2 * ASPEED AST2400 SMC Controller (SPI Flash Only)
4 * Copyright (C) 2016 IBM Corp.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "hw/ssi/ssi.h"
29 #include "hw/sysbus.h"
30 #include "qom/object.h"
32 struct AspeedSMCState;
33 struct AspeedSMCClass;
35 #define TYPE_ASPEED_SMC_FLASH "aspeed.smc.flash"
36 OBJECT_DECLARE_SIMPLE_TYPE(AspeedSMCFlash, ASPEED_SMC_FLASH)
37 struct AspeedSMCFlash {
38 SysBusDevice parent_obj;
40 struct AspeedSMCState *controller;
41 struct AspeedSMCClass *asc;
47 #define TYPE_ASPEED_SMC "aspeed.smc"
48 OBJECT_DECLARE_TYPE(AspeedSMCState, AspeedSMCClass, ASPEED_SMC)
50 #define ASPEED_SMC_R_MAX (0x100 / 4)
51 #define ASPEED_SMC_CS_MAX 5
53 struct AspeedSMCState {
54 SysBusDevice parent_obj;
57 MemoryRegion mmio_flash_container;
58 MemoryRegion mmio_flash;
67 uint32_t regs[ASPEED_SMC_R_MAX];
69 /* depends on the controller type */
74 uint8_t conf_enable_w0;
76 AddressSpace flash_as;
77 MemoryRegion *dram_mr;
80 AspeedSMCFlash flashes[ASPEED_SMC_CS_MAX];
83 uint8_t snoop_dummies;
86 typedef struct AspeedSegments {
91 struct AspeedSMCClass {
92 SysBusDeviceClass parent_obj;
98 uint8_t nregs_timings;
99 uint8_t conf_enable_w0;
101 const uint32_t *resets;
102 const AspeedSegments *segments;
103 uint32_t segment_addr_mask;
104 hwaddr flash_window_base;
105 uint32_t flash_window_size;
107 hwaddr dma_flash_mask;
108 hwaddr dma_dram_mask;
110 uint32_t (*segment_to_reg)(const AspeedSMCState *s,
111 const AspeedSegments *seg);
112 void (*reg_to_segment)(const AspeedSMCState *s, uint32_t reg,
113 AspeedSegments *seg);
114 void (*dma_ctrl)(AspeedSMCState *s, uint32_t value);
115 int (*addr_width)(const AspeedSMCState *s);
118 #endif /* ASPEED_SMC_H */