diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index 119e49e..378d60e 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -327,6 +327,7 @@
 /* info about board */
 struct cirrusfb_info {
 	u8 __iomem *regbase;
+	u8 __iomem *laguna_mmio;
 	enum cirrus_board btype;
 	unsigned char SFR;	/* Shadow of special function register */
 
@@ -699,6 +700,7 @@
 	int yres, vdispend, vsyncstart, vsyncend, vtotal;
 	long freq;
 	int nom, den, div;
+	unsigned int control, format, threshold;
 
 	dev_dbg(info->device, "Requested mode: %dx%dx%d\n",
 	       var->xres, var->yres, var->bits_per_pixel);
@@ -866,6 +868,23 @@
 			cirrusfb_set_mclk_as_source(info, divMCLK);
 		}
 	}
+	if (cinfo->btype == BT_LAGUNA) {
+		long pcifc = fb_readl(cinfo->laguna_mmio + 0x3fc);
+		unsigned char tile = fb_readb(cinfo->laguna_mmio + 0x407);
+		unsigned short tile_control;
+
+		tile_control = fb_readw(cinfo->laguna_mmio + 0x2c4);
+		fb_writew(tile_control & ~0x80, cinfo->laguna_mmio + 0x2c4);
+
+		fb_writel(pcifc | 0x10000000l, cinfo->laguna_mmio + 0x3fc);
+		fb_writeb(tile & 0x3f, cinfo->laguna_mmio + 0x407);
+		control = fb_readw(cinfo->laguna_mmio + 0x402);
+		threshold = fb_readw(cinfo->laguna_mmio + 0xea);
+		control &= ~0x6800;
+		format = 0;
+		threshold &= 0xffe0;
+		threshold &= 0x3fbf;
+	}
 	if (nom) {
 		tmp = den << 1;
 		if (div != 0)
@@ -1035,6 +1054,7 @@
 		case BT_LAGUNA:
 			vga_wseq(regbase, CL_SEQR7,
 				vga_rseq(regbase, CL_SEQR7) | 0x01);
+			threshold |= 0x10;
 			break;
 
 		default:
@@ -1146,6 +1166,9 @@
 		case BT_LAGUNA:
 			vga_wseq(regbase, CL_SEQR7,
 				vga_rseq(regbase, CL_SEQR7) & ~0x01);
+			control |= 0x2000;
+			format |= 0x1400;
+			threshold |= 0x10;
 			break;
 
 		default:
@@ -1220,6 +1243,9 @@
 		case BT_LAGUNA:
 			vga_wseq(regbase, CL_SEQR7,
 				vga_rseq(regbase, CL_SEQR7) & ~0x01);
+			control |= 0x6000;
+			format |= 0x3400;
+			threshold |= 0x20;
 			break;
 
 		default:
@@ -1327,6 +1353,12 @@
 	/* graphics cursor attributes: nothing special */
 	vga_wseq(regbase, CL_SEQR12, 0x0);
 
+	if (cinfo->btype == BT_LAGUNA) {
+		/* no tiles */
+		fb_writew(control | 0x1000, cinfo->laguna_mmio + 0x402);
+		fb_writew(format, cinfo->laguna_mmio + 0xc0);
+		fb_writew(threshold, cinfo->laguna_mmio + 0xea);
+	}
 	/* finally, turn on everything - turn off "FullBandwidth" bit */
 	/* also, set "DotClock%2" bit where requested */
 	tmp = 0x01;
@@ -2000,7 +2032,10 @@
 static void cirrusfb_pci_unmap(struct fb_info *info)
 {
 	struct pci_dev *pdev = to_pci_dev(info->device);
+	struct cirrusfb_info *cinfo = info->par;
 
+	if (cinfo->laguna_mmio == NULL)
+		iounmap(cinfo->laguna_mmio);
 	iounmap(info->screen_base);
 #if 0 /* if system didn't claim this region, we would... */
 	release_mem_region(0xA0000, 65535);
@@ -2180,6 +2215,7 @@
 		get_pci_addrs(pdev, &board_addr, &info->fix.mmio_start);
 		/* FIXME: this forces VGA.  alternatives? */
 		cinfo->regbase = NULL;
+		cinfo->laguna_mmio = ioremap(info->fix.mmio_start, 0x1000);
 	}
 
 	dev_dbg(info->device, "Board address: 0x%lx, register address: 0x%lx\n",
@@ -2234,6 +2270,8 @@
 #endif
 	pci_release_regions(pdev);
 err_release_fb:
+	if (cinfo->laguna_mmio == NULL)
+		iounmap(cinfo->laguna_mmio);
 	framebuffer_release(info);
 err_disable:
 err_out: