diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/asus/m2v-mx_se/romstage.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mainboard/asus/m2v-mx_se/romstage.c b/src/mainboard/asus/m2v-mx_se/romstage.c index 580d8fa50a..9825e2bcfb 100644 --- a/src/mainboard/asus/m2v-mx_se/romstage.c +++ b/src/mainboard/asus/m2v-mx_se/romstage.c @@ -74,10 +74,15 @@ static inline int spd_read_byte(unsigned device, unsigned address) #define SB_VFSMAF 0 -/* this function might fail on some K8 CPUs with errata #181 */ static void ldtstop_sb(void) { print_debug("toggle LDTSTP#\n"); + + /* fix errata #181, disable DRAM controller it will get enabled later */ + u8 tmp = pci_read_config8(PCI_DEV(0, 0x18, 2), 0x94); + tmp |= (( 1 << 14) | (1 << 3)); + pci_write_config8(PCI_DEV(0, 0x18, 2), 0x94, tmp); + u8 reg = inb (VT8237R_ACPI_IO_BASE + 0x5c); reg = reg ^ (1 << 0); outb(reg, VT8237R_ACPI_IO_BASE + 0x5c); |