1 files changed, 87 insertions, 0 deletions
diff --git a/src/soc/intel/sch/ide.c b/src/soc/intel/sch/ide.c
new file mode 100644
index 0000000000..56e51a5cac
--- /dev/null
+++ b/src/soc/intel/sch/ide.c
@@ -0,0 +1,87 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009-2010 iWave Systems
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+/* PCI Configuration Space (D31:F1): IDE */
+#define INTR_LN			0x3c
+#define IDE_TIM_PRI		0x80	/* IDE timings, primary */
+
+extern int sch_port_access_read(int port, int reg, int bytes);
+
+static void ide_init(struct device *dev)
+{
+	u32 ideTimingConfig, reg32;
+
+	printk(BIOS_DEBUG, "sch_ide: initializing... ");
+
+	reg32 = pci_read_config32(dev, PCI_COMMAND);
+	pci_write_config32(dev, PCI_COMMAND,
+			   reg32 | PCI_COMMAND_IO | PCI_COMMAND_MASTER);
+
+	/* Program the clock. */
+	if (sch_port_access_read(5, 3, 4) & (1 << 3)) {
+		/* 533MHz, Read PCI MC register */
+		reg32 = pci_read_config32(dev, 0x60);
+		pci_write_config32(dev, 0x60, reg32 | 1);
+	} else {
+		/* 400MHz */
+		reg32 = pci_read_config32(dev, 0x60);
+		reg32 &= ~1;
+		pci_write_config32(dev, 0x60, reg32);
+	}
+
+	/* Enable primary IDE interface. 80=04 81=00 82=02 83=80 */
+	ideTimingConfig = 0x80020000;
+	printk(BIOS_DEBUG, "IDE0 ");
+	pci_write_config32(dev, IDE_TIM_PRI, ideTimingConfig);
+
+	/* Set Interrupt Line. */
+	/* Interrupt Pin is set by D31IP.PIP */
+	printk(BIOS_DEBUG, "\n");
+}
+
+static void ide_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	if (!vendor || !device) {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				   pci_read_config32(dev, PCI_VENDOR_ID));
+	} else {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+static struct pci_operations ide_pci_ops = {
+	.set_subsystem = 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		= &ide_pci_ops,
+};
+
+static const struct pci_driver sch_ide __pci_driver = {
+	.ops	= &ide_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x811A,
+};