1 /* 2 * ASPEED AST2400 SMC Controller (SPI Flash Only) 3 * 4 * Copyright (C) 2016 IBM Corp. 5 * 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: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 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 22 * THE SOFTWARE. 23 */ 24 25 #ifndef ASPEED_SMC_H 26 #define ASPEED_SMC_H 27 28 #include "hw/ssi/ssi.h" 29 #include "hw/sysbus.h" 30 #include "qom/object.h" 31 32 struct AspeedSMCState; 33 struct AspeedSMCClass; 34 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; 39 40 struct AspeedSMCState *controller; 41 struct AspeedSMCClass *asc; 42 uint8_t cs; 43 44 MemoryRegion mmio; 45 }; 46 47 #define TYPE_ASPEED_SMC "aspeed.smc" 48 OBJECT_DECLARE_TYPE(AspeedSMCState, AspeedSMCClass, ASPEED_SMC) 49 50 #define ASPEED_SMC_R_MAX (0x100 / 4) 51 #define ASPEED_SMC_CS_MAX 5 52 53 struct AspeedSMCState { 54 SysBusDevice parent_obj; 55 56 MemoryRegion mmio; 57 MemoryRegion mmio_flash_container; 58 MemoryRegion mmio_flash; 59 60 qemu_irq irq; 61 62 qemu_irq *cs_lines; 63 bool inject_failure; 64 65 SSIBus *spi; 66 67 uint32_t regs[ASPEED_SMC_R_MAX]; 68 69 /* depends on the controller type */ 70 uint8_t r_conf; 71 uint8_t r_ce_ctrl; 72 uint8_t r_ctrl0; 73 uint8_t r_timings; 74 uint8_t conf_enable_w0; 75 76 AddressSpace flash_as; 77 MemoryRegion *dram_mr; 78 AddressSpace dram_as; 79 uint64_t dram_base; 80 81 AspeedSMCFlash flashes[ASPEED_SMC_CS_MAX]; 82 83 uint8_t snoop_index; 84 uint8_t snoop_dummies; 85 bool unselect; 86 }; 87 88 typedef struct AspeedSegments { 89 hwaddr addr; 90 uint32_t size; 91 } AspeedSegments; 92 93 struct AspeedSMCClass { 94 SysBusDeviceClass parent_obj; 95 96 uint8_t r_conf; 97 uint8_t r_ce_ctrl; 98 uint8_t r_ctrl0; 99 uint8_t r_timings; 100 uint8_t nregs_timings; 101 uint8_t conf_enable_w0; 102 uint8_t cs_num_max; 103 const uint32_t *resets; 104 const AspeedSegments *segments; 105 uint32_t segment_addr_mask; 106 hwaddr flash_window_base; 107 uint32_t flash_window_size; 108 uint32_t features; 109 hwaddr dma_flash_mask; 110 hwaddr dma_dram_mask; 111 uint32_t dma_start_length; 112 uint32_t nregs; 113 uint32_t (*segment_to_reg)(const AspeedSMCState *s, 114 const AspeedSegments *seg); 115 void (*reg_to_segment)(const AspeedSMCState *s, uint32_t reg, 116 AspeedSegments *seg); 117 void (*dma_ctrl)(AspeedSMCState *s, uint32_t value); 118 int (*addr_width)(const AspeedSMCState *s); 119 const MemoryRegionOps *reg_ops; 120 }; 121 122 #endif /* ASPEED_SMC_H */ 123