xref: /openbmc/qemu/include/hw/ppc/pnv_lpc.h (revision 520e210c)
1 /*
2  * QEMU PowerPC PowerNV LPC controller
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_LPC_H
20 #define _PPC_PNV_LPC_H
21 
22 #include "hw/ppc/pnv_psi.h"
23 
24 #define TYPE_PNV_LPC "pnv-lpc"
25 #define PNV_LPC(obj) \
26      OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV_LPC)
27 
28 typedef struct PnvLpcController {
29     DeviceState parent;
30 
31     uint64_t eccb_stat_reg;
32     uint32_t eccb_data_reg;
33 
34     /* OPB bus */
35     MemoryRegion opb_mr;
36     AddressSpace opb_as;
37 
38     /* ISA IO and Memory space */
39     MemoryRegion isa_io;
40     MemoryRegion isa_mem;
41     MemoryRegion isa_fw;
42 
43     /* Windows from OPB to ISA (aliases) */
44     MemoryRegion opb_isa_io;
45     MemoryRegion opb_isa_mem;
46     MemoryRegion opb_isa_fw;
47 
48     /* Registers */
49     MemoryRegion lpc_hc_regs;
50     MemoryRegion opb_master_regs;
51 
52     /* OPB Master LS registers */
53     uint32_t opb_irq_stat;
54     uint32_t opb_irq_mask;
55     uint32_t opb_irq_pol;
56     uint32_t opb_irq_input;
57 
58     /* LPC HC registers */
59     uint32_t lpc_hc_fw_seg_idsel;
60     uint32_t lpc_hc_fw_rd_acc_size;
61     uint32_t lpc_hc_irqser_ctrl;
62     uint32_t lpc_hc_irqmask;
63     uint32_t lpc_hc_irqstat;
64     uint32_t lpc_hc_error_addr;
65 
66     /* XSCOM registers */
67     MemoryRegion xscom_regs;
68 
69     /* PSI to generate interrupts */
70     PnvPsi *psi;
71 } PnvLpcController;
72 
73 ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp);
74 
75 #endif /* _PPC_PNV_LPC_H */
76