| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2008 - 2009 coresystems GmbH |
| * Copyright (C) 2014 - 2017 Intel Corporation. |
| * |
| * 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 <arch/io.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| |
| #include <soc/pci_devs.h> |
| #include <soc/ramstage.h> |
| #include <soc/sata.h> |
| |
| #include "chip.h" |
| |
| static void sata_init(struct device *dev) |
| { |
| u32 reg32; |
| u16 reg16; |
| u32 abar; |
| |
| /* Get the chip configuration */ |
| config_t *config = dev->chip_info; |
| |
| printk(BIOS_DEBUG, "SATA: Initializing...\n"); |
| |
| if (config == NULL) { |
| printk(BIOS_ERR, "SATA: ERROR: Device not in devicetree.cb!\n"); |
| return; |
| } |
| |
| /* SATA configuration is handled by the FSP */ |
| |
| /* Enable BARs */ |
| pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER | |
| PCI_COMMAND_MEMORY | |
| PCI_COMMAND_IO); |
| |
| printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n"); |
| |
| /* Set the controller mode */ |
| reg16 = pci_read_config16(dev, SATA_MAP); |
| reg16 &= ~(3 << 6); |
| reg16 |= SATA_MAP_AHCI; |
| pci_write_config16(dev, SATA_MAP, reg16); |
| |
| /* Initialize AHCI memory-mapped space */ |
| abar = pci_read_config32(dev, PCI_BASE_ADDRESS_5); |
| printk(BIOS_DEBUG, "ABAR: %08X\n", abar); |
| |
| /* Enable AHCI Mode */ |
| reg32 = read32((void *)(abar + 0x04)); |
| reg32 |= (1 << 31); |
| write32((void *)(abar + 0x04), reg32); |
| } |
| |
| static void sata_enable(device_t dev) { /* TODO */ } |
| |
| 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, |
| .enable = sata_enable, |
| .scan_bus = 0, |
| .ops_pci = &soc_pci_ops, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| AHCI_DEVID, /* DVN SATA AHCI */ |
| AHCI2_DEVID, /* DVN SATA2 AHCI */ |
| 0 |
| }; |
| |
| static const struct pci_driver soc_sata __pci_driver = { |
| .ops = &sata_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |