[coreboot] [v2] r4585 - trunk/coreboot-v2/src/southbridge/amd/rs690

[svn at coreboot.org]

Author: mjones
Date: 2009-08-26 18:04:47 +0200 (Wed, 26 Aug 2009)
New Revision: 4585

Modified:
   trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_gfx.c
   trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_pcie.c
Log:
Enable Direct TMDS for the RS690, which allows to display on HDMI and DVI
monitors.

Signed-off-by: Libra Li <libra.li at technexion.com>
Acked-by: Marc Jones <marcj303 at gmail.com>



Modified: trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_gfx.c
===================================================================
--- trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_gfx.c	2009-08-26 15:35:36 UTC (rev 4584)
+++ trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_gfx.c	2009-08-26 16:04:47 UTC (rev 4585)
@@ -471,7 +471,49 @@
 	/* done by enable_pci_bar3() before */
 
 	/* step 6 SBIOS compile flags */
+        if (cfg->gfx_tmds) {
+                /* step 6.2.2 Clock-Muxing Control */
+                /* step 6.2.2.1 */
+                set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 16, 1 << 16);
 
+                /* step 6.2.2.2 */
+                set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 8, 1 << 8);
+                set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 10, 1 << 10);
+
+                /* step 6.2.2.3 */
+                set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 26, 1 << 26);
+
+                /* step 6.2.3 Lane-Muxing Control */
+                /* step 6.2.3.1 */
+                set_nbmisc_enable_bits(nb_dev, 0x37, 0x3 << 8, 0x2 << 8);
+
+                /* step 6.2.4 Received Data Control */
+                /* step 6.2.4.1 */
+                set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 16, 0x2 << 16);
+
+                /* step 6.2.4.2 */
+                set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 18, 0x3 << 18);
+
+                /* step 6.2.4.3 */
+                set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 20, 0x0 << 20);
+
+                /* step 6.2.4.4 */
+                set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 22, 0x1 << 22);
+
+                /* step 6.2.5 PLL Power Down Control */
+                /* step 6.2.5.1 */
+                set_nbmisc_enable_bits(nb_dev, 0x35, 0x3 << 6, 0x0 << 6);
+
+                /* step 6.2.6 Driving Strength Control */
+                /* step 6.2.6.1 */
+                set_nbmisc_enable_bits(nb_dev, 0x34, 0x1 << 24, 0x0 << 24);
+
+                /* step 6.2.6.2 */
+                set_nbmisc_enable_bits(nb_dev, 0x35, 0x3 << 2, 0x3 << 2);
+        }
+
+        printk_info("rs690_gfx_init step6.\n");
+
 	/* step 7 compliance state, (only need if CMOS option is enabled) */
 	/* the compliance stete is just for test. refer to 4.2.5.2 of PCIe specification */
 	if (cfg->gfx_compliance) {

Modified: trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_pcie.c
===================================================================
--- trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_pcie.c	2009-08-26 15:35:36 UTC (rev 4584)
+++ trunk/coreboot-v2/src/southbridge/amd/rs690/rs690_pcie.c	2009-08-26 16:04:47 UTC (rev 4585)
@@ -87,18 +87,21 @@
 		 Config & (PCIE_DISABLE_HIDE_UNUSED_PORTS +
 			   PCIE_GFX_COMPLIANCE))) {
 	}
-	/* step 3 Power Down Control for Southbridge */
-	reg = nbpcie_p_read_index(dev, 0xa2);
 
-	switch ((reg >> 4) & 0x7) {	/* get bit 4-6, LC_LINK_WIDTH_RD */
-	case 1:
-		nbpcie_ind_write_index(nb_dev, 0x65, 0x0e0e);
-		break;
-	case 2:
-		nbpcie_ind_write_index(nb_dev, 0x65, 0x0c0c);
-		break;
-	default:
-		break;
+        if (!cfg->gfx_tmds){
+		/* step 3 Power Down Control for Southbridge */
+		reg = nbpcie_p_read_index(dev, 0xa2);
+
+		switch ((reg >> 4) & 0x7) {	/* get bit 4-6, LC_LINK_WIDTH_RD */
+		case 1:
+			nbpcie_ind_write_index(nb_dev, 0x65, 0x0e0e);
+			break;
+		case 2:
+			nbpcie_ind_write_index(nb_dev, 0x65, 0x0c0c);
+			break;
+		default:
+			break;
+		}
 	}
 }