diff options
Diffstat (limited to 'src/southbridge/intel/i82801ex/ide.c')
| -rw-r--r-- | src/southbridge/intel/i82801ex/ide.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801ex/ide.c b/src/southbridge/intel/i82801ex/ide.c new file mode 100644 index 0000000000..bbab6f1cc0 --- /dev/null +++ b/src/southbridge/intel/i82801ex/ide.c @@ -0,0 +1,43 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include "i82801ex.h" + +static void ide_init(struct device *dev) +{ + /* Enable IDE devices and timmings */ + pci_write_config16(dev, 0x40, 0x0a307); // IDE0 + pci_write_config16(dev, 0x42, 0x0a307); // IDE1 + pci_write_config8(dev, 0x48, 0x05); + pci_write_config16(dev, 0x4a, 0x0101); + pci_write_config16(dev, 0x54, 0x5055); + printk(BIOS_DEBUG, "IDE Enabled\n"); +} + +static void i82801ex_ide_set_subsystem(device_t dev, unsigned vendor, unsigned device) +{ + /* This value is also visible in uchi[0-2] and smbus functions */ + pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID, + ((device & 0xffff) << 16) | (vendor & 0xffff)); +} + +static struct pci_operations lops_pci = { + .set_subsystem = i82801ex_ide_set_subsystem, +}; +static struct device_operations ide_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = ide_init, + .scan_bus = 0, + .ops_pci = &lops_pci, +}; + +static const struct pci_driver ide_driver __pci_driver = { + .ops = &ide_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_82801ER_IDE, +}; + |