diff options
Diffstat (limited to 'src/southbridge/amd/amd8111/ide.c')
-rw-r--r-- | src/southbridge/amd/amd8111/ide.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/southbridge/amd/amd8111/ide.c b/src/southbridge/amd/amd8111/ide.c new file mode 100644 index 0000000000..3299875187 --- /dev/null +++ b/src/southbridge/amd/amd8111/ide.c @@ -0,0 +1,66 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include "amd8111.h" + +static void ide_init(struct device *dev) +{ + struct southbridge_amd_amd8111_config *conf; + /* Enable ide devices so the linux ide driver will work */ + uint16_t word; + uint8_t byte; + conf = dev->chip_info; + + word = pci_read_config16(dev, 0x40); + /* Ensure prefetch is disabled */ + word &= ~((1 << 15) | (1 << 13)); + if (conf->ide1_enable) { + /* Enable secondary ide interface */ + word |= (1<<0); + printk(BIOS_DEBUG, "IDE1 "); + } + if (conf->ide0_enable) { + /* Enable primary ide interface */ + word |= (1<<1); + printk(BIOS_DEBUG, "IDE0 "); + } + + word |= (1<<12); + word |= (1<<14); + + pci_write_config16(dev, 0x40, word); + + + byte = 0x20 ; // Latency: 64-->32 + pci_write_config8(dev, 0xd, byte); + + word = 0x0f; + pci_write_config16(dev, 0x42, word); +} + +static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device) +{ + pci_write_config32(dev, 0x70, + ((device & 0xffff) << 16) | (vendor & 0xffff)); +} +static struct pci_operations lops_pci = { + .set_subsystem = lpci_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, + .enable = amd8111_enable, + .ops_pci = &lops_pci +}; + +static const struct pci_driver ide_driver __pci_driver = { + .ops = &ide_ops, + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_AMD_8111_IDE, +}; + |