hw/clock: Only propagate clock changes if the clock is changed
[qemu.git] / include / hw / ppc / pnv_lpc.h
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
20 #ifndef PPC_PNV_LPC_H
21 #define PPC_PNV_LPC_H
22
23 #include "hw/ppc/pnv_psi.h"
24
25 #define TYPE_PNV_LPC "pnv-lpc"
26 #define PNV_LPC(obj) \
27 OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV_LPC)
28 #define TYPE_PNV8_LPC TYPE_PNV_LPC "-POWER8"
29 #define PNV8_LPC(obj) OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV8_LPC)
30
31 #define TYPE_PNV9_LPC TYPE_PNV_LPC "-POWER9"
32 #define PNV9_LPC(obj) OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV9_LPC)
33
34 #define TYPE_PNV10_LPC TYPE_PNV_LPC "-POWER10"
35 #define PNV10_LPC(obj) OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV10_LPC)
36
37 typedef struct PnvLpcController {
38 DeviceState parent;
39
40 uint64_t eccb_stat_reg;
41 uint32_t eccb_data_reg;
42
43 /* OPB bus */
44 MemoryRegion opb_mr;
45 AddressSpace opb_as;
46
47 /* ISA IO and Memory space */
48 MemoryRegion isa_io;
49 MemoryRegion isa_mem;
50 MemoryRegion isa_fw;
51
52 /* Windows from OPB to ISA (aliases) */
53 MemoryRegion opb_isa_io;
54 MemoryRegion opb_isa_mem;
55 MemoryRegion opb_isa_fw;
56
57 /* Registers */
58 MemoryRegion lpc_hc_regs;
59 MemoryRegion opb_master_regs;
60
61 /* OPB Master LS registers */
62 uint32_t opb_irq_route0;
63 uint32_t opb_irq_route1;
64 uint32_t opb_irq_stat;
65 uint32_t opb_irq_mask;
66 uint32_t opb_irq_pol;
67 uint32_t opb_irq_input;
68
69 /* LPC HC registers */
70 uint32_t lpc_hc_fw_seg_idsel;
71 uint32_t lpc_hc_fw_rd_acc_size;
72 uint32_t lpc_hc_irqser_ctrl;
73 uint32_t lpc_hc_irqmask;
74 uint32_t lpc_hc_irqstat;
75 uint32_t lpc_hc_error_addr;
76
77 /* XSCOM registers */
78 MemoryRegion xscom_regs;
79
80 /* PSI to generate interrupts */
81 PnvPsi *psi;
82 } PnvLpcController;
83
84 #define PNV_LPC_CLASS(klass) \
85 OBJECT_CLASS_CHECK(PnvLpcClass, (klass), TYPE_PNV_LPC)
86 #define PNV_LPC_GET_CLASS(obj) \
87 OBJECT_GET_CLASS(PnvLpcClass, (obj), TYPE_PNV_LPC)
88
89 typedef struct PnvLpcClass {
90 DeviceClass parent_class;
91
92 int psi_irq;
93
94 DeviceRealize parent_realize;
95 } PnvLpcClass;
96
97 /*
98 * Old compilers error on typdef forward declarations. Keep them happy.
99 */
100 struct PnvChip;
101
102 ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp);
103 int pnv_dt_lpc(struct PnvChip *chip, void *fdt, int root_offset,
104 uint64_t lpcm_addr, uint64_t lpcm_size);
105
106 #endif /* PPC_PNV_LPC_H */