr0 = SAB_CCR0_MCE|SAB_CCR0_SC_NRZ|SAB_CCR0_SM_ASYNC;
-	uart_setreg(bas, SAB_CCR0, ccr0);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_CCR1, SAB_CCR1_ODS|SAB_CCR1_BCR|SAB_CCR1_CM_7);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_CCR2, SAB_CCR2_BDF|SAB_CCR2_SSEL|SAB_CCR2_TOE);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_CCR3, 0);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_CCR4, SAB_CCR4_MCK4|SAB_CCR4_EBRG|SAB_CCR4_ICD);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_MODE, SAB_MODE_FCTS|SAB_MODE_RTS|SAB_MODE_RAC);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_RFC, SAB_RFC_DPS|SAB_RFC_RFDF|
-	    SAB_RFC_RFTH_32CHAR);
-	uart_barrier(bas);
-
-	sab82532_param(bas, baudrate, databits, stopbits, parity);
-
-	/* Clear interrupts. */
-	uart_setreg(bas, SAB_IMR0, (unsigned char)~SAB_IMR0_TCD);
-	uart_setreg(bas, SAB_IMR1, 0xff);
-	uart_barrier(bas);
-	uart_getreg(bas, SAB_ISR0);
-	uart_getreg(bas, SAB_ISR1);
-	uart_barrier(bas);
-
-	sab82532_flush(bas, UART_FLUSH_TRANSMITTER|UART_FLUSH_RECEIVER);
-
-	/* Power up. */
-	uart_setreg(bas, SAB_CCR0, ccr0|SAB_CCR0_PU);
-	uart_barrier(bas);
-}
-
-static void
-sab82532_term(struct uart_bas *bas)
-{
-	uint8_t pvr;
-
-	pvr = uart_getreg(bas, SAB_PVR);
-	switch (bas->chan) {
-	case 1:
-		pvr |= SAB_PVR_DTR_A;
-		break;
-	case 2:
-		pvr |= SAB_PVR_DTR_B;
-		break;
-	}
-	uart_setreg(bas, SAB_PVR, pvr);
-	uart_barrier(bas);
-}
-
-static void
-sab82532_putc(struct uart_bas *bas, int c)
-{
-	int delay, limit;
-
-	/* 1/10th the time to transmit 1 character (estimate). */
-	delay = sab82532_delay(bas);
-
-	limit = 20;
-	while ((uart_getreg(bas, SAB_STAR) & SAB_STAR_TEC) && --limit)
-		DELAY(delay);
-	uart_setreg(bas, SAB_TIC, c);
-	limit = 20;
-	while ((uart_getreg(bas, SAB_STAR) & SAB_STAR_TEC) && --limit)
-		DELAY(delay);
-}
-
-static int
-sab82532_rxready(struct uart_bas *bas)
-{
-
-	return ((uart_getreg(bas, SAB_STAR) & SAB_STAR_RFNE) != 0 ? 1 : 0);
-}
-
-static int
-sab82532_getc(struct uart_bas *bas, struct mtx *hwmtx)
-{
-	int c, delay;
-
-	uart_lock(hwmtx);
-
-	/* 1/10th the time to transmit 1 character (estimate). */
-	delay = sab82532_delay(bas);
-
-	while (!(uart_getreg(bas, SAB_STAR) & SAB_STAR_RFNE)) {
-		uart_unlock(hwmtx);
-		DELAY(delay);
-		uart_lock(hwmtx);
-	}
-
-	while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-		;
-	uart_setreg(bas, SAB_CMDR, SAB_CMDR_RFRD);
-	uart_barrier(bas);
-
-	while (!(uart_getreg(bas, SAB_ISR0) & SAB_ISR0_TCD))
-		DELAY(delay);
-
-	c = uart_getreg(bas, SAB_RFIFO);
-	uart_barrier(bas);
-
-	/* Blow away everything left in the FIFO... */
-	while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-		;
-	uart_setreg(bas, SAB_CMDR, SAB_CMDR_RMC);
-	uart_barrier(bas);
-
-	uart_unlock(hwmtx);
-
-	return (c);
-}
-
-/*
- * High-level UART interface.
- */
-struct sab82532_softc {
-	struct uart_softc base;
-};
-
-static int sab82532_bus_attach(struct uart_softc *);
-static int sab82532_bus_detach(struct uart_softc *);
-static int sab82532_bus_flush(struct uart_softc *, int);
-static int sab82532_bus_getsig(struct uart_softc *);
-static int sab82532_bus_ioctl(struct uart_softc *, int, intptr_t);
-static int sab82532_bus_ipend(struct uart_softc *);
-static int sab82532_bus_param(struct uart_softc *, int, int, int, int);
-static int sab82532_bus_probe(struct uart_softc *);
-static int sab82532_bus_receive(struct uart_softc *);
-static int sab82532_bus_setsig(struct uart_softc *, int);
-static int sab82532_bus_transmit(struct uart_softc *);
-static void sab82532_bus_grab(struct uart_softc *);
-static void sab82532_bus_ungrab(struct uart_softc *);
-
-static kobj_method_t sab82532_methods[] = {
-	KOBJMETHOD(uart_attach,		sab82532_bus_attach),
-	KOBJMETHOD(uart_detach,		sab82532_bus_detach),
-	KOBJMETHOD(uart_flush,		sab82532_bus_flush),
-	KOBJMETHOD(uart_getsig,		sab82532_bus_getsig),
-	KOBJMETHOD(uart_ioctl,		sab82532_bus_ioctl),
-	KOBJMETHOD(uart_ipend,		sab82532_bus_ipend),
-	KOBJMETHOD(uart_param,		sab82532_bus_param),
-	KOBJMETHOD(uart_probe,		sab82532_bus_probe),
-	KOBJMETHOD(uart_receive,	sab82532_bus_receive),
-	KOBJMETHOD(uart_setsig,		sab82532_bus_setsig),
-	KOBJMETHOD(uart_transmit,	sab82532_bus_transmit),
-	KOBJMETHOD(uart_grab,		sab82532_bus_grab),
-	KOBJMETHOD(uart_ungrab,		sab82532_bus_ungrab),
-	{ 0, 0 }
-};
-
-struct uart_class uart_sab82532_class = {
-	"sab82532",
-	sab82532_methods,
-	sizeof(struct sab82532_softc),
-	.uc_ops = &uart_sab82532_ops,
-	.uc_range = 64,
-	.uc_rclk = DEFAULT_RCLK,
-	.uc_rshift = 0
-};
-
-#define	SIGCHG(c, i, s, d)				\
-	if (c) {					\
-		i |= (i & s) ? s : s | d;		\
-	} else {					\
-		i = (i & s) ? (i & ~s) | d : i;		\
-	}
-
-static int
-sab82532_bus_attach(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	uint8_t imr0, imr1;
-
-	bas = &sc->sc_bas;
-	if (sc->sc_sysdev == NULL)
-		sab82532_init(bas, 9600, 8, 1, UART_PARITY_NONE);
-
-	imr0 = SAB_IMR0_TCD|SAB_IMR0_TIME|SAB_IMR0_CDSC|SAB_IMR0_RFO|
-	    SAB_IMR0_RPF;
-	uart_setreg(bas, SAB_IMR0, 0xff & ~imr0);
-	imr1 = SAB_IMR1_BRKT|SAB_IMR1_ALLS|SAB_IMR1_CSC;
-	uart_setreg(bas, SAB_IMR1, 0xff & ~imr1);
-	uart_barrier(bas);
-
-	if (sc->sc_sysdev == NULL)
-		sab82532_bus_setsig(sc, SER_DDTR|SER_DRTS);
-	(void)sab82532_bus_getsig(sc);
-	return (0);
-}
-
-static int
-sab82532_bus_detach(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-
-	bas = &sc->sc_bas;
-	uart_setreg(bas, SAB_IMR0, 0xff);
-	uart_setreg(bas, SAB_IMR1, 0xff);
-	uart_barrier(bas);
-	uart_getreg(bas, SAB_ISR0);
-	uart_getreg(bas, SAB_ISR1);
-	uart_barrier(bas);
-	uart_setreg(bas, SAB_CCR0, 0);
-	uart_barrier(bas);
-	return (0);
-}
-
-static int
-sab82532_bus_flush(struct uart_softc *sc, int what)
-{
-
-	uart_lock(sc->sc_hwmtx);
-	sab82532_flush(&sc->sc_bas, what);
-	uart_unlock(sc->sc_hwmtx);
-	return (0);
-}
-
-static int
-sab82532_bus_getsig(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	uint32_t new, old, sig;
-	uint8_t pvr, star, vstr;
-
-	bas = &sc->sc_bas;
-	do {
-		old = sc->sc_hwsig;
-		sig = old;
-		uart_lock(sc->sc_hwmtx);
-		star = uart_getreg(bas, SAB_STAR);
-		SIGCHG(star & SAB_STAR_CTS, sig, SER_CTS, SER_DCTS);
-		vstr = uart_getreg(bas, SAB_VSTR);
-		SIGCHG(vstr & SAB_VSTR_CD, sig, SER_DCD, SER_DDCD);
-		pvr = ~uart_getreg(bas, SAB_PVR);
-		switch (bas->chan) {
-		case 1:
-			pvr &= SAB_PVR_DSR_A;
-			break;
-		case 2:
-			pvr &= SAB_PVR_DSR_B;
-			break;
-		}
-		SIGCHG(pvr, sig, SER_DSR, SER_DDSR);
-		uart_unlock(sc->sc_hwmtx);
-		new = sig & ~SER_MASK_DELTA;
-	} while (!atomic_cmpset_32(&sc->sc_hwsig, old, new));
-	return (sig);
-}
-
-static int
-sab82532_bus_ioctl(struct uart_softc *sc, int request, intptr_t data)
-{
-	struct uart_bas *bas;
-	uint8_t dafo, mode;
-	int error;
-
-	bas = &sc->sc_bas;
-	error = 0;
-	uart_lock(sc->sc_hwmtx);
-	switch (request) {
-	case UART_IOCTL_BREAK:
-		dafo = uart_getreg(bas, SAB_DAFO);
-		if (data)
-			dafo |= SAB_DAFO_XBRK;
-		else
-			dafo &= ~SAB_DAFO_XBRK;
-		uart_setreg(bas, SAB_DAFO, dafo);
-		uart_barrier(bas);
-		break;
-	case UART_IOCTL_IFLOW:
-		mode = uart_getreg(bas, SAB_MODE);
-		if (data) {
-			mode &= ~SAB_MODE_RTS;
-			mode |= SAB_MODE_FRTS;
-		} else {
-			mode |= SAB_MODE_RTS;
-			mode &= ~SAB_MODE_FRTS;
-		}
-		uart_setreg(bas, SAB_MODE, mode);
-		uart_barrier(bas);
-		break;
-	case UART_IOCTL_OFLOW:
-		mode = uart_getreg(bas, SAB_MODE);
-		if (data)
-			mode &= ~SAB_MODE_FCTS;
-		else
-			mode |= SAB_MODE_FCTS;
-		uart_setreg(bas, SAB_MODE, mode);
-		uart_barrier(bas);
-		break;
-	default:
-		error = EINVAL;
-		break;
-	}
-	uart_unlock(sc->sc_hwmtx);
-	return (error);
-}
-
-static int
-sab82532_bus_ipend(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	int ipend;
-	uint8_t isr0, isr1;
-
-	bas = &sc->sc_bas;
-	uart_lock(sc->sc_hwmtx);
-	isr0 = uart_getreg(bas, SAB_ISR0);
-	isr1 = uart_getreg(bas, SAB_ISR1);
-	uart_barrier(bas);
-	if (isr0 & SAB_ISR0_TIME) {
-		while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-			;
-		uart_setreg(bas, SAB_CMDR, SAB_CMDR_RFRD);
-		uart_barrier(bas);
-	}
-	uart_unlock(sc->sc_hwmtx);
-
-	ipend = 0;
-	if (isr1 & SAB_ISR1_BRKT)
-		ipend |= SER_INT_BREAK;
-	if (isr0 & SAB_ISR0_RFO)
-		ipend |= SER_INT_OVERRUN;
-	if (isr0 & (SAB_ISR0_TCD|SAB_ISR0_RPF))
-		ipend |= SER_INT_RXREADY;
-	if ((isr0 & SAB_ISR0_CDSC) || (isr1 & SAB_ISR1_CSC))
-		ipend |= SER_INT_SIGCHG;
-	if (isr1 & SAB_ISR1_ALLS)
-		ipend |= SER_INT_TXIDLE;
-
-	return (ipend);
-}
-
-static int
-sab82532_bus_param(struct uart_softc *sc, int baudrate, int databits,
-    int stopbits, int parity)
-{
-	struct uart_bas *bas;
-	int error;
-
-	bas = &sc->sc_bas;
-	uart_lock(sc->sc_hwmtx);
-	error = sab82532_param(bas, baudrate, databits, stopbits, parity);
-	uart_unlock(sc->sc_hwmtx);
-	return (error);
-}
-
-static int
-sab82532_bus_probe(struct uart_softc *sc)
-{
-	char buf[80];
-	const char *vstr;
-	int error;
-	char ch;
-
-	error = sab82532_probe(&sc->sc_bas);
-	if (error)
-		return (error);
-
-	sc->sc_rxfifosz = 32;
-	sc->sc_txfifosz = 32;
-
-	ch = sc->sc_bas.chan - 1 + 'A';
-
-	switch (uart_getreg(&sc->sc_bas, SAB_VSTR) & SAB_VSTR_VMASK) {
-	case SAB_VSTR_V_1:
-		vstr = "v1";
-		break;
-	case SAB_VSTR_V_2:
-		vstr = "v2";
-		break;
-	case SAB_VSTR_V_32:
-		vstr = "v3.2";
-		sc->sc_hwiflow = 0;	/* CTS doesn't work with RFC:RFDF. */
-		sc->sc_hwoflow = 1;
-		break;
-	default:
-		vstr = "v4?";
-		break;
-	}
-
-	snprintf(buf, sizeof(buf), "SAB 82532 %s, channel %c", vstr, ch);
-	device_set_desc_copy(sc->sc_dev, buf);
-	return (0);
-}
-
-static int
-sab82532_bus_receive(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	int i, rbcl, xc;
-	uint8_t s;
-
-	bas = &sc->sc_bas;
-	uart_lock(sc->sc_hwmtx);
-	if (uart_getreg(bas, SAB_STAR) & SAB_STAR_RFNE) {
-		rbcl = uart_getreg(bas, SAB_RBCL) & 31;
-		if (rbcl == 0)
-			rbcl = 32;
-		for (i = 0; i < rbcl; i += 2) {
-			if (uart_rx_full(sc)) {
-				sc->sc_rxbuf[sc->sc_rxput] = UART_STAT_OVERRUN;
-				break;
-			}
-			xc = uart_getreg(bas, SAB_RFIFO);
-			s = uart_getreg(bas, SAB_RFIFO + 1);
-			if (s & SAB_RSTAT_FE)
-				xc |= UART_STAT_FRAMERR;
-			if (s & SAB_RSTAT_PE)
-				xc |= UART_STAT_PARERR;
-			uart_rx_put(sc, xc);
-		}
-	}
-
-	while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-		;
-	uart_setreg(bas, SAB_CMDR, SAB_CMDR_RMC);
-	uart_barrier(bas);
-	uart_unlock(sc->sc_hwmtx);
-	return (0);
-}
-
-static int
-sab82532_bus_setsig(struct uart_softc *sc, int sig)
-{
-	struct uart_bas *bas;
-	uint32_t new, old;
-	uint8_t mode, pvr;
-
-	bas = &sc->sc_bas;
-	do {
-		old = sc->sc_hwsig;
-		new = old;
-		if (sig & SER_DDTR) {
-			SIGCHG(sig & SER_DTR, new, SER_DTR,
-			    SER_DDTR);
-		}
-		if (sig & SER_DRTS) {
-			SIGCHG(sig & SER_RTS, new, SER_RTS,
-			    SER_DRTS);
-		}
-	} while (!atomic_cmpset_32(&sc->sc_hwsig, old, new));
-
-	uart_lock(sc->sc_hwmtx);
-	/* Set DTR pin. */
-	pvr = uart_getreg(bas, SAB_PVR);
-	switch (bas->chan) {
-	case 1:
-		if (new & SER_DTR)
-			pvr &= ~SAB_PVR_DTR_A;
-		else
-			pvr |= SAB_PVR_DTR_A;
-		break;
-	case 2:
-		if (new & SER_DTR)
-			pvr &= ~SAB_PVR_DTR_B;
-		else
-			pvr |= SAB_PVR_DTR_B;
-		break;
-	}
-	uart_setreg(bas, SAB_PVR, pvr);
-
-	/* Set RTS pin. */
-	mode = uart_getreg(bas, SAB_MODE);
-	if (new & SER_RTS)
-		mode &= ~SAB_MODE_FRTS;
-	else
-		mode |= SAB_MODE_FRTS;
-	uart_setreg(bas, SAB_MODE, mode);
-	uart_barrier(bas);
-	uart_unlock(sc->sc_hwmtx);
-	return (0);
-}
-
-static int
-sab82532_bus_transmit(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	int i;
-
-	bas = &sc->sc_bas;
-	uart_lock(sc->sc_hwmtx);
-	while (!(uart_getreg(bas, SAB_STAR) & SAB_STAR_XFW))
-		;
-	for (i = 0; i < sc->sc_txdatasz; i++)
-		uart_setreg(bas, SAB_XFIFO + i, sc->sc_txbuf[i]);
-	uart_barrier(bas);
-	while (uart_getreg(bas, SAB_STAR) & SAB_STAR_CEC)
-		;
-	uart_setreg(bas, SAB_CMDR, SAB_CMDR_XF);
-	sc->sc_txbusy = 1;
-	uart_unlock(sc->sc_hwmtx);
-	return (0);
-}
-
-static void
-sab82532_bus_grab(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	uint8_t imr0;
-
-	bas = &sc->sc_bas;
-	imr0 = SAB_IMR0_TIME|SAB_IMR0_CDSC|SAB_IMR0_RFO; /* No TCD or RPF */
-	uart_lock(sc->sc_hwmtx);
-	uart_setreg(bas, SAB_IMR0, 0xff & ~imr0);
-	uart_barrier(bas);
-	uart_unlock(sc->sc_hwmtx);
-}
-
-static void
-sab82532_bus_ungrab(struct uart_softc *sc)
-{
-	struct uart_bas *bas;
-	uint8_t imr0;
-
-	bas = &sc->sc_bas;
-	imr0 = SAB_IMR0_TCD|SAB_IMR0_TIME|SAB_IMR0_CDSC|SAB_IMR0_RFO|
-	    SAB_IMR0_RPF;
-	uart_lock(sc->sc_hwmtx);
-	uart_setreg(bas, SAB_IMR0, 0xff & ~imr0);
-	uart_barrier(bas);
-	uart_unlock(sc->sc_hwmtx);
-}
diff --git a/sys/dev/uart/uart_subr.c b/sys/dev/uart/uart_subr.c
index 2dd10d9f4a2d..96d7735ea0ed 100644
--- a/sys/dev/uart/uart_subr.c
+++ b/sys/dev/uart/uart_subr.c
@@ -53,7 +53,6 @@ __FBSDID("$FreeBSD$");
 
 static struct uart_class *uart_classes[] = {
 	&uart_ns8250_class,
-	&uart_sab82532_class,
 	&uart_z8530_class,
 #if defined(__arm__)
 	&uart_s3c2410_class,