diff options
Diffstat (limited to 'src/southbridge/intel/fsp_bd82x6x/sata.c')
-rw-r--r-- | src/southbridge/intel/fsp_bd82x6x/sata.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/southbridge/intel/fsp_bd82x6x/sata.c b/src/southbridge/intel/fsp_bd82x6x/sata.c new file mode 100644 index 0000000000..60790d4403 --- /dev/null +++ b/src/southbridge/intel/fsp_bd82x6x/sata.c @@ -0,0 +1,123 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2013 Sage Electronic Engineering, LLC. + * + * 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_fsp_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, "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, 0x0007); + + if (config->ide_legacy_combined) { + printk(BIOS_DEBUG, "SATA: Controller in combined mode.\n"); + + /* 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); + } else if(config->sata_ahci) { + u32 abar; + + printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n"); + + /* Set Interrupt Line */ + /* Interrupt Pin is set by D31IP.PIP */ + pci_write_config8(dev, INTR_LN, 0x0a); + + /* 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(abar + 0x04); + reg32 |= (1 << 31); + write32(abar + 0x04, reg32); + } else { + printk(BIOS_DEBUG, "SATA: Controller in plain mode.\n"); + + /* Set Interrupt Line */ + /* Interrupt Pin is set by D31IP.PIP */ + pci_write_config8(dev, INTR_LN, 0xff); + } + +} + +static void sata_enable(device_t dev) +{ +} + +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, + .enable = sata_enable, + .scan_bus = 0, + .ops_pci = &sata_pci_ops, +}; + +static const unsigned short pci_device_ids[] = { 0x1c00, 0x1c01, 0x1c02, 0x1c03, + 0x1e00, 0x1e01, 0x1e02, 0x1e03, 0x2323, + 0 }; + +static const struct pci_driver pch_sata __pci_driver = { + .ops = &sata_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; + |