Add high tables support to all northbridges.

[coreboot.git] / src / northbridge / via / vt8623 / northbridge.c

diff --git a/src/northbridge/via/vt8623/northbridge.c b/src/northbridge/via/vt8623/northbridge.c
index 80a314c18a654568ef422bc9fb91442a045e334b..70ba59c1d245c11aaa31c30d68f94e55468dc02e 100644 (file)
--- a/src/northbridge/via/vt8623/northbridge.c
+++ b/src/northbridge/via/vt8623/northbridge.c
@@ -15,25 +15,11 @@
 #include "northbridge.h"
 
 /*
- * This fixup is based on capturing values from an Award bios.  Without
+ * This fixup is based on capturing values from an Award BIOS.  Without
  * this fixup the DMA write performance is awful (i.e. hdparm -t /dev/hda is 20x
  * slower than normal, ethernet drops packets).
  * Apparently these registers govern some sort of bus master behavior.
  */
-#if 0
-static void dump_dev(device_t dev)
-{
-       int i,j;
-       
-       for(i = 0; i < 256; i += 16) {
-               printk_debug("0x%x: ", i);
-               for(j = 0; j < 16; j++) {
-                       printk_debug("%02x ", pci_read_config8(dev, i+j));
-               }
-               printk_debug("\n");
-       }
-}
-#endif
 
 static void northbridge_init(device_t dev) 
 {
@@ -72,7 +58,6 @@ static void northbridge_init(device_t dev)
                pci_write_config8(dev, 0xe0, c);
                pci_write_config8(dev, 0xe2, 0x42);      /* 'cos award does */
        }
-       //dump_dev(dev);
 }
 
 static void nullfunc(){}
@@ -100,7 +85,6 @@ static void agp_init(device_t dev)
        pci_write_config8(dev, 0x43, 0x44);
        pci_write_config8(dev, 0x44, 0x34);
        pci_write_config8(dev, 0x83, 0x02);
-       //dump_dev(dev);
 }
 
 static struct device_operations agp_operations = {
@@ -129,8 +113,6 @@ static void vga_init(device_t dev)
        pci_write_config32(dev,0x10,0xd8000008);
        pci_write_config32(dev,0x14,0xdc000000);
 
-       //dump_dev(dev);
-       
        // set up performnce counters for debugging vga init sequence
        //setup.lo = 0x1c0; // count instructions
        //wrmsr(0x187,setup);
@@ -175,7 +157,6 @@ static void vga_init(device_t dev)
        
 #endif
 
-
        pci_write_config32(dev,0x30,0);
 
        /* Set the vga mtrrs - disable for the moment as the add_var_mtrr function has vapourised */
@@ -272,6 +253,12 @@ static uint32_t find_pci_tolm(struct bus *bus)
        return tolm;
 }
 
+#if HAVE_HIGH_TABLES==1
+/* maximum size of high tables in KB */
+#define HIGH_TABLES_SIZE 64
+extern uint64_t high_tables_base, high_tables_size;
+#endif
+
 static void pci_domain_set_resources(device_t dev)
 {
        static const uint8_t ramregs[] = {0x5a, 0x5b, 0x5c, 0x5d };
@@ -311,6 +298,13 @@ static void pci_domain_set_resources(device_t dev)
                         */
                        tolmk = tomk;
                }
+
+#if HAVE_HIGH_TABLES == 1
+               high_tables_base = (tolmk - HIGH_TABLES_SIZE) * 1024;
+               high_tables_size = HIGH_TABLES_SIZE* 1024;
+               printk_debug("tom: %lx, high_tables_base: %llx, high_tables_size: %llx\n", tomk*1024, high_tables_base, high_tables_size);
+#endif
+
                /* Report the memory regions */
                idx = 10;
                ram_resource(dev, idx++, 0, 640);               /* first 640k */