diff options
| author | Stefan Reinauer <stepan@coresystems.de> | 2009-04-30 13:58:42 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2009-04-30 13:58:42 +0000 |
| commit | b5fb0c5c4eda2329d848aedcf4f7e8b6dc8012b2 (patch) | |
| tree | 9a0897635ecbeab0dd64124cd165d3460174a359 /src/northbridge/via/vt8623/northbridge.c | |
| parent | 6841ce653741b3dafe8e3482b4a93adbaee53552 (diff) | |
Add high tables support to all northbridges.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4238 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/via/vt8623/northbridge.c')
| -rw-r--r-- | src/northbridge/via/vt8623/northbridge.c | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/src/northbridge/via/vt8623/northbridge.c b/src/northbridge/via/vt8623/northbridge.c index 80a314c18a..70ba59c1d2 100644 --- 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 */ |