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/*
* 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(struct device *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,
};
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