diff options
Diffstat (limited to 'src/mainboard/via/epia/auto.c')
| -rw-r--r-- | src/mainboard/via/epia/auto.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/mainboard/via/epia/auto.c b/src/mainboard/via/epia/auto.c index e5ea66cec1..fe999b0608 100644 --- a/src/mainboard/via/epia/auto.c +++ b/src/mainboard/via/epia/auto.c @@ -50,6 +50,30 @@ static inline int spd_read_byte(unsigned device, unsigned address) #include "sdram/generic_sdram.c" */ +static void +enable_mainboard_devices(void) { + device_t dev; + /* dev 0 for southbridge */ + + dev = pci_locate_device(PCI_ID(0x1106,0x8231), 0); + + if (dev == PCI_DEV_INVALID) { + die("Southbridge not found!!!\n"); + } + pci_write_config8(dev, 0x50, 7); + pci_write_config8(dev, 0x51, 0xff); +} + +static void +enable_shadow_ram(void) { + device_t dev = 0; /* no need to look up 0:0.0 */ + unsigned char shadowreg; + /* dev 0 for southbridge */ + shadowreg = pci_read_config8(dev, 0x63); + /* 0xf0000-0xfffff */ + shadowreg |= 0x30; + pci_write_config8(dev, 0x63, shadowreg); +} static void main(void) { unsigned long x; @@ -57,10 +81,12 @@ static void main(void) outb(5, 0x80); enable_vt8231_serial(); + enable_mainboard_devices(); uart_init(); console_init(); enable_smbus(); + enable_shadow_ram(); /* memreset_setup(); this is way more generic than we need. |