xref: /openbmc/qemu/hw/ide/ich.c (revision 2345c77c)
1 /*
2  * QEMU ICH Emulation
3  *
4  * Copyright (c) 2010 Sebastian Herbszt <herbszt@gmx.de>
5  * Copyright (c) 2010 Alexander Graf <agraf@suse.de>
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19  *
20  *
21  * lspci dump of a ICH-9 real device
22  *
23  * 00:1f.2 SATA controller [0106]: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller [8086:2922] (rev 02) (prog-if 01 [AHCI 1.0])
24  *         Subsystem: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller [8086:2922]
25  *         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
26  *         Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
27  *         Latency: 0
28  *         Interrupt: pin B routed to IRQ 222
29  *         Region 0: I/O ports at d000 [size=8]
30  *         Region 1: I/O ports at cc00 [size=4]
31  *         Region 2: I/O ports at c880 [size=8]
32  *         Region 3: I/O ports at c800 [size=4]
33  *         Region 4: I/O ports at c480 [size=32]
34  *         Region 5: Memory at febf9000 (32-bit, non-prefetchable) [size=2K]
35  *         Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/16 Enable+
36  *                 Address: fee0f00c  Data: 41d9
37  *         Capabilities: [70] Power Management version 3
38  *                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
39  *                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
40  *         Capabilities: [a8] SATA HBA <?>
41  *         Capabilities: [b0] Vendor Specific Information <?>
42  *         Kernel driver in use: ahci
43  *         Kernel modules: ahci
44  * 00: 86 80 22 29 07 04 b0 02 02 01 06 01 00 00 00 00
45  * 10: 01 d0 00 00 01 cc 00 00 81 c8 00 00 01 c8 00 00
46  * 20: 81 c4 00 00 00 90 bf fe 00 00 00 00 86 80 22 29
47  * 30: 00 00 00 00 80 00 00 00 00 00 00 00 0f 02 00 00
48  * 40: 00 80 00 80 00 00 00 00 00 00 00 00 00 00 00 00
49  * 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50  * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
51  * 70: 01 a8 03 40 08 00 00 00 00 00 00 00 00 00 00 00
52  * 80: 05 70 09 00 0c f0 e0 fe d9 41 00 00 00 00 00 00
53  * 90: 40 00 0f 82 93 01 00 00 00 00 00 00 00 00 00 00
54  * a0: ac 00 00 00 0a 00 12 00 12 b0 10 00 48 00 00 00
55  * b0: 09 00 06 20 00 00 00 00 00 00 00 00 00 00 00 00
56  * c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
57  * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
58  * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
59  * f0: 00 00 00 00 00 00 00 00 86 0f 02 00 00 00 00 00
60  *
61  */
62 
63 #include <hw/hw.h>
64 #include <hw/msi.h>
65 #include <hw/pc.h>
66 #include <hw/pci.h>
67 #include <hw/isa.h>
68 #include "block.h"
69 #include "block_int.h"
70 #include "dma.h"
71 
72 #include <hw/ide/pci.h>
73 #include <hw/ide/ahci.h>
74 
75 static int pci_ich9_ahci_init(PCIDevice *dev)
76 {
77     struct AHCIPCIState *d;
78     d = DO_UPCAST(struct AHCIPCIState, card, dev);
79 
80     ahci_init(&d->ahci, &dev->qdev, 6);
81 
82     pci_config_set_prog_interface(d->card.config, AHCI_PROGMODE_MAJOR_REV_1);
83 
84     d->card.config[PCI_CACHE_LINE_SIZE] = 0x08;  /* Cache line size */
85     d->card.config[PCI_LATENCY_TIMER]   = 0x00;  /* Latency timer */
86     pci_config_set_interrupt_pin(d->card.config, 1);
87 
88     /* XXX Software should program this register */
89     d->card.config[0x90]   = 1 << 6; /* Address Map Register - AHCI mode */
90 
91     qemu_register_reset(ahci_reset, d);
92 
93     msi_init(dev, 0x50, 1, true, false);
94     d->ahci.irq = d->card.irq[0];
95 
96     /* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */
97     pci_register_bar_simple(&d->card, 5, 0x1000, 0, d->ahci.mem);
98 
99     return 0;
100 }
101 
102 static int pci_ich9_uninit(PCIDevice *dev)
103 {
104     struct AHCIPCIState *d;
105     d = DO_UPCAST(struct AHCIPCIState, card, dev);
106 
107     msi_uninit(dev);
108     qemu_unregister_reset(ahci_reset, d);
109     ahci_uninit(&d->ahci);
110 
111     return 0;
112 }
113 
114 static void pci_ich9_write_config(PCIDevice *pci, uint32_t addr,
115                                   uint32_t val, int len)
116 {
117     pci_default_write_config(pci, addr, val, len);
118     msi_write_config(pci, addr, val, len);
119 }
120 
121 static PCIDeviceInfo ich_ahci_info[] = {
122     {
123         .qdev.name    = "ich9-ahci",
124         .qdev.alias   = "ahci",
125         .qdev.size    = sizeof(AHCIPCIState),
126         .init         = pci_ich9_ahci_init,
127         .exit         = pci_ich9_uninit,
128         .config_write = pci_ich9_write_config,
129         .vendor_id    = PCI_VENDOR_ID_INTEL,
130         .device_id    = PCI_DEVICE_ID_INTEL_82801IR,
131         .revision     = 0x02,
132         .class_id     = PCI_CLASS_STORAGE_SATA,
133     },{
134         /* end of list */
135     }
136 };
137 
138 static void ich_ahci_register(void)
139 {
140     pci_qdev_register_many(ich_ahci_info);
141 }
142 device_init(ich_ahci_register);
143