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Call eeprom driver for eeprom access.

This commit is contained in:
gwr 1994-09-20 16:51:09 +00:00
parent 5189af7e96
commit 52ef17d342
1 changed files with 8 additions and 13 deletions
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21
sys/arch/sun3/sun3/mem.c
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@ -1,4 +1,5 @@
/*
* Copyright (c) 1994 Gordon W. Ross
* Copyright (c) 1993 Adam Glass
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1986, 1990, 1993
@ -36,10 +37,9 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: mem.c 1.14 90/10/12$
*
* from: Utah $Hdr: mem.c 1.14 90/10/12$
* from: @(#)mem.c 8.3 (Berkeley) 1/12/94
* $Id: mem.c,v 1.9 1994/06/01 15:28:17 gwr Exp $
* $Id: mem.c,v 1.10 1994/09/20 16:51:09 gwr Exp $
*/
/*
@ -59,7 +59,8 @@
#include <vm/vm_prot.h>
#include <machine/cpu.h>
#include <machine/obio.h>
extern int eeprom_uio();
extern int physmem;
extern caddr_t vmmap;
@ -134,13 +135,7 @@ mmrw(dev, uio, flags)
/* minor device 11 (/dev/eeprom) accesses Non-Volatile RAM */
case 11:
if (eeprom_va == NULL)
return (ENXIO);
o = uio->uio_offset;
if (o >= OBIO_EEPROM_SIZE)
return (EFAULT);
c = min(uio->uio_resid, OBIO_EEPROM_SIZE - o);
error = uiomove(eeprom_va + o, (int)c, uio);
error = eeprom_uio(uio);
return (error);
/* minor device 12 (/dev/zero) is source of nulls on read, rathole on write */
@ -192,8 +187,8 @@ mmmap(dev, off, prot)
/*
* Allow access only in RAM.
*
* XXX could be extended to allow access to IO space but must
* be very careful.
* This could be extended to allow access to IO space but
* it is probably better to make device drivers do it.
*/
if ((u_int)off >= (u_int)physmem)
return (-1);