+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include "pch.h"
+
+typedef struct southbridge_intel_bd82x6x_config config_t;
+
+static void sata_init(struct device *dev)
+{
+ u32 reg32;
+ u16 reg16;
+ /* Get the chip configuration */
+ config_t *config = dev->chip_info;
+
+ printk(BIOS_DEBUG, "pch_sata: initializing...\n");
+
+ if (config == NULL) {
+ printk(BIOS_ERR, "pch_sata: error: device not in devicetree.cb!\n");
+ return;
+ }
+
+ /* SATA configuration */
+
+ /* Enable BARs */
+ pci_write_config16(dev, PCI_COMMAND, 0x0007);
+
+ if (config->ide_legacy_combined) {
+ printk(BIOS_DEBUG, "SATA controller in combined mode.\n");
+ /* Combine IDE - SATA configuration */
+ pci_write_config16(dev, 0x90, 0x0000);
+
+ /* No AHCI: clear AHCI base */
+ pci_write_config32(dev, 0x24, 0x00000000);
+ /* And without AHCI BAR no memory decoding */
+ reg16 = pci_read_config16(dev, PCI_COMMAND);
+ reg16 &= ~PCI_COMMAND_MEMORY;
+ pci_write_config16(dev, PCI_COMMAND, reg16);
+
+ pci_write_config8(dev, 0x09, 0x80);
+
+ /* Set timings */
+ pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
+ IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS);
+ pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
+ IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
+ IDE_PPE0 | IDE_IE0 | IDE_TIME0);
+
+ /* Sync DMA */
+ pci_write_config16(dev, IDE_SDMA_CNT, IDE_SSDE0);
+ pci_write_config16(dev, IDE_SDMA_TIM, 0x0200);
+
+ /* Set IDE I/O Configuration */
+ reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
+ pci_write_config32(dev, IDE_CONFIG, reg32);
+
+ /* Port enable */
+ reg16 = pci_read_config16(dev, 0x92);
+ reg16 &= ~0x3f;
+ reg16 |= config->sata_port_map;
+ pci_write_config16(dev, 0x92, reg16);
+
+ /* SATA Initialization register */
+ pci_write_config32(dev, 0x94,
+ ((config->sata_port_map ^ 0x3f) << 24) | 0x183);
+ } else if(config->sata_ahci) {
+ u32 abar;
+
+ printk(BIOS_DEBUG, "SATA controller in AHCI mode.\n");
+ /* Set Sata Controller Mode. */
+ pci_write_config16(dev, 0x90, 0x0060 |
+ ((config->sata_port_map ^ 0x3f) << 8));
+
+ /* Set Interrupt Line */
+ /* Interrupt Pin is set by D31IP.PIP */
+ pci_write_config8(dev, INTR_LN, 0x0a);
+
+ /* Set timings */
+ pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
+ IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
+ IDE_PPE0 | IDE_IE0 | IDE_TIME0);
+ pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
+ IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS);
+
+ /* Sync DMA */
+ pci_write_config16(dev, IDE_SDMA_CNT, IDE_PSDE0);
+ pci_write_config16(dev, IDE_SDMA_TIM, 0x0001);
+
+ /* Set IDE I/O Configuration */
+ reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
+ pci_write_config32(dev, IDE_CONFIG, reg32);
+
+ /* for AHCI, Port Enable is managed in memory mapped space */
+ reg16 = pci_read_config16(dev, 0x92);
+ reg16 &= ~0x3f; /* 6 ports SKU + ORM */
+ reg16 |= 0x8000 | config->sata_port_map;
+ pci_write_config16(dev, 0x92, reg16);
+
+ /* SATA Initialization register */
+ pci_write_config32(dev, 0x94,
+ ((config->sata_port_map ^ 0x3f) << 24) | 0x183);
+
+ /* Initialize AHCI memory-mapped space */
+ abar = pci_read_config32(dev, PCI_BASE_ADDRESS_5);
+ printk(BIOS_DEBUG, "ABAR: %08X\n", abar);
+ /* CAP (HBA Capabilities) : enable power management */
+ reg32 = read32(abar + 0x00);
+ reg32 |= 0x0c006000; // set PSC+SSC+SALP+SSS
+ reg32 &= ~0x00020060; // clear SXS+EMS+PMS
+ write32(abar + 0x00, reg32);
+ /* PI (Ports implemented) */
+ write32(abar + 0x0c, config->sata_port_map);
+ (void) read32(abar + 0x0c); /* Read back 1 */
+ (void) read32(abar + 0x0c); /* Read back 2 */
+ /* CAP2 (HBA Capabilities Extended)*/
+ reg32 = read32(abar + 0x24);
+ reg32 &= ~0x00000002;
+ write32(abar + 0x24, reg32);
+ /* VSP (Vendor Specific Register */
+ reg32 = read32(abar + 0xa0);
+ reg32 &= ~0x00000005;
+ write32(abar + 0xa0, reg32);
+ } else {
+ printk(BIOS_DEBUG, "SATA controller in plain mode.\n");
+ /* Set Sata Controller Mode. No Mapping(?) */
+ pci_write_config16(dev, 0x90, 0x0000);
+
+ /* No AHCI: clear AHCI base */
+ pci_write_config32(dev, 0x24, 0x00000000);
+
+ /* And without AHCI BAR no memory decoding */
+ reg16 = pci_read_config16(dev, PCI_COMMAND);
+ reg16 &= ~PCI_COMMAND_MEMORY;
+ pci_write_config16(dev, PCI_COMMAND, reg16);
+
+ /* Native mode capable on both primary and secondary (0xa)
+ * or'ed with enabled (0x50) = 0xf
+ */
+ pci_write_config8(dev, 0x09, 0x8f);
+
+ /* Set Interrupt Line */
+ /* Interrupt Pin is set by D31IP.PIP */
+ pci_write_config8(dev, INTR_LN, 0xff);
+
+ /* Set timings */
+ pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
+ IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
+ IDE_PPE0 | IDE_IE0 | IDE_TIME0);
+ pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
+ IDE_SITRE | IDE_ISP_3_CLOCKS |
+ IDE_RCT_1_CLOCKS | IDE_IE0 | IDE_TIME0);
+
+ /* Sync DMA */
+ pci_write_config16(dev, IDE_SDMA_CNT, IDE_SSDE0 | IDE_PSDE0);
+ pci_write_config16(dev, IDE_SDMA_TIM, 0x0201);
+
+ /* Set IDE I/O Configuration */
+ reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
+ pci_write_config32(dev, IDE_CONFIG, reg32);
+
+ /* Port enable */
+ reg16 = pci_read_config16(dev, 0x92);
+ reg16 &= ~0x3f;
+ reg16 |= config->sata_port_map;
+ pci_write_config16(dev, 0x92, reg16);
+
+ /* SATA Initialization register */
+ pci_write_config32(dev, 0x94,
+ ((config->sata_port_map ^ 0x3f) << 24) | 0x183);
+ }
+}
+
+static void sata_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 sata_pci_ops = {
+ .set_subsystem = sata_set_subsystem,
+};
+
+static struct device_operations sata_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = sata_init,
+ .scan_bus = 0,
+ .ops_pci = &sata_pci_ops,
+};
+
+/* Non-AHCI and Non-RAID Mode */
+static const struct pci_driver pch_sata_normal_driver __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = 0x1c00,
+};
+static const struct pci_driver pch_sata_mobile_normal_driver __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = 0x1c01,
+};
+
+/* AHCI Mode */
+static const struct pci_driver pch_sata_ahci_driver __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = 0x1c02,
+};
+static const struct pci_driver pch_sata_mobile_ahci_driver __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = 0x1c03,
+};
+static const struct pci_driver pch_sata_mobile_ahci_driver_a __pci_driver = {
+ .ops = &sata_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = 0x1e03,
+};
+
projects / coreboot.git / blobdiff