Drivers for the FORCE CPU-5V:

o fga5000 vme-sbus bridge
o system config registers
o flash memory
and daadio VME board driver

1 files changed, 199 insertions, 0 deletions

diff --git a/sys/arch/sparc/dev/flash.c b/sys/arch/sparc/dev/flash.c
new file mode 100644
index 00000000000..e7b68f459a0
--- /dev/null
+++ b/sys/arch/sparc/dev/flash.c
@@ -0,0 +1,199 @@
+/*	$OpenBSD: flash.c,v 1.1 1999/07/23 19:11:26 jason Exp $	*/
+
+/*
+ * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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.
+ */
+
+/*
+ * Driver for the flash memory found on FORCE CPU-5V boards.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/syslog.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#include <machine/autoconf.h>
+#include <sparc/cpu.h>
+#include <sparc/sparc/cpuvar.h>
+
+int	flashmatch	__P((struct device *, void *, void *));
+void	flashattach	__P((struct device *, struct device *, void *));
+
+int	flashopen	__P((dev_t, int, int, struct proc *p));
+int	flashclose	__P((dev_t, int, int, struct proc *p));
+int	flashread	__P((dev_t, struct uio *, int));
+int	flashwrite	__P((dev_t, struct uio *, int));
+int	flashrw		__P((dev_t, struct uio *, int));
+int	flashioctl	__P((dev_t, u_long, caddr_t, int, struct proc *));
+
+/*
+ * We see the flash-memory in 512k windows.  The current window is
+ * changed in the sysconfig registers (FMPCR1), see scf.c.
+ */
+#define	FLASH_REGS_SIZE		0x80000
+
+struct flash_regs {
+	u_int8_t		regs[0x80000];
+};
+
+struct flash_softc {
+	struct device		sc_dv;
+	struct flash_regs	*sc_regs;
+	int			sc_node;
+	int			sc_open;
+};
+
+struct cfattach flash_ca = {
+	sizeof (struct flash_softc), flashmatch, flashattach
+};
+
+struct cfdriver flash_cd = {
+	NULL, "flash", DV_IFNET
+};
+
+int
+flashmatch(parent, vcf, aux)
+	struct device *parent;
+	void *vcf, *aux;
+{
+	struct confargs *ca = aux;
+	register struct romaux *ra = &ca->ca_ra;
+
+	if (strcmp("flash-memory", ra->ra_name))
+		return (0);
+	return (1);
+}
+
+void    
+flashattach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct confargs *ca = aux;
+	struct flash_softc *sc = (struct flash_softc *)self;
+
+	/* map registers */
+	if (ca->ca_ra.ra_nreg != 1) {
+		printf(": expected 1 register, got %d\n", ca->ca_ra.ra_nreg);
+		return;
+	}
+	sc->sc_regs = mapiodev(&(ca->ca_ra.ra_reg[0]), 0,
+			ca->ca_ra.ra_reg[0].rr_len);
+
+	sc->sc_node = ca->ca_ra.ra_node;
+
+	printf(": window 0x%x\n", ca->ca_ra.ra_reg[0].rr_len);
+}
+
+int
+flashopen(dev, flags, mode, p)
+	dev_t dev;
+	int flags;
+	int mode;
+	struct proc *p;
+{
+	struct flash_softc *sc;
+	int card = 0;
+
+	if (card >= flash_cd.cd_ndevs)
+		return (ENXIO);
+	sc = flash_cd.cd_devs[card];
+	if (sc->sc_open)
+		return (EBUSY);
+	sc->sc_open = 1;
+	return (0);
+}
+
+int
+flashclose(dev, flags, mode, p)
+	dev_t dev;
+	int flags;
+	int mode;
+	struct proc *p;
+{
+	struct flash_softc *sc = flash_cd.cd_devs[0];
+	sc->sc_open = 0;
+	return (0);
+}
+
+int
+flashwrite(dev, uio, flags)
+	dev_t dev;
+	struct uio *uio;
+	int flags;
+{
+	return (flashrw(dev, uio, flags));
+}
+
+int
+flashread(dev, uio, flags)
+	dev_t dev;
+	struct uio *uio;
+	int flags;
+{
+	return (flashrw(dev, uio, flags));
+}
+
+int
+flashrw(dev, uio, flags)
+	dev_t dev;
+	struct uio *uio;
+	int flags;
+{
+	struct flash_softc *sc = flash_cd.cd_devs[0];
+	u_int cnt;
+	int off;
+
+	off = uio->uio_offset;
+	if (off >= FLASH_REGS_SIZE)
+		return (EFAULT);
+
+	cnt = uio->uio_resid;
+	if (cnt > (FLASH_REGS_SIZE - off))
+		cnt = FLASH_REGS_SIZE - off;
+
+	return (uiomove(&sc->sc_regs->regs[0] + off, cnt, uio));
+}
+
+int
+flashioctl(dev, cmd, data, flags, p)
+	dev_t dev;
+	u_long cmd;
+	caddr_t data;
+	int flags;
+	struct proc *p;
+{
+	return (EINVAL);
+}