From 4c06997893b8673dd17dcb4c05d31ad510f83876 Mon Sep 17 00:00:00 2001
From: pefo <pefo@openbsd.org>
Date: Sun, 16 Feb 1997 22:31:22 +0000
Subject: [PATCH] Some changes for WG testing.

---
 sys/arch/wgrisc/dev/dma.h        | 20 ++++++++++++++++----
 sys/arch/wgrisc/include/bus.h    |  9 +++++++--
 sys/arch/wgrisc/wgrisc/machdep.c |  7 +++++--
 sys/arch/wgrisc/wgrisc/mem.c     |  6 +++++-
 4 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/sys/arch/wgrisc/dev/dma.h b/sys/arch/wgrisc/dev/dma.h
index beb49e3beb0..3011b068c8e 100644
--- a/sys/arch/wgrisc/dev/dma.h
+++ b/sys/arch/wgrisc/dev/dma.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dma.h,v 1.1.1.1 1997/02/06 16:02:42 pefo Exp $ */
+/*	$OpenBSD: dma.h,v 1.2 1997/02/16 22:31:22 pefo Exp $ */
 
 /*
  * Copyright (c) 1996 Per Fogelstrom
@@ -124,6 +124,10 @@ typedef struct dma_softc {
 	        xcmd = ~(0x30 << 6);					\
 	    }								\
 	    dcmd |= (1 << 26);						\
+	    /* Switch direction before enable */			\
+	    out32(R3715_IO_TIMING, (in32(R3715_IO_TIMING) & xcmd) |	\
+			(dcmd & ~0x410));				\
+	    (void)in16(RISC_STATUS);					\
 	    out32(R3715_IO_TIMING, (in32(R3715_IO_TIMING) & xcmd) | dcmd);\
 	}
 #endif
@@ -132,9 +136,17 @@ typedef struct dma_softc {
 #define	DMA_DRAIN(r)
 #define	DMA_END(c)							\
 	{								\
-	    int dcmd;							\
-	    dcmd = ((c)->dma_ch == DMA_CH0) ? 0x10 : 0x10000;		\
-	    out32(R3715_IO_TIMING, in32(R3715_IO_TIMING) & ~dcmd);	\
+	    int resudial;						\
+	    if((c)->dma_ch == DMA_CH0) {				\
+	    	out32(R3715_IO_TIMING, in32(R3715_IO_TIMING) & ~0x10);	\
+		resudial = in32(R3715_DMA_CNT0);			\
+if(resudial)								\
+printf("res: %d\n", resudial);						\
+	    }								\
+	    else {							\
+	    	out32(R3715_IO_TIMING, in32(R3715_IO_TIMING) & ~0x400);	\
+		resudial = in32(R3715_DMA_CNT1);			\
+	    }								\
 	    if((c)->mode == DMA_FROM_DEV) {				\
 		int *_v = (int *)(c)->req_va;				\
 		int *_p = (int *)PHYS_TO_UNCACHED(CACHED_TO_PHYS(dma_buffer)); \
diff --git a/sys/arch/wgrisc/include/bus.h b/sys/arch/wgrisc/include/bus.h
index b990c5e3e03..64f484f3af9 100644
--- a/sys/arch/wgrisc/include/bus.h
+++ b/sys/arch/wgrisc/include/bus.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bus.h,v 1.1.1.1 1997/02/06 16:02:44 pefo Exp $	*/
+/*	$OpenBSD: bus.h,v 1.2 1997/02/16 22:31:25 pefo Exp $	*/
 
 /*
  * Copyright (c) 1996 Niklas Hallqvist.  All rights reserved.
@@ -61,6 +61,8 @@ static __inline CAT3(u_int,m,_t)					      \
 CAT(bus_space_read_,n)(bus_space_tag_t bst, bus_space_handle_t bsh,	      \
      bus_addr_t ba)							      \
 {									      \
+	wbflush();							      \
+	wbflush();							      \
 	wbflush();							      \
 	wbflush();							      \
 	wbflush();							      \
@@ -94,10 +96,13 @@ CAT(bus_space_write_,n)(bus_space_tag_t bst, bus_space_handle_t bsh,	      \
      bus_addr_t ba, CAT3(u_int,m,_t) x)					      \
 {									      \
 	wbflush();							      \
-	*(volatile CAT3(u_int,m,_t) *)(bsh + ba) = x;			      \
 	wbflush();							      \
 	wbflush();							      \
 	wbflush();							      \
+	wbflush();							      \
+	wbflush();							      \
+	wbflush();							      \
+	*(volatile CAT3(u_int,m,_t) *)(bsh + ba) = x;			      \
 }
 
 bus_space_write(1,8)
diff --git a/sys/arch/wgrisc/wgrisc/machdep.c b/sys/arch/wgrisc/wgrisc/machdep.c
index 8fd0d5a1844..a0ab1bdcbd5 100644
--- a/sys/arch/wgrisc/wgrisc/machdep.c
+++ b/sys/arch/wgrisc/wgrisc/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.1.1.1 1997/02/06 16:02:46 pefo Exp $	*/
+/*	$OpenBSD: machdep.c,v 1.2 1997/02/16 22:31:26 pefo Exp $	*/
 /*
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1992, 1993
@@ -38,7 +38,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)machdep.c	8.3 (Berkeley) 1/12/94
- *      $Id: machdep.c,v 1.1.1.1 1997/02/06 16:02:46 pefo Exp $
+ *      $Id: machdep.c,v 1.2 1997/02/16 22:31:26 pefo Exp $
  */
 
 /* from: Utah Hdr: machdep.c 1.63 91/04/24 */
@@ -177,6 +177,9 @@ mips_init(argc, argv, code)
 	mem_layout[1].mem_size = 0x400000 - (int)(CACHED_TO_PHYS(sysend));
 	physmem = 4096 * 1024;
 
+	mem_layout[2].mem_start = 0x400000;
+	mem_layout[2].mem_size = 0x800000;
+	physmem += 8192 * 1024;
 
 	switch (cputype) {
 	case WGRISC9100:
diff --git a/sys/arch/wgrisc/wgrisc/mem.c b/sys/arch/wgrisc/wgrisc/mem.c
index 7c529aa6e2a..557bf234431 100644
--- a/sys/arch/wgrisc/wgrisc/mem.c
+++ b/sys/arch/wgrisc/wgrisc/mem.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mem.c,v 1.1.1.1 1997/02/06 16:02:46 pefo Exp $	*/
+/*	$OpenBSD: mem.c,v 1.2 1997/02/16 22:31:28 pefo Exp $	*/
 /*	$NetBSD: mem.c,v 1.6 1995/04/10 11:55:03 mycroft Exp $	*/
 
 /*
@@ -135,6 +135,10 @@ mmrw(dev, uio, flags)
 				uio->uio_resid = 0;
 			return (0);
 
+		case 3:
+			mdbpanic();
+			return(0);
+
 /* minor device 12 (/dev/zero) is source of nulls on read, rathole on write */
 		case 12:
 			if (uio->uio_rw == UIO_WRITE) {
-- 
2.20.1