| /* |
| * 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, |
| }; |
| |