2 * the IDE Virtual Support Module of AMD CS5536
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzhangjin@gmail.com
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
16 #include <cs5536/cs5536.h>
17 #include <cs5536/cs5536_pci.h>
19 void pci_ide_write_reg(int reg, u32 value)
21 u32 hi = 0, lo = value;
25 _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
26 if (value & PCI_COMMAND_MASTER)
30 _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
33 if (value & PCI_STATUS_PARITY) {
34 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
35 if (lo & SB_PARE_ERR_FLAG) {
36 lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
37 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
41 case PCI_CACHE_LINE_SIZE:
43 _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
46 _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
49 if (value == PCI_BAR_RANGE_MASK) {
50 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
51 lo |= SOFT_BAR_IDE_FLAG;
52 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
53 } else if (value & 0x01) {
54 lo = (value & 0xfffffff0) | 0x1;
55 _wrmsr(IDE_MSR_REG(IDE_IO_BAR), hi, lo);
58 hi = 0x60000000 | ((value & 0x000ff000) >> 12);
59 lo = 0x000ffff0 | ((value & 0x00000fff) << 20);
60 _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM2), hi, lo);
64 if (value == CS5536_IDE_FLASH_SIGNATURE) {
65 _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
67 _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo);
69 _wrmsr(IDE_MSR_REG(IDE_CFG), hi, lo);
72 _wrmsr(IDE_MSR_REG(IDE_DTC), hi, lo);
74 case PCI_IDE_CAST_REG:
75 _wrmsr(IDE_MSR_REG(IDE_CAST), hi, lo);
78 _wrmsr(IDE_MSR_REG(IDE_ETC), hi, lo);
81 _wrmsr(IDE_MSR_REG(IDE_INTERNAL_PM), hi, lo);
88 u32 pci_ide_read_reg(int reg)
96 CFG_PCI_VENDOR_ID(CS5536_IDE_DEVICE_ID, CS5536_VENDOR_ID);
99 _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
101 conf_data |= PCI_COMMAND_IO;
102 _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
103 if ((lo & 0x30) == 0x30)
104 conf_data |= PCI_COMMAND_MASTER;
107 conf_data |= PCI_STATUS_66MHZ;
108 conf_data |= PCI_STATUS_FAST_BACK;
109 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
110 if (lo & SB_PARE_ERR_FLAG)
111 conf_data |= PCI_STATUS_PARITY;
112 conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
114 case PCI_CLASS_REVISION:
115 _rdmsr(IDE_MSR_REG(IDE_CAP), &hi, &lo);
116 conf_data = lo & 0x000000ff;
117 conf_data |= (CS5536_IDE_CLASS_CODE << 8);
119 case PCI_CACHE_LINE_SIZE:
120 _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
122 conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE, hi);
125 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
126 if (lo & SOFT_BAR_IDE_FLAG) {
127 conf_data = CS5536_IDE_RANGE |
128 PCI_BASE_ADDRESS_SPACE_IO;
129 lo &= ~SOFT_BAR_IDE_FLAG;
130 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
132 _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
133 conf_data = lo & 0xfffffff0;
138 case PCI_CARDBUS_CIS:
139 conf_data = PCI_CARDBUS_CIS_POINTER;
141 case PCI_SUBSYSTEM_VENDOR_ID:
143 CFG_PCI_VENDOR_ID(CS5536_IDE_SUB_ID, CS5536_SUB_VENDOR_ID);
145 case PCI_ROM_ADDRESS:
146 conf_data = PCI_EXPANSION_ROM_BAR;
148 case PCI_CAPABILITY_LIST:
149 conf_data = PCI_CAPLIST_POINTER;
151 case PCI_INTERRUPT_LINE:
153 CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_IDE_INTR);
155 case PCI_IDE_CFG_REG:
156 _rdmsr(IDE_MSR_REG(IDE_CFG), &hi, &lo);
159 case PCI_IDE_DTC_REG:
160 _rdmsr(IDE_MSR_REG(IDE_DTC), &hi, &lo);
163 case PCI_IDE_CAST_REG:
164 _rdmsr(IDE_MSR_REG(IDE_CAST), &hi, &lo);
167 case PCI_IDE_ETC_REG:
168 _rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo);
171 _rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo);