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 typedef struct AspeedSegments { 33 hwaddr addr; 34 uint32_t size; 35 } AspeedSegments; 36 37 struct AspeedSMCState; 38 typedef struct AspeedSMCController { 39 const char *name; 40 uint8_t r_conf; 41 uint8_t r_ce_ctrl; 42 uint8_t r_ctrl0; 43 uint8_t r_timings; 44 uint8_t nregs_timings; 45 uint8_t conf_enable_w0; 46 uint8_t max_slaves; 47 const AspeedSegments *segments; 48 hwaddr flash_window_base; 49 uint32_t flash_window_size; 50 bool has_dma; 51 hwaddr dma_flash_mask; 52 hwaddr dma_dram_mask; 53 uint32_t nregs; 54 uint32_t (*segment_to_reg)(const struct AspeedSMCState *s, 55 const AspeedSegments *seg); 56 void (*reg_to_segment)(const struct AspeedSMCState *s, uint32_t reg, 57 AspeedSegments *seg); 58 } AspeedSMCController; 59 60 typedef struct AspeedSMCFlash { 61 struct AspeedSMCState *controller; 62 63 uint8_t id; 64 uint32_t size; 65 66 MemoryRegion mmio; 67 DeviceState *flash; 68 } AspeedSMCFlash; 69 70 #define TYPE_ASPEED_SMC "aspeed.smc" 71 OBJECT_DECLARE_TYPE(AspeedSMCState, AspeedSMCClass, ASPEED_SMC) 72 73 struct AspeedSMCClass { 74 SysBusDevice parent_obj; 75 const AspeedSMCController *ctrl; 76 }; 77 78 #define ASPEED_SMC_R_MAX (0x100 / 4) 79 80 struct AspeedSMCState { 81 SysBusDevice parent_obj; 82 83 const AspeedSMCController *ctrl; 84 85 MemoryRegion mmio; 86 MemoryRegion mmio_flash; 87 88 qemu_irq irq; 89 int irqline; 90 91 uint32_t num_cs; 92 qemu_irq *cs_lines; 93 bool inject_failure; 94 95 SSIBus *spi; 96 97 uint32_t regs[ASPEED_SMC_R_MAX]; 98 99 /* depends on the controller type */ 100 uint8_t r_conf; 101 uint8_t r_ce_ctrl; 102 uint8_t r_ctrl0; 103 uint8_t r_timings; 104 uint8_t conf_enable_w0; 105 106 /* for DMA support */ 107 uint64_t sdram_base; 108 109 AddressSpace flash_as; 110 MemoryRegion *dram_mr; 111 AddressSpace dram_as; 112 113 AspeedSMCFlash *flashes; 114 115 uint8_t snoop_index; 116 uint8_t snoop_dummies; 117 }; 118 119 #endif /* ASPEED_SMC_H */ 120