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Diffstat (limited to 'src/northbridge/via/cn400/vlink.c')
| -rw-r--r-- | src/northbridge/via/cn400/vlink.c | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/src/northbridge/via/cn400/vlink.c b/src/northbridge/via/cn400/vlink.c deleted file mode 100644 index 2319e75ac9..0000000000 --- a/src/northbridge/via/cn400/vlink.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 Jon Harrison <bothlyn@blueyonder.co.uk> - * - * 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 - */ -#include <console/console.h> -#include <arch/io.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include "northbridge.h" -#include "cn400.h" - -static void noop_1k(u32 knops) -{ - u32 i; - - for (i = 0; i < 1024 * knops; i++) { - __asm__ volatile ("nop\n\t"); - } - - return; -} - -/* Vlink Performance Improvements */ -static void vlink_init(device_t dev) -{ - u8 reg, reg8; - int i, j; - - printk(BIOS_SPEW, "Entering CN400 %s\n", __func__); - - /* Disconnect the VLink Before Changing Settings */ - reg = pci_read_config8(dev, 0x47); - reg |= 0x04; - pci_write_config8(dev, 0x47, reg); - - /* Wait for anything pending to flush */ - noop_1k(20); - - /* Setup Vlink Mode 1 */ - pci_write_config8(dev, 0x4F, 0x01); - pci_write_config8(dev, 0x48, 0x13); - - /* PCI Buffer Control */ - pci_write_config8(dev, 0x70, 0x82); - - /* CPU to PCI Flow Control */ - pci_write_config8(dev, 0x71, 0xc8); - pci_write_config8(dev, 0x72, 0xee); - - /* PCI Master Control */ - pci_write_config8(dev, 0x73, 0x01); - pci_write_config8(dev, 0x74, 0x20); - - /* PCI Arbitration 1 */ - pci_write_config8(dev, 0x75, 0x0f); - - /* PCI Arbitration 2 */ - pci_write_config8(dev, 0x76, 0x50); - pci_write_config8(dev, 0x77, 0x6e); - pci_write_config8(dev, 0x7F, 0x10); - - pci_write_config8(dev, 0x94, 0x20); - pci_write_config8(dev, 0x95, 0x0f); - - /* V-Link CKG Control 1 */ - pci_write_config8(dev, 0xB0, 0x01); - - /* V-Link NB Compensation Control */ - pci_write_config8(dev, 0xB5, 0x46); - pci_write_config8(dev, 0xB6, 0x68); - reg = pci_read_config8(dev, 0xB4); - reg |= 0x01; - pci_write_config8(dev, 0xB4, reg); - - /* V-Link NB Receive Strobe Delay */ - pci_write_config8(dev, 0xB7, 0x02); - - /* V-Link SB Compensation Control */ - pci_write_config8(dev, 0xB9, 0x84); - reg = pci_read_config8(dev, 0xB8); - reg |= 0x01; - pci_write_config8(dev, 0xB8, reg); - - pci_write_config8(dev, 0xBA, 0x6a); - pci_write_config8(dev, 0xBB, 0x01); - -#ifdef DEBUG_CN400 - /* Reconnect the VLink Before Continuing*/ - reg = pci_read_config8(dev, 0x47); - reg &= ~0x04; - pci_write_config8(dev, 0x47, reg); - - printk(BIOS_SPEW, "%s PCI Header Regs::\n", dev_path(dev)); - - for (i = 0 ; i < 16; i++) - { - printk(BIOS_SPEW, "%02X: ", i*16); - for (j = 0; j < 16; j++) - { - reg8 = pci_read_config8(dev, j+(i*16)); - printk(BIOS_SPEW, "%02X ", reg8); - } - printk(BIOS_SPEW, "\n"); - } -#endif -} - -static const struct device_operations vlink_operations = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = vlink_init, - .ops_pci = 0, -}; - -static const struct pci_driver vlink_driver __pci_driver = { - .ops = &vlink_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN400_VLINK, -}; - -static void c3_host_init(device_t dev) -{ - u8 reg8; - int i, j; - - printk(BIOS_SPEW, "Entering CN400 %s\n", __func__); - - printk(BIOS_SPEW, "%s PCI Header Regs::\n", dev_path(dev)); - - for (i = 0 ; i < 16; i++) - { - printk(BIOS_SPEW, "%02X: ", i*16); - for (j = 0; j < 16; j++) - { - reg8 = pci_read_config8(dev, j+(i*16)); - printk(BIOS_SPEW, "%02X ", reg8); - } - printk(BIOS_SPEW, "\n"); - } - -} - -static const struct device_operations c3_host_operations = { - .read_resources = DEVICE_NOOP, - .set_resources = DEVICE_NOOP, - .enable_resources = DEVICE_NOOP, - .init = c3_host_init, - .ops_pci = 0, -}; - -static const struct pci_driver c3_host_driver __pci_driver = { - .ops = &c3_host_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN400_HOST, -}; - - -static void c3_err_init(device_t dev) -{ - u8 reg8; - int i, j; - - printk(BIOS_SPEW, "Entering CN400 %s\n", __func__); - - printk(BIOS_SPEW, "%s PCI Header Regs::\n", dev_path(dev)); - - for (i = 0 ; i < 16; i++) - { - printk(BIOS_SPEW, "%02X: ", i*16); - for (j = 0; j < 16; j++) - { - reg8 = pci_read_config8(dev, j+(i*16)); - printk(BIOS_SPEW, "%02X ", reg8); - } - printk(BIOS_SPEW, "\n"); - } - -} - -static const struct device_operations c3_err_operations = { - .read_resources = DEVICE_NOOP, - .set_resources = DEVICE_NOOP, - .enable_resources = DEVICE_NOOP, - .init = c3_err_init, - .ops_pci = 0, -}; - -static const struct pci_driver c3_err_driver __pci_driver = { - .ops = &c3_err_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN400_ERR, -}; - -static void cn400_pm_init(device_t dev) -{ - u8 reg8; - int i, j; - - printk(BIOS_SPEW, "Entering CN400 %s\n", __func__); - - printk(BIOS_SPEW, "%s PCI Header Regs::\n", dev_path(dev)); - - for (i = 0 ; i < 16; i++) - { - printk(BIOS_SPEW, "%02X: ", i*16); - for (j = 0; j < 16; j++) - { - reg8 = pci_read_config8(dev, j+(i*16)); - printk(BIOS_SPEW, "%02X ", reg8); - } - printk(BIOS_SPEW, "\n"); - } - -} - -static const struct device_operations cn400_pm_operations = { - .read_resources = DEVICE_NOOP, - .set_resources = DEVICE_NOOP, - .enable_resources = DEVICE_NOOP, - .init = cn400_pm_init, - .ops_pci = 0, -}; - -static const struct pci_driver cn400_pm_driver __pci_driver = { - .ops = &c3_err_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN400_PM, -}; |