From bc21a41e1ca045baae57f79d89aafdf682528a4b Mon Sep 17 00:00:00 2001 From: Dave Frodin Date: Mon, 19 Jan 2015 11:40:38 -0700 Subject: southbridge/amd/pi: Rename Avalon to Hudson To maintain consistancy with southbridge/amd/agesa/hudson rename pi/avalon to pi/hudson in advance of adding support for the base hudson southbridge. Change-Id: Icff8c4c06aae2d40cbd9e90903754735ac3510c3 Signed-off-by: Dave Frodin Reviewed-on: http://review.coreboot.org/8251 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones --- src/southbridge/amd/pi/hudson/sata.c | 85 ++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 src/southbridge/amd/pi/hudson/sata.c (limited to 'src/southbridge/amd/pi/hudson/sata.c') diff --git a/src/southbridge/amd/pi/hudson/sata.c b/src/southbridge/amd/pi/hudson/sata.c new file mode 100644 index 0000000000..c02a5b119c --- /dev/null +++ b/src/southbridge/amd/pi/hudson/sata.c @@ -0,0 +1,85 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Advanced Micro Devices, Inc. + * + * 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 +#include +#include +#include +#include +#include +#include +#include "hudson.h" + + +static void sata_init(struct device *dev) +{ +#if IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_PI_AVALON) + /************************************** + * Configure the SATA port multiplier * + **************************************/ + #define BYTE_TO_DWORD_OFFSET(x) (x/4) + #define AHCI_BASE_ADDRESS_REG 0x24 + #define MISC_CONTROL_REG 0x40 + #define UNLOCK_BIT (1<<0) + #define SATA_CAPABILITIES_REG 0xFC + #define CFG_CAP_SPM (1<<12) + + volatile u32 *ahci_ptr = + (u32*)(pci_read_config32(dev, AHCI_BASE_ADDRESS_REG) & 0xFFFFFF00); + u32 temp; + + /* unlock the write-protect */ + temp = pci_read_config32(dev, MISC_CONTROL_REG); + temp |= UNLOCK_BIT; + pci_write_config32(dev, MISC_CONTROL_REG, temp); + + /* set the SATA AHCI mode to allow port expanders */ + *(ahci_ptr + BYTE_TO_DWORD_OFFSET(SATA_CAPABILITIES_REG)) |= CFG_CAP_SPM; + + /* lock the write-protect */ + temp = pci_read_config32(dev, MISC_CONTROL_REG); + temp &= ~UNLOCK_BIT; + pci_write_config32(dev, MISC_CONTROL_REG, temp); +#endif +}; + +static struct pci_operations lops_pci = { + /* .set_subsystem = pci_dev_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 = &lops_pci, +}; + +static const struct pci_driver sata0_driver __pci_driver = { + .ops = &sata_ops, + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_ATI_SB900_SATA, +}; + +static const struct pci_driver sata0_driver_ahci __pci_driver = { + .ops = &sata_ops, + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_ATI_SB900_SATA_AHCI, +}; -- cgit v1.2.3