#include <device/pci_ops.h>
#include "i3100.h"
+#define SATA_CMD 0x04
+#define SATA_PI 0x09
+#define SATA_PTIM 0x40
+#define SATA_STIM 0x42
+#define SATA_D1TIM 0x44
+#define SATA_SYNCC 0x48
+#define SATA_SYNCTIM 0x4A
+#define SATA_IIOC 0x54
+#define SATA_MAP 0x90
+#define SATA_PCS 0x91
+#define SATA_ACR0 0xA8
+#define SATA_ACR1 0xAC
+#define SATA_ATC 0xC0
+#define SATA_ATS 0xC4
+#define SATA_SP 0xD0
+
+typedef struct southbridge_intel_i3100_config config_t;
+
static void sata_init(struct device *dev)
{
- /* Enable SATA devices */
-
- printk_debug("SATA init\n");
- /* SATA configuration */
- pci_write_config8(dev, 0x04, 0x07);
- pci_write_config8(dev, 0x09, 0x8f);
-
- /* Set timings */
- pci_write_config16(dev, 0x40, 0x0a307);
- pci_write_config16(dev, 0x42, 0x0a307);
+ u8 ahci;
- /* Sync DMA */
- pci_write_config16(dev, 0x48, 0x000f);
- pci_write_config16(dev, 0x4a, 0x1111);
+ /* Get the chip configuration */
+ ahci = (pci_read_config8(dev, SATA_MAP) >> 6) & 0x03;
- /* Fast ATA */
- pci_write_config16(dev, 0x54, 0x1000);
-
- /* Select IDE mode */
- pci_write_config8(dev, 0x90, 0x00);
-
- /* Enable ports 0-3 */
- pci_write_config8(dev, 0x92, 0x0f);
-
- printk_debug("SATA Enabled\n");
+ /* Enable SATA devices */
+ printk(BIOS_INFO, "SATA init (%s mode)\n", ahci ? "AHCI" : "Legacy");
+
+ if(ahci) {
+ /* AHCI mode */
+ pci_write_config8(dev, SATA_MAP, (1 << 6) | (0 << 0));
+
+ /* Enable ports */
+ pci_write_config8(dev, SATA_PCS, 0x03);
+ pci_write_config8(dev, SATA_PCS + 1, 0x0F);
+
+ /* Setup timings */
+ pci_write_config16(dev, SATA_PTIM, 0x8000);
+ pci_write_config16(dev, SATA_STIM, 0x8000);
+
+ /* Synchronous DMA */
+ pci_write_config8(dev, SATA_SYNCC, 0);
+ pci_write_config16(dev, SATA_SYNCTIM, 0);
+
+ /* IDE I/O configuration */
+ pci_write_config32(dev, SATA_IIOC, 0);
+
+ } else {
+ /* SATA configuration */
+ pci_write_config8(dev, SATA_CMD, 0x07);
+ pci_write_config8(dev, SATA_PI, 0x8f);
+
+ /* Set timings */
+ pci_write_config16(dev, SATA_PTIM, 0x0a307);
+ pci_write_config16(dev, SATA_STIM, 0x0a307);
+
+ /* Sync DMA */
+ pci_write_config8(dev, SATA_SYNCC, 0x0f);
+ pci_write_config16(dev, SATA_SYNCTIM, 0x1111);
+
+ /* Fast ATA */
+ pci_write_config16(dev, SATA_IIOC, 0x1000);
+
+ /* Select IDE mode */
+ pci_write_config8(dev, SATA_MAP, 0x00);
+
+ /* Enable ports 0-3 */
+ pci_write_config8(dev, SATA_PCS + 1, 0x0f);
+
+ }
+ printk(BIOS_DEBUG, "SATA Enabled\n");
}
static void sata_set_subsystem(device_t dev, unsigned vendor, unsigned device)
.ops_pci = &lops_pci,
};
-static struct pci_driver sata_driver __pci_driver = {
+static const struct pci_driver ide_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
- .device = PCI_DEVICE_ID_INTEL_3100_SATA,
+ .device = PCI_DEVICE_ID_INTEL_3100_IDE,
};
-static struct pci_driver sata_driver_nr __pci_driver = {
+static const struct pci_driver sata_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
- .device = PCI_DEVICE_ID_INTEL_3100_SATA_R,
+ .device = PCI_DEVICE_ID_INTEL_3100_AHCI,
};
+static const struct pci_driver ide_driver_ep80579 __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_EP80579_IDE,
+};
+
+static const struct pci_driver sata_driver_ep80579 __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_EP80579_AHCI,
+};