diff options
Diffstat (limited to 'src/superio/NSC/pc87427/pc87427_early_init.c')
| -rw-r--r-- | src/superio/NSC/pc87427/pc87427_early_init.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/superio/NSC/pc87427/pc87427_early_init.c b/src/superio/NSC/pc87427/pc87427_early_init.c new file mode 100644 index 0000000000..71f702f11f --- /dev/null +++ b/src/superio/NSC/pc87427/pc87427_early_init.c @@ -0,0 +1,31 @@ +#include <arch/romcc_io.h> +#include "pc87427.h" + +static void pc87427_disable_dev(device_t dev) +{ + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); +} +static void pc87427_enable_dev(device_t dev, unsigned iobase) +{ + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + pnp_set_iobase(dev, PNP_IDX_IO0, iobase); + pnp_set_enable(dev, 1); +} +static void xbus_cfg(device_t dev) +{ + uint8_t i, data; + uint16_t xbus_index; + + pnp_set_logical_device(dev); + /* select proper BIOS size (4MB) */ + pnp_write_config(dev, PC87427_XMEMCNF2, (pnp_read_config(dev, PC87427_XMEMCNF2)) | 0x04); + xbus_index = pnp_read_iobase(dev, 0x60); + + /* enable writes to devices attached to XCS0 (XBUS Chip Select 0) */ + for (i=0; i<= 0xf; i++) { + outb((i<<4), xbus_index + PC87427_HAP0); + } + return; +} |