1 files changed, 64 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801dx/ide.c b/src/southbridge/intel/i82801dx/ide.c
new file mode 100644
index 0000000000..a54e49781e
--- /dev/null
+++ b/src/southbridge/intel/i82801dx/ide.c
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include "chip.h"
+#include "i82801dx.h"
+
+typedef struct southbridge_intel_i82801dx_config config_t;
+
+static void ide_init(struct device *dev)
+{
+	/* Get the chip configuration */
+	config_t *config = dev->chip_info;
+
+	/* Enable IDE devices so the Linux IDE driver will work. */
+	uint16_t ideTimingConfig;
+
+	ideTimingConfig = pci_read_config16(dev, IDE_TIM_PRI);
+	ideTimingConfig &= ~IDE_DECODE_ENABLE;
+	if (!config || config->ide0_enable) {
+		/* Enable primary IDE interface. */
+		ideTimingConfig |= IDE_DECODE_ENABLE;
+		printk(BIOS_DEBUG, "IDE0: Primary IDE interface is enabled\n");
+	} else {
+		printk(BIOS_INFO, "IDE0: Primary IDE interface is disabled\n");
+	}
+	pci_write_config16(dev, IDE_TIM_PRI, ideTimingConfig);
+
+	ideTimingConfig = pci_read_config16(dev, IDE_TIM_SEC);
+	ideTimingConfig &= ~IDE_DECODE_ENABLE;
+	if (!config || config->ide1_enable) {
+		/* Enable secondary IDE interface. */
+		ideTimingConfig |= IDE_DECODE_ENABLE;
+		printk(BIOS_DEBUG, "IDE1: Secondary IDE interface is enabled\n");
+	} else {
+		printk(BIOS_INFO, "IDE1: Secondary IDE interface is disabled\n");
+	}
+	pci_write_config16(dev, IDE_TIM_SEC, ideTimingConfig);
+}
+
+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,
+	.enable = i82801dx_enable,
+};
+
+/* 82801DB */
+static const struct pci_driver i82801db_ide __pci_driver = {
+	.ops = &ide_ops,
+	.vendor = PCI_VID_INTEL,
+	.device = 0x24cb,
+};
+
+/* 82801DBM */
+static const struct pci_driver i82801dbm_ide __pci_driver = {
+	.ops = &ide_ops,
+	.vendor = PCI_VID_INTEL,
+	.device = 0x24ca,
+};