81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
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/*
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* viatool - dump all registers on a VIA CPU + chipset based system.
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*
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* Copyright (C) 2013 Alexandru Gagniuc
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "quirks.h"
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#include <stdio.h>
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typedef u8 sata_phy_config[64];
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static u32 sata_phy_read32(struct pci_dev *dev, u8 index)
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{
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/* The SATA PHY control registers are accessed by a funny index/value
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* scheme. Each byte (0,1,2,3) has its own 4-bit index */
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index = (index >> 2) & 0xf;
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u16 i16 = index | (index << 4) | (index << 8)| (index << 12);
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/* The index */
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pci_write_word(dev, 0x68, i16);
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/* The value */
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return pci_read_long(dev, 0x64);
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}
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static void vx900_sata_read_phy_config(struct pci_dev *dev, sata_phy_config cfg)
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{
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size_t i;
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u32* data = (u32*)cfg;
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for (i = 0; i < ( sizeof(sata_phy_config) ) >> 2; i++) {
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data[i] = sata_phy_read32(dev, i<<2);
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}
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}
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static int quirk_vx900_sata(struct pci_dev *dev)
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{
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sata_phy_config ephy;
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/* Get all the info in one pass */
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vx900_sata_read_phy_config(dev, ephy);
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/* Put it on the terminal for the user to read and be done with it */
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printf("SATA PHY config:\n");
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unsigned int i;
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for (i = 0; i < sizeof(sata_phy_config); i++) {
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if ((i & 0x0f) == 0) {
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printf("%.2x :", i);
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}
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if( (i & 0x0f) == 0x08 )
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printf("| ");
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printf("%.2x ", ephy[i]);
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if ((i & 0x0f) == 0x0f) {
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printf("\n");
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}
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}
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return 0;
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}
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static struct quirk vx900_sb_quirks[] = {
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{0, 0, 0x0f, 0, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_SATA,
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quirk_vx900_sata },
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{0, 0, 0, 0, 0, 0, 0},
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};
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struct quirk_list vx900_sb_quirk_list = {
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.pci_vendor_id = PCI_VENDOR_ID_VIA,
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.pci_device_id = PCI_DEVICE_ID_VIA_VX900_LPC,
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.dev_quirks = vx900_sb_quirks
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};
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