Initial support for the newer SiS chipsets, based on docs we finally

got from SiS.

This should also close PR 32421 which has patches which seem
to set the timing registers wrongly according to SiS...

1 files changed, 94 insertions, 11 deletions

diff --git a/sys/dev/ata/ata-dma.c b/sys/dev/ata/ata-dma.c
index 45791b0..3d6ef1e 100644
--- a/sys/dev/ata/ata-dma.c
+++ b/sys/dev/ata/ata-dma.c
@@ -521,17 +521,100 @@ via_82c586:
 	break;
 
     case 0x55131039:	/* SiS 5591 */
-	if (udmamode >= 2 && pci_get_revid(parent) > 0xc1) {
-	    error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
-				ATA_UDMA2, ATA_C_F_SETXFER, ATA_WAIT_READY);
-	    if (bootverbose)
-		ata_printf(scp, device,
-			   "%s setting UDMA2 on SiS chip\n",
-			   (error) ? "failed" : "success");
-	    if (!error) {
-		pci_write_config(parent, 0x40 + (devno << 1), 0xa301, 2);
-		scp->mode[ATA_DEV(device)] = ATA_UDMA2;
-		return;
+	if (ata_find_dev(parent, 0x06301039, 0x30) || 	/* SiS 630 */
+	    ata_find_dev(parent, 0x06331039, 0x00) || 	/* SiS 633 */
+	    ata_find_dev(parent, 0x06351039, 0x00) || 	/* SiS 635 */
+	    ata_find_dev(parent, 0x07301039, 0x00) || 	/* SiS 730 */
+	    ata_find_dev(parent, 0x07331039, 0x00) || 	/* SiS 733 */
+	    ata_find_dev(parent, 0x07351039, 0x00)) { 	/* SiS 735 */
+	    int8_t reg = 0x40 + (devno << 1);
+	    int16_t val = pci_read_config(parent, reg, 2) & 0x00ff;
+
+	    if (udmamode >= 5) {
+		error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
+				    ATA_UDMA5, ATA_C_F_SETXFER, ATA_WAIT_READY);
+		if (bootverbose)
+		    ata_printf(scp, device, 
+			       "%s setting UDMA5 on SiS chip\n",
+			       (error) ? "failed" : "success");
+		if (!error) {
+		    pci_write_config(parent, reg, val | 0x8100, 2);
+		    scp->mode[ATA_DEV(device)] = ATA_UDMA5;
+		    return;
+		}
+	    }
+	    if (udmamode >= 4) {
+		error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
+				    ATA_UDMA4, ATA_C_F_SETXFER, ATA_WAIT_READY);
+		if (bootverbose)
+		    ata_printf(scp, device, 
+			       "%s setting UDMA4 on SiS chip\n",
+			       (error) ? "failed" : "success");
+		if (!error) {
+		    pci_write_config(parent, reg, val | 0x8200, 2);
+		    scp->mode[ATA_DEV(device)] = ATA_UDMA4;
+		    return;
+		}
+	    }
+	    if (udmamode >= 2) {
+		error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
+				    ATA_UDMA2, ATA_C_F_SETXFER, ATA_WAIT_READY);
+		if (bootverbose)
+		    ata_printf(scp, device,
+			       "%s setting UDMA2 on SiS chip\n",
+			       (error) ? "failed" : "success");
+		if (!error) {
+		    pci_write_config(parent, reg, val | 0x8500, 2);
+		    scp->mode[ATA_DEV(device)] = ATA_UDMA2;
+		    return;
+		}
+	    }
+	} else if (ata_find_dev(parent, 0x05301039, 0) || /* SiS 530 */
+		   ata_find_dev(parent, 0x05401039, 0) || /* SiS 540 */
+		   ata_find_dev(parent, 0x06201039, 0) || /* SiS 620 */
+		   ata_find_dev(parent, 0x06301039, 0)) { /* SiS 630 */
+	    int8_t reg = 0x40 + (devno << 1);
+	    int16_t val = pci_read_config(parent, reg, 2) & 0x0fff;
+
+	    if (udmamode >= 4) {
+		error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
+				    ATA_UDMA4, ATA_C_F_SETXFER, ATA_WAIT_READY);
+		if (bootverbose)
+		    ata_printf(scp, device, 
+			       "%s setting UDMA4 on SiS chip\n",
+			       (error) ? "failed" : "success");
+		if (!error) {
+		    pci_write_config(parent, reg, val | 0x9000, 2);
+		    scp->mode[ATA_DEV(device)] = ATA_UDMA4;
+		    return;
+		}
+	    }
+	    if (udmamode >= 2) {
+		error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
+				    ATA_UDMA2, ATA_C_F_SETXFER, ATA_WAIT_READY);
+		if (bootverbose)
+		    ata_printf(scp, device,
+			       "%s setting UDMA2 on SiS chip\n",
+			       (error) ? "failed" : "success");
+		if (!error) {
+		    pci_write_config(parent, reg, val | 0xb000, 2);
+		    scp->mode[ATA_DEV(device)] = ATA_UDMA2;
+		    return;
+		}
+	    }
+	} else {	/* SiS 5591 */
+	    if (udmamode >= 2 && pci_get_revid(parent) > 0xc1) {
+		error = ata_command(scp, device, ATA_C_SETFEATURES, 0,
+				    ATA_UDMA2, ATA_C_F_SETXFER, ATA_WAIT_READY);
+		if (bootverbose)
+		    ata_printf(scp, device,
+			       "%s setting UDMA2 on SiS chip\n",
+			       (error) ? "failed" : "success");
+		if (!error) {
+		    pci_write_config(parent, 0x40 + (devno << 1), 0xa301, 2);
+		    scp->mode[ATA_DEV(device)] = ATA_UDMA2;
+		    return;
+		}
 	    }
 	}
 	if (wdmamode >=2 && apiomode >= 4) {