Alexandru Gagniuc | 67f556c | 2012-08-10 03:55:42 -0500 | [diff] [blame] | 1 | /* |
| 2 | * viatool - dump all registers on a VIA CPU + chipset based system. |
| 3 | * |
| 4 | * Copyright (C) 2013 Alexandru Gagniuc |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version 2 |
| 9 | * of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Alexandru Gagniuc | 67f556c | 2012-08-10 03:55:42 -0500 | [diff] [blame] | 15 | */ |
| 16 | |
| 17 | #include "quirks.h" |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | |
| 21 | typedef u8 sata_phy_config[64]; |
| 22 | |
| 23 | static u32 sata_phy_read32(struct pci_dev *dev, u8 index) |
| 24 | { |
| 25 | /* The SATA PHY control registers are accessed by a funny index/value |
| 26 | * scheme. Each byte (0,1,2,3) has its own 4-bit index */ |
| 27 | index = (index >> 2) & 0xf; |
| 28 | u16 i16 = index | (index << 4) | (index << 8)| (index << 12); |
| 29 | /* The index */ |
| 30 | pci_write_word(dev, 0x68, i16); |
| 31 | /* The value */ |
| 32 | return pci_read_long(dev, 0x64); |
| 33 | } |
| 34 | |
| 35 | static void vx900_sata_read_phy_config(struct pci_dev *dev, sata_phy_config cfg) |
| 36 | { |
| 37 | size_t i; |
| 38 | u32* data = (u32*)cfg; |
| 39 | for (i = 0; i < ( sizeof(sata_phy_config) ) >> 2; i++) { |
| 40 | data[i] = sata_phy_read32(dev, i<<2); |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | static int quirk_vx900_sata(struct pci_dev *dev) |
| 45 | { |
| 46 | sata_phy_config ephy; |
| 47 | |
| 48 | /* Get all the info in one pass */ |
| 49 | vx900_sata_read_phy_config(dev, ephy); |
| 50 | |
| 51 | /* Put it on the terminal for the user to read and be done with it */ |
| 52 | printf("SATA PHY config:\n"); |
| 53 | unsigned int i; |
| 54 | for (i = 0; i < sizeof(sata_phy_config); i++) { |
| 55 | if ((i & 0x0f) == 0) { |
| 56 | printf("%.2x :", i); |
| 57 | } |
| 58 | if( (i & 0x0f) == 0x08 ) |
| 59 | printf("| "); |
| 60 | printf("%.2x ", ephy[i]); |
| 61 | if ((i & 0x0f) == 0x0f) { |
| 62 | printf("\n"); |
| 63 | } |
| 64 | } |
| 65 | return 0; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | |
| 70 | |
| 71 | static struct quirk vx900_sb_quirks[] = { |
| 72 | {0, 0, 0x0f, 0, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_SATA, |
| 73 | quirk_vx900_sata }, |
| 74 | {0, 0, 0, 0, 0, 0, 0}, |
| 75 | }; |
| 76 | |
| 77 | struct quirk_list vx900_sb_quirk_list = { |
| 78 | .pci_vendor_id = PCI_VENDOR_ID_VIA, |
| 79 | .pci_device_id = PCI_DEVICE_ID_VIA_VX900_LPC, |
| 80 | .dev_quirks = vx900_sb_quirks |
| 81 | }; |