/* * This file is part of the coreboot project. * * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> * * 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 <console/console.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> #include "vt8237r.h" #include "chip.h" /* * Datasheet: http://www.via.com.tw/en/downloads/datasheets/chipsets/ * VT8237R_SouthBridge_Revision2.06_Lead-Free.zip */ #if CONFIG_DEFAULT_CONSOLE_LOGLEVEL > 7 void writeback(struct device *dev, u16 where, u8 what) { u8 regval; pci_write_config8(dev, where, what); regval = pci_read_config8(dev, where); if (regval != what) printk(BIOS_DEBUG, "Writeback to %02x failed %02x\n", where, regval); } #else void writeback(struct device *dev, u16 where, u8 what) { pci_write_config8(dev, where, what); } #endif void dump_south(device_t dev) { int i, j; for (i = 0; i < 256; i += 16) { printk(BIOS_DEBUG, "%02x:", i); for (j = 0; j < 16; j++) printk(BIOS_DEBUG, " %02x", pci_read_config8(dev, i + j)); printk(BIOS_DEBUG, "\n"); } } static void vt8237r_enable(struct device *dev) { u16 vid, did; struct southbridge_via_vt8237r_config *sb = (struct southbridge_via_vt8237r_config *)dev->chip_info; if (dev->path.type == DEVICE_PATH_PCI) { vid = pci_read_config16(dev, PCI_VENDOR_ID); did = pci_read_config16(dev, PCI_DEVICE_ID); if (vid == PCI_VENDOR_ID_VIA && (did == PCI_DEVICE_ID_VIA_VT8237R_LPC || did == PCI_DEVICE_ID_VIA_VT8237A_LPC || did == PCI_DEVICE_ID_VIA_VT8237S_LPC)) { pci_write_config8(dev, 0x50, sb->fn_ctrl_lo); pci_write_config8(dev, 0x51, sb->fn_ctrl_hi); } } /* TODO: If SATA is disabled, move IDE to fn0 to conform PCI specs. */ } struct chip_operations southbridge_via_vt8237r_ops = { CHIP_NAME("VIA VT8237R Southbridge") .enable_dev = vt8237r_enable, };