diff options
Diffstat (limited to 'src/southbridge/intel/esb6300/ide.c')
| -rw-r--r-- | src/southbridge/intel/esb6300/ide.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/southbridge/intel/esb6300/ide.c b/src/southbridge/intel/esb6300/ide.c new file mode 100644 index 0000000000..abe86a811d --- /dev/null +++ b/src/southbridge/intel/esb6300/ide.c @@ -0,0 +1,56 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include "esb6300.h" + +static void ide_init(struct device *dev) +{ + + /* Enable ide devices so the linux ide driver will work */ + + /* Enable IDE devices */ + pci_write_config16(dev, 0x40, 0x0a307); + pci_write_config16(dev, 0x42, 0x0a307); + pci_write_config8(dev, 0x48, 0x05); + pci_write_config16(dev, 0x4a, 0x0101); + pci_write_config16(dev, 0x54, 0x5055); + +#if 0 + uint16_t word; + word = pci_read_config16(dev, 0x40); + word |= (1 << 15); + pci_write_config16(dev, 0x40, word); + word = pci_read_config16(dev, 0x42); + word |= (1 << 15); + pci_write_config16(dev, 0x42, word); +#endif + printk(BIOS_DEBUG, "IDE Enabled\n"); +} + +static void esb6300_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 = esb6300_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_6300ESB_IDE, +}; + |