xref: /openbmc/qemu/include/hw/ppc/pnv_xscom.h (revision fe29141b)
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 (*dt_xscom)(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    0x10000000ull
58 
59 #define PNV_XSCOM_EX_BASE(core) \
60     (PNV_XSCOM_EX_CORE_BASE | ((uint64_t)(core) << 24))
61 #define PNV_XSCOM_EX_SIZE         0x100000
62 
63 #define PNV_XSCOM_P9_EC_BASE(core) \
64     ((uint64_t)(((core) & 0x1F) + 0x20) << 24)
65 #define PNV_XSCOM_P9_EC_SIZE      0x100000
66 
67 #define PNV_XSCOM_LPC_BASE        0xb0020
68 #define PNV_XSCOM_LPC_SIZE        0x4
69 
70 #define PNV_XSCOM_PSIHB_BASE      0x2010900
71 #define PNV_XSCOM_PSIHB_SIZE      0x20
72 
73 #define PNV_XSCOM_OCC_BASE        0x0066000
74 #define PNV_XSCOM_OCC_SIZE        0x6000
75 
76 extern void pnv_xscom_realize(PnvChip *chip, Error **errp);
77 extern int pnv_dt_xscom(PnvChip *chip, void *fdt, int offset);
78 
79 extern void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset,
80                                     MemoryRegion *mr);
81 extern void pnv_xscom_region_init(MemoryRegion *mr,
82                                   struct Object *owner,
83                                   const MemoryRegionOps *ops,
84                                   void *opaque,
85                                   const char *name,
86                                   uint64_t size);
87 
88 #endif /* _PPC_PNV_XSCOM_H */
89