diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/sis/sis966/sisnb.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/src/southbridge/sis/sis966/sisnb.c b/src/southbridge/sis/sis966/sisnb.c deleted file mode 100644 index 8cb1c955b4..0000000000 --- a/src/southbridge/sis/sis966/sisnb.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * This file is part of the LinuxBIOS project. - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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 - * - * Turn off machine check triggers when reading - * pci space where there are no devices. - * This is necessary when scaning the bus for - * devices which is done by the kernel - * - * written in 2003 by Eric Biederman - * - * - Athlon64 workarounds by Stefan Reinauer - * - "reset once" logic by Yinghai Lu - * Copyright (C) 2007 Silicon Integrated Systems Corp. (SiS) - * Written by Morgan Tsai <my_tsai@sis.com> for SiS. - * - */ - -#include <console/console.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#include <part/hard_reset.h> -#include <pc80/mc146818rtc.h> -#include <bitops.h> -#include <cpu/amd/model_fxx_rev.h> - -//#include "amdk8.h" - -#include <arch/io.h> - -/** - * @brief Read resources for AGP aperture - * - * @param - * - * There is only one AGP aperture resource needed. The resoruce is added to - * the northbridge of BSP. - * - * The same trick can be used to augment legacy VGA resources which can - * be detect by generic pci reousrce allocator for VGA devices. - * BAD: it is more tricky than I think, the resource allocation code is - * implemented in a way to NOT DOING legacy VGA resource allcation on - * purpose :-(. - */ - - -typedef struct msr_struct -{ - unsigned lo; - unsigned hi; -} msr_t; - -static inline msr_t rdmsr(unsigned index) -{ - msr_t result; - result.lo = 0; - result.hi = 0; - return result; -} - - - -static void sisnb_read_resources(device_t dev) -{ - struct resource *resource; - unsigned char iommu; - /* Read the generic PCI resources */ - printk_debug("sisnb_read_resources\n"); - pci_dev_read_resources(dev); - - /* If we are not the first processor don't allocate the gart apeture */ - if (dev->path.u.pci.devfn != PCI_DEVFN(0x0, 0)) { - return; - } - - - return; - - iommu = 1; - get_option(&iommu, "iommu"); - - if (iommu) { - /* Add a Gart apeture resource */ - resource = new_resource(dev, 0x94); - resource->size = iommu?AGP_APERTURE_SIZE:1; - resource->align = log2(resource->size); - resource->gran = log2(resource->size); - resource->limit = 0xffffffff; /* 4G */ - resource->flags = IORESOURCE_MEM; - } -} - -static void set_agp_aperture(device_t dev) -{ - struct resource *resource; - - return; - - resource = probe_resource(dev, 0x94); - if (resource) { - device_t pdev; - uint32_t gart_base, gart_acr; - - /* Remember this resource has been stored */ - resource->flags |= IORESOURCE_STORED; - - /* Find the size of the GART aperture */ - gart_acr = (0<<6)|(0<<5)|(0<<4)|((resource->gran - 25) << 1)|(0<<0); - - /* Get the base address */ - gart_base = ((resource->base) >> 25) & 0x00007fff; - - /* Update the other northbriges */ - pdev = 0; - while((pdev = dev_find_device(PCI_VENDOR_ID_AMD, 0x1103, pdev))) { - /* Store the GART size but don't enable it */ - pci_write_config32(pdev, 0x90, gart_acr); - - /* Store the GART base address */ - pci_write_config32(pdev, 0x94, gart_base); - - /* Don't set the GART Table base address */ - pci_write_config32(pdev, 0x98, 0); - - /* Report the resource has been stored... */ - report_resource_stored(pdev, resource, " <gart>"); - } - } -} - -static void sisnb_set_resources(device_t dev) -{ -printk_debug("sisnb_set_resources ------->\n"); - /* Set the gart apeture */ -// set_agp_aperture(dev); - - /* Set the generic PCI resources */ - pci_dev_set_resources(dev); - printk_debug("sisnb_set_resources <-------\n"); -} - -static void sisnb_init(struct device *dev) -{ - uint32_t cmd, cmd_ref; - int needs_reset; - struct device *f0_dev, *f2_dev; - msr_t msr; - - - needs_reset = 0; - printk_debug("sisnb_init: ---------->\n"); - - //dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS756), 0); - msr = rdmsr(0xC001001A); - pci_write_config16(dev, 0x8E, msr.lo >> 16); // Topbound - pci_write_config8(dev, 0x7F, 0x08); // ACPI Base - outb(inb(0x856) | 0x40, 0x856); // Auto-Reset Function - - printk_debug("sisnb_init: <----------\n"); - printk_debug("done.\n"); -} - - -static struct device_operations sisnb_ops = { - .read_resources = sisnb_read_resources, - .set_resources = sisnb_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = sisnb_init, - .scan_bus = 0, - .ops_pci = 0, -}; - -static const struct pci_driver sisnb_driver __pci_driver = { - .ops = &sisnb_ops, - .vendor = PCI_VENDOR_ID_SIS, - .device = PCI_DEVICE_ID_SIS_SIS761, -}; |