xref: /openbmc/qemu/include/hw/ppc/pnv_xscom.h (revision c39f95dc)
1 /*
2  * QEMU PowerPC PowerNV XSCOM bus definitions
3  *
4  * Copyright (c) 2016, IBM Corporation.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library 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 GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 #ifndef _PPC_PNV_XSCOM_H
20 #define _PPC_PNV_XSCOM_H
21 
22 #include "qom/object.h"
23 
24 typedef struct PnvXScomInterface {
25     Object parent;
26 } PnvXScomInterface;
27 
28 #define TYPE_PNV_XSCOM_INTERFACE "pnv-xscom-interface"
29 #define PNV_XSCOM_INTERFACE(obj) \
30      OBJECT_CHECK(PnvXScomInterface, (obj), TYPE_PNV_XSCOM_INTERFACE)
31 #define PNV_XSCOM_INTERFACE_CLASS(klass)                \
32     OBJECT_CLASS_CHECK(PnvXScomInterfaceClass, (klass), \
33                        TYPE_PNV_XSCOM_INTERFACE)
34 #define PNV_XSCOM_INTERFACE_GET_CLASS(obj) \
35      OBJECT_GET_CLASS(PnvXScomInterfaceClass, (obj), TYPE_PNV_XSCOM_INTERFACE)
36 
37 typedef struct PnvXScomInterfaceClass {
38     InterfaceClass parent;
39     int (*populate)(PnvXScomInterface *dev, void *fdt, int offset);
40 } PnvXScomInterfaceClass;
41 
42 /*
43  * Layout of the XSCOM PCB addresses of EX core 1 (POWER 8)
44  *
45  *   GPIO        0x1100xxxx
46  *   SCOM        0x1101xxxx
47  *   OHA         0x1102xxxx
48  *   CLOCK CTL   0x1103xxxx
49  *   FIR         0x1104xxxx
50  *   THERM       0x1105xxxx
51  *   <reserved>  0x1106xxxx
52  *               ..
53  *               0x110Exxxx
54  *   PCB SLAVE   0x110Fxxxx
55  */
56 
57 #define PNV_XSCOM_EX_CORE_BASE(base, i) ((base) | ((uint64_t)(i) << 24))
58 #define PNV_XSCOM_EX_CORE_SIZE    0x100000
59 
60 #define PNV_XSCOM_LPC_BASE        0xb0020
61 #define PNV_XSCOM_LPC_SIZE        0x4
62 
63 #define PNV_XSCOM_PSIHB_BASE      0x2010900
64 #define PNV_XSCOM_PSIHB_SIZE      0x20
65 
66 #define PNV_XSCOM_OCC_BASE        0x0066000
67 #define PNV_XSCOM_OCC_SIZE        0x6000
68 
69 extern void pnv_xscom_realize(PnvChip *chip, Error **errp);
70 extern int pnv_xscom_populate(PnvChip *chip, void *fdt, int offset);
71 
72 extern void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset,
73                                     MemoryRegion *mr);
74 extern void pnv_xscom_region_init(MemoryRegion *mr,
75                                   struct Object *owner,
76                                   const MemoryRegionOps *ops,
77                                   void *opaque,
78                                   const char *name,
79                                   uint64_t size);
80 
81 #endif /* _PPC_PNV_XSCOM_H */
82